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source: XmlTools2/trunk/libs/TinyJS.cpp@ 917

Last change on this file since 917 was 906, checked in by s10k, 11 years ago

File size: 217.5 KB

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1	/*
2	* TinyJS
3	*
4	* A single-file Javascript-alike engine
5	*
6	* Authored By Gordon Williams <gw@pur3.co.uk>
7	*
8	* Copyright (C) 2009 Pur3 Ltd
9	*
10
11	* 42TinyJS
12	*
13	* A fork of TinyJS with the goal to makes a more JavaScript/ECMA compliant engine
14	*
15	* Authored / Changed By Armin Diedering <armin@diedering.de>
16	*
17	* Copyright (C) 2010-2013 ardisoft
18	*
19	*
20	* Permission is hereby granted, free of charge, to any person obtaining a copy of
21	* this software and associated documentation files (the "Software"), to deal in
22	* the Software without restriction, including without limitation the rights to
23	* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
24	* of the Software, and to permit persons to whom the Software is furnished to do
25	* so, subject to the following conditions:
26
27	* The above copyright notice and this permission notice shall be included in all
28	* copies or substantial portions of the Software.
29
30	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
31	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
32	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
33	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
34	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
35	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36	* SOFTWARE.
37	*/
38
39	#ifdef _DEBUG
40	# ifndef _MSC_VER
41	# define DEBUG_MEMORY 1
42	# endif
43	#endif
44	#include <sstream>
45
46	#include "TinyJS.h"
47
48	#ifndef ASSERT
49	# define ASSERT(X) assert(X)
50	#endif
51
52	#ifndef NO_REGEXP
53	# if defined HAVE_TR1_REGEX
54	# include <tr1/regex>
55	using namespace std::tr1;
56	# elif defined HAVE_BOOST_REGEX
57	# include <boost/regex.hpp>
58	using namespace boost;
59	# else
60	# include <regex>
61	# endif
62	#endif
63	#include <stdio.h> /* printf, scanf, NULL */
64	#include <stdlib.h>
65	#include <cstring>
66	#include <algorithm>
67	#include <cmath>
68	#include <memory>
69	#include <iterator>
70	#include "TinyJS_Functions.h"
71
72	using namespace std;
73
74	// -----------------------------------------------------------------------------------
75	//////////////////////////////////////////////////////////////////////////
76	/// Memory Debug
77	//////////////////////////////////////////////////////////////////////////
78
79	//#define DEBUG_MEMORY 1
80
81	#if DEBUG_MEMORY
82
83	vector<CScriptVar*> allocatedVars;
84	vector<CScriptVarLink*> allocatedLinks;
85
86	void mark_allocated(CScriptVar *v) {
87	allocatedVars.push_back(v);
88	}
89
90	void mark_deallocated(CScriptVar *v) {
91	for (size_t i=0;i<allocatedVars.size();i++) {
92	if (allocatedVars[i] == v) {
93	allocatedVars.erase(allocatedVars.begin()+i);
94	break;
95	}
96	}
97	}
98
99	void mark_allocated(CScriptVarLink *v) {
100	allocatedLinks.push_back(v);
101	}
102
103	void mark_deallocated(CScriptVarLink *v) {
104	for (size_t i=0;i<allocatedLinks.size();i++) {
105	if (allocatedLinks[i] == v) {
106	allocatedLinks.erase(allocatedLinks.begin()+i);
107	break;
108	}
109	}
110	}
111
112	void show_allocated() {
113	for (size_t i=0;i<allocatedVars.size();i++) {
114	printf("ALLOCATED, %d refs\n", allocatedVars[i]->getRefs());
115	allocatedVars[i]->trace(" ");
116	}
117	for (size_t i=0;i<allocatedLinks.size();i++) {
118	printf("ALLOCATED LINK %s, allocated[%d] to \n", allocatedLinks[i]->getName().c_str(), allocatedLinks[i]->getVarPtr()->getRefs());
119	allocatedLinks[i]->getVarPtr()->trace(" ");
120	}
121	allocatedVars.clear();
122	allocatedLinks.clear();
123	}
124	#endif
125
126
127	//////////////////////////////////////////////////////////////////////////
128	/// Utils
129	//////////////////////////////////////////////////////////////////////////
130
131	inline bool isWhitespace(char ch) {
132	return (ch==' ') \|\| (ch=='\t') \|\| (ch=='\n') \|\| (ch=='\r');
133	}
134
135	inline bool isNumeric(char ch) {
136	return (ch>='0') && (ch<='9');
137	}
138	uint32_t isArrayIndex(const string &str) {
139	if(str.size()==0 \|\| !isNumeric(str[0]) \|\| (str.size()>1 && str[0]=='0') ) return -1; // empty or (more as 1 digit and beginning with '0')
140	CNumber idx;
141	const char *endptr;
142	idx.parseInt(str.c_str(), 10, &endptr);
143	if(*endptr \|\| idx>uint32_t(0xFFFFFFFFUL)) return -1;
144	return idx.toUInt32();
145	}
146	inline bool isHexadecimal(char ch) {
147	return ((ch>='0') && (ch<='9')) \|\| ((ch>='a') && (ch<='f')) \|\| ((ch>='A') && (ch<='F'));
148	}
149	inline bool isOctal(char ch) {
150	return ((ch>='0') && (ch<='7'));
151	}
152	inline bool isAlpha(char ch) {
153	return ((ch>='a') && (ch<='z')) \|\| ((ch>='A') && (ch<='Z')) \|\| ch=='_' \|\| ch=='$';
154	}
155
156	bool isIDString(const char *s) {
157	if (!isAlpha(*s))
158	return false;
159	while (*s) {
160	if (!(isAlpha(s) \|\| isNumeric(s)))
161	return false;
162	s++;
163	}
164	return true;
165	}
166
167	void replace(string &str, char textFrom, const char *textTo) {
168	int sLen = strlen(textTo);
169	size_t p = str.find(textFrom);
170	while (p != string::npos) {
171	str = str.substr(0, p) + textTo + str.substr(p+1);
172	p = str.find(textFrom, p+sLen);
173	}
174	}
175	string int2string(int32_t intData) {
176	ostringstream str;
177	str << intData;
178	return str.str();
179	}
180	string int2string(uint32_t intData) {
181	ostringstream str;
182	str << intData;
183	return str.str();
184	}
185	string float2string(const double &floatData) {
186	ostringstream str;
187	str.unsetf(ios::floatfield);
188	#if (defined(_MSC_VER) && _MSC_VER >= 1600) \|\| __cplusplus >= 201103L
189	str.precision(numeric_limits<double>::max_digits10);
190	#else
191	str.precision(numeric_limits<double>::digits10+2);
192	#endif
193	str << floatData;
194	return str.str();
195	}
196	/// convert the given string into a quoted string suitable for javascript
197	string getJSString(const string &str) {
198	char buffer[5] = "\\x00";
199	string nStr; nStr.reserve(str.length());
200	nStr.push_back('\"');
201	for (string::const_iterator i=str.begin();i!=str.end();i++) {
202	const char *replaceWith = 0;
203	switch (*i) {
204	case '\\': replaceWith = "\\\\"; break;
205	case '\n': replaceWith = "\\n"; break;
206	case '\r': replaceWith = "\\r"; break;
207	case '\a': replaceWith = "\\a"; break;
208	case '\b': replaceWith = "\\b"; break;
209	case '\f': replaceWith = "\\f"; break;
210	case '\t': replaceWith = "\\t"; break;
211	case '\v': replaceWith = "\\v"; break;
212	case '"': replaceWith = "\\\""; break;
213	default: {
214	int nCh = ((unsigned char)*i) & 0xff;
215	if(nCh<32 \|\| nCh>127) {
216	static char hex[] = "0123456789ABCDEF";
217	buffer[2] = hex[(nCh>>4)&0x0f];
218	buffer[3] = hex[nCh&0x0f];
219	replaceWith = buffer;
220	};
221	}
222	}
223	if (replaceWith)
224	nStr.append(replaceWith);
225	else
226	nStr.push_back(*i);
227	}
228	nStr.push_back('\"');
229	return nStr;
230	}
231
232	static inline string getIDString(const string& str) {
233	if(isIDString(str.c_str()) && CScriptToken::isReservedWord(str)==LEX_ID)
234	return str;
235	return getJSString(str);
236	}
237
238
239	//////////////////////////////////////////////////////////////////////////
240	/// CScriptException
241	//////////////////////////////////////////////////////////////////////////
242
243	string CScriptException::toString() {
244	ostringstream msg;
245	msg << ERROR_NAME[errorType] << ": " << message;
246	if(lineNumber >= 0) msg << " at Line:" << lineNumber+1;
247	if(column >=0) msg << " Column:" << column+1;
248	if(fileName.length()) msg << " in " << fileName;
249	return msg.str();
250	}
251
252
253	//////////////////////////////////////////////////////////////////////////
254	/// CScriptLex
255	//////////////////////////////////////////////////////////////////////////
256
257	CScriptLex::CScriptLex(const char *Code, const string &File, int Line, int Column) : data(Code) {
258	currentFile = File;
259	pos.currentLineStart = pos.tokenStart = data;
260	pos.currentLine = Line;
261	reset(pos);
262	}
263
264	void CScriptLex::reset(const POS &toPos) { ///< Reset this lex so we can start again
265	dataPos = toPos.tokenStart;
266	tk = last_tk = 0;
267	tkStr = "";
268	pos = toPos;
269	lineBreakBeforeToken = false;
270	currCh = nextCh = 0;
271	getNextCh(); // currCh
272	getNextCh(); // nextCh
273	getNextToken();
274	}
275
276	void CScriptLex::check(int expected_tk, int alternate_tk/=-1/) {
277	if (expected_tk==';' && tk==LEX_EOF) return; // ignore last missing ';'
278	if (tk!=expected_tk && tk!=alternate_tk) {
279	ostringstream errorString;
280	if(expected_tk == LEX_EOF)
281	errorString << "Got unexpected " << CScriptToken::getTokenStr(tk);
282	else
283	errorString << "Got '" << CScriptToken::getTokenStr(tk) << "' expected '" << CScriptToken::getTokenStr(expected_tk) << "'";
284	if(alternate_tk!=-1) errorString << " or '" << CScriptToken::getTokenStr(alternate_tk) << "'";
285	throw new CScriptException(SyntaxError, errorString.str(), currentFile, pos.currentLine, currentColumn());
286	}
287	}
288	void CScriptLex::match(int expected_tk1, int alternate_tk/=-1/) {
289	check(expected_tk1, alternate_tk);
290	int line = pos.currentLine;
291	getNextToken();
292	lineBreakBeforeToken = line != pos.currentLine;
293	}
294
295	void CScriptLex::getNextCh() {
296	if(currCh == '\n') { // Windows or Linux
297	pos.currentLine++;
298	pos.tokenStart = pos.currentLineStart = dataPos - (nextCh == LEX_EOF ? 0 : 1);
299	}
300	currCh = nextCh;
301	if ( (nextCh = *dataPos) != LEX_EOF ) dataPos++; // stay on EOF
302	if(currCh == '\r') { // Windows or Mac
303	if(nextCh == '\n')
304	getNextCh(); // Windows '\r\n\' --> skip '\r'
305	else
306	currCh = '\n'; // Mac (only '\r') --> convert '\r' to '\n'
307	}
308	}
309
310	static uint16_t not_allowed_tokens_befor_regexp[] = {LEX_ID, LEX_INT, LEX_FLOAT, LEX_STR, LEX_R_TRUE, LEX_R_FALSE, LEX_R_NULL, ']', ')', '.', LEX_EOF};
311	void CScriptLex::getNextToken() {
312	while (currCh && isWhitespace(currCh)) getNextCh();
313	// newline comments
314	if (currCh=='/' && nextCh=='/') {
315	while (currCh && currCh!='\n') getNextCh();
316	getNextCh();
317	getNextToken();
318	return;
319	}
320	// block comments
321	if (currCh=='/' && nextCh=='*') {
322	while (currCh && (currCh!='*' \|\| nextCh!='/')) getNextCh();
323	getNextCh();
324	getNextCh();
325	getNextToken();
326	return;
327	}
328	last_tk = tk;
329	tk = LEX_EOF;
330	tkStr.clear();
331	// record beginning of this token
332	pos.tokenStart = dataPos - (nextCh == LEX_EOF ? (currCh == LEX_EOF ? 0 : 1) : 2);
333	// tokens
334	if (isAlpha(currCh)) { // IDs
335	while (isAlpha(currCh) \|\| isNumeric(currCh)) {
336	tkStr += currCh;
337	getNextCh();
338	}
339	tk = CScriptToken::isReservedWord(tkStr);
340	} else if (isNumeric(currCh) \|\| (currCh=='.' && isNumeric(nextCh))) { // Numbers
341	if(currCh=='.') tkStr+='0';
342	bool isHex = false, isOct=false;
343	if (currCh=='0') {
344	tkStr += currCh; getNextCh();
345	if(isOctal(currCh)) isOct = true;
346	}
347	if (currCh=='x' \|\| currCh=='X') {
348	isHex = true;
349	tkStr += currCh; getNextCh();
350	}
351	tk = LEX_INT;
352	while (isOctal(currCh) \|\| (!isOct && isNumeric(currCh)) \|\| (isHex && isHexadecimal(currCh))) {
353	tkStr += currCh;
354	getNextCh();
355	}
356	if (!isHex && !isOct && currCh=='.') {
357	tk = LEX_FLOAT;
358	tkStr += '.';
359	getNextCh();
360	while (isNumeric(currCh)) {
361	tkStr += currCh;
362	getNextCh();
363	}
364	}
365	// do fancy e-style floating point
366	if (!isHex && !isOct && (currCh=='e' \|\| currCh=='E')) {
367	tk = LEX_FLOAT;
368	tkStr += currCh; getNextCh();
369	if (currCh=='-') { tkStr += currCh; getNextCh(); }
370	while (isNumeric(currCh)) {
371	tkStr += currCh; getNextCh();
372	}
373	}
374	} else if (currCh=='"' \|\| currCh=='\'') { // strings...
375	char endCh = currCh;
376	getNextCh();
377	while (currCh && currCh!=endCh && currCh!='\n') {
378	if (currCh == '\\') {
379	getNextCh();
380	switch (currCh) {
381	case '\n' : break; // ignore newline after '\'
382	case 'n': tkStr += '\n'; break;
383	case 'r': tkStr += '\r'; break;
384	case 'a': tkStr += '\a'; break;
385	case 'b': tkStr += '\b'; break;
386	case 'f': tkStr += '\f'; break;
387	case 't': tkStr += '\t'; break;
388	case 'v': tkStr += '\v'; break;
389	case 'x': { // hex digits
390	getNextCh();
391	if(isHexadecimal(currCh)) {
392	char buf[3]="\0\0";
393	buf[0] = currCh;
394	for(int i=0; i<2 && isHexadecimal(nextCh); i++) {
395	getNextCh(); buf[i] = currCh;
396	}
397	tkStr += (char)strtol(buf, 0, 16);
398	} else
399	throw new CScriptException(SyntaxError, "malformed hexadezimal character escape sequence", currentFile, pos.currentLine, currentColumn());
400	}
401	default: {
402	if(isOctal(currCh)) {
403	char buf[4]="\0\0\0";
404	buf[0] = currCh;
405	for(int i=1; i<3 && isOctal(nextCh); i++) {
406	getNextCh(); buf[i] = currCh;
407	}
408	tkStr += (char)strtol(buf, 0, 8);
409	}
410	else tkStr += currCh;
411	}
412	}
413	} else {
414	tkStr += currCh;
415	}
416	getNextCh();
417	}
418	if(currCh != endCh)
419	throw new CScriptException(SyntaxError, "unterminated string literal", currentFile, pos.currentLine, currentColumn());
420	getNextCh();
421	tk = LEX_STR;
422	} else {
423	// single chars
424	tk = currCh;
425	if (currCh) getNextCh();
426	if (tk=='=' && currCh=='=') { // ==
427	tk = LEX_EQUAL;
428	getNextCh();
429	if (currCh=='=') { // ===
430	tk = LEX_TYPEEQUAL;
431	getNextCh();
432	}
433	} else if (tk=='!' && currCh=='=') { // !=
434	tk = LEX_NEQUAL;
435	getNextCh();
436	if (currCh=='=') { // !==
437	tk = LEX_NTYPEEQUAL;
438	getNextCh();
439	}
440	} else if (tk=='<') {
441	if (currCh=='=') { // <=
442	tk = LEX_LEQUAL;
443	getNextCh();
444	} else if (currCh=='<') { // <<
445	tk = LEX_LSHIFT;
446	getNextCh();
447	if (currCh=='=') { // <<=
448	tk = LEX_LSHIFTEQUAL;
449	getNextCh();
450	}
451	}
452	} else if (tk=='>') {
453	if (currCh=='=') { // >=
454	tk = LEX_GEQUAL;
455	getNextCh();
456	} else if (currCh=='>') { // >>
457	tk = LEX_RSHIFT;
458	getNextCh();
459	if (currCh=='=') { // >>=
460	tk = LEX_RSHIFTEQUAL;
461	getNextCh();
462	} else if (currCh=='>') { // >>>
463	tk = LEX_RSHIFTU;
464	getNextCh();
465	if (currCh=='=') { // >>>=
466	tk = LEX_RSHIFTUEQUAL;
467	getNextCh();
468	}
469	}
470	}
471	} else if (tk=='+') {
472	if (currCh=='=') { // +=
473	tk = LEX_PLUSEQUAL;
474	getNextCh();
475	} else if (currCh=='+') { // ++
476	tk = LEX_PLUSPLUS;
477	getNextCh();
478	}
479	} else if (tk=='-') {
480	if (currCh=='=') { // -=
481	tk = LEX_MINUSEQUAL;
482	getNextCh();
483	} else if (currCh=='-') { // --
484	tk = LEX_MINUSMINUS;
485	getNextCh();
486	}
487	} else if (tk=='&') {
488	if (currCh=='=') { // &=
489	tk = LEX_ANDEQUAL;
490	getNextCh();
491	} else if (currCh=='&') { // &&
492	tk = LEX_ANDAND;
493	getNextCh();
494	}
495	} else if (tk=='\|') {
496	if (currCh=='=') { // \|=
497	tk = LEX_OREQUAL;
498	getNextCh();
499	} else if (currCh=='\|') { // \|\|
500	tk = LEX_OROR;
501	getNextCh();
502	}
503	} else if (tk=='^' && currCh=='=') {
504	tk = LEX_XOREQUAL;
505	getNextCh();
506	} else if (tk=='*' && currCh=='=') {
507	tk = LEX_ASTERISKEQUAL;
508	getNextCh();
509	} else if (tk=='/') {
510	// check if it's a RegExp-Literal
511	tk = LEX_REGEXP;
512	for(uint16_t p = not_allowed_tokens_befor_regexp; p; p++) {
513	if(*p==last_tk) { tk = '/'; break; }
514	}
515	if(tk == LEX_REGEXP) {
516	#ifdef NO_REGEXP
517	throw new CScriptException(Error, "42TinyJS was built without support for regular expressions", currentFile, pos.currentLine, currentColumn());
518	#endif
519	tkStr = "/";
520	while (currCh && currCh!='/' && currCh!='\n') {
521	if (currCh == '\\' && nextCh == '/') {
522	tkStr.append(1, currCh);
523	getNextCh();
524	}
525	tkStr.append(1, currCh);
526	getNextCh();
527	}
528	if(currCh == '/') {
529	#ifndef NO_REGEXP
530	try { regex(tkStr.substr(1), regex_constants::ECMAScript); } catch(regex_error e) {
531	throw new CScriptException(SyntaxError, string(e.what())+" - "+CScriptVarRegExp::ErrorStr(e.code()), currentFile, pos.currentLine, currentColumn());
532	}
533	#endif /* NO_REGEXP */
534	do {
535	tkStr.append(1, currCh);
536	getNextCh();
537	} while (currCh=='g' \|\| currCh=='i' \|\| currCh=='m' \|\| currCh=='y');
538	} else
539	throw new CScriptException(SyntaxError, "unterminated regular expression literal", currentFile, pos.currentLine, currentColumn());
540	} else if(currCh=='=') {
541	tk = LEX_SLASHEQUAL;
542	getNextCh();
543	}
544	} else if (tk=='%' && currCh=='=') {
545	tk = LEX_PERCENTEQUAL;
546	getNextCh();
547	}
548	}
549	/* This isn't quite right yet */
550	}
551
552
553	//////////////////////////////////////////////////////////////////////////
554	// CScriptTokenDataForwards
555	//////////////////////////////////////////////////////////////////////////
556
557	bool CScriptTokenDataForwards::compare_fnc_token_by_name::operator()(const CScriptToken& lhs, const CScriptToken& rhs) const {
558	return lhs.Fnc().name < rhs.Fnc().name;
559	}
560	bool CScriptTokenDataForwards::checkRedefinition(const string &Str, bool checkVarsInLetScope) {
561	STRING_SET_it it = varNames[LETS].find(Str);
562	if(it!=varNames[LETS].end()) return false;
563	else if(checkVarsInLetScope) {
564	STRING_SET_it it = vars_in_letscope.find(Str);
565	if(it!=vars_in_letscope.end()) return false;
566	}
567	return true;
568	}
569
570	void CScriptTokenDataForwards::addVars( STRING_VECTOR_t &Vars ) {
571	varNames[VARS].insert(Vars.begin(), Vars.end());
572	}
573	void CScriptTokenDataForwards::addConsts( STRING_VECTOR_t &Vars ) {
574	varNames[CONSTS].insert(Vars.begin(), Vars.end());
575	}
576	std::string CScriptTokenDataForwards::addVarsInLetscope( STRING_VECTOR_t &Vars )
577	{
578	for(STRING_VECTOR_it it=Vars.begin(); it!=Vars.end(); ++it) {
579	if(!checkRedefinition(it, false)) return it;
580	vars_in_letscope.insert(*it);
581	}
582	return "";
583	}
584
585	std::string CScriptTokenDataForwards::addLets( STRING_VECTOR_t &Lets )
586	{
587	for(STRING_VECTOR_it it=Lets.begin(); it!=Lets.end(); ++it) {
588	if(!checkRedefinition(it, true)) return it;
589	varNames[LETS].insert(*it);
590	}
591	return "";
592	}
593
594
595	//////////////////////////////////////////////////////////////////////////
596	// CScriptTokenDataLoop
597	//////////////////////////////////////////////////////////////////////////
598
599	std::string CScriptTokenDataLoop::getParsableString(const string &IndentString/=""/, const string &Indent/=""/ ) {
600	static const char *heads[] = {"for each(", "for(", "for(", "for(", "while(", "do "};
601	static const char *ops[] = {" in ", " in ", " of ", "; "};
602	string out = heads[type];
603	if(init.size() && type==FOR)out.append(CScriptToken::getParsableString(init));
604	if(type<=WHILE) out.append(CScriptToken::getParsableString(condition.begin(), condition.end()-(type>=FOR ? 0 : 7)));
605	if(type<=FOR) out.append(ops[type]);
606	if(iter.size()) out.append(CScriptToken::getParsableString(iter));
607	out.append(")");
608	out.append(CScriptToken::getParsableString(body));
609	if(type==DO)out.append(" while(").append(CScriptToken::getParsableString(condition)).append(");");
610	return out;
611	}
612
613
614	//////////////////////////////////////////////////////////////////////////
615	// CScriptTokenDataTry
616	//////////////////////////////////////////////////////////////////////////
617
618	std::string CScriptTokenDataTry::getParsableString( const string &IndentString/=""/, const string &Indent/=""/ ) {
619	string out = "try ";
620	string nl = Indent.size() ? "\n"+IndentString : " ";
621
622	out.append(CScriptToken::getParsableString(tryBlock, IndentString, Indent));
623	for(CScriptTokenDataTry::CatchBlock_it catchBlock = catchBlocks.begin(); catchBlock!=catchBlocks.end(); catchBlock++) {
624	out.append(nl).append("catch(").append(catchBlock->indentifiers->getParsableString());
625	if(catchBlock->condition.size()>1) {
626	out.append(" if ").append(CScriptToken::getParsableString(catchBlock->condition.begin()+1, catchBlock->condition.end()));
627	}
628	out.append(") ").append(CScriptToken::getParsableString(catchBlock->block, IndentString, Indent));
629	}
630	if(finallyBlock.size())
631	out.append(nl).append("finally ").append(CScriptToken::getParsableString(finallyBlock, IndentString, Indent));
632	return out;
633	}
634
635
636	//////////////////////////////////////////////////////////////////////////
637	// CScriptTokenDataFnc
638	//////////////////////////////////////////////////////////////////////////
639
640	string CScriptTokenDataFnc::getArgumentsString()
641	{
642	ostringstream destination;
643	destination << "(";
644	if(arguments.size()) {
645	const char *comma = "";
646	for(TOKEN_VECT_it argument=arguments.begin(); argument!=arguments.end(); ++argument, comma=", ") {
647	if(argument->token == LEX_ID)
648	destination << comma << argument->String();
649	else {
650	vector<bool> isObject(1, false);
651	for(DESTRUCTURING_VARS_it it=argument->DestructuringVar().vars.begin(); it!=argument->DestructuringVar().vars.end(); ++it) {
652	if(it->second == "}" \|\| it->second == "]") {
653	destination << it->second;
654	isObject.pop_back();
655	} else {
656	destination << comma;
657	if(it->second == "[" \|\| it->second == "{") {
658	comma = "";
659	if(isObject.back() && it->first.length())
660	destination << getIDString(it->first) << ":";
661	destination << it->second;
662	isObject.push_back(it->second == "{");
663	} else {
664	comma = ", ";
665	if(it->second.empty())
666	continue; // skip empty entries
667	if(isObject.back() && it->first!=it->second)
668	destination << getIDString(it->first) << ":";
669	destination << it->second;
670	}
671	}
672	}
673	}
674	}
675	}
676	destination << ") ";
677	return destination.str();
678	}
679
680
681	//////////////////////////////////////////////////////////////////////////
682	// CScriptTokenDataDestructuringVar
683	//////////////////////////////////////////////////////////////////////////
684
685	void CScriptTokenDataDestructuringVar::getVarNames(STRING_VECTOR_t Names) {
686	for(DESTRUCTURING_VARS_it it = vars.begin(); it != vars.end(); ++it) {
687	if(it->second.size() && it->second.find_first_of("{[]}") == string::npos)
688	Names.push_back(it->second);
689	}
690	}
691
692	std::string CScriptTokenDataDestructuringVar::getParsableString()
693	{
694	string out;
695	const char *comma = "";
696	vector<bool> isObject(1, false);
697	for(DESTRUCTURING_VARS_it it=vars.begin(); it!=vars.end(); ++it) {
698	if(it->second == "}" \|\| it->second == "]") {
699	out.append(it->second);
700	isObject.pop_back();
701	} else {
702	out.append(comma);
703	if(it->second == "[" \|\| it->second == "{") {
704	comma = "";
705	if(isObject.back() && it->first.length())
706	out.append(getIDString(it->first)).append(":");
707	out.append(it->second);
708	isObject.push_back(it->second == "{");
709	} else {
710	comma = ", ";
711	if(it->second.empty())
712	continue; // skip empty entries
713	if(isObject.back() && it->first!=it->second)
714	out.append(getIDString(it->first)).append(":");
715	out.append(it->second);
716	}
717	}
718	}
719	return out;
720	}
721
722
723	//////////////////////////////////////////////////////////////////////////
724	// CScriptTokenDataObjectLiteral
725	//////////////////////////////////////////////////////////////////////////
726
727	void CScriptTokenDataObjectLiteral::setMode(bool Destructuring) {
728	structuring = !(destructuring = Destructuring);
729	for(vector<ELEMENT>::iterator it=elements.begin(); it!=elements.end(); ++it) {
730	if(it->value.size() && it->value.front().token == LEX_T_OBJECT_LITERAL) {
731	CScriptTokenDataObjectLiteral& e = it->value.front().Object();
732	if(e.destructuring && e.structuring)
733	e.setMode(Destructuring);
734	}
735	}
736	}
737
738	string CScriptTokenDataObjectLiteral::getParsableString()
739	{
740	string out = type == OBJECT ? "{ " : "[ ";
741	const char *comma = "";
742	for(vector<ELEMENT>::iterator it=elements.begin(); it!=elements.end(); ++it) {
743	out.append(comma); comma=", ";
744	if(it->value.empty()) continue;
745	if(type == OBJECT)
746	out.append(getIDString(it->id)).append(" : ");
747	out.append(CScriptToken::getParsableString(it->value));
748	}
749	out.append(type == OBJECT ? " }" : " ]");
750	return out;
751	}
752
753
754	//////////////////////////////////////////////////////////////////////////
755	// CScriptToken
756	//////////////////////////////////////////////////////////////////////////
757
758	typedef struct { int id; const char *str; bool need_space; } token2str_t;
759	static token2str_t reserved_words_begin[] ={
760	// reserved words
761	{ LEX_R_IF, "if", true },
762	{ LEX_R_ELSE, "else", true },
763	{ LEX_R_DO, "do", true },
764	{ LEX_R_WHILE, "while", true },
765	{ LEX_R_FOR, "for", true },
766	{ LEX_R_IN, "in", true },
767	{ LEX_R_BREAK, "break", true },
768	{ LEX_R_CONTINUE, "continue", true },
769	{ LEX_R_FUNCTION, "function", true },
770	{ LEX_R_RETURN, "return", true },
771	{ LEX_R_VAR, "var", true },
772	{ LEX_R_LET, "let", true },
773	{ LEX_R_CONST, "const", true },
774	{ LEX_R_WITH, "with", true },
775	{ LEX_R_TRUE, "true", true },
776	{ LEX_R_FALSE, "false", true },
777	{ LEX_R_NULL, "null", true },
778	{ LEX_R_NEW, "new", true },
779	{ LEX_R_TRY, "try", true },
780	{ LEX_R_CATCH, "catch", true },
781	{ LEX_R_FINALLY, "finally", true },
782	{ LEX_R_THROW, "throw", true },
783	{ LEX_R_TYPEOF, "typeof", true },
784	{ LEX_R_VOID, "void", true },
785	{ LEX_R_DELETE, "delete", true },
786	{ LEX_R_INSTANCEOF, "instanceof", true },
787	{ LEX_R_SWITCH, "switch", true },
788	{ LEX_R_CASE, "case", true },
789	{ LEX_R_DEFAULT, "default", true },
790	};
791	#define ARRAY_LENGTH(array) (sizeof(array)/sizeof(array[0]))
792	#define ARRAY_END(array) (&array[ARRAY_LENGTH(array)])
793	static token2str_t *reserved_words_end = ARRAY_END(reserved_words_begin);//&reserved_words_begin[ARRAY_LENGTH(reserved_words_begin)];
794	static token2str_t *str2reserved_begin[sizeof(reserved_words_begin)/sizeof(reserved_words_begin[0])];
795	static token2str_t **str2reserved_end = &str2reserved_begin[sizeof(str2reserved_begin)/sizeof(str2reserved_begin[0])];
796	static token2str_t tokens2str_begin[] = {
797	{ LEX_EOF, "EOF", false },
798	{ LEX_ID, "ID", true },
799	{ LEX_INT, "INT", true },
800	{ LEX_FLOAT, "FLOAT", true },
801	{ LEX_STR, "STRING", true },
802	{ LEX_REGEXP, "REGEXP", true },
803	{ LEX_EQUAL, "==", false },
804	{ LEX_TYPEEQUAL, "===", false },
805	{ LEX_NEQUAL, "!=", false },
806	{ LEX_NTYPEEQUAL, "!==", false },
807	{ LEX_LEQUAL, "<=", false },
808	{ LEX_LSHIFT, "<<", false },
809	{ LEX_LSHIFTEQUAL, "<<=", false },
810	{ LEX_GEQUAL, ">=", false },
811	{ LEX_RSHIFT, ">>", false },
812	{ LEX_RSHIFTEQUAL, ">>=", false },
813	{ LEX_RSHIFTU, ">>>", false },
814	{ LEX_RSHIFTUEQUAL, ">>>=", false },
815	{ LEX_PLUSEQUAL, "+=", false },
816	{ LEX_MINUSEQUAL, "-=", false },
817	{ LEX_PLUSPLUS, "++", false },
818	{ LEX_MINUSMINUS, "--", false },
819	{ LEX_ANDEQUAL, "&=", false },
820	{ LEX_ANDAND, "&&", false },
821	{ LEX_OREQUAL, "\|=", false },
822	{ LEX_OROR, "\|\|", false },
823	{ LEX_XOREQUAL, "^=", false },
824	{ LEX_ASTERISKEQUAL, "*=", false },
825	{ LEX_SLASHEQUAL, "/=", false },
826	{ LEX_PERCENTEQUAL, "%=", false },
827	// special tokens
828	{ LEX_T_OF, "of", true },
829	{ LEX_T_FUNCTION_OPERATOR, "function", true },
830	{ LEX_T_GET, "get", true },
831	{ LEX_T_SET, "set", true },
832	{ LEX_T_EXCEPTION_VAR, "LEX_T_EXCEPTION_VAR", false },
833	{ LEX_T_SKIP, "LEX_SKIP", false },
834	{ LEX_T_DUMMY_LABEL, "LABEL", true },
835	{ LEX_T_LABEL, "LABEL", true },
836	{ LEX_T_LOOP, "LEX_LOOP", true },
837	{ LEX_T_FOR_IN, "LEX_FOR_IN", true },
838	{ LEX_T_FORWARD, "LEX_T_FORWARD", false },
839	{ LEX_T_OBJECT_LITERAL, "LEX_OBJECT_LITERAL", false },
840	{ LEX_T_DESTRUCTURING_VAR, "Destructuring Var", false },
841	};
842	static token2str_t *tokens2str_end = &tokens2str_begin[sizeof(tokens2str_begin)/sizeof(tokens2str_begin[0])];
843	struct token2str_cmp_t {
844	bool operator()(const token2str_t &lhs, const token2str_t &rhs) {
845	return lhs.id < rhs.id;
846	}
847	bool operator()(const token2str_t &lhs, int rhs) {
848	return lhs.id < rhs;
849	}
850	bool operator()(const token2str_t lhs, const token2str_t rhs) {
851	return strcmp(lhs->str, rhs->str)<0;
852	}
853	bool operator()(const token2str_t lhs, const char rhs) {
854	return strcmp(lhs->str, rhs)<0;
855	}
856	};
857	static bool tokens2str_sort() {
858	// printf("tokens2str_sort called\n");
859	sort(tokens2str_begin, tokens2str_end, token2str_cmp_t());
860	sort(reserved_words_begin, reserved_words_end, token2str_cmp_t());
861	for(unsigned int i=0; i<ARRAY_LENGTH(str2reserved_begin); i++)
862	str2reserved_begin[i] = &reserved_words_begin[i];
863	sort(str2reserved_begin, str2reserved_end, token2str_cmp_t());
864	return true;
865	}
866	static bool tokens2str_sorted = tokens2str_sort();
867
868	CScriptToken::CScriptToken(CScriptLex *l, int Match, int Alternate) : line(l->currentLine()), column(l->currentColumn()), token(l->tk), intData(0)
869	{
870	if(token == LEX_INT \|\| LEX_TOKEN_DATA_FLOAT(token)) {
871	CNumber number(l->tkStr);
872	if(number.isInfinity())
873	token=LEX_ID, (tokenData=new CScriptTokenDataString("Infinity"))->ref();
874	else if(number.isInt32())
875	token=LEX_INT, intData=number.toInt32();
876	else
877	token=LEX_FLOAT, floatData=new double(number.toDouble());
878	} else if(LEX_TOKEN_DATA_STRING(token))
879	(tokenData = new CScriptTokenDataString(l->tkStr))->ref();
880	else if(LEX_TOKEN_DATA_FUNCTION(token))
881	(tokenData = new CScriptTokenDataFnc)->ref();
882	else if (LEX_TOKEN_DATA_LOOP(token))
883	(tokenData = new CScriptTokenDataLoop)->ref();
884	else if (LEX_TOKEN_DATA_TRY(token))
885	(tokenData = new CScriptTokenDataTry)->ref();
886	if(Match>=0)
887	l->match(Match, Alternate);
888	else
889	l->match(l->tk);
890	#ifdef _DEBUG
891	token_str = getTokenStr(token);
892	#endif
893	}
894	CScriptToken::CScriptToken(uint16_t Tk, int IntData) : line(0), column(0), token(Tk), intData(0) {
895	if (LEX_TOKEN_DATA_SIMPLE(token))
896	intData = IntData;
897	else if (LEX_TOKEN_DATA_FUNCTION(token))
898	(tokenData = new CScriptTokenDataFnc)->ref();
899	else if (LEX_TOKEN_DATA_DESTRUCTURING_VAR(token))
900	(tokenData = new CScriptTokenDataDestructuringVar)->ref();
901	else if (LEX_TOKEN_DATA_OBJECT_LITERAL(token))
902	(tokenData = new CScriptTokenDataObjectLiteral)->ref();
903	else if (LEX_TOKEN_DATA_LOOP(token))
904	(tokenData = new CScriptTokenDataLoop)->ref();
905	else if (LEX_TOKEN_DATA_TRY(token))
906	(tokenData = new CScriptTokenDataTry)->ref();
907	else if (LEX_TOKEN_DATA_FORWARDER(token))
908	(tokenData = new CScriptTokenDataForwards)->ref();
909	else
910	ASSERT(0);
911	#ifdef _DEBUG
912	token_str = getTokenStr(token);
913	#endif
914	}
915
916	CScriptToken::CScriptToken(uint16_t Tk, const string &TkStr) : line(0), column(0), token(Tk), intData(0) {
917	ASSERT(LEX_TOKEN_DATA_STRING(token));
918	(tokenData = new CScriptTokenDataString(TkStr))->ref();
919	#ifdef _DEBUG
920	token_str = getTokenStr(token);
921	#endif
922	}
923
924	CScriptToken &CScriptToken::operator =(const CScriptToken &Copy)
925	{
926	if(this == &Copy) return *this;
927	clear();
928	#ifdef _DEBUG
929	token_str = Copy.token_str;
930	#endif
931	line = Copy.line;
932	column = Copy.column;
933	token = Copy.token;
934	if(LEX_TOKEN_DATA_FLOAT(token))
935	floatData = new double(*Copy.floatData);
936	else if(!LEX_TOKEN_DATA_SIMPLE(token))
937	(tokenData = Copy.tokenData)->ref();
938	else
939	intData = Copy.intData;
940	return *this;
941	}
942	string CScriptToken::getParsableString(TOKEN_VECT &Tokens, const string &IndentString, const string &Indent) {
943	return getParsableString(Tokens.begin(), Tokens.end(), IndentString, Indent);
944	}
945	string CScriptToken::getParsableString(TOKEN_VECT_it Begin, TOKEN_VECT_it End, const string &IndentString, const string &Indent) {
946	ostringstream destination;
947	string nl = Indent.size() ? "\n" : " ";
948	string my_indentString = IndentString;
949	bool add_nl=false, block_start=false, need_space=false;
950	int skip_collon = 0;
951
952	for(TOKEN_VECT_it it=Begin; it != End; ++it) {
953	string OutString;
954	if(add_nl) OutString.append(nl).append(my_indentString);
955	bool old_block_start = block_start;
956	bool old_need_space = need_space;
957	add_nl = block_start = need_space =false;
958	if(it->token == LEX_STR)
959	OutString.append(getJSString(it->String())), need_space=true;
960	else if(LEX_TOKEN_DATA_STRING(it->token))
961	OutString.append(it->String()), need_space=true;
962	else if(LEX_TOKEN_DATA_FLOAT(it->token))
963	OutString.append(CNumber(it->Float()).toString()), need_space=true;
964	else if(it->token == LEX_INT)
965	OutString.append(CNumber(it->Int()).toString()), need_space=true;
966	else if(LEX_TOKEN_DATA_FUNCTION(it->token)) {
967	OutString.append("function ");
968	if(it->Fnc().name.size() )
969	OutString.append(it->Fnc().name);
970	OutString.append(it->Fnc().getArgumentsString());
971	OutString.append(getParsableString(it->Fnc().body, my_indentString, Indent));
972	if(it->Fnc().body.front().token != '{') {
973	OutString.append(";");
974	}
975	} else if(LEX_TOKEN_DATA_LOOP(it->token)) {
976	OutString.append(it->Loop().getParsableString(my_indentString, Indent));
977	} else if(LEX_TOKEN_DATA_TRY(it->token)) {
978	OutString.append(it->Try().getParsableString(my_indentString, Indent));
979	} else if(LEX_TOKEN_DATA_DESTRUCTURING_VAR(it->token)) {
980	OutString.append(it->DestructuringVar().getParsableString());
981	} else if(LEX_TOKEN_DATA_OBJECT_LITERAL(it->token)) {
982	OutString.append(it->Object().getParsableString());
983	} else if(it->token == '{') {
984	OutString.append("{");
985	my_indentString.append(Indent);
986	add_nl = block_start = true;
987	} else if(it->token == '}') {
988	my_indentString.resize(my_indentString.size() - min(my_indentString.size(),Indent.size()));
989	if(old_block_start)
990	OutString = "}";
991	else
992	OutString = nl + my_indentString + "}";
993	add_nl = true;
994	} else if(it->token == LEX_T_SKIP) {
995	// ignore SKIP-Token
996	} else if(it->token == LEX_T_FORWARD) {
997	// ignore Forwarder-Token
998	} else if(it->token == LEX_R_FOR) {
999	OutString.append(CScriptToken::getTokenStr(it->token));
1000	skip_collon=2;
1001	} else {
1002	OutString.append(CScriptToken::getTokenStr(it->token,&need_space));
1003	if(it->token==';') {
1004	if(skip_collon) { --skip_collon; }
1005	else add_nl=true;
1006	}
1007	}
1008	if(need_space && old_need_space) destination << " ";
1009	destination << OutString;
1010	}
1011	return destination.str();
1012
1013	}
1014
1015	void CScriptToken::clear()
1016	{
1017	if(LEX_TOKEN_DATA_FLOAT(token))
1018	delete floatData;
1019	else if(!LEX_TOKEN_DATA_SIMPLE(token))
1020	tokenData->unref();
1021	token = 0;
1022	}
1023	string CScriptToken::getTokenStr( int token, bool need_space/=0*/ )
1024	{
1025	if(!tokens2str_sorted) tokens2str_sorted=tokens2str_sort();
1026	token2str_t *found = lower_bound(reserved_words_begin, reserved_words_end, token, token2str_cmp_t());
1027	if(found != reserved_words_end && found->id==token) {
1028	if(need_space) *need_space=found->need_space;
1029	return found->str;
1030	}
1031	found = lower_bound(tokens2str_begin, tokens2str_end, token, token2str_cmp_t());
1032	if(found != tokens2str_end && found->id==token) {
1033	if(need_space) *need_space=found->need_space;
1034	return found->str;
1035	}
1036	if(need_space) *need_space=false;
1037
1038	if (token>32 && token<128) {
1039	char buf[2] = " ";
1040	buf[0] = (char)token;
1041	return buf;
1042	}
1043
1044	ostringstream msg;
1045	msg << "?[" << token << "]";
1046	return msg.str();
1047	}
1048	const char *CScriptToken::isReservedWord(int Token) {
1049	if(!tokens2str_sorted) tokens2str_sorted=tokens2str_sort();
1050	token2str_t *found = lower_bound(reserved_words_begin, reserved_words_end, Token, token2str_cmp_t());
1051	if(found != reserved_words_end && found->id==Token) {
1052	return found->str;
1053	}
1054	return 0;
1055	}
1056	int CScriptToken::isReservedWord(const string &Str) {
1057	const char *str = Str.c_str();
1058	if(!tokens2str_sorted) tokens2str_sorted=tokens2str_sort();
1059	token2str_t **found = lower_bound(str2reserved_begin, str2reserved_end, str, token2str_cmp_t());
1060	if(found != str2reserved_end && strcmp((*found)->str, str)==0) {
1061	return (*found)->id;
1062	}
1063	return LEX_ID;
1064	}
1065
1066
1067	//////////////////////////////////////////////////////////////////////////
1068	/// CScriptTokenizer
1069	//////////////////////////////////////////////////////////////////////////
1070
1071	CScriptTokenizer::CScriptTokenizer() : l(0), prevPos(&tokens) {
1072	}
1073	CScriptTokenizer::CScriptTokenizer(CScriptLex &Lexer) : l(0), prevPos(&tokens) {
1074	tokenizeCode(Lexer);
1075	}
1076	CScriptTokenizer::CScriptTokenizer(const char *Code, const string &File, int Line, int Column) : l(0), prevPos(&tokens) {
1077	CScriptLex lexer(Code, File, Line, Column);
1078	tokenizeCode(lexer);
1079	}
1080	void CScriptTokenizer::tokenizeCode(CScriptLex &Lexer) {
1081	try {
1082	l=&Lexer;
1083	tokens.clear();
1084	tokenScopeStack.clear();
1085	ScriptTokenState state;
1086	pushForwarder(state);
1087	if(l->tk == '§') { // special-Token at Start means the code begins not at Statement-Level
1088	l->match('§');
1089	tokenizeLiteral(state, 0);
1090	} else do {
1091	tokenizeStatement(state, 0);
1092	} while (l->tk!=LEX_EOF);
1093	pushToken(state.Tokens, LEX_EOF); // add LEX_EOF-Token
1094	removeEmptyForwarder(state);
1095	// TOKEN_VECT(tokens).swap(tokens);// tokens.shrink_to_fit();
1096	tokens.swap(state.Tokens);
1097	pushTokenScope(tokens);
1098	currentFile = l->currentFile;
1099	tk = getToken().token;
1100	} catch (...) {
1101	l=0;
1102	throw;
1103	}
1104	}
1105
1106	void CScriptTokenizer::getNextToken() {
1107	prevPos = tokenScopeStack.back();
1108	if(getToken().token == LEX_EOF)
1109	return;
1110	ScriptTokenPosition &_TokenPos = tokenScopeStack.back();
1111	_TokenPos.pos++;
1112	if(_TokenPos.pos == _TokenPos.tokens->end())
1113	tokenScopeStack.pop_back();
1114	// ScriptTokenPosition &TokenPos = tokenScopeStack.back();
1115	tk = getToken().token;
1116	}
1117
1118
1119
1120	void CScriptTokenizer::match(int ExpectedToken, int AlternateToken/=-1/) {
1121	if(check(ExpectedToken, AlternateToken))
1122	getNextToken();
1123	}
1124	bool CScriptTokenizer::check(int ExpectedToken, int AlternateToken/=-1/) {
1125	int currentToken = getToken().token;
1126	if (ExpectedToken==';' && (currentToken==LEX_EOF \|\| currentToken=='}')) return false; // ignore last missing ';'
1127	if (currentToken!=ExpectedToken && currentToken!=AlternateToken) {
1128	ostringstream errorString;
1129	if(ExpectedToken == LEX_EOF)
1130	errorString << "Got unexpected " << CScriptToken::getTokenStr(currentToken);
1131	else {
1132	errorString << "Got '" << CScriptToken::getTokenStr(currentToken) << "' expected '" << CScriptToken::getTokenStr(ExpectedToken) << "'";
1133	if(AlternateToken!=-1) errorString << " or '" << CScriptToken::getTokenStr(AlternateToken) << "'";
1134	}
1135	throw new CScriptException(SyntaxError, errorString.str(), currentFile, currentLine(), currentColumn());
1136	}
1137	return true;
1138	}
1139	void CScriptTokenizer::pushTokenScope(TOKEN_VECT &Tokens) {
1140	tokenScopeStack.push_back(ScriptTokenPosition(&Tokens));
1141	tk = getToken().token;
1142	}
1143
1144	void CScriptTokenizer::setPos(ScriptTokenPosition &TokenPos) {
1145	ASSERT( TokenPos.tokens == tokenScopeStack.back().tokens);
1146	tokenScopeStack.back().pos = TokenPos.pos;
1147	tk = getToken().token;
1148	}
1149	void CScriptTokenizer::skip(int Tokens) {
1150	ASSERT(tokenScopeStack.back().tokens->end()-tokenScopeStack.back().pos-Tokens>=0);
1151	tokenScopeStack.back().pos+=Tokens-1;
1152	getNextToken();
1153	}
1154
1155	static inline void setTokenSkip(CScriptTokenizer::ScriptTokenState &State) {
1156	int tokenBeginIdx = State.Marks.back();
1157	State.Marks.pop_back();
1158	State.Tokens[tokenBeginIdx].Int() = State.Tokens.size()-tokenBeginIdx;
1159	}
1160
1161	enum {
1162	TOKENIZE_FLAGS_canLabel = 1<<0,
1163	TOKENIZE_FLAGS_canBreak = 1<<1,
1164	TOKENIZE_FLAGS_canContinue = 1<<2,
1165	TOKENIZE_FLAGS_canReturn = 1<<3,
1166	TOKENIZE_FLAGS_asStatement = 1<<4,
1167	TOKENIZE_FLAGS_noIn = 1<<5,
1168	TOKENIZE_FLAGS_isAccessor = 1<<6,
1169	TOKENIZE_FLAGS_callForNew = 1<<7,
1170	TOKENIZE_FLAGS_noBlockStart = 1<<8,
1171	TOKENIZE_FLAGS_nestedObject = 1<<9,
1172	};
1173	void CScriptTokenizer::tokenizeTry(ScriptTokenState &State, int Flags) {
1174	l->match(LEX_R_TRY);
1175	CScriptToken TryToken(LEX_T_TRY);
1176	CScriptTokenDataTry &TryData = TryToken.Try();
1177	pushToken(State.Tokens, TryToken);
1178
1179	TOKEN_VECT mainTokens;
1180	State.Tokens.swap(mainTokens);
1181
1182	// try-block
1183	tokenizeBlock(State, Flags);
1184	State.Tokens.swap(TryData.tryBlock);
1185
1186	// catch-blocks
1187	l->check(LEX_R_CATCH, LEX_R_FINALLY);
1188	bool unconditionalCatch = false;
1189	while(l->tk == LEX_R_CATCH) {
1190	if(unconditionalCatch) throw new CScriptException(SyntaxError, "catch after unconditional catch", l->currentFile, l->currentLine(), l->currentColumn());
1191
1192	// vars & condition
1193	l->match(LEX_R_CATCH);
1194	l->match('(');
1195	TryData.catchBlocks.resize(TryData.catchBlocks.size()+1);
1196	CScriptTokenDataTry::CatchBlock &catchBlock = TryData.catchBlocks.back();
1197	pushForwarder(State, true);
1198	STRING_VECTOR_t vars;
1199	catchBlock.indentifiers = tokenizeVarIdentifier(&vars).DestructuringVar();
1200	State.Forwarders.back()->addLets(vars);
1201	if(l->tk == LEX_R_IF) {
1202	l->match(LEX_R_IF);
1203	tokenizeExpression(State, Flags);
1204	} else
1205	unconditionalCatch = true;
1206	State.Tokens.swap(catchBlock.condition);
1207	l->match(')');
1208
1209	// catch-block
1210	tokenizeBlock(State, Flags \| TOKENIZE_FLAGS_noBlockStart);
1211	State.Tokens.swap(catchBlock.block);
1212	State.Forwarders.pop_back();
1213	}
1214	// finally-block
1215	if(l->tk == LEX_R_FINALLY) {
1216	l->match(LEX_R_FINALLY);
1217	tokenizeBlock(State, Flags);
1218	State.Tokens.swap(TryData.finallyBlock);
1219	}
1220	State.Tokens.swap(mainTokens);
1221	}
1222	void CScriptTokenizer::tokenizeSwitch(ScriptTokenState &State, int Flags) {
1223
1224	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push tokenBeginIdx
1225	pushToken(State.Tokens, '(');
1226	tokenizeExpression(State, Flags);
1227	pushToken(State.Tokens, ')');
1228
1229	State.Marks.push_back(pushToken(State.Tokens, '{')); // push Token & push blockBeginIdx
1230	pushForwarder(State);
1231
1232
1233	vector<int>::size_type MarksSize = State.Marks.size();
1234	Flags \|= TOKENIZE_FLAGS_canBreak;
1235	for(bool hasDefault=false;;) {
1236	if( l->tk == LEX_R_CASE \|\| l->tk == LEX_R_DEFAULT) {
1237	if(l->tk == LEX_R_CASE) {
1238	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push caseBeginIdx
1239	State.Marks.push_back(pushToken(State.Tokens,CScriptToken(LEX_T_SKIP))); // skipper to skip case-expression
1240	tokenizeExpression(State, Flags);
1241	setTokenSkip(State);
1242	} else { // default
1243	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push caseBeginIdx
1244	if(hasDefault) throw new CScriptException(SyntaxError, "more than one switch default", l->currentFile, l->currentLine(), l->currentColumn());
1245	hasDefault = true;
1246	}
1247
1248	State.Marks.push_back(pushToken(State.Tokens, ':'));
1249	while(l->tk != '}' && l->tk != LEX_R_CASE && l->tk != LEX_R_DEFAULT && l->tk != LEX_EOF )
1250	tokenizeStatement(State, Flags);
1251	setTokenSkip(State);
1252	} else if(l->tk == '}')
1253	break;
1254	else
1255	throw new CScriptException(SyntaxError, "invalid switch statement", l->currentFile, l->currentLine(), l->currentColumn());
1256	}
1257	while(MarksSize < State.Marks.size()) setTokenSkip(State);
1258	removeEmptyForwarder(State); // remove Forwarder if empty
1259	pushToken(State.Tokens, '}');
1260	setTokenSkip(State); // switch-block
1261	setTokenSkip(State); // switch-statement
1262	}
1263	void CScriptTokenizer::tokenizeWith(ScriptTokenState &State, int Flags) {
1264	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push tokenBeginIdx
1265
1266	pushToken(State.Tokens, '(');
1267	tokenizeExpression(State, Flags);
1268	pushToken(State.Tokens, ')');
1269	tokenizeStatementNoLet(State, Flags);
1270
1271	setTokenSkip(State);
1272	}
1273
1274	static inline uint32_t GetLoopLabels(CScriptTokenizer::ScriptTokenState &State, CScriptTokenDataLoop &LoopData) {
1275	uint32_t label_count = 0;
1276	if(State.Tokens.size()>=2) {
1277	for(TOKEN_VECT::reverse_iterator it = State.Tokens.rbegin(); it!=State.Tokens.rend(); ++it) {
1278	if(it->token == ':' && (++it)->token == LEX_T_LABEL) {
1279	++label_count;
1280	LoopData.labels.push_back(it->String());
1281	State.LoopLabels.push_back(it->String());
1282	it->token = LEX_T_DUMMY_LABEL;
1283	} else
1284	break;
1285	}
1286	}
1287	return label_count;
1288	}
1289	static inline void PopLoopLabels(uint32_t label_count, STRING_VECTOR_t &LoopLabels) {
1290	ASSERT(label_count <= LoopLabels.size());
1291	LoopLabels.resize(LoopLabels.size()-label_count);
1292	}
1293	void CScriptTokenizer::tokenizeWhileAndDo(ScriptTokenState &State, int Flags) {
1294
1295	bool do_while = l->tk==LEX_R_DO;
1296
1297	CScriptToken LoopToken(LEX_T_LOOP);
1298	CScriptTokenDataLoop &LoopData = LoopToken.Loop();
1299	LoopData.type = do_while ? CScriptTokenDataLoop::DO : CScriptTokenDataLoop::WHILE;
1300
1301	// get loop-labels
1302	uint32_t label_count = GetLoopLabels(State, LoopData);
1303
1304	l->match(l->tk); // match while or do
1305
1306	pushToken(State.Tokens, LoopToken);
1307
1308	TOKEN_VECT mainTokens;
1309	State.Tokens.swap(mainTokens);
1310
1311	if(!do_while) {
1312	l->match('(');
1313	tokenizeExpression(State, Flags);
1314	State.Tokens.swap(LoopData.condition);
1315	l->match(')');
1316	}
1317	tokenizeStatementNoLet(State, Flags \| TOKENIZE_FLAGS_canBreak \| TOKENIZE_FLAGS_canContinue);
1318	State.Tokens.swap(LoopData.body);
1319	if(do_while) {
1320	l->match(LEX_R_WHILE);
1321	l->match('(');
1322	tokenizeExpression(State, Flags);
1323	State.Tokens.swap(LoopData.condition);
1324	l->match(')');
1325	l->match(';');
1326	}
1327	State.Tokens.swap(mainTokens);
1328	PopLoopLabels(label_count, State.LoopLabels);
1329	}
1330
1331	void CScriptTokenizer::tokenizeIf(ScriptTokenState &State, int Flags) {
1332
1333	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push tokenBeginIdx
1334
1335	pushToken(State.Tokens, '(');
1336	tokenizeExpression(State, Flags);
1337	pushToken(State.Tokens, ')');
1338	State.Marks.push_back(pushToken(State.Tokens, CScriptToken(LEX_T_SKIP))); // push skip & skiperBeginIdx
1339	tokenizeStatementNoLet(State, Flags);
1340
1341	setTokenSkip(State);
1342
1343	if(l->tk == LEX_R_ELSE) {
1344	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push tokenBeginIdx
1345	tokenizeStatementNoLet(State, Flags);
1346	setTokenSkip(State);
1347	}
1348
1349	setTokenSkip(State);
1350	}
1351
1352	void CScriptTokenizer::tokenizeFor(ScriptTokenState &State, int Flags) {
1353	bool for_in=false, for_of=false, for_each_in=false;
1354	CScriptToken LoopToken(LEX_T_LOOP);
1355	CScriptTokenDataLoop &LoopData = LoopToken.Loop();
1356
1357	// get loop-labels
1358	uint32_t label_count = GetLoopLabels(State, LoopData);
1359
1360	l->match(LEX_R_FOR);
1361	if((for_in = for_each_in = (l->tk == LEX_ID && l->tkStr == "each")))
1362	l->match(LEX_ID); // match "each"
1363
1364	pushToken(State.Tokens, LoopToken);
1365
1366	l->match('(');
1367	TOKEN_VECT mainTokens;
1368	State.Tokens.swap(mainTokens);
1369
1370	bool haveLetScope = false;
1371
1372	if(l->tk == LEX_R_VAR \|\| l->tk == LEX_R_LET) {
1373	if(l->tk == LEX_R_VAR)
1374	tokenizeVarNoConst(State, Flags \| TOKENIZE_FLAGS_noIn);
1375	else { //if(l->tk == LEX_R_LET)
1376	haveLetScope = true;
1377	pushForwarder(State, true); // no clean up empty tokenizer
1378	tokenizeLet(State, Flags \| TOKENIZE_FLAGS_noIn \| TOKENIZE_FLAGS_asStatement);
1379	}
1380	} else if(l->tk!=';') {
1381	tokenizeExpression(State, Flags \| TOKENIZE_FLAGS_noIn);
1382	}
1383	if((for_in=(l->tk==LEX_R_IN \|\| (l->tk==LEX_ID && l->tkStr=="of")))) {
1384	if(!State.LeftHand)
1385	throw new CScriptException(ReferenceError, "invalid for/in left-hand side", l->currentFile, l->currentLine(), l->currentColumn());
1386	if(l->tk==LEX_ID && l->tkStr=="of") l->tk = LEX_T_OF; // fake token
1387	if((for_of = (!for_each_in && l->tk==LEX_T_OF))) {
1388	l->match(LEX_T_OF);
1389	LoopData.type = CScriptTokenDataLoop::FOR_OF;
1390	} else {
1391	l->match(LEX_R_IN);
1392	LoopData.type = for_each_in ? CScriptTokenDataLoop::FOR_EACH : CScriptTokenDataLoop::FOR_IN;
1393	}
1394	State.Tokens.swap(LoopData.condition);
1395
1396	if(LoopData.condition.front().token == LEX_T_FORWARD) {
1397	LoopData.init.push_back(LoopData.condition.front());
1398	LoopData.condition.erase(LoopData.condition.begin());
1399	}
1400	mainTokens.back().token = LEX_T_FOR_IN;
1401	} else {
1402	l->check(';'); // no automatic ;-injection
1403	pushToken(State.Tokens, ';');
1404	State.Tokens.swap(LoopData.init);
1405	if(l->tk != ';') tokenizeExpression(State, Flags);
1406	l->check(';'); // no automatic ;-injection
1407	l->match(';'); // no automatic ;-injection
1408	State.Tokens.swap(LoopData.condition);
1409	}
1410
1411	if(for_in \|\| l->tk != ')') tokenizeExpression(State, Flags);
1412	l->match(')');
1413	State.Tokens.swap(LoopData.iter);
1414	Flags = TOKENIZE_FLAGS_canBreak \| TOKENIZE_FLAGS_canContinue;
1415	if(haveLetScope) Flags \|= TOKENIZE_FLAGS_noBlockStart;
1416	tokenizeStatementNoLet(State, Flags);
1417	if(haveLetScope) State.Forwarders.pop_back();
1418
1419	State.Tokens.swap(LoopData.body);
1420	State.Tokens.swap(mainTokens);
1421	if(for_in) {
1422	LoopData.condition.push_back('=');
1423	LoopData.condition.push_back(LEX_T_EXCEPTION_VAR);
1424	LoopData.condition.push_back('.');
1425	LoopData.condition.push_back(CScriptToken(LEX_ID, "next"));
1426	LoopData.condition.push_back('(');
1427	LoopData.condition.push_back(')');
1428	LoopData.condition.push_back(';');
1429	}
1430	PopLoopLabels(label_count, State.LoopLabels);
1431	}
1432
1433	static void tokenizeVarIdentifierDestructuring( CScriptLex Lexer, DESTRUCTURING_VARS_t &Vars, const std::string &Path, STRING_VECTOR_t VarNames );
1434	static void tokenizeVarIdentifierDestructuringObject(CScriptLex Lexer, DESTRUCTURING_VARS_t &Vars, STRING_VECTOR_t VarNames) {
1435	Lexer->match('{');
1436	while(Lexer->tk != '}') {
1437	CScriptLex::POS prev_pos = Lexer->pos;
1438	string Path = Lexer->tkStr;
1439	Lexer->match(LEX_ID, LEX_STR);
1440	if(Lexer->tk == ':') {
1441	Lexer->match(':');
1442	tokenizeVarIdentifierDestructuring(Lexer, Vars, Path, VarNames);
1443	} else {
1444	Lexer->reset(prev_pos);
1445	if(VarNames) VarNames->push_back(Lexer->tkStr);
1446	Vars.push_back(DESTRUCTURING_VAR_t(Lexer->tkStr, Lexer->tkStr));
1447	Lexer->match(LEX_ID);
1448	}
1449	if (Lexer->tk!='}') Lexer->match(',', '}');
1450	}
1451	Lexer->match('}');
1452	}
1453	static void tokenizeVarIdentifierDestructuringArray(CScriptLex Lexer, DESTRUCTURING_VARS_t &Vars, STRING_VECTOR_t VarNames) {
1454	int idx = 0;
1455	Lexer->match('[');
1456	while(Lexer->tk != ']') {
1457	if(Lexer->tk == ',')
1458	Vars.push_back(DESTRUCTURING_VAR_t("", "")); // empty
1459	else
1460	tokenizeVarIdentifierDestructuring(Lexer, Vars, int2string(idx), VarNames);
1461	++idx;
1462	if (Lexer->tk!=']') Lexer->match(',',']');
1463	}
1464	Lexer->match(']');
1465	}
1466	static void tokenizeVarIdentifierDestructuring(CScriptLex Lexer, DESTRUCTURING_VARS_t &Vars, const std::string &Path, STRING_VECTOR_t VarNames ) {
1467	if(Lexer->tk == '[') {
1468	Vars.push_back(DESTRUCTURING_VAR_t(Path, "[")); // marks array begin
1469	tokenizeVarIdentifierDestructuringArray(Lexer, Vars, VarNames);
1470	Vars.push_back(DESTRUCTURING_VAR_t("", "]")); // marks array end
1471	} else if(Lexer->tk == '{') {
1472	Vars.push_back(DESTRUCTURING_VAR_t(Path, "{")); // marks object begin
1473	tokenizeVarIdentifierDestructuringObject(Lexer, Vars, VarNames);
1474	Vars.push_back(DESTRUCTURING_VAR_t("", "}")); // marks object end
1475	} else {
1476	if(VarNames) VarNames->push_back(Lexer->tkStr);
1477	Vars.push_back(DESTRUCTURING_VAR_t(Path, Lexer->tkStr));
1478	Lexer->match(LEX_ID);
1479	}
1480	}
1481	CScriptToken CScriptTokenizer::tokenizeVarIdentifier( STRING_VECTOR_t VarNames/=0/, bool NeedAssignment/=0/ ) {
1482	CScriptToken token(LEX_T_DESTRUCTURING_VAR);
1483	if(NeedAssignment) *NeedAssignment=(l->tk == '[' \|\| l->tk=='{');
1484	token.column = l->currentColumn();
1485	token.line = l->currentLine();
1486	tokenizeVarIdentifierDestructuring(l, token.DestructuringVar().vars, "", VarNames);
1487	return token;
1488	}
1489
1490	void CScriptTokenizer::tokenizeFunction(ScriptTokenState &State, int Flags, bool noLetDef/=false/) {
1491	bool forward = false;
1492	bool Statement = (Flags & TOKENIZE_FLAGS_asStatement) != 0;
1493	bool Accessor = (Flags & TOKENIZE_FLAGS_isAccessor) != 0;
1494
1495	int tk = l->tk;
1496	if(Accessor) {
1497	tk = State.Tokens.back().String()=="get"?LEX_T_GET:LEX_T_SET;
1498	State.Tokens.pop_back();
1499	} else {
1500	l->match(LEX_R_FUNCTION);
1501	if(!Statement) tk = LEX_T_FUNCTION_OPERATOR;
1502	}
1503	if(tk == LEX_R_FUNCTION) // only forward functions
1504	forward = !noLetDef && State.Forwarders.front() == State.Forwarders.back();
1505
1506	CScriptToken FncToken(tk);
1507	CScriptTokenDataFnc &FncData = FncToken.Fnc();
1508
1509	if(l->tk == LEX_ID \|\| Accessor) {
1510	FncData.name = l->tkStr;
1511	l->match(LEX_ID, LEX_STR);
1512	} else if(Statement)
1513	throw new CScriptException(SyntaxError, "Function statement requires a name.", l->currentFile, l->currentLine(), l->currentColumn());
1514	l->match('(');
1515	while(l->tk != ')') {
1516	FncData.arguments.push_back(tokenizeVarIdentifier());
1517	if (l->tk!=')') l->match(',',')');
1518	}
1519	// l->match(')');
1520	// to allow regexp at the beginning of a lambda-function fake last token
1521	l->tk = '{';
1522	l->match('{');
1523	FncData.file = l->currentFile;
1524	FncData.line = l->currentLine();
1525
1526	ScriptTokenState functionState;
1527	if(l->tk == '{' \|\| tk==LEX_T_GET \|\| tk==LEX_T_SET)
1528	tokenizeBlock(functionState, TOKENIZE_FLAGS_canReturn);
1529	else {
1530	tokenizeExpression(functionState, 0);
1531	l->match(';');
1532	}
1533	functionState.Tokens.swap(FncData.body);
1534	if(forward) {
1535	State.Forwarders.front()->functions.insert(FncToken);
1536	FncToken.token = LEX_T_FUNCTION_PLACEHOLDER;
1537	}
1538	State.Tokens.push_back(FncToken);
1539	}
1540
1541	void CScriptTokenizer::tokenizeLet(ScriptTokenState &State, int Flags, bool noLetDef/=false/) {
1542	bool Definition = (Flags & TOKENIZE_FLAGS_asStatement)!=0;
1543	bool noIN = (Flags & TOKENIZE_FLAGS_noIn)!=0;
1544	bool Statement = Definition & !noIN;
1545	bool Expression = !Definition;
1546	Flags &= ~(TOKENIZE_FLAGS_asStatement);
1547	if(!Definition) noIN=false, Flags &= ~TOKENIZE_FLAGS_noIn;
1548
1549	bool foundIN = false;
1550	bool leftHand = true;
1551	int currLine = l->currentLine(), currColumn = l->currentColumn();
1552
1553	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push BeginIdx
1554
1555	if(l->tk == '(' \|\| !Definition) { // no definition needs statement or expression
1556	leftHand = false;
1557	Expression = true;
1558	pushToken(State.Tokens, '(');
1559	pushForwarder(State);
1560	} else if(noLetDef)
1561	throw new CScriptException(SyntaxError, "let declaration not directly within block", l->currentFile, currLine, currColumn);
1562	STRING_VECTOR_t vars;
1563	for(;;) {
1564	bool needAssignment = false;
1565	State.Tokens.push_back(tokenizeVarIdentifier(&vars, &needAssignment));
1566	if(noIN && (foundIN=(l->tk==LEX_R_IN \|\| (l->tk==LEX_ID && l->tkStr=="of"))))
1567	break;
1568	if(needAssignment \|\| l->tk=='=') {
1569	leftHand = false;
1570	pushToken(State.Tokens, '=');
1571	tokenizeAssignment(State, Flags);
1572	if(noIN && (foundIN=(l->tk==LEX_R_IN \|\| (l->tk==LEX_ID && l->tkStr=="of"))))
1573	break;
1574	}
1575	if(l->tk==',') {
1576	leftHand = false;
1577	pushToken(State.Tokens);
1578	}
1579	else
1580	break;
1581	}
1582	if(Expression) {
1583	string redeclared = State.Forwarders.back()->addLets(vars);
1584	if(redeclared.size())
1585	throw new CScriptException(TypeError, "redeclaration of variable '"+redeclared+"'", l->currentFile, currLine, currColumn);
1586	if(!foundIN) {
1587	pushToken(State.Tokens, ')');
1588	if(Statement) {
1589	if(l->tk == '{') // no extra BlockStart by expression
1590	tokenizeBlock(State, Flags\|=TOKENIZE_FLAGS_noBlockStart);
1591	else
1592	tokenizeStatementNoLet(State, Flags);
1593	} else
1594	tokenizeAssignment(State, Flags);
1595	}
1596	// never remove Forwarder-token here -- popForwarder(Tokens, BlockStart, Marks);
1597	State.Forwarders.back()->vars_in_letscope.clear(); // only clear vars_in_letscope
1598	State.Marks.pop_back();
1599	} else {
1600	if(!noIN) pushToken(State.Tokens, ';');
1601
1602	string redeclared;
1603	if(State.Forwarders.size()<=1) {
1604	// Currently it is allowed in javascript, to redeclare "let"-declared vars
1605	// in root- or function-scopes. In this case, "let" handled like "var"
1606	// To prevent redeclaration in root- or function-scopes define PREVENT_REDECLARATION_IN_FUNCTION_SCOPES
1607	#ifdef PREVENT_REDECLARATION_IN_FUNCTION_SCOPES
1608	redeclared = State.Forwarders.front()->addLets(vars);
1609	#else
1610	State.Forwarders.front()->addVars(vars);
1611	#endif
1612	} else
1613	redeclared = State.Forwarders.back()->addLets(vars);
1614	if(redeclared.size())
1615	throw new CScriptException(TypeError, "redeclaration of variable '"+redeclared+"'", l->currentFile, currLine, currColumn);
1616	}
1617	setTokenSkip(State);
1618	if(leftHand) State.LeftHand = true;
1619	}
1620
1621	void CScriptTokenizer::tokenizeVarNoConst( ScriptTokenState &State, int Flags) {
1622	l->check(LEX_R_VAR);
1623	tokenizeVarAndConst(State, Flags);
1624	}
1625	void CScriptTokenizer::tokenizeVarAndConst( ScriptTokenState &State, int Flags) {
1626	bool noIN = (Flags & TOKENIZE_FLAGS_noIn)!=0;
1627	int currLine = l->currentLine(), currColumn = l->currentColumn();
1628
1629	bool leftHand = true;
1630	int tk = l->tk;
1631	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push BeginIdx
1632
1633	STRING_VECTOR_t vars;
1634	for(;;)
1635	{
1636	bool needAssignment = false;
1637	State.Tokens.push_back(tokenizeVarIdentifier(&vars, &needAssignment));
1638	if(noIN && (l->tk==LEX_R_IN \|\| (l->tk==LEX_ID && l->tkStr=="of")))
1639	break;
1640	if(needAssignment \|\| l->tk=='=') {
1641	leftHand = false;
1642	pushToken(State.Tokens, '=');
1643	tokenizeAssignment(State, Flags);
1644	if(noIN && (l->tk==LEX_R_IN \|\| (l->tk==LEX_ID && l->tkStr=="of")))
1645	break;
1646	}
1647	if(l->tk==',') {
1648	leftHand = false;
1649	pushToken(State.Tokens);
1650	}
1651	else
1652	break;
1653	}
1654	if(!noIN) pushToken(State.Tokens, ';');
1655
1656	setTokenSkip(State);
1657
1658	if(tk==LEX_R_VAR)
1659	State.Forwarders.front()->addVars(vars);
1660	else
1661	State.Forwarders.front()->addConsts(vars);
1662	string redeclared;
1663	if(State.Forwarders.size()>1) // have let-scope
1664	redeclared = State.Forwarders.back()->addVarsInLetscope(vars);
1665	#ifdef PREVENT_REDECLARATION_IN_FUNCTION_SCOPES
1666	else
1667	redeclared = State.Forwarders.front()->addVarsInLetscope(vars);
1668	#endif
1669	if(redeclared.size())
1670	throw new CScriptException(TypeError, "redeclaration of variable '"+redeclared+"'", l->currentFile, currLine, currColumn);
1671	if(leftHand) State.LeftHand = true;
1672	}
1673
1674	void CScriptTokenizer::_tokenizeLiteralObject(ScriptTokenState &State, int Flags) {
1675	bool forFor = (Flags & TOKENIZE_FLAGS_noIn)!=0;
1676	bool nestedObject = (Flags & TOKENIZE_FLAGS_nestedObject) != 0;
1677	Flags &= ~(TOKENIZE_FLAGS_noIn \| TOKENIZE_FLAGS_nestedObject);
1678	CScriptToken ObjectToken(LEX_T_OBJECT_LITERAL);
1679	CScriptTokenDataObjectLiteral &Objc = ObjectToken.Object();
1680
1681	Objc.type = CScriptTokenDataObjectLiteral::OBJECT;
1682	Objc.destructuring = Objc.structuring = true;
1683
1684	string msg, msgFile;
1685	int msgLine=0, msgColumn=0;
1686
1687	l->match('{');
1688	while (l->tk != '}') {
1689	CScriptTokenDataObjectLiteral::ELEMENT element;
1690	bool assign = false;
1691	if(CScriptToken::isReservedWord(l->tk))
1692	l->tk = LEX_ID; // fake reserved-word as member.ID
1693	if(l->tk == LEX_ID) {
1694	element.id = l->tkStr;
1695	CScriptToken Token(l, LEX_ID);
1696	if((l->tk==LEX_ID \|\| l->tk==LEX_STR ) && (element.id=="get" \|\| element.id=="set")) {
1697	element.id = l->tkStr;
1698	element.value.push_back(Token);
1699	State.Tokens.swap(element.value);
1700	tokenizeFunction(State, Flags\|TOKENIZE_FLAGS_isAccessor);
1701	State.Tokens.swap(element.value);
1702	Objc.destructuring = false;
1703	} else {
1704	if(Objc.destructuring && (l->tk == ',' \|\| l->tk == '}')) {
1705	if(!msg.size()) {
1706	Objc.structuring = false;
1707	msg.append("Got '").append(CScriptToken::getTokenStr(l->tk)).append("' expected ':'");
1708	msgFile = l->currentFile;
1709	msgLine = l->currentLine();
1710	msgColumn = l->currentColumn();
1711	;
1712	}
1713	element.value.push_back(Token);
1714	} else
1715	assign = true;
1716	}
1717	} else if(l->tk == LEX_INT) {
1718	element.id = int2string((int32_t)strtol(l->tkStr.c_str(),0,0));
1719	l->match(LEX_INT);
1720	assign = true;
1721	} else if(l->tk == LEX_FLOAT) {
1722	element.id = float2string(strtod(l->tkStr.c_str(),0));
1723	l->match(LEX_FLOAT);
1724	assign = true;
1725	} else if(LEX_TOKEN_DATA_STRING(l->tk) && l->tk != LEX_REGEXP) {
1726	element.id = l->tkStr;
1727	l->match(l->tk);
1728	assign = true;
1729	} else
1730	l->match(LEX_ID, LEX_STR);
1731	if(assign) {
1732	l->match(':');
1733	int dFlags = Flags \| (l->tk == '{' \|\| l->tk == '[') ? TOKENIZE_FLAGS_nestedObject : 0;
1734	State.pushLeftHandState();
1735	State.Tokens.swap(element.value);
1736	tokenizeAssignment(State, dFlags);
1737	State.Tokens.swap(element.value);
1738	if(Objc.destructuring) Objc.destructuring = State.LeftHand;
1739	State.popLeftHandeState();
1740	}
1741
1742	if(!Objc.destructuring && msg.size())
1743	throw new CScriptException(SyntaxError, msg, msgFile, msgLine, msgColumn);
1744	Objc.elements.push_back(element);
1745	if (l->tk != '}') l->match(',', '}');
1746	}
1747	l->match('}');
1748	if(Objc.destructuring && Objc.structuring) {
1749	if(nestedObject) {
1750	if(l->tk!=',' && l->tk!='}' && l->tk!='=')
1751	Objc.destructuring = false;
1752	}
1753	else
1754	Objc.setMode(l->tk=='=' \|\| (forFor && (l->tk==LEX_R_IN \|\|(l->tk==LEX_ID && l->tkStr=="of"))));
1755	} else {
1756	if(!Objc.destructuring && msg.size())
1757	throw new CScriptException(SyntaxError, msg, msgFile, msgLine, msgColumn);
1758	if(!nestedObject) Objc.setMode(Objc.destructuring);
1759	}
1760
1761	if(Objc.destructuring)
1762	State.LeftHand = true;
1763	State.Tokens.push_back(ObjectToken);
1764	}
1765	void CScriptTokenizer::_tokenizeLiteralArray(ScriptTokenState &State, int Flags) {
1766	bool forFor = (Flags & TOKENIZE_FLAGS_noIn)!=0;
1767	bool nestedObject = (Flags & TOKENIZE_FLAGS_nestedObject) != 0;
1768	Flags &= ~(TOKENIZE_FLAGS_noIn \| TOKENIZE_FLAGS_nestedObject);
1769	CScriptToken ObjectToken(LEX_T_OBJECT_LITERAL);
1770	CScriptTokenDataObjectLiteral &Objc = ObjectToken.Object();
1771
1772	Objc.type = CScriptTokenDataObjectLiteral::ARRAY;
1773	Objc.destructuring = Objc.structuring = true;
1774	int idx = 0;
1775
1776	l->match('[');
1777	while (l->tk != ']') {
1778	CScriptTokenDataObjectLiteral::ELEMENT element;
1779	element.id = int2string(idx++);
1780	if(l->tk != ',') {
1781	int dFlags = Flags \| (l->tk == '{' \|\| l->tk == '[') ? TOKENIZE_FLAGS_nestedObject : 0;
1782	State.pushLeftHandState();
1783	State.Tokens.swap(element.value);
1784	tokenizeAssignment(State, dFlags);
1785	State.Tokens.swap(element.value);
1786	if(Objc.destructuring) Objc.destructuring = State.LeftHand;
1787	State.popLeftHandeState();
1788	}
1789	Objc.elements.push_back(element);
1790	if (l->tk != ']') l->match(',', ']');
1791	}
1792	l->match(']');
1793	if(Objc.destructuring && Objc.structuring) {
1794	if(nestedObject) {
1795	if(l->tk!=',' && l->tk!=']' && l->tk!='=')
1796	Objc.destructuring = false;
1797	}
1798	else
1799	Objc.setMode(l->tk=='=' \|\| (forFor && (l->tk==LEX_R_IN \|\|(l->tk==LEX_ID && l->tkStr=="of"))));
1800	} else
1801	if(!nestedObject) Objc.setMode(Objc.destructuring);
1802	if(Objc.destructuring)
1803	State.LeftHand = true;
1804	State.Tokens.push_back(ObjectToken);
1805	}
1806
1807	void CScriptTokenizer::tokenizeLiteral(ScriptTokenState &State, int Flags) {
1808	State.LeftHand = 0;
1809	bool canLabel = Flags & TOKENIZE_FLAGS_canLabel; Flags &= ~TOKENIZE_FLAGS_canLabel;
1810	int ObjectLiteralFlags = Flags;
1811	Flags &= ~TOKENIZE_FLAGS_noIn;
1812	switch(l->tk) {
1813	case LEX_ID:
1814	{
1815	string label = l->tkStr;
1816	pushToken(State.Tokens);
1817	if(l->tk==':' && canLabel) {
1818	if(find(State.Labels.begin(), State.Labels.end(), label) != State.Labels.end())
1819	throw new CScriptException(SyntaxError, "dublicate label '"+label+"'", l->currentFile, l->currentLine(), l->currentColumn()-label.size());
1820	State.Tokens[State.Tokens.size()-1].token = LEX_T_LABEL; // change LEX_ID to LEX_T_LABEL
1821	State.Labels.push_back(label);
1822	} else if(label=="this") {
1823	if( l->tk == '=' \|\| (l->tk >= LEX_ASSIGNMENTS_BEGIN && l->tk <= LEX_ASSIGNMENTS_END) )
1824	throw new CScriptException(SyntaxError, "invalid assignment left-hand side", l->currentFile, l->currentLine(), l->currentColumn()-label.size());
1825	if( l->tk==LEX_PLUSPLUS \|\| l->tk==LEX_MINUSMINUS )
1826	throw new CScriptException(SyntaxError, l->tk==LEX_PLUSPLUS?"invalid increment operand":"invalid decrement operand", l->currentFile, l->currentLine(), l->currentColumn()-label.size());
1827	} else
1828	State.LeftHand = true;
1829	}
1830	break;
1831	case LEX_INT:
1832	case LEX_FLOAT:
1833	case LEX_STR:
1834	case LEX_REGEXP:
1835	case LEX_R_TRUE:
1836	case LEX_R_FALSE:
1837	case LEX_R_NULL:
1838	pushToken(State.Tokens);
1839	break;
1840	case '{':
1841	_tokenizeLiteralObject(State, ObjectLiteralFlags);
1842	break;
1843	case '[':
1844	_tokenizeLiteralArray(State, ObjectLiteralFlags);
1845	break;
1846	case LEX_R_LET: // let as expression
1847	tokenizeLet(State, Flags);
1848	break;
1849	case LEX_R_FUNCTION:
1850	tokenizeFunction(State, Flags);
1851	break;
1852	case LEX_R_NEW:
1853	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push BeginIdx
1854	{
1855	tokenizeFunctionCall(State, (Flags \| TOKENIZE_FLAGS_callForNew) & ~TOKENIZE_FLAGS_noIn);
1856	State.LeftHand = 0;
1857	}
1858	setTokenSkip(State);
1859	break;
1860	case '(':
1861	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push BeginIdx
1862	tokenizeExpression(State, Flags & ~TOKENIZE_FLAGS_noIn);
1863	State.LeftHand = 0;
1864	pushToken(State.Tokens, ')');
1865	setTokenSkip(State);
1866	break;
1867	default:
1868	l->check(LEX_EOF);
1869	}
1870	}
1871	void CScriptTokenizer::tokenizeMember(ScriptTokenState &State, int Flags) {
1872	while(l->tk == '.' \|\| l->tk == '[') {
1873	if(l->tk == '.') {
1874	pushToken(State.Tokens);
1875	if(CScriptToken::isReservedWord(l->tk))
1876	l->tk = LEX_ID; // fake reserved-word as member.ID
1877	pushToken(State.Tokens , LEX_ID);
1878	} else {
1879	State.Marks.push_back(pushToken(State.Tokens));
1880	State.pushLeftHandState();
1881	tokenizeExpression(State, Flags & ~TOKENIZE_FLAGS_noIn);
1882	State.popLeftHandeState();
1883	pushToken(State.Tokens, ']');
1884	setTokenSkip(State);
1885	}
1886	State.LeftHand = true;
1887	}
1888	}
1889	void CScriptTokenizer::tokenizeFunctionCall(ScriptTokenState &State, int Flags) {
1890	bool for_new = (Flags & TOKENIZE_FLAGS_callForNew)!=0; Flags &= ~TOKENIZE_FLAGS_callForNew;
1891	tokenizeLiteral(State, Flags);
1892	tokenizeMember(State, Flags);
1893	while(l->tk == '(') {
1894	State.LeftHand = false;
1895	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push BeginIdx
1896	State.pushLeftHandState();
1897	while(l->tk!=')') {
1898	tokenizeAssignment(State, Flags & ~TOKENIZE_FLAGS_noIn);
1899	if (l->tk!=')') pushToken(State.Tokens, ',', ')');
1900	}
1901	State.popLeftHandeState();
1902	pushToken(State.Tokens);
1903	setTokenSkip(State);
1904	if(for_new) break;
1905	tokenizeMember(State, Flags);
1906	}
1907	}
1908
1909	void CScriptTokenizer::tokenizeSubExpression(ScriptTokenState &State, int Flags) {
1910	static int Left2Right_begin[] = {
1911	/* Precedence 5 / '', '/', '%',
1912	/* Precedence 6 */ '+', '-',
1913	/* Precedence 7 */ LEX_LSHIFT, LEX_RSHIFT, LEX_RSHIFTU,
1914	/* Precedence 8 */ LEX_EQUAL, LEX_NEQUAL, LEX_TYPEEQUAL, LEX_NTYPEEQUAL,
1915	/* Precedence 9 */ '<', LEX_LEQUAL, '>', LEX_GEQUAL, LEX_R_IN, LEX_R_INSTANCEOF,
1916	/* Precedence 10-12 */ '&', '^', '\|',
1917	};
1918	static int *Left2Right_end = &Left2Right_begin[sizeof(Left2Right_begin)/sizeof(Left2Right_begin[0])];
1919	static bool Left2Right_sorted = false;
1920	if(!Left2Right_sorted) Left2Right_sorted = (sort(Left2Right_begin, Left2Right_end), true);
1921	bool noLeftHand = false;
1922	for(;;) {
1923	bool right2left_end = false;
1924	while(!right2left_end) {
1925	switch(l->tk) {
1926	case '-':
1927	case '+':
1928	case '!':
1929	case '~':
1930	case LEX_R_TYPEOF:
1931	case LEX_R_VOID:
1932	case LEX_R_DELETE:
1933	Flags &= ~TOKENIZE_FLAGS_canLabel;
1934	noLeftHand = true;
1935	pushToken(State.Tokens); // Precedence 3
1936	break;
1937	case LEX_PLUSPLUS: // pre-increment
1938	case LEX_MINUSMINUS: // pre-decrement
1939	{
1940	int tk = l->tk;
1941	Flags &= ~TOKENIZE_FLAGS_canLabel;
1942	noLeftHand = true;
1943	pushToken(State.Tokens); // Precedence 4
1944	if(l->tk == LEX_ID && l->tkStr == "this")
1945	throw new CScriptException(SyntaxError, tk==LEX_PLUSPLUS?"invalid increment operand":"invalid decrement operand", l->currentFile, l->currentLine(), l->currentColumn());
1946	}
1947	default:
1948	right2left_end = true;
1949	}
1950	}
1951	tokenizeFunctionCall(State, Flags);
1952
1953	if (!l->lineBreakBeforeToken && (l->tk==LEX_PLUSPLUS \|\| l->tk==LEX_MINUSMINUS)) { // post-in-/de-crement
1954	noLeftHand = true;;
1955	pushToken(State.Tokens); // Precedence 4
1956	}
1957	if(Flags&TOKENIZE_FLAGS_noIn && l->tk==LEX_R_IN)
1958	break;
1959	int *found = lower_bound(Left2Right_begin, Left2Right_end, l->tk);
1960	if(found != Left2Right_end && *found == l->tk) {
1961	noLeftHand = true;
1962	pushToken(State.Tokens); // Precedence 5-14
1963	}
1964	else
1965	break;
1966	}
1967	if(noLeftHand) State.LeftHand = false;
1968	}
1969
1970	void CScriptTokenizer::tokenizeLogic(ScriptTokenState &State, int Flags, int op /= LEX_OROR/, int op_n /= LEX_ANDAND/) {
1971	op_n ? tokenizeLogic(State, Flags, op_n, 0) : tokenizeSubExpression(State, Flags);
1972	if(l->tk==op) {
1973	unsigned int marks_count = State.Marks.size();
1974	while(l->tk==op) {
1975	State.Marks.push_back(pushToken(State.Tokens));
1976	op_n ? tokenizeLogic(State, Flags, op_n, 0) : tokenizeSubExpression(State, Flags);
1977	}
1978	while(State.Marks.size()>marks_count) setTokenSkip(State);
1979	State.LeftHand = false;
1980	}
1981	}
1982
1983	void CScriptTokenizer::tokenizeCondition(ScriptTokenState &State, int Flags) {
1984	tokenizeLogic(State, Flags);
1985	if(l->tk == '?') {
1986	Flags &= ~TOKENIZE_FLAGS_noIn;
1987	State.Marks.push_back(pushToken(State.Tokens));
1988	tokenizeCondition(State, Flags);
1989	setTokenSkip(State);
1990	State.Marks.push_back(pushToken(State.Tokens, ':'));
1991	tokenizeCondition(State, Flags);
1992	setTokenSkip(State);
1993	State.LeftHand = false;
1994	}
1995	}
1996	void CScriptTokenizer::tokenizeAssignment(ScriptTokenState &State, int Flags) {
1997	tokenizeCondition(State, Flags);
1998	if (l->tk=='=' \|\| (l->tk>=LEX_ASSIGNMENTS_BEGIN && l->tk<=LEX_ASSIGNMENTS_END) ) {
1999	if(!State.LeftHand)
2000	throw new CScriptException(ReferenceError, "invalid assignment left-hand side", l->currentFile, l->currentLine(), l->currentColumn());
2001	pushToken(State.Tokens);
2002	tokenizeAssignment(State, Flags);
2003	State.LeftHand = false;
2004	}
2005	}
2006	void CScriptTokenizer::tokenizeExpression(ScriptTokenState &State, int Flags) {
2007	tokenizeAssignment(State, Flags);
2008	while(l->tk == ',') {
2009	pushToken(State.Tokens);
2010	tokenizeAssignment(State, Flags);
2011	State.LeftHand = false;
2012	}
2013	}
2014	void CScriptTokenizer::tokenizeBlock(ScriptTokenState &State, int Flags) {
2015	bool addBlockStart = (Flags&TOKENIZE_FLAGS_noBlockStart)==0;
2016	Flags&=~(TOKENIZE_FLAGS_noBlockStart);
2017	State.Marks.push_back(pushToken(State.Tokens, '{')); // push Token & push BeginIdx
2018	if(addBlockStart) pushForwarder(State);
2019
2020	while(l->tk != '}' && l->tk != LEX_EOF)
2021	tokenizeStatement(State, Flags);
2022	pushToken(State.Tokens, '}');
2023
2024	if(addBlockStart) removeEmptyForwarder(State); // clean-up BlockStarts
2025
2026	setTokenSkip(State);
2027	}
2028
2029	void CScriptTokenizer::tokenizeStatementNoLet(ScriptTokenState &State, int Flags) {
2030	if(l->tk == LEX_R_LET)
2031	tokenizeLet(State, Flags \| TOKENIZE_FLAGS_asStatement, true);
2032	else if(l->tk==LEX_R_FUNCTION)
2033	tokenizeFunction(State, Flags \| TOKENIZE_FLAGS_asStatement, true);
2034	else
2035	tokenizeStatement(State, Flags);
2036	}
2037	void CScriptTokenizer::tokenizeStatement(ScriptTokenState &State, int Flags) {
2038	switch(l->tk)
2039	{
2040	case '{': tokenizeBlock(State, Flags); break;
2041	case ';': pushToken(State.Tokens); break;
2042	case LEX_R_CONST:
2043	case LEX_R_VAR: tokenizeVarAndConst(State, Flags); break;
2044	case LEX_R_LET: tokenizeLet(State, Flags \| TOKENIZE_FLAGS_asStatement); break;
2045	case LEX_R_WITH: tokenizeWith(State, Flags); break;
2046	case LEX_R_IF: tokenizeIf(State, Flags); break;
2047	case LEX_R_SWITCH: tokenizeSwitch(State, Flags); break;
2048	case LEX_R_DO:
2049	case LEX_R_WHILE: tokenizeWhileAndDo(State, Flags); break;
2050	case LEX_R_FOR: tokenizeFor(State, Flags); break;
2051	case LEX_R_FUNCTION: tokenizeFunction(State, Flags \| TOKENIZE_FLAGS_asStatement); break;
2052	case LEX_R_TRY: tokenizeTry(State, Flags); break;
2053	case LEX_R_RETURN:
2054	if( (Flags & TOKENIZE_FLAGS_canReturn)==0)
2055	throw new CScriptException(SyntaxError, "'return' statement, but not in a function.", l->currentFile, l->currentLine(), l->currentColumn());
2056	case LEX_R_THROW:
2057	State.Marks.push_back(pushToken(State.Tokens)); // push Token & push BeginIdx
2058	if(l->tk != ';' && !l->lineBreakBeforeToken) {
2059	tokenizeExpression(State, Flags);
2060	}
2061	pushToken(State.Tokens, ';'); // push ';'
2062	setTokenSkip(State);
2063	break;
2064	case LEX_R_BREAK:
2065	case LEX_R_CONTINUE:
2066	{
2067	bool isBreak = l->tk == LEX_R_BREAK;
2068	State.Marks.push_back(pushToken(State.Tokens)); // push Token
2069
2070	if(l->tk != ';' && !l->lineBreakBeforeToken) {
2071	l->check(LEX_ID);
2072	STRING_VECTOR_t &L = isBreak ? State.Labels : State.LoopLabels;
2073	if(find(L.begin(), L.end(), l->tkStr) == L.end())
2074	throw new CScriptException(SyntaxError, "label '"+l->tkStr+"' not found", l->currentFile, l->currentLine(), l->currentColumn());
2075	pushToken(State.Tokens); // push 'Label'
2076	} else if((Flags & (isBreak ? TOKENIZE_FLAGS_canBreak : TOKENIZE_FLAGS_canContinue) )==0)
2077	throw new CScriptException(SyntaxError,
2078	isBreak ? "'break' must be inside loop, switch or labeled statement" : "'continue' must be inside loop",
2079	l->currentFile, l->currentLine(), l->currentColumn());
2080	pushToken(State.Tokens, ';'); // push ';'
2081	setTokenSkip(State);
2082	}
2083	break;
2084	case LEX_ID:
2085	{
2086	State.Marks.push_back(pushToken(State.Tokens, CScriptToken(LEX_T_SKIP))); // push skip & skiperBeginIdx
2087	STRING_VECTOR_t::size_type label_count = State.Labels.size();
2088	tokenizeExpression(State, Flags \| TOKENIZE_FLAGS_canLabel);
2089	if(label_count < State.Labels.size() && l->tk == ':') {
2090	State.Tokens.erase(State.Tokens.begin()+State.Marks.back()); // remove skip
2091	State.Marks.pop_back();
2092	pushToken(State.Tokens); // push ':'
2093	tokenizeStatement(State, Flags);
2094	State.Labels.pop_back();
2095	} else {
2096	pushToken(State.Tokens, ';');
2097	setTokenSkip(State);
2098	}
2099	}
2100	break;
2101	default:
2102	State.Marks.push_back(pushToken(State.Tokens, CScriptToken(LEX_T_SKIP))); // push skip & skiperBeginIdx
2103	tokenizeExpression(State, Flags);
2104	pushToken(State.Tokens, ';');
2105	setTokenSkip(State);
2106	break;
2107	}
2108	}
2109
2110	int CScriptTokenizer::pushToken(TOKEN_VECT &Tokens, int Match, int Alternate) {
2111	if(Match == ';' && l->tk != ';' && (l->lineBreakBeforeToken \|\| l->tk=='}' \|\| l->tk==LEX_EOF))
2112	Tokens.push_back(CScriptToken(';')); // inject ';'
2113	else
2114	Tokens.push_back(CScriptToken(l, Match, Alternate));
2115	return Tokens.size()-1;
2116	}
2117	int CScriptTokenizer::pushToken(TOKEN_VECT &Tokens, const CScriptToken &Token) {
2118	int ret = Tokens.size();
2119	Tokens.push_back(Token);
2120	return ret;
2121	}
2122	void CScriptTokenizer::pushForwarder(TOKEN_VECT &Tokens, FORWARDER_VECTOR_t &Forwarders, vector<int> &Marks) {
2123	Marks.push_back(Tokens.size());
2124	CScriptToken token(LEX_T_FORWARD);
2125	Tokens.push_back(token);
2126	Forwarders.push_back(token.Forwarder());
2127	}
2128	void CScriptTokenizer::pushForwarder(ScriptTokenState &State, bool noMarks/=false/) {
2129	if(!noMarks) State.Marks.push_back(State.Tokens.size());
2130	CScriptToken token(LEX_T_FORWARD);
2131	State.Tokens.push_back(token);
2132	State.Forwarders.push_back(token.Forwarder());
2133	}
2134	void CScriptTokenizer::removeEmptyForwarder(ScriptTokenState &State)
2135	{
2136	CScriptTokenDataForwardsPtr &forwarder = State.Forwarders.back();
2137	forwarder->vars_in_letscope.clear();
2138	if(forwarder->empty())
2139	State.Tokens.erase(State.Tokens.begin()+State.Marks.back());
2140	State.Forwarders.pop_back();
2141	State.Marks.pop_back();
2142	}
2143
2144	void CScriptTokenizer::removeEmptyForwarder( TOKEN_VECT &Tokens, FORWARDER_VECTOR_t &Forwarders, vector<int> &Marks )
2145	{
2146	CScriptTokenDataForwardsPtr &forwarder = Forwarders.back();
2147	forwarder->vars_in_letscope.clear();
2148	if(forwarder->empty())
2149	Tokens.erase(Tokens.begin()+Marks.back());
2150	Forwarders.pop_back();
2151	Marks.pop_back();
2152	}
2153	void CScriptTokenizer::throwTokenNotExpected() {
2154	throw new CScriptException(SyntaxError, "'"+CScriptToken::getTokenStr(l->tk)+"' was not expected", l->currentFile, l->currentLine(), l->currentColumn());
2155	}
2156
2157
2158	//////////////////////////////////////////////////////////////////////////
2159	/// CScriptVar
2160	//////////////////////////////////////////////////////////////////////////
2161
2162	CScriptVar::CScriptVar(CTinyJS *Context, const CScriptVarPtr &Prototype) {
2163	extensible = true;
2164	context = Context;
2165	temporaryID = 0;
2166	if(context->first) {
2167	next = context->first;
2168	next->prev = this;
2169	} else {
2170	next = 0;
2171	}
2172	context->first = this;
2173	prev = 0;
2174	refs = 0;
2175	if(Prototype)
2176	addChild(TINYJS___PROTO___VAR, Prototype, SCRIPTVARLINK_WRITABLE);
2177	#if DEBUG_MEMORY
2178	mark_allocated(this);
2179	#endif
2180	}
2181	CScriptVar::CScriptVar(const CScriptVar &Copy) {
2182	extensible = Copy.extensible;
2183	context = Copy.context;
2184	temporaryID = 0;
2185	if(context->first) {
2186	next = context->first;
2187	next->prev = this;
2188	} else {
2189	next = 0;
2190	}
2191	context->first = this;
2192	prev = 0;
2193	refs = 0;
2194	SCRIPTVAR_CHILDS_cit it;
2195	for(it = Copy.Childs.begin(); it!= Copy.Childs.end(); ++it) {
2196	addChild((it)->getName(), (it)->getVarPtr(), (*it)->getFlags());
2197	}
2198
2199	#if DEBUG_MEMORY
2200	mark_allocated(this);
2201	#endif
2202	}
2203	CScriptVar::~CScriptVar(void) {
2204	#if DEBUG_MEMORY
2205	mark_deallocated(this);
2206	#endif
2207	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it)
2208	(*it)->setOwner(0);
2209	removeAllChildren();
2210	if(prev)
2211	prev->next = next;
2212	else
2213	context->first = next;
2214	if(next)
2215	next->prev = prev;
2216	}
2217
2218	/// Type
2219
2220	bool CScriptVar::isObject() {return false;}
2221	bool CScriptVar::isError() {return false;}
2222	bool CScriptVar::isArray() {return false;}
2223	bool CScriptVar::isRegExp() {return false;}
2224	bool CScriptVar::isAccessor() {return false;}
2225	bool CScriptVar::isNull() {return false;}
2226	bool CScriptVar::isUndefined() {return false;}
2227	bool CScriptVar::isNaN() {return false;}
2228	bool CScriptVar::isString() {return false;}
2229	bool CScriptVar::isInt() {return false;}
2230	bool CScriptVar::isBool() {return false;}
2231	int CScriptVar::isInfinity() { return 0; } ///< +1==POSITIVE_INFINITY, -1==NEGATIVE_INFINITY, 0==is not an InfinityVar
2232	bool CScriptVar::isDouble() {return false;}
2233	bool CScriptVar::isRealNumber() {return false;}
2234	bool CScriptVar::isNumber() {return false;}
2235	bool CScriptVar::isPrimitive() {return false;}
2236	bool CScriptVar::isFunction() {return false;}
2237	bool CScriptVar::isNative() {return false;}
2238	bool CScriptVar::isBounded() {return false;}
2239	bool CScriptVar::isIterator() {return false;}
2240
2241	//////////////////////////////////////////////////////////////////////////
2242	/// Value
2243	//////////////////////////////////////////////////////////////////////////
2244
2245	CScriptVarPrimitivePtr CScriptVar::getRawPrimitive() {
2246	return CScriptVarPrimitivePtr(); // default NULL-Ptr
2247	}
2248	CScriptVarPrimitivePtr CScriptVar::toPrimitive() {
2249	return toPrimitive_hintNumber();
2250	}
2251
2252	CScriptVarPrimitivePtr CScriptVar::toPrimitive(CScriptResult &execute) {
2253	return toPrimitive_hintNumber(execute);
2254	}
2255
2256	CScriptVarPrimitivePtr CScriptVar::toPrimitive_hintString(int32_t radix) {
2257	CScriptResult execute;
2258	CScriptVarPrimitivePtr var = toPrimitive_hintString(execute, radix);
2259	execute.cThrow();
2260	return var;
2261	}
2262	CScriptVarPrimitivePtr CScriptVar::toPrimitive_hintString(CScriptResult &execute, int32_t radix) {
2263	if(execute) {
2264	if(!isPrimitive()) {
2265	CScriptVarPtr ret = callJS_toString(execute, radix);
2266	if(execute && !ret->isPrimitive()) {
2267	ret = callJS_valueOf(execute);
2268	if(execute && !ret->isPrimitive())
2269	context->throwError(execute, TypeError, "can't convert b to primitive type");
2270	}
2271	return ret;
2272	}
2273	return this;
2274	}
2275	return constScriptVar(Undefined);
2276	}
2277	CScriptVarPrimitivePtr CScriptVar::toPrimitive_hintNumber() {
2278	CScriptResult execute;
2279	CScriptVarPrimitivePtr var = toPrimitive_hintNumber(execute);
2280	execute.cThrow();
2281	return var;
2282	}
2283	CScriptVarPrimitivePtr CScriptVar::toPrimitive_hintNumber(CScriptResult &execute) {
2284	if(execute) {
2285	if(!isPrimitive()) {
2286	CScriptVarPtr ret = callJS_valueOf(execute);
2287	if(execute && !ret->isPrimitive()) {
2288	ret = callJS_toString(execute);
2289	if(execute && !ret->isPrimitive())
2290	context->throwError(execute, TypeError, "can't convert to primitive type");
2291	}
2292	return ret;
2293	}
2294	return this;
2295	}
2296	return constScriptVar(Undefined);
2297	}
2298
2299	CScriptVarPtr CScriptVar::callJS_valueOf(CScriptResult &execute) {
2300	if(execute) {
2301	CScriptVarPtr FncValueOf = findChildWithPrototypeChain("valueOf").getter(execute);
2302	if(FncValueOf != context->objectPrototype_valueOf) { // custom valueOf in JavaScript
2303	if(FncValueOf->isFunction()) { // no Error if toString not callable
2304	vector<CScriptVarPtr> Params;
2305	return context->callFunction(execute, FncValueOf, Params, this);
2306	}
2307	} else
2308	return valueOf_CallBack();
2309	}
2310	return this;
2311	}
2312	CScriptVarPtr CScriptVar::valueOf_CallBack() {
2313	return this;
2314	}
2315
2316	CScriptVarPtr CScriptVar::callJS_toString(CScriptResult &execute, int radix/=0/) {
2317	if(execute) {
2318	CScriptVarPtr FncToString = findChildWithPrototypeChain("toString").getter(execute);
2319	if(FncToString != context->objectPrototype_toString) { // custom valueOf in JavaScript
2320	if(FncToString->isFunction()) { // no Error if toString not callable
2321	vector<CScriptVarPtr> Params;
2322	Params.push_back(newScriptVar(radix));
2323	return context->callFunction(execute, FncToString, Params, this);
2324	}
2325	} else
2326	return toString_CallBack(execute, radix);
2327	}
2328	return this;
2329	}
2330	CScriptVarPtr CScriptVar::toString_CallBack(CScriptResult &execute, int radix/=0/) {
2331	return this;
2332	}
2333
2334	CNumber CScriptVar::toNumber() { return toPrimitive_hintNumber()->toNumber_Callback(); };
2335	CNumber CScriptVar::toNumber(CScriptResult &execute) { return toPrimitive_hintNumber(execute)->toNumber_Callback(); };
2336	bool CScriptVar::toBoolean() { return true; }
2337	string CScriptVar::toString(int32_t radix) { return toPrimitive_hintString(radix)->toCString(radix); }
2338	string CScriptVar::toString(CScriptResult &execute, int32_t radix) { return toPrimitive_hintString(execute, radix)->toCString(radix); }
2339
2340	int CScriptVar::getInt() { return toNumber().toInt32(); }
2341	double CScriptVar::getDouble() { return toNumber().toDouble(); }
2342	bool CScriptVar::getBool() { return toBoolean(); }
2343	string CScriptVar::getString() { return toPrimitive_hintString()->toCString(); }
2344
2345	CScriptTokenDataFnc *CScriptVar::getFunctionData() { return 0; }
2346
2347	CScriptVarPtr CScriptVar::toIterator(int Mode/=3/) {
2348	CScriptResult execute;
2349	CScriptVarPtr var = toIterator(execute, Mode);
2350	execute.cThrow();
2351	return var;
2352	}
2353	CScriptVarPtr CScriptVar::toIterator(CScriptResult &execute, int Mode/=3/) {
2354	if(!execute) return constScriptVar(Undefined);
2355	if(isIterator()) return this;
2356	CScriptVarFunctionPtr Generator(findChildWithPrototypeChain("__iterator__").getter(execute));
2357	vector<CScriptVarPtr> args;
2358	if(Generator) return context->callFunction(execute, Generator, args, this);
2359	return newScriptVarDefaultIterator(context, this, Mode);
2360	}
2361
2362	string CScriptVar::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) {
2363	getParsableStringRecursionsCheck();
2364	return toString();
2365	}
2366
2367	CScriptVarPtr CScriptVar::getNumericVar() { return newScriptVar(toNumber()); }
2368
2369	////// Flags
2370
2371	void CScriptVar::seal() {
2372	preventExtensions();
2373	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it)
2374	(*it)->setConfigurable(false);
2375	}
2376	bool CScriptVar::isSealed() const {
2377	if(isExtensible()) return false;
2378	for(SCRIPTVAR_CHILDS_cit it = Childs.begin(); it != Childs.end(); ++it)
2379	if((*it)->isConfigurable()) return false;
2380	return true;
2381	}
2382	void CScriptVar::freeze() {
2383	preventExtensions();
2384	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it)
2385	(it)->setConfigurable(false), (it)->setWritable(false);
2386	}
2387	bool CScriptVar::isFrozen() const {
2388	if(isExtensible()) return false;
2389	for(SCRIPTVAR_CHILDS_cit it = Childs.begin(); it != Childs.end(); ++it)
2390	if((it)->isConfigurable() \|\| (it)->isWritable()) return false;
2391	return true;
2392	}
2393
2394	////// Childs
2395
2396	CScriptVarPtr CScriptVar::getOwnPropertyDescriptor(const string &Name) {
2397	CScriptVarLinkPtr child = findChild(Name);
2398	if(!child) {
2399	CScriptVarStringPtr strVar = getRawPrimitive();
2400	uint32_t Idx;
2401	if (strVar && (Idx=isArrayIndex(Name))!=uint32_t(-1) && Idx<strVar->stringLength()) {
2402	int Char = strVar->getChar(Idx);
2403	CScriptVarPtr ret = newScriptVar(Object);
2404	ret->addChild("value", newScriptVar(string(1, (char)Char)));
2405	ret->addChild("writable", constScriptVar(false));
2406	ret->addChild("enumerable", constScriptVar(true));
2407	ret->addChild("configurable", constScriptVar(false));
2408	return ret;
2409	}
2410	}
2411
2412	if(!child \|\| child->getVarPtr()->isUndefined()) return constScriptVar(Undefined);
2413	CScriptVarPtr ret = newScriptVar(Object);
2414	if(child->getVarPtr()->isAccessor()) {
2415	CScriptVarLinkPtr value = child->getVarPtr()->findChild(TINYJS_ACCESSOR_GET_VAR);
2416	ret->addChild("get", value ? value->getVarPtr() : constScriptVar(Undefined));
2417	value = child->getVarPtr()->findChild(TINYJS_ACCESSOR_SET_VAR);
2418	ret->addChild("set", value ? value->getVarPtr() : constScriptVar(Undefined));
2419	} else {
2420	ret->addChild("value", child->getVarPtr()->valueOf_CallBack());
2421	ret->addChild("writable", constScriptVar(child->isWritable()));
2422	}
2423	ret->addChild("enumerable", constScriptVar(child->isEnumerable()));
2424	ret->addChild("configurable", constScriptVar(child->isConfigurable()));
2425	return ret;
2426	}
2427	const char *CScriptVar::defineProperty(const string &Name, CScriptVarPtr Attributes) {
2428	CScriptVarPtr attr;
2429	CScriptVarLinkPtr child = findChildWithStringChars(Name);
2430
2431	CScriptVarPtr attr_value = Attributes->findChild("value");
2432	CScriptVarPtr attr_writable = Attributes->findChild("writable");
2433	CScriptVarPtr attr_get = Attributes->findChild("get");
2434	CScriptVarPtr attr_set = Attributes->findChild("set");
2435	CScriptVarPtr attr_enumerable = Attributes->findChild("enumerable");
2436	CScriptVarPtr attr_configurable = Attributes->findChild("configurable");
2437	bool attr_isDataDescriptor = !attr_get && !attr_set;
2438	if(!attr_isDataDescriptor && (attr_value \|\| attr_writable)) return "property descriptors must not specify a value or be writable when a getter or setter has been specified";
2439	if(attr_isDataDescriptor) {
2440	if(attr_get && (!attr_get->isUndefined() \|\| !attr_get->isFunction())) return "property descriptor's getter field is neither undefined nor a function";
2441	if(attr_set && (!attr_set->isUndefined() \|\| !attr_set->isFunction())) return "property descriptor's setter field is neither undefined nor a function";
2442	}
2443	if(!child) {
2444	if(!isExtensible()) return "is not extensible";
2445	if(attr_isDataDescriptor) {
2446	child = addChild(Name, attr_value?attr_value:constScriptVar(Undefined), 0);
2447	if(attr_writable) child->setWritable(attr_writable->toBoolean());
2448	} else {
2449	child = addChild(Name, newScriptVarAccessor(context, attr_get, attr_set), SCRIPTVARLINK_WRITABLE);
2450	}
2451	} else {
2452	if(!child->isConfigurable()) {
2453	if(attr_configurable && attr_configurable->toBoolean()) goto cant_redefine;
2454	if(attr_enumerable && attr_enumerable->toBoolean() != child->isEnumerable()) goto cant_redefine;
2455	if(child->getVarPtr()->isAccessor()) {
2456	if(attr_isDataDescriptor) goto cant_redefine;
2457	if(attr_get && attr_get != child->getVarPtr()->findChild(TINYJS_ACCESSOR_GET_VAR)) goto cant_redefine;
2458	if(attr_set && attr_set != child->getVarPtr()->findChild(TINYJS_ACCESSOR_SET_VAR)) goto cant_redefine;
2459	} else if(!attr_isDataDescriptor) goto cant_redefine;
2460	else if(!child->isWritable()) {
2461	if(attr_writable && attr_writable->toBoolean()) goto cant_redefine;
2462	if(attr_value && !attr_value->mathsOp(child, LEX_EQUAL)->toBoolean()) goto cant_redefine;
2463	}
2464	}
2465	if(attr_isDataDescriptor) {
2466	if(child->getVarPtr()->isAccessor()) child->setWritable(false);
2467	child->setVarPtr(attr_value?attr_value:constScriptVar(Undefined));
2468	if(attr_writable) child->setWritable(attr_writable->toBoolean());
2469	} else {
2470	if(child->getVarPtr()->isAccessor()) {
2471	if(!attr_get) attr_get = child->getVarPtr()->findChild(TINYJS_ACCESSOR_GET_VAR);
2472	if(!attr_set) attr_set = child->getVarPtr()->findChild(TINYJS_ACCESSOR_SET_VAR);
2473	}
2474	child->setVarPtr(newScriptVarAccessor(context, attr_get, attr_set));
2475	child->setWritable(true);
2476	}
2477	}
2478	if(attr_enumerable) child->setEnumerable(attr_enumerable->toBoolean());
2479	if(attr_configurable) child->setConfigurable(attr_configurable->toBoolean());
2480	return 0;
2481	cant_redefine:
2482	return "can't redefine non-configurable property";
2483	}
2484
2485	CScriptVarLinkPtr CScriptVar::findChild(const string &childName) {
2486	if(Childs.empty()) return 0;
2487	SCRIPTVAR_CHILDS_it it = lower_bound(Childs.begin(), Childs.end(), childName);
2488	if(it != Childs.end() && (*it)->getName() == childName)
2489	return *it;
2490	return 0;
2491	}
2492
2493	CScriptVarLinkWorkPtr CScriptVar::findChildWithStringChars(const string &childName) {
2494	CScriptVarLinkWorkPtr child = findChild(childName);
2495	if(child) return child;
2496	CScriptVarStringPtr strVar = getRawPrimitive();
2497	uint32_t Idx;
2498	if (strVar && (Idx=isArrayIndex(childName))!=uint32_t(-1) && Idx<strVar->stringLength()) {
2499	int Char = strVar->getChar(Idx);
2500	child(newScriptVar(string(1, (char)Char)), childName, SCRIPTVARLINK_ENUMERABLE);
2501	child.setReferencedOwner(this); // fake referenced Owner
2502	return child;
2503	}
2504	return 0;
2505	}
2506
2507	CScriptVarLinkPtr CScriptVar::findChildInPrototypeChain(const string &childName) {
2508	unsigned int uniqueID = context->getUniqueID();
2509	// Look for links to actual parent classes
2510	CScriptVarPtr object = this;
2511	CScriptVarLinkPtr __proto__;
2512	while( object->getTempraryID() != uniqueID && (__proto__ = object->findChild(TINYJS___PROTO___VAR)) ) {
2513	CScriptVarLinkPtr implementation = __proto__->getVarPtr()->findChild(childName);
2514	if (implementation) return implementation;
2515	object->setTemporaryID(uniqueID); // prevents recursions
2516	object = __proto__;
2517	}
2518	return 0;
2519	}
2520
2521	CScriptVarLinkWorkPtr CScriptVar::findChildWithPrototypeChain(const string &childName) {
2522	CScriptVarLinkWorkPtr child = findChildWithStringChars(childName);
2523	if(child) return child;
2524	child = findChildInPrototypeChain(childName);
2525	if(child) {
2526	child(child->getVarPtr(), child->getName(), child->getFlags()); // recreate implementation
2527	child.setReferencedOwner(this); // fake referenced Owner
2528	}
2529	return child;
2530	}
2531	CScriptVarLinkPtr CScriptVar::findChildByPath(const string &path) {
2532	string::size_type p = path.find('.');
2533	CScriptVarLinkPtr child;
2534	if (p == string::npos)
2535	return findChild(path);
2536	if( (child = findChild(path.substr(0,p))) )
2537	return child->getVarPtr()->findChildByPath(path.substr(p+1));
2538	return 0;
2539	}
2540
2541	CScriptVarLinkPtr CScriptVar::findChildOrCreate(const string &childName/, int varFlags/) {
2542	CScriptVarLinkPtr l = findChild(childName);
2543	if (l) return l;
2544	return addChild(childName, constScriptVar(Undefined));
2545	// return addChild(childName, new CScriptVar(context, TINYJS_BLANK_DATA, varFlags));
2546	}
2547
2548	CScriptVarLinkPtr CScriptVar::findChildOrCreateByPath(const string &path) {
2549	string::size_type p = path.find('.');
2550	if (p == string::npos)
2551	return findChildOrCreate(path);
2552	string childName(path, 0, p);
2553	CScriptVarLinkPtr l = findChild(childName);
2554	if (!l) l = addChild(childName, newScriptVar(Object));
2555	return l->getVarPtr()->findChildOrCreateByPath(path.substr(p+1));
2556	}
2557
2558	void CScriptVar::keys(set<string> &Keys, bool OnlyEnumerable/=true/, uint32_t ID/=0/)
2559	{
2560	setTemporaryID(ID);
2561	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it) {
2562	if(!OnlyEnumerable \|\| (*it)->isEnumerable())
2563	Keys.insert((*it)->getName());
2564	}
2565	CScriptVarStringPtr isStringObj = this->getRawPrimitive();
2566	if(isStringObj) {
2567	uint32_t length = isStringObj->stringLength();
2568	for(uint32_t i=0; i<length; ++i)
2569	Keys.insert(int2string(i));
2570	}
2571	CScriptVarLinkPtr __proto__;
2572	if( ID && (__proto__ = findChild(TINYJS___PROTO___VAR)) && __proto__->getVarPtr()->getTempraryID() != ID )
2573	__proto__->getVarPtr()->keys(Keys, OnlyEnumerable, ID);
2574	}
2575
2576	/// add & remove
2577	CScriptVarLinkPtr CScriptVar::addChild(const string &childName, const CScriptVarPtr &child, int linkFlags /= SCRIPTVARLINK_DEFAULT/) {
2578	CScriptVarLinkPtr link;
2579	SCRIPTVAR_CHILDS_it it = lower_bound(Childs.begin(), Childs.end(), childName);
2580	if(it == Childs.end() \|\| (*it)->getName() != childName) {
2581	link = CScriptVarLinkPtr(child?child:constScriptVar(Undefined), childName, linkFlags);
2582	link->setOwner(this);
2583
2584	Childs.insert(it, 1, link);
2585	#ifdef _DEBUG
2586	} else {
2587	ASSERT(0); // addChild - the child exists
2588	#endif
2589	}
2590	return link;
2591	}
2592	CScriptVarLinkPtr CScriptVar::addChildNoDup(const string &childName, const CScriptVarPtr &child, int linkFlags /= SCRIPTVARLINK_DEFAULT/) {
2593	return addChildOrReplace(childName, child, linkFlags);
2594	}
2595	CScriptVarLinkPtr CScriptVar::addChildOrReplace(const string &childName, const CScriptVarPtr &child, int linkFlags /= SCRIPTVARLINK_DEFAULT/) {
2596	SCRIPTVAR_CHILDS_it it = lower_bound(Childs.begin(), Childs.end(), childName);
2597	if(it == Childs.end() \|\| (*it)->getName() != childName) {
2598	CScriptVarLinkPtr link(child, childName, linkFlags);
2599	link->setOwner(this);
2600	Childs.insert(it, 1, link);
2601	return link;
2602	} else {
2603	(*it)->setVarPtr(child);
2604	return (*it);
2605	}
2606	}
2607
2608	bool CScriptVar::removeLink(CScriptVarLinkPtr &link) {
2609	if (!link) return false;
2610	SCRIPTVAR_CHILDS_it it = lower_bound(Childs.begin(), Childs.end(), link->getName());
2611	if(it != Childs.end() && (*it) == link) {
2612	Childs.erase(it);
2613	#ifdef _DEBUG
2614	} else {
2615	ASSERT(0); // removeLink - the link is not atached to this var
2616	#endif
2617	}
2618	link.clear();
2619	return true;
2620	}
2621	void CScriptVar::removeAllChildren() {
2622	Childs.clear();
2623	}
2624
2625	CScriptVarPtr CScriptVar::getArrayIndex(uint32_t idx) {
2626	CScriptVarLinkPtr link = findChild(int2string(idx));
2627	if (link) return link;
2628	else return constScriptVar(Undefined); // undefined
2629	}
2630
2631	void CScriptVar::setArrayIndex(uint32_t idx, const CScriptVarPtr &value) {
2632	string sIdx = int2string(idx);
2633	CScriptVarLinkPtr link = findChild(sIdx);
2634
2635	if (link) {
2636	link->setVarPtr(value);
2637	} else {
2638	addChild(sIdx, value);
2639	}
2640	}
2641
2642	uint32_t CScriptVar::getArrayLength() {
2643	if (!isArray() \|\| Childs.size()==0) return 0;
2644	return isArrayIndex(Childs.back()->getName())+1;
2645	}
2646
2647	CScriptVarPtr CScriptVar::mathsOp(const CScriptVarPtr &b, int op) {
2648	CScriptResult execute;
2649	return context->mathsOp(execute, this, b, op);
2650	}
2651
2652	void CScriptVar::trace(const string &name) {
2653	string indentStr;
2654	uint32_t uniqueID = context->getUniqueID();
2655	trace(indentStr, uniqueID, name);
2656	}
2657	void CScriptVar::trace(string &indentStr, uint32_t uniqueID, const string &name) {
2658	string indent = " ";
2659	const char *extra="";
2660	if(temporaryID == uniqueID)
2661	extra = " recursion detected";
2662	TRACE("%s'%s' = '%s' %s%s\n",
2663	indentStr.c_str(),
2664	name.c_str(),
2665	toString().c_str(),
2666	getFlagsAsString().c_str(),
2667	extra);
2668	if(temporaryID != uniqueID) {
2669	temporaryID = uniqueID;
2670	indentStr+=indent;
2671	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it) {
2672	if((*it)->isEnumerable())
2673	(it)->getVarPtr()->trace(indentStr, uniqueID, (it)->getName());
2674	}
2675	indentStr = indentStr.substr(0, indentStr.length()-2);
2676	}
2677	}
2678
2679	string CScriptVar::getFlagsAsString() {
2680	string flagstr = "";
2681	if (isFunction()) flagstr = flagstr + "FUNCTION ";
2682	if (isObject()) flagstr = flagstr + "OBJECT ";
2683	if (isArray()) flagstr = flagstr + "ARRAY ";
2684	if (isNative()) flagstr = flagstr + "NATIVE ";
2685	if (isDouble()) flagstr = flagstr + "DOUBLE ";
2686	if (isInt()) flagstr = flagstr + "INTEGER ";
2687	if (isBool()) flagstr = flagstr + "BOOLEAN ";
2688	if (isString()) flagstr = flagstr + "STRING ";
2689	if (isRegExp()) flagstr = flagstr + "REGEXP ";
2690	if (isNaN()) flagstr = flagstr + "NaN ";
2691	if (isInfinity()) flagstr = flagstr + "INFINITY ";
2692	return flagstr;
2693	}
2694
2695	CScriptVar *CScriptVar::ref() {
2696	refs++;
2697	return this;
2698	}
2699	void CScriptVar::unref() {
2700	refs--;
2701	ASSERT(refs>=0); // printf("OMFG, we have unreffed too far!\n");
2702	if (refs==0)
2703	delete this;
2704	}
2705
2706	int CScriptVar::getRefs() {
2707	return refs;
2708	}
2709
2710	void CScriptVar::setTemporaryID_recursive(uint32_t ID) {
2711	if(temporaryID != ID) {
2712	temporaryID = ID;
2713	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it) {
2714	(*it)->getVarPtr()->setTemporaryID_recursive(ID);
2715	}
2716	}
2717	}
2718
2719
2720	//////////////////////////////////////////////////////////////////////////
2721	/// CScriptVarLink
2722	//////////////////////////////////////////////////////////////////////////
2723
2724	CScriptVarLink::CScriptVarLink(const CScriptVarPtr &Var, const string &Name /=TINYJS_TEMP_NAME/, int Flags /=SCRIPTVARLINK_DEFAULT/)
2725	: name(Name), owner(0), flags(Flags), refs(0) {
2726	#if DEBUG_MEMORY
2727	mark_allocated(this);
2728	#endif
2729	var = Var;
2730	}
2731
2732	CScriptVarLink::~CScriptVarLink() {
2733	#if DEBUG_MEMORY
2734	mark_deallocated(this);
2735	#endif
2736	}
2737
2738	CScriptVarLink *CScriptVarLink::ref() {
2739	refs++;
2740	return this;
2741	}
2742	void CScriptVarLink::unref() {
2743	refs--;
2744	ASSERT(refs>=0); // printf("OMFG, we have unreffed too far!\n");
2745	if (refs==0)
2746	delete this;
2747	}
2748
2749
2750	//////////////////////////////////////////////////////////////////////////
2751	/// CScriptVarLinkPtr
2752	//////////////////////////////////////////////////////////////////////////
2753
2754	CScriptVarLinkPtr & CScriptVarLinkPtr::operator()( const CScriptVarPtr &var, const std::string &name /= TINYJS_TEMP_NAME/, int flags /= SCRIPTVARLINK_DEFAULT/ ) {
2755	if(link && link->refs == 1) { // the link is only refered by this
2756	link->name = name;
2757	link->owner = 0;
2758	link->flags = flags;
2759	link->var = var;
2760	} else {
2761	if(link) link->unref();
2762	link = (new CScriptVarLink(var, name, flags))->ref();
2763	}
2764	return *this;
2765	}
2766
2767	CScriptVarLinkWorkPtr CScriptVarLinkPtr::getter() {
2768	return CScriptVarLinkWorkPtr(*this).getter();
2769	}
2770
2771	CScriptVarLinkWorkPtr CScriptVarLinkPtr::getter( CScriptResult &execute ) {
2772	return CScriptVarLinkWorkPtr(*this).getter(execute);
2773	}
2774
2775	CScriptVarLinkWorkPtr CScriptVarLinkPtr::setter( const CScriptVarPtr &Var ) {
2776	return CScriptVarLinkWorkPtr(*this).setter(Var);
2777	}
2778
2779	CScriptVarLinkWorkPtr CScriptVarLinkPtr::setter( CScriptResult &execute, const CScriptVarPtr &Var ) {
2780	return CScriptVarLinkWorkPtr(*this).setter(execute, Var);
2781	}
2782
2783	bool CScriptVarLinkPtr::operator <(const string &rhs) const {
2784	uint32_t lhs_int = isArrayIndex(link->getName());
2785	uint32_t rhs_int = isArrayIndex(rhs);
2786	if(lhs_int==uint32_t(-1)) {
2787	if(rhs_int==uint32_t(-1))
2788	return link->getName() < rhs;
2789	else
2790	return true;
2791	} else if(rhs_int==uint32_t(-1))
2792	return false;
2793	return lhs_int < rhs_int;
2794	}
2795
2796
2797	//////////////////////////////////////////////////////////////////////////
2798	/// CScriptVarLinkWorkPtr
2799	//////////////////////////////////////////////////////////////////////////
2800
2801	CScriptVarLinkWorkPtr CScriptVarLinkWorkPtr::getter() {
2802	if(link && link->getVarPtr()) {
2803	CScriptResult execute;
2804	CScriptVarPtr ret = getter(execute);
2805	execute.cThrow();
2806	return ret;
2807	}
2808	return *this;
2809	}
2810	CScriptVarLinkWorkPtr CScriptVarLinkWorkPtr::getter(CScriptResult &execute) {
2811	if(execute && link && link->getVarPtr() && link->getVarPtr()->isAccessor()) {
2812	const CScriptVarPtr &var = link->getVarPtr();
2813	CScriptVarLinkPtr getter = var->findChild(TINYJS_ACCESSOR_GET_VAR);
2814	if(getter) {
2815	vector<CScriptVarPtr> Params;
2816	ASSERT(getReferencedOwner());
2817	return getter->getVarPtr()->getContext()->callFunction(execute, getter->getVarPtr(), Params, getReferencedOwner());
2818	} else
2819	return var->constScriptVar(Undefined);
2820	} else
2821	return *this;
2822	}
2823	CScriptVarLinkWorkPtr CScriptVarLinkWorkPtr::setter( const CScriptVarPtr &Var ) {
2824	if(link && link->getVarPtr()) {
2825	CScriptResult execute;
2826	CScriptVarPtr ret = setter(execute, Var);
2827	execute.cThrow();
2828	return ret;
2829	}
2830	return *this;
2831	}
2832
2833	CScriptVarLinkWorkPtr CScriptVarLinkWorkPtr::setter( CScriptResult &execute, const CScriptVarPtr &Var ) {
2834	if(execute) {
2835	if(link) {
2836	if(link->getVarPtr() && link->getVarPtr()->isAccessor()) {
2837	const CScriptVarPtr &var = link->getVarPtr();
2838	CScriptVarLinkPtr setter = var->findChild(TINYJS_ACCESSOR_SET_VAR);
2839	if(setter) {
2840	vector<CScriptVarPtr> Params;
2841	Params.push_back(Var);
2842	ASSERT(getReferencedOwner());
2843	setter->getVarPtr()->getContext()->callFunction(execute, setter->getVarPtr(), Params, getReferencedOwner());
2844	}
2845	} else
2846	link->setVarPtr(Var);
2847	}
2848	}
2849	return *this;
2850	}
2851
2852
2853	//////////////////////////////////////////////////////////////////////////
2854	/// CScriptVarPrimitive
2855	//////////////////////////////////////////////////////////////////////////
2856
2857	CScriptVarPrimitive::~CScriptVarPrimitive(){}
2858
2859	bool CScriptVarPrimitive::isPrimitive() { return true; }
2860	CScriptVarPrimitivePtr CScriptVarPrimitive::getRawPrimitive() { return this; }
2861	bool CScriptVarPrimitive::toBoolean() { return false; }
2862	CScriptVarPtr CScriptVarPrimitive::toObject() { return this; }
2863	CScriptVarPtr CScriptVarPrimitive::toString_CallBack( CScriptResult &execute, int radix/=0/ ) {
2864	return newScriptVar(toCString(radix));
2865	}
2866
2867
2868	//////////////////////////////////////////////////////////////////////////
2869	// CScriptVarUndefined
2870	//////////////////////////////////////////////////////////////////////////
2871
2872	declare_dummy_t(Undefined);
2873	CScriptVarUndefined::CScriptVarUndefined(CTinyJS *Context) : CScriptVarPrimitive(Context, Context->objectPrototype) { }
2874	CScriptVarUndefined::~CScriptVarUndefined() {}
2875	CScriptVarPtr CScriptVarUndefined::clone() { return new CScriptVarUndefined(*this); }
2876	bool CScriptVarUndefined::isUndefined() { return true; }
2877
2878	CNumber CScriptVarUndefined::toNumber_Callback() { return NaN; }
2879	string CScriptVarUndefined::toCString(int radix/=0/) { return "undefined"; }
2880	string CScriptVarUndefined::getVarType() { return "undefined"; }
2881
2882
2883	//////////////////////////////////////////////////////////////////////////
2884	// CScriptVarNull
2885	//////////////////////////////////////////////////////////////////////////
2886
2887	declare_dummy_t(Null);
2888	CScriptVarNull::CScriptVarNull(CTinyJS *Context) : CScriptVarPrimitive(Context, Context->objectPrototype) { }
2889	CScriptVarNull::~CScriptVarNull() {}
2890	CScriptVarPtr CScriptVarNull::clone() { return new CScriptVarNull(*this); }
2891	bool CScriptVarNull::isNull() { return true; }
2892
2893	CNumber CScriptVarNull::toNumber_Callback() { return 0; }
2894	string CScriptVarNull::toCString(int radix/=0/) { return "null"; }
2895	string CScriptVarNull::getVarType() { return "null"; }
2896
2897
2898	//////////////////////////////////////////////////////////////////////////
2899	/// CScriptVarString
2900	//////////////////////////////////////////////////////////////////////////
2901
2902	CScriptVarString::CScriptVarString(CTinyJS *Context, const string &Data) : CScriptVarPrimitive(Context, Context->stringPrototype), data(Data) {
2903	addChild("length", newScriptVar(data.size()), SCRIPTVARLINK_CONSTANT);
2904	/*
2905	CScriptVarLinkPtr acc = addChild("length", newScriptVar(Accessor), 0);
2906	CScriptVarFunctionPtr getter(::newScriptVar(Context, this, &CScriptVarString::native_Length, 0));
2907	getter->setFunctionData(new CScriptTokenDataFnc);
2908	acc->getVarPtr()->addChild(TINYJS_ACCESSOR_GET_VAR, getter, 0);
2909	*/
2910	}
2911	CScriptVarString::~CScriptVarString() {}
2912	CScriptVarPtr CScriptVarString::clone() { return new CScriptVarString(*this); }
2913	bool CScriptVarString::isString() { return true; }
2914
2915	bool CScriptVarString::toBoolean() { return data.length()!=0; }
2916	CNumber CScriptVarString::toNumber_Callback() { return data.c_str(); }
2917	string CScriptVarString::toCString(int radix/=0/) { return data; }
2918
2919	string CScriptVarString::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) { return getJSString(data); }
2920	string CScriptVarString::getVarType() { return "string"; }
2921
2922	CScriptVarPtr CScriptVarString::toObject() {
2923	CScriptVarPtr ret = newScriptVar(CScriptVarPrimitivePtr(this), context->stringPrototype);
2924	ret->addChild("length", newScriptVar(data.size()), SCRIPTVARLINK_CONSTANT);
2925	return ret;
2926	}
2927
2928	CScriptVarPtr CScriptVarString::toString_CallBack( CScriptResult &execute, int radix/=0/ ) {
2929	return this;
2930	}
2931
2932	int CScriptVarString::getChar(uint32_t Idx) {
2933	if((string::size_type)Idx >= data.length())
2934	return -1;
2935	else
2936	return (unsigned char)data[Idx];
2937	}
2938
2939
2940	//////////////////////////////////////////////////////////////////////////
2941	/// CNumber
2942	//////////////////////////////////////////////////////////////////////////
2943
2944	NegativeZero_t NegativeZero;
2945	declare_dummy_t(NaN);
2946	Infinity InfinityPositive(1);
2947	Infinity InfinityNegative(-1);
2948	#if 1
2949	static inline bool _isNaN(volatile double Value1, volatile double Value2) {
2950	return !(Value1==Value2);
2951	}
2952
2953	static inline bool isNaN(double Value) {
2954	return _isNaN(&Value, &Value);
2955	}
2956	inline bool isNegZero(double d) {
2957	double x=-0.0;
2958	return memcmp(&d, &x, sizeof(double))==0;
2959	}
2960
2961	CNumber &CNumber::operator=(double Value) {
2962	double integral;
2963	if(isNegZero(Value))
2964	type=tnNULL, Int32=0;
2965	else if(numeric_limits<double>::has_infinity && Value == numeric_limits<double>::infinity())
2966	type=tInfinity, Int32=1;
2967	else if(numeric_limits<double>::has_infinity && Value == -numeric_limits<double>::infinity())
2968	type=tInfinity, Int32=-1;
2969	else if(::isNaN(Value) \|\| Value == numeric_limits<double>::quiet_NaN() \|\| Value == std::numeric_limits<double>::signaling_NaN())
2970	type=tNaN, Int32=0;
2971	else if(modf(Value, &integral)==0.0 && numeric_limits<int32_t>::min()<=integral && integral<=numeric_limits<int32_t>::max())
2972	type=tInt32, Int32=int32_t(integral);
2973	else
2974	type=tDouble, Double=Value;
2975	return *this;
2976	}
2977	CNumber &CNumber::operator=(const char *str) {
2978
2979	while(isWhitespace(*str)) str++;
2980	const char start = str, endptr;
2981	if(str == '-' \|\| str == '+') str++;
2982	if(*str == '0' && ( str[1]=='x' \|\| str[1]=='X'))
2983	parseInt(start, 16, &endptr);
2984	else if(*str == '0' && str[1]>='0' && str[1]<='7')
2985	parseInt(start, 8, &endptr);
2986	else
2987	parseFloat(start, &endptr);
2988	while(isWhitespace(*endptr)) endptr++;
2989	if(*endptr != '\0')
2990	type=tNaN, Int32=0;
2991	return *this;
2992	}
2993	int32_t CNumber::parseInt(const char * str, int32_t radix/=0/, const char *endptr/=0*/) {
2994	type=tInt32, Int32=0;
2995	if(endptr) *endptr = str;
2996	bool stripPrefix = false; //< is true if radix==0 or radix==16
2997	if(radix == 0) {
2998	radix=10;
2999	stripPrefix = true;
3000	} else if(radix < 2 \|\| radix > 36) {
3001	type = tNaN;
3002	return 0;
3003	} else
3004	stripPrefix = radix == 16;
3005	while(isWhitespace(*str)) str++;
3006	int sign=1;
3007	if(*str=='-') sign=-1,str++;
3008	else if(*str=='+') str++;
3009	if(stripPrefix && *str=='0' && (str[1]=='x' \|\| str[1]=='X')) str+=2, radix=16;
3010	else if(stripPrefix && *str=='0' && str[1]>='0' && str[1]<='7') str+=1, radix=8;
3011	int32_t max = 0x7fffffff/radix;
3012	const char *start = str;
3013	for( ; *str; str++) {
3014	if(str >= '0' && str <= '0'-1+radix) Int32 = Int32radix+str-'0';
3015	else if(str>='a' && str<='a'-11+radix) Int32 = Int32radix+str-'a'+10;
3016	else if(str>='A' && str<='A'-11+radix) Int32 = Int32radix+str-'A'+10;
3017	else break;
3018	if(Int32 >= max) {
3019	type=tDouble, Double=double(Int32);
3020	for(str++ ; *str; str++) {
3021	if(str >= '0' && str <= '0'-1+radix) Double = Double radix+str-'0';
3022	else if(str>='a' && str<='a'-11+radix) Double = Double radix+str-'a'+10;
3023	else if(str>='A' && str<='A'-11+radix) Double = Double radix+str-'A'+10;
3024	else break;
3025	}
3026	break;
3027	}
3028	}
3029	if(str == start) {
3030	type= tNaN;
3031	return 0;
3032	}
3033	if(sign<0 && ((type==tInt32 && Int32==0) \|\| (type==tDouble && Double==0.0))) { type=tnNULL,Int32=0; return radix; }
3034	if(type==tInt32) operator=(sign<0 ? -Int32 : Int32);
3035	else operator=(sign<0 ? -Double : Double);
3036	if(endptr) endptr = (char)str;
3037	return radix;
3038	}
3039
3040	void CNumber::parseFloat(const char * str, const char *endptr/=0*/) {
3041	type=tInt32, Int32=0;
3042	if(endptr) *endptr = str;
3043	while(isWhitespace(*str)) str++;
3044	int sign=1;
3045	if(*str=='-') sign=-1,str++;
3046	else if(*str=='+') str++;
3047	if(strncmp(str, "Infinity", 8) == 0) { type=tInfinity, Int32=sign; return; }
3048	double d = strtod(str, (char**)endptr);
3049	operator=(sign>0 ? d : -d);
3050	return;
3051	}
3052
3053	CNumber CNumber::add(const CNumber &Value) const {
3054	if(type==tNaN \|\| Value.type==tNaN)
3055	return CNumber(tNaN);
3056	else if(type==tInfinity \|\| Value.type==tInfinity) {
3057	if(type!=tInfinity)
3058	return Value;
3059	else if(Value.type!=tInfinity \|\| sign()==Value.sign())
3060	return *this;
3061	else
3062	return CNumber(tNaN);
3063	} else if(type==tnNULL)
3064	return Value;
3065	else if(Value.type==tnNULL)
3066	return *this;
3067	else if(type==tDouble \|\| Value.type==tDouble)
3068	return CNumber(toDouble()+Value.toDouble());
3069	else {
3070	int32_t range_max = numeric_limits<int32_t>::max();
3071	int32_t range_min = numeric_limits<int32_t>::min();
3072	if(Int32>0) range_max-=Int32;
3073	else if(Int32<0) range_min-=Int32;
3074	if(range_min<=Value.Int32 && Value.Int32<=range_max)
3075	return CNumber(Int32+Value.Int32);
3076	else
3077	return CNumber(double(Int32)+double(Value.Int32));
3078	}
3079	}
3080
3081	CNumber CNumber::operator-() const {
3082	switch(type) {
3083	case tInt32:
3084	if(Int32==0)
3085	return CNumber(NegativeZero);
3086	case tnNULL:
3087	return CNumber(-Int32);
3088	case tDouble:
3089	return CNumber(-Double);
3090	case tInfinity:
3091	return CNumber(tInfinity, -Int32);
3092	default:
3093	return CNumber(tNaN);
3094	}
3095	}
3096
3097	static inline int bits(uint32_t Value) {
3098	uint32_t b=0, mask=0xFFFF0000UL;
3099	for(int shift=16; shift>0 && Value!=0; shift>>=1, mask>>=shift) {
3100	if(Value & mask) {
3101	b += shift;
3102	Value>>=shift;
3103	}
3104	}
3105	return b;
3106	}
3107	static inline int bits(int32_t Value) {
3108	return bits(uint32_t(Value<0?-Value:Value));
3109	}
3110
3111	CNumber CNumber::multi(const CNumber &Value) const {
3112	if(type==tNaN \|\| Value.type==tNaN)
3113	return CNumber(tNaN);
3114	else if(type==tInfinity \|\| Value.type==tInfinity) {
3115	if(isZero() \|\| Value.isZero())
3116	return CNumber(tNaN);
3117	else
3118	return CNumber(tInfinity, sign()==Value.sign()?1:-1);
3119	} else if(isZero() \|\| Value.isZero()) {
3120	if(sign()==Value.sign())
3121	return CNumber(0);
3122	else
3123	return CNumber(NegativeZero);
3124	} else if(type==tDouble \|\| Value.type==tDouble)
3125	return CNumber(toDouble()*Value.toDouble());
3126	else {
3127	// Int32*Int32
3128	if(bits(Int32)+bits(Value.Int32) <= 29)
3129	return CNumber(Int32*Value.Int32);
3130	else
3131	return CNumber(double(Int32)*double(Value.Int32));
3132	}
3133	}
3134
3135
3136	CNumber CNumber::div( const CNumber &Value ) const {
3137	if(type==tNaN \|\| Value.type==tNaN) return CNumber(tNaN);
3138	int Sign = sign()*Value.sign();
3139	if(type==tInfinity) {
3140	if(Value.type==tInfinity) return CNumber(tNaN);
3141	else return CNumber(tInfinity, Sign);
3142	}
3143	if(Value.type==tInfinity) {
3144	if(Sign<0) return CNumber(NegativeZero);
3145	else return CNumber(0);
3146	} else if(Value.isZero()) {
3147	if(isZero()) return CNumber(tNaN);
3148	else return CNumber(tInfinity, Sign);
3149	} else
3150	return CNumber(toDouble() / Value.toDouble());
3151	}
3152
3153	CNumber CNumber::modulo( const CNumber &Value ) const {
3154	if(type==tNaN \|\| type==tInfinity \|\| Value.type==tNaN \|\| Value.isZero()) return CNumber(tNaN);
3155	if(Value.type==tInfinity) return CNumber(*this);
3156	if(isZero()) return CNumber(0);
3157	if(type==tDouble \|\| Value.type==tDouble) {
3158	double n = toDouble(), d = Value.toDouble(), q;
3159	modf(n/d, &q);
3160	return CNumber(n - (d * q));
3161	} else
3162	return CNumber(Int32 % Value.Int32);
3163	}
3164
3165	CNumber CNumber::round() const {
3166	if(type != tDouble) return CNumber(*this);
3167	if(Double < 0.0 && Double >= -0.5)
3168	return CNumber(NegativeZero);
3169	return CNumber(::floor(Double+0.5));
3170	}
3171
3172	CNumber CNumber::floor() const {
3173	if(type != tDouble) return CNumber(*this);
3174	return CNumber(::floor(Double));
3175	}
3176
3177	CNumber CNumber::ceil() const {
3178	if(type != tDouble) return CNumber(*this);
3179	return CNumber(::ceil(Double));
3180	}
3181
3182	CNumber CNumber::abs() const {
3183	if(sign()<0) return -CNumber(*this);
3184	else return CNumber(*this);
3185	}
3186
3187	CNumber CNumber::shift(const CNumber &Value, bool Right) const {
3188	int32_t lhs = toInt32();
3189	uint32_t rhs = Value.toUInt32() & 0x1F;
3190	return CNumber(Right ? lhs>>rhs : lhs<<rhs);
3191	}
3192
3193	CNumber CNumber::ushift(const CNumber &Value, bool Right) const {
3194	uint32_t lhs = toUInt32();
3195	uint32_t rhs = Value.toUInt32() & 0x1F;
3196	return CNumber(Right ? lhs>>rhs : lhs<<rhs);
3197	}
3198
3199	CNumber CNumber::binary(const CNumber &Value, char Mode) const {
3200	int32_t lhs = toInt32();
3201	int32_t rhs = Value.toInt32();
3202
3203	switch(Mode) {
3204	case '&': lhs&=rhs; break;
3205	case '\|': lhs\|=rhs; break;
3206	case '^': lhs^=rhs; break;
3207	}
3208	return CNumber(lhs);
3209	}
3210
3211
3212	int CNumber::less( const CNumber &Value ) const {
3213	if(type==tNaN \|\| Value.type==tNaN) return 0;
3214	else if(type==tInfinity) {
3215	if(Value.type==tInfinity) return Int32<Value.Int32 ? 1 : -1;
3216	return -Int32;
3217	} else if(Value.type==tInfinity)
3218	return Value.Int32;
3219	else if(isZero() && Value.isZero()) return -1;
3220	else if(type==tDouble \|\| Value.type==tDouble) return toDouble() < Value.toDouble() ? 1 : -1;
3221	return toInt32() < Value.toInt32() ? 1 : -1;
3222	}
3223
3224	bool CNumber::equal( const CNumber &Value ) const {
3225	if(type==tNaN \|\| Value.type==tNaN) return false;
3226	else if(type==tInfinity) {
3227	if(Value.type==tInfinity) return Int32==Value.Int32;
3228	return false;
3229	} else if(Value.type==tInfinity)
3230	return false;
3231	else if(isZero() && Value.isZero()) return true;
3232	else if(type==tDouble \|\| Value.type==tDouble) return toDouble() == Value.toDouble();
3233	return toInt32() == Value.toInt32();
3234	}
3235
3236	bool CNumber::isZero() const
3237	{
3238	switch(type) {
3239	case tInt32:
3240	return Int32==0;
3241	case tnNULL:
3242	return true;
3243	case tDouble:
3244	return Double==0.0;
3245	default:
3246	return false;
3247	}
3248	}
3249
3250	bool CNumber::isInteger() const
3251	{
3252	double integral;
3253	switch(type) {
3254	case tInt32:
3255	case tnNULL:
3256	return true;
3257	case tDouble:
3258	return modf(Double, &integral)==0.0;
3259	default:
3260	return false;
3261	}
3262	}
3263
3264	int CNumber::sign() const {
3265	switch(type) {
3266	case tInt32:
3267	case tInfinity:
3268	return Int32<0?-1:1;
3269	case tnNULL:
3270	return -1;
3271	case tDouble:
3272	return Double<0.0?-1:1;
3273	default:
3274	return 1;
3275	}
3276	}
3277	char *tiny_ltoa(int32_t val, unsigned radix) {
3278	char buf, buf_end, p, firstdig, temp;
3279	unsigned digval;
3280
3281	buf = (char*)malloc(64);
3282	if(!buf) return 0;
3283	buf_end = buf+64-1; // -1 for '\0'
3284
3285	p = buf;
3286	if (val < 0) {
3287	*p++ = '-';
3288	val = -val;
3289	}
3290
3291	do {
3292	digval = (unsigned) (val % radix);
3293	val /= radix;
3294	*p++ = (char) (digval + (digval > 9 ? ('a'-10) : '0'));
3295	if(p==buf_end) {
3296	char new_buf = (char )realloc(buf, buf_end-buf+16+1); // for '\0'
3297	if(!new_buf) { free(buf); return 0; }
3298	p = new_buf + (buf_end - buf);
3299	buf_end = p + 16;
3300	buf = new_buf;
3301	}
3302	} while (val > 0);
3303
3304	// We now have the digit of the number in the buffer, but in reverse
3305	// order. Thus we reverse them now.
3306	*p-- = '\0';
3307	firstdig = buf;
3308	if(*firstdig=='-') firstdig++;
3309	do {
3310	temp = *p;
3311	p = firstdig;
3312	*firstdig = temp;
3313	p--;
3314	firstdig++;
3315	} while (firstdig < p);
3316	return buf;
3317	}
3318
3319	static char *tiny_dtoa(double val, unsigned radix) {
3320	char buf, buf_end, *p, temp;
3321	unsigned digval;
3322
3323	buf = (char*)malloc(64);
3324	if(!buf) return 0;
3325	buf_end = buf+64-2; // -1 for '.' , -1 for '\0'
3326
3327	p = buf;
3328	if (val < 0.0) {
3329	*p++ = '-';
3330	val = -val;
3331	}
3332
3333	double val_1 = floor(val);
3334	double val_2 = val - val_1;
3335
3336
3337	do {
3338	double tmp = val_1 / radix;
3339	val_1 = floor(tmp);
3340	digval = (unsigned)((tmp - val_1) * radix);
3341
3342	*p++ = (char) (digval + (digval > 9 ? ('a'-10) : '0'));
3343	if(p==buf_end) {
3344	char new_buf = (char )realloc(buf, buf_end-buf+16+2); // +2 for '.' + '\0'
3345	if(!new_buf) { free(buf); return 0; }
3346	p = new_buf + (buf_end - buf);
3347	buf_end = p + 16;
3348	buf = new_buf;
3349	}
3350	} while (val_1 > 0.0);
3351
3352	// We now have the digit of the number in the buffer, but in reverse
3353	// order. Thus we reverse them now.
3354	char *p1 = buf;
3355	char *p2 = p-1;
3356	do {
3357	temp = *p2;
3358	p2-- = p1;
3359	*p1++ = temp;
3360	} while (p1 < p2);
3361
3362	if(val_2) {
3363	*p++ = '.';
3364	do {
3365	val_2 *= radix;
3366	digval = (unsigned)(val_2);
3367	val_2 -= digval;
3368
3369	*p++ = (char) (digval + (digval > 9 ? ('a'-10) : '0'));
3370	if(p==buf_end) {
3371	char new_buf = (char )realloc(buf, buf_end-buf+16);
3372	if(!new_buf) { free(buf); return 0; }
3373	p = new_buf + (buf_end - buf);
3374	buf_end = p + 16;
3375	buf = new_buf;
3376	}
3377	} while (val_2 > 0.0);
3378
3379	}
3380	*p = '\0';
3381	return buf;
3382	}
3383	std::string CNumber::toString( uint32_t Radix/=10/ ) const {
3384	char *str;
3385	if(2 > Radix \|\| Radix > 36)
3386	Radix = 10; // todo error;
3387	switch(type) {
3388	case tInt32:
3389	if( (str = tiny_ltoa(Int32, Radix)) ) {
3390	string ret(str); free(str);
3391	return ret;
3392	}
3393	break;
3394	case tnNULL:
3395	return "0";
3396	case tDouble:
3397	if(Radix==10) {
3398	ostringstream str;
3399	str.unsetf(ios::floatfield);
3400	#if (defined(_MSC_VER) && _MSC_VER >= 1600) \|\| __cplusplus >= 201103L
3401	str.precision(numeric_limits<double>::max_digits10);
3402	#else
3403	str.precision(numeric_limits<double>::digits10+2);
3404	#endif
3405	str << Double;
3406	return str.str();
3407	} else if( (str = tiny_dtoa(Double, Radix)) ) {
3408	string ret(str); free(str);
3409	return ret;
3410	}
3411	break;
3412	case tInfinity:
3413	return Int32<0?"-Infinity":"Infinity";
3414	case tNaN:
3415	return "NaN";
3416	}
3417	return "";
3418	}
3419
3420	double CNumber::toDouble() const
3421	{
3422	switch(type) {
3423	case tnNULL:
3424	return -0.0;
3425	case tInt32:
3426	return double(Int32);
3427	case tDouble:
3428	return Double;
3429	case tNaN:
3430	return std::numeric_limits<double>::quiet_NaN();
3431	case tInfinity:
3432	return Int32<0 ? -std::numeric_limits<double>::infinity():std::numeric_limits<double>::infinity();
3433	}
3434	return 0.0;
3435	}
3436
3437	#endif
3438
3439
3440	//////////////////////////////////////////////////////////////////////////
3441	/// CScriptVarNumber
3442	//////////////////////////////////////////////////////////////////////////
3443
3444	CScriptVarNumber::CScriptVarNumber(CTinyJS *Context, const CNumber &Data) : CScriptVarPrimitive(Context, Context->numberPrototype), data(Data) {}
3445	CScriptVarNumber::~CScriptVarNumber() {}
3446	CScriptVarPtr CScriptVarNumber::clone() { return new CScriptVarNumber(*this); }
3447	bool CScriptVarNumber::isNumber() { return true; }
3448	bool CScriptVarNumber::isInt() { return data.isInt32(); }
3449	bool CScriptVarNumber::isDouble() { return data.isDouble(); }
3450	bool CScriptVarNumber::isRealNumber() { return isInt() \|\| isDouble(); }
3451	bool CScriptVarNumber::isNaN() { return data.isNaN(); }
3452	int CScriptVarNumber::isInfinity() { return data.isInfinity(); }
3453
3454	bool CScriptVarNumber::toBoolean() { return data.toBoolean(); }
3455	CNumber CScriptVarNumber::toNumber_Callback() { return data; }
3456	string CScriptVarNumber::toCString(int radix/=0/) { return data.toString(radix); }
3457
3458	string CScriptVarNumber::getVarType() { return "number"; }
3459
3460	CScriptVarPtr CScriptVarNumber::toObject() { return newScriptVar(CScriptVarPrimitivePtr(this), context->numberPrototype); }
3461	inline define_newScriptVar_Fnc(Number, CTinyJS *Context, const CNumber &Obj) {
3462	if(!Obj.isInt32() && !Obj.isDouble()) {
3463	if(Obj.isNaN()) return Context->constScriptVar(NaN);
3464	if(Obj.isInfinity()) return Context->constScriptVar(Infinity(Obj.sign()));
3465	if(Obj.isNegativeZero()) return Context->constScriptVar(NegativeZero);
3466	}
3467	return new CScriptVarNumber(Context, Obj);
3468	}
3469
3470
3471	//////////////////////////////////////////////////////////////////////////
3472	// CScriptVarBool
3473	//////////////////////////////////////////////////////////////////////////
3474
3475	CScriptVarBool::CScriptVarBool(CTinyJS *Context, bool Data) : CScriptVarPrimitive(Context, Context->booleanPrototype), data(Data) {}
3476	CScriptVarBool::~CScriptVarBool() {}
3477	CScriptVarPtr CScriptVarBool::clone() { return new CScriptVarBool(*this); }
3478	bool CScriptVarBool::isBool() { return true; }
3479
3480	bool CScriptVarBool::toBoolean() { return data; }
3481	CNumber CScriptVarBool::toNumber_Callback() { return data?1:0; }
3482	string CScriptVarBool::toCString(int radix/=0/) { return data ? "true" : "false"; }
3483
3484	string CScriptVarBool::getVarType() { return "boolean"; }
3485
3486	CScriptVarPtr CScriptVarBool::toObject() { return newScriptVar(CScriptVarPrimitivePtr(this), context->booleanPrototype); }
3487
3488	//////////////////////////////////////////////////////////////////////////
3489	/// CScriptVarObject
3490	//////////////////////////////////////////////////////////////////////////
3491
3492	declare_dummy_t(Object);
3493	declare_dummy_t(StopIteration);
3494	CScriptVarObject::CScriptVarObject(CTinyJS *Context) : CScriptVar(Context, Context->objectPrototype) { }
3495	CScriptVarObject::~CScriptVarObject() {}
3496	CScriptVarPtr CScriptVarObject::clone() { return new CScriptVarObject(*this); }
3497	CScriptVarPrimitivePtr CScriptVarObject::getRawPrimitive() { return value; }
3498	bool CScriptVarObject::isObject() { return true; }
3499
3500	string CScriptVarObject::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) {
3501	getParsableStringRecursionsCheck();
3502	string destination;
3503	const char *nl = indent.size() ? "\n" : " ";
3504	const char *comma = "";
3505	destination.append("{");
3506	if(Childs.size()) {
3507	string new_indentString = indentString + indent;
3508	for(SCRIPTVAR_CHILDS_it it = Childs.begin(); it != Childs.end(); ++it) {
3509	if((*it)->isEnumerable()) {
3510	destination.append(comma); comma=",";
3511	destination.append(nl).append(new_indentString).append(getIDString((*it)->getName()));
3512	destination.append(" : ");
3513	destination.append((*it)->getVarPtr()->getParsableString(new_indentString, indent, uniqueID, hasRecursion));
3514	}
3515	}
3516	destination.append(nl).append(indentString);
3517	}
3518	destination.append("}");
3519	return destination;
3520	}
3521	string CScriptVarObject::getVarType() { return "object"; }
3522
3523	CScriptVarPtr CScriptVarObject::toObject() { return this; }
3524
3525	CScriptVarPtr CScriptVarObject::valueOf_CallBack() {
3526	if(value)
3527	return value->valueOf_CallBack();
3528	return CScriptVar::valueOf_CallBack();
3529	}
3530	CScriptVarPtr CScriptVarObject::toString_CallBack(CScriptResult &execute, int radix) {
3531	if(value)
3532	return value->toString_CallBack(execute, radix);
3533	return newScriptVar("[object Object]");
3534	};
3535
3536	void CScriptVarObject::setTemporaryID_recursive( uint32_t ID ) {
3537	CScriptVar::setTemporaryID_recursive(ID);
3538	if(value) value->setTemporaryID_recursive(ID);
3539	}
3540
3541
3542	//////////////////////////////////////////////////////////////////////////
3543	/// CScriptVarError
3544	//////////////////////////////////////////////////////////////////////////
3545
3546	const char *ERROR_NAME[] = {"Error", "EvalError", "RangeError", "ReferenceError", "SyntaxError", "TypeError"};
3547
3548	CScriptVarError::CScriptVarError(CTinyJS Context, ERROR_TYPES type, const char message, const char *file, int line, int column) : CScriptVarObject(Context, Context->getErrorPrototype(type)) {
3549	if(message && *message) addChild("message", newScriptVar(message));
3550	if(file && *file) addChild("fileName", newScriptVar(file));
3551	if(line>=0) addChild("lineNumber", newScriptVar(line+1));
3552	if(column>=0) addChild("column", newScriptVar(column+1));
3553	}
3554
3555	CScriptVarError::~CScriptVarError() {}
3556	CScriptVarPtr CScriptVarError::clone() { return new CScriptVarError(*this); }
3557	bool CScriptVarError::isError() { return true; }
3558
3559	CScriptVarPtr CScriptVarError::toString_CallBack(CScriptResult &execute, int radix) {
3560	CScriptVarLinkPtr link;
3561	string name = ERROR_NAME[Error];
3562	link = findChildWithPrototypeChain("name"); if(link) name = link->toString(execute);
3563	string message; link = findChildWithPrototypeChain("message"); if(link) message = link->toString(execute);
3564	string fileName; link = findChildWithPrototypeChain("fileName"); if(link) fileName = link->toString(execute);
3565	int lineNumber=-1; link = findChildWithPrototypeChain("lineNumber"); if(link) lineNumber = link->toNumber().toInt32();
3566	int column=-1; link = findChildWithPrototypeChain("column"); if(link) column = link->toNumber().toInt32();
3567	ostringstream msg;
3568	msg << name << ": " << message;
3569	if(lineNumber >= 0) msg << " at Line:" << lineNumber+1;
3570	if(column >=0) msg << " Column:" << column+1;
3571	if(fileName.length()) msg << " in " << fileName;
3572	return newScriptVar(msg.str());
3573	}
3574
3575	CScriptException *CScriptVarError::toCScriptException()
3576	{
3577	CScriptVarLinkPtr link;
3578	string name = ERROR_NAME[Error];
3579	link = findChildWithPrototypeChain("name"); if(link) name = link->toString();
3580	int ErrorCode;
3581	for(ErrorCode=(sizeof(ERROR_NAME)/sizeof(ERROR_NAME[0]))-1; ErrorCode>0; ErrorCode--) {
3582	if(name == ERROR_NAME[ErrorCode]) break;
3583	}
3584	string message; link = findChildWithPrototypeChain("message"); if(link) message = link->toString();
3585	string fileName; link = findChildWithPrototypeChain("fileName"); if(link) fileName = link->toString();
3586	int lineNumber=-1; link = findChildWithPrototypeChain("lineNumber"); if(link) lineNumber = link->toNumber().toInt32();
3587	int column=-1; link = findChildWithPrototypeChain("column"); if(link) column = link->toNumber().toInt32();
3588	return new CScriptException((enum ERROR_TYPES)ErrorCode, message, fileName, lineNumber, column);
3589	}
3590
3591
3592	//////////////////////////////////////////////////////////////////////////
3593	// CScriptVarArray
3594	//////////////////////////////////////////////////////////////////////////
3595
3596	declare_dummy_t(Array);
3597	CScriptVarArray::CScriptVarArray(CTinyJS *Context) : CScriptVarObject(Context, Context->arrayPrototype) {
3598	CScriptVarLinkPtr acc = addChild("length", newScriptVar(Accessor), 0);
3599	CScriptVarFunctionPtr getter(::newScriptVar(Context, this, &CScriptVarArray::native_Length, 0));
3600	getter->setFunctionData(new CScriptTokenDataFnc);
3601	acc->getVarPtr()->addChild(TINYJS_ACCESSOR_GET_VAR, getter, 0);
3602	}
3603
3604	CScriptVarArray::~CScriptVarArray() {}
3605	CScriptVarPtr CScriptVarArray::clone() { return new CScriptVarArray(*this); }
3606	bool CScriptVarArray::isArray() { return true; }
3607	string CScriptVarArray::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) {
3608	getParsableStringRecursionsCheck();
3609	string destination;
3610	const char *nl = indent.size() ? "\n" : " ";
3611	const char *comma = "";
3612	destination.append("[");
3613	int len = getArrayLength();
3614	if(len) {
3615	string new_indentString = indentString + indent;
3616	for (int i=0;i<len;i++) {
3617	destination.append(comma); comma = ",";
3618	destination.append(nl).append(new_indentString).append(getArrayIndex(i)->getParsableString(new_indentString, indent, uniqueID, hasRecursion));
3619	}
3620	destination.append(nl).append(indentString);
3621	}
3622	destination.append("]");
3623	return destination;
3624	}
3625	CScriptVarPtr CScriptVarArray::toString_CallBack( CScriptResult &execute, int radix/=0/ ) {
3626	ostringstream destination;
3627	int len = getArrayLength();
3628	for (int i=0;i<len;i++) {
3629	destination << getArrayIndex(i)->toString(execute);
3630	if (i<len-1) destination << ", ";
3631	}
3632	return newScriptVar(destination.str());
3633
3634	}
3635
3636	void CScriptVarArray::native_Length(const CFunctionsScopePtr &c, void *data) {
3637	c->setReturnVar(newScriptVar(c->getArgument("this")->getArrayLength()));
3638	}
3639
3640
3641	//////////////////////////////////////////////////////////////////////////
3642	/// CScriptVarRegExp
3643	//////////////////////////////////////////////////////////////////////////
3644
3645	#ifndef NO_REGEXP
3646
3647	CScriptVarRegExp::CScriptVarRegExp(CTinyJS *Context, const string &Regexp, const string &Flags) : CScriptVarObject(Context, Context->regexpPrototype), regexp(Regexp), flags(Flags) {
3648	addChild("global", ::newScriptVarAccessor<CScriptVarRegExp>(Context, this, &CScriptVarRegExp::native_Global, 0, 0, 0), 0);
3649	addChild("ignoreCase", ::newScriptVarAccessor<CScriptVarRegExp>(Context, this, &CScriptVarRegExp::native_IgnoreCase, 0, 0, 0), 0);
3650	addChild("multiline", ::newScriptVarAccessor<CScriptVarRegExp>(Context, this, &CScriptVarRegExp::native_Multiline, 0, 0, 0), 0);
3651	addChild("sticky", ::newScriptVarAccessor<CScriptVarRegExp>(Context, this, &CScriptVarRegExp::native_Sticky, 0, 0, 0), 0);
3652	addChild("regexp", ::newScriptVarAccessor<CScriptVarRegExp>(Context, this, &CScriptVarRegExp::native_Source, 0, 0, 0), 0);
3653	addChild("lastIndex", newScriptVar(0));
3654	}
3655	CScriptVarRegExp::~CScriptVarRegExp() {}
3656	CScriptVarPtr CScriptVarRegExp::clone() { return new CScriptVarRegExp(*this); }
3657	bool CScriptVarRegExp::isRegExp() { return true; }
3658	//int CScriptVarRegExp::getInt() {return strtol(regexp.c_str(),0,0); }
3659	//bool CScriptVarRegExp::getBool() {return regexp.length()!=0;}
3660	//double CScriptVarRegExp::getDouble() {return strtod(regexp.c_str(),0);}
3661	//string CScriptVarRegExp::getString() { return "/"+regexp+"/"+flags; }
3662	//string CScriptVarRegExp::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) { return getString(); }
3663	CScriptVarPtr CScriptVarRegExp::toString_CallBack(CScriptResult &execute, int radix) {
3664	return newScriptVar("/"+regexp+"/"+flags);
3665	}
3666	void CScriptVarRegExp::native_Global(const CFunctionsScopePtr &c, void *data) {
3667	c->setReturnVar(constScriptVar(Global()));
3668	}
3669	void CScriptVarRegExp::native_IgnoreCase(const CFunctionsScopePtr &c, void *data) {
3670	c->setReturnVar(constScriptVar(IgnoreCase()));
3671	}
3672	void CScriptVarRegExp::native_Multiline(const CFunctionsScopePtr &c, void *data) {
3673	c->setReturnVar(constScriptVar(Multiline()));
3674	}
3675	void CScriptVarRegExp::native_Sticky(const CFunctionsScopePtr &c, void *data) {
3676	c->setReturnVar(constScriptVar(Sticky()));
3677	}
3678	void CScriptVarRegExp::native_Source(const CFunctionsScopePtr &c, void *data) {
3679	c->setReturnVar(newScriptVar(regexp));
3680	}
3681	unsigned int CScriptVarRegExp::LastIndex() {
3682	CScriptVarPtr lastIndex = findChild("lastIndex");
3683	if(lastIndex) return lastIndex->toNumber().toInt32();
3684	return 0;
3685	}
3686	void CScriptVarRegExp::LastIndex(unsigned int Idx) {
3687	addChildOrReplace("lastIndex", newScriptVar((int)Idx));
3688	}
3689
3690	CScriptVarPtr CScriptVarRegExp::exec( const string &Input, bool Test /= false/ )
3691	{
3692	regex::flag_type flags = regex_constants::ECMAScript;
3693	if(IgnoreCase()) flags \|= regex_constants::icase;
3694	bool global = Global(), sticky = Sticky();
3695	unsigned int lastIndex = LastIndex();
3696	int offset = 0;
3697	if(global \|\| sticky) {
3698	if(lastIndex > Input.length()) goto failed;
3699	offset=lastIndex;
3700	}
3701	{
3702	regex_constants::match_flag_type mflag = sticky?regex_constants::match_continuous:regex_constants::match_default;
3703	if(offset) mflag \|= regex_constants::match_prev_avail;
3704	smatch match;
3705	if(regex_search(Input.begin()+offset, Input.end(), match, regex(regexp, flags), mflag) ) {
3706	LastIndex(offset+match.position()+match.str().length());
3707	if(Test) return constScriptVar(true);
3708
3709	CScriptVarArrayPtr retVar = newScriptVar(Array);
3710	retVar->addChild("input", newScriptVar(Input));
3711	retVar->addChild("index", newScriptVar(match.position()));
3712	for(smatch::size_type idx=0; idx<match.size(); idx++)
3713	retVar->addChild(int2string(idx), newScriptVar(match[idx].str()));
3714	return retVar;
3715	}
3716	}
3717	failed:
3718	if(global \|\| sticky)
3719	LastIndex(0);
3720	if(Test) return constScriptVar(false);
3721	return constScriptVar(Null);
3722	}
3723
3724	const char * CScriptVarRegExp::ErrorStr( int Error )
3725	{
3726	switch(Error) {
3727	case regex_constants::error_badbrace: return "the expression contained an invalid count in a { } expression";
3728	case regex_constants::error_badrepeat: return "a repeat expression (one of '*', '?', '+', '{' in most contexts) was not preceded by an expression";
3729	case regex_constants::error_brace: return "the expression contained an unmatched '{' or '}'";
3730	case regex_constants::error_brack: return "the expression contained an unmatched '[' or ']'";
3731	case regex_constants::error_collate: return "the expression contained an invalid collating element name";
3732	case regex_constants::error_complexity: return "an attempted match failed because it was too complex";
3733	case regex_constants::error_ctype: return "the expression contained an invalid character class name";
3734	case regex_constants::error_escape: return "the expression contained an invalid escape sequence";
3735	case regex_constants::error_paren: return "the expression contained an unmatched '(' or ')'";
3736	case regex_constants::error_range: return "the expression contained an invalid character range specifier";
3737	case regex_constants::error_space: return "parsing a regular expression failed because there were not enough resources available";
3738	case regex_constants::error_stack: return "an attempted match failed because there was not enough memory available";
3739	case regex_constants::error_backref: return "the expression contained an invalid back reference";
3740	default: return "";
3741	}
3742	}
3743
3744	#endif /* NO_REGEXP */
3745
3746
3747	//////////////////////////////////////////////////////////////////////////
3748	/// CScriptVarDefaultIterator
3749	//////////////////////////////////////////////////////////////////////////
3750
3751	//declare_dummy_t(DefaultIterator);
3752	CScriptVarDefaultIterator::CScriptVarDefaultIterator(CTinyJS *Context, const CScriptVarPtr &Object, int Mode)
3753	: CScriptVarObject(Context, Context->iteratorPrototype), mode(Mode), object(Object) {
3754	object->keys(keys, true);
3755	pos = keys.begin();
3756	addChild("next", ::newScriptVar(context, this, &CScriptVarDefaultIterator::native_next, 0));
3757	}
3758	CScriptVarDefaultIterator::~CScriptVarDefaultIterator() {}
3759	CScriptVarPtr CScriptVarDefaultIterator::clone() { return new CScriptVarDefaultIterator(*this); }
3760	bool CScriptVarDefaultIterator::isIterator() {return true;}
3761	void CScriptVarDefaultIterator::native_next(const CFunctionsScopePtr &c, void *data) {
3762	if(pos==keys.end()) throw constScriptVar(StopIteration);
3763	CScriptVarPtr ret, ret0, ret1;
3764	if(mode&1) ret0 = newScriptVar(*pos);
3765	if(mode&2) ret1 = object->findChildWithStringChars(*pos);
3766	pos++;
3767	if(mode==3) {
3768	ret = newScriptVar(Array);
3769	ret->setArrayIndex(0, ret0);
3770	ret->setArrayIndex(1, ret1);
3771	} else if(mode==1)
3772	ret = ret0;
3773	else
3774	ret = ret1;
3775	c->setReturnVar(ret);
3776	}
3777
3778	//////////////////////////////////////////////////////////////////////////
3779	// CScriptVarFunction
3780	//////////////////////////////////////////////////////////////////////////
3781
3782	CScriptVarFunction::CScriptVarFunction(CTinyJS Context, CScriptTokenDataFnc Data) : CScriptVarObject(Context, Context->functionPrototype), data(0) {
3783	setFunctionData(Data);
3784	}
3785	CScriptVarFunction::~CScriptVarFunction() { setFunctionData(0); }
3786	CScriptVarPtr CScriptVarFunction::clone() { return new CScriptVarFunction(*this); }
3787	bool CScriptVarFunction::isObject() { return true; }
3788	bool CScriptVarFunction::isFunction() { return true; }
3789	bool CScriptVarFunction::isPrimitive() { return false; }
3790
3791	//string CScriptVarFunction::getString() {return "[ Function ]";}
3792	string CScriptVarFunction::getVarType() { return "function"; }
3793	string CScriptVarFunction::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) {
3794	getParsableStringRecursionsCheck();
3795	string destination;
3796	destination.append("function ").append(data->name);
3797	// get list of arguments
3798	destination.append(data->getArgumentsString());
3799
3800	if(isNative() \|\| isBounded())
3801	destination.append("{ [native code] }");
3802	else {
3803	destination.append(CScriptToken::getParsableString(data->body, indentString, indent));
3804	if(!data->body.size() \|\| data->body.front().token != '{')
3805	destination.append(";");
3806	}
3807	return destination;
3808	}
3809
3810	CScriptVarPtr CScriptVarFunction::toString_CallBack(CScriptResult &execute, int radix){
3811	bool hasRecursion;
3812	return newScriptVar(getParsableString("", " ", 0, hasRecursion));
3813	}
3814
3815	CScriptTokenDataFnc *CScriptVarFunction::getFunctionData() { return data; }
3816
3817	void CScriptVarFunction::setFunctionData(CScriptTokenDataFnc *Data) {
3818	if(data) { data->unref(); data = 0; }
3819	if(Data) {
3820	data = Data; data->ref();
3821	addChildOrReplace("length", newScriptVar((int)data->arguments.size()), 0);
3822	// can not add "name" here because name is a StingVar with length as getter
3823	// length-getter is a function with a function name -> endless recursion
3824	//addChildNoDup("name", newScriptVar(data->name), 0);
3825	}
3826	}
3827
3828
3829	//////////////////////////////////////////////////////////////////////////
3830	/// CScriptVarFunctionBounded
3831	//////////////////////////////////////////////////////////////////////////
3832
3833	CScriptVarFunctionBounded::CScriptVarFunctionBounded(CScriptVarFunctionPtr BoundedFunction, CScriptVarPtr BoundedThis, const std::vector<CScriptVarPtr> &BoundedArguments)
3834	: CScriptVarFunction(BoundedFunction->getContext(), new CScriptTokenDataFnc) ,
3835	boundedFunction(BoundedFunction),
3836	boundedThis(BoundedThis),
3837	boundedArguments(BoundedArguments) {
3838	getFunctionData()->name = BoundedFunction->getFunctionData()->name;
3839	}
3840	CScriptVarFunctionBounded::~CScriptVarFunctionBounded(){}
3841	CScriptVarPtr CScriptVarFunctionBounded::clone() { return new CScriptVarFunctionBounded(*this); }
3842	bool CScriptVarFunctionBounded::isBounded() { return true; }
3843	void CScriptVarFunctionBounded::setTemporaryID_recursive( uint32_t ID ) {
3844	CScriptVarFunction::setTemporaryID_recursive(ID);
3845	boundedThis->setTemporaryID_recursive(ID);
3846	for(vector<CScriptVarPtr>::iterator it=boundedArguments.begin(); it!=boundedArguments.end(); ++it)
3847	(*it)->setTemporaryID_recursive(ID);
3848	}
3849
3850	CScriptVarPtr CScriptVarFunctionBounded::callFunction( CScriptResult &execute, vector<CScriptVarPtr> &Arguments, const CScriptVarPtr &This, CScriptVarPtr newThis/=0*/ )
3851	{
3852	vector<CScriptVarPtr> newArgs=boundedArguments;
3853	newArgs.insert(newArgs.end(), Arguments.begin(), Arguments.end());
3854	return context->callFunction(execute, boundedFunction, newArgs, newThis ? This : boundedThis, newThis);
3855	}
3856
3857
3858	//////////////////////////////////////////////////////////////////////////
3859	/// CScriptVarFunctionNative
3860	//////////////////////////////////////////////////////////////////////////
3861
3862	CScriptVarFunctionNative::~CScriptVarFunctionNative() {}
3863	bool CScriptVarFunctionNative::isNative() { return true; }
3864
3865
3866	//////////////////////////////////////////////////////////////////////////
3867	/// CScriptVarFunctionNativeCallback
3868	//////////////////////////////////////////////////////////////////////////
3869
3870	CScriptVarFunctionNativeCallback::~CScriptVarFunctionNativeCallback() {}
3871	CScriptVarPtr CScriptVarFunctionNativeCallback::clone() { return new CScriptVarFunctionNativeCallback(*this); }
3872	void CScriptVarFunctionNativeCallback::callFunction(const CFunctionsScopePtr &c) { jsCallback(c, jsUserData); }
3873
3874
3875	//////////////////////////////////////////////////////////////////////////
3876	/// CScriptVarAccessor
3877	//////////////////////////////////////////////////////////////////////////
3878
3879	declare_dummy_t(Accessor);
3880	CScriptVarAccessor::CScriptVarAccessor(CTinyJS *Context) : CScriptVarObject(Context, Context->objectPrototype) { }
3881	CScriptVarAccessor::CScriptVarAccessor(CTinyJS Context, JSCallback getterFnc, void getterData, JSCallback setterFnc, void *setterData)
3882	: CScriptVarObject(Context)
3883	{
3884	if(getterFnc)
3885	addChild(TINYJS_ACCESSOR_GET_VAR, ::newScriptVar(Context, getterFnc, getterData), 0);
3886	if(setterFnc)
3887	addChild(TINYJS_ACCESSOR_SET_VAR, ::newScriptVar(Context, setterFnc, setterData), 0);
3888	}
3889
3890	CScriptVarAccessor::CScriptVarAccessor( CTinyJS *Context, const CScriptVarFunctionPtr &getter, const CScriptVarFunctionPtr &setter) : CScriptVarObject(Context, Context->objectPrototype) {
3891	if(getter)
3892	addChild(TINYJS_ACCESSOR_GET_VAR, getter, 0);
3893	if(setter)
3894	addChild(TINYJS_ACCESSOR_SET_VAR, setter, 0);
3895	}
3896
3897	CScriptVarAccessor::~CScriptVarAccessor() {}
3898	CScriptVarPtr CScriptVarAccessor::clone() { return new CScriptVarAccessor(*this); }
3899	bool CScriptVarAccessor::isAccessor() { return true; }
3900	bool CScriptVarAccessor::isPrimitive() { return false; }
3901	string CScriptVarAccessor::getParsableString(const string &indentString, const string &indent, uint32_t uniqueID, bool &hasRecursion) {
3902	return "";
3903	}
3904	string CScriptVarAccessor::getVarType() { return "accessor"; }
3905
3906
3907	//////////////////////////////////////////////////////////////////////////
3908	/// CScriptVarScope
3909	//////////////////////////////////////////////////////////////////////////
3910
3911	declare_dummy_t(Scope);
3912	CScriptVarScope::~CScriptVarScope() {}
3913	CScriptVarPtr CScriptVarScope::clone() { return CScriptVarPtr(); }
3914	bool CScriptVarScope::isObject() { return false; }
3915	CScriptVarPtr CScriptVarScope::scopeVar() { return this; } ///< to create var like: var a = ...
3916	CScriptVarPtr CScriptVarScope::scopeLet() { return this; } ///< to create var like: let a = ...
3917	CScriptVarLinkWorkPtr CScriptVarScope::findInScopes(const string &childName) {
3918	return CScriptVar::findChild(childName);
3919	}
3920	CScriptVarScopePtr CScriptVarScope::getParent() { return CScriptVarScopePtr(); } ///< no Parent
3921
3922
3923	//////////////////////////////////////////////////////////////////////////
3924	/// CScriptVarScopeFnc
3925	//////////////////////////////////////////////////////////////////////////
3926
3927	declare_dummy_t(ScopeFnc);
3928	CScriptVarScopeFnc::~CScriptVarScopeFnc() {}
3929	CScriptVarLinkWorkPtr CScriptVarScopeFnc::findInScopes(const string &childName) {
3930	CScriptVarLinkWorkPtr ret = findChild(childName);
3931	if( !ret ) {
3932	if(closure) ret = CScriptVarScopePtr(closure)->findInScopes(childName);
3933	else ret = context->getRoot()->findChild(childName);
3934	}
3935	return ret;
3936	}
3937
3938	void CScriptVarScopeFnc::setReturnVar(const CScriptVarPtr &var) {
3939	addChildOrReplace(TINYJS_RETURN_VAR, var);
3940	}
3941
3942	CScriptVarPtr CScriptVarScopeFnc::getParameter(const string &name) {
3943	return getArgument(name);
3944	}
3945
3946	CScriptVarPtr CScriptVarScopeFnc::getParameter(int Idx) {
3947	return getArgument(Idx);
3948	}
3949	CScriptVarPtr CScriptVarScopeFnc::getArgument(const string &name) {
3950	return findChildOrCreate(name);
3951	}
3952	CScriptVarPtr CScriptVarScopeFnc::getArgument(int Idx) {
3953	CScriptVarLinkPtr arguments = findChildOrCreate(TINYJS_ARGUMENTS_VAR);
3954	if(arguments) arguments = arguments->getVarPtr()->findChild(int2string(Idx));
3955	return arguments ? arguments->getVarPtr() : constScriptVar(Undefined);
3956	}
3957	int CScriptVarScopeFnc::getParameterLength() {
3958	return getArgumentsLength();
3959	}
3960	int CScriptVarScopeFnc::getArgumentsLength() {
3961	CScriptVarLinkPtr arguments = findChild(TINYJS_ARGUMENTS_VAR);
3962	if(arguments) arguments = arguments->getVarPtr()->findChild("length");
3963	return arguments ? arguments.getter()->toNumber().toInt32() : 0;
3964	}
3965
3966	void CScriptVarScopeFnc::throwError( ERROR_TYPES ErrorType, const string &message ) {
3967	throw newScriptVarError(context, ErrorType, message.c_str());
3968	}
3969
3970
3971	//////////////////////////////////////////////////////////////////////////
3972	/// CScriptVarScopeLet
3973	//////////////////////////////////////////////////////////////////////////
3974
3975	declare_dummy_t(ScopeLet);
3976	CScriptVarScopeLet::CScriptVarScopeLet(const CScriptVarScopePtr &Parent) // constructor for LetScope
3977	: CScriptVarScope(Parent->getContext()), parent(addChild(TINYJS_SCOPE_PARENT_VAR, Parent, 0))
3978	, letExpressionInitMode(false) {}
3979
3980	CScriptVarScopeLet::~CScriptVarScopeLet() {}
3981	CScriptVarPtr CScriptVarScopeLet::scopeVar() { // to create var like: var a = ...
3982	return getParent()->scopeVar();
3983	}
3984	CScriptVarScopePtr CScriptVarScopeLet::getParent() { return (CScriptVarPtr)parent; }
3985	CScriptVarLinkWorkPtr CScriptVarScopeLet::findInScopes(const string &childName) {
3986	CScriptVarLinkWorkPtr ret;
3987	if(letExpressionInitMode) {
3988	return getParent()->findInScopes(childName);
3989	} else {
3990	ret = findChild(childName);
3991	if( !ret ) ret = getParent()->findInScopes(childName);
3992	}
3993	return ret;
3994	}
3995
3996
3997	//////////////////////////////////////////////////////////////////////////
3998	/// CScriptVarScopeWith
3999	//////////////////////////////////////////////////////////////////////////
4000
4001	declare_dummy_t(ScopeWith);
4002	CScriptVarScopeWith::~CScriptVarScopeWith() {}
4003	CScriptVarPtr CScriptVarScopeWith::scopeLet() { // to create var like: let a = ...
4004	return getParent()->scopeLet();
4005	}
4006	CScriptVarLinkWorkPtr CScriptVarScopeWith::findInScopes(const string &childName) {
4007	if(childName == "this") return with;
4008	CScriptVarLinkWorkPtr ret = with->getVarPtr()->findChild(childName);
4009	if( !ret ) {
4010	ret = with->getVarPtr()->findChildInPrototypeChain(childName);
4011	if(ret) {
4012	ret(ret->getVarPtr(), ret->getName()); // recreate ret
4013	ret.setReferencedOwner(with->getVarPtr()); // fake referenced Owner
4014	}
4015	}
4016	if( !ret ) ret = getParent()->findInScopes(childName);
4017	return ret;
4018	}
4019
4020
4021	//////////////////////////////////////////////////////////////////////////
4022	/// CTinyJS
4023	//////////////////////////////////////////////////////////////////////////
4024
4025	extern "C" void _registerFunctions(CTinyJS *tinyJS);
4026	extern "C" void _registerStringFunctions(CTinyJS *tinyJS);
4027	extern "C" void _registerMathFunctions(CTinyJS *tinyJS);
4028
4029	CTinyJS::CTinyJS() {
4030	CScriptVarPtr var;
4031	t = 0;
4032	haveTry = false;
4033	first = 0;
4034	uniqueID = 0;
4035
4036
4037	//////////////////////////////////////////////////////////////////////////
4038	// Object-Prototype
4039	// must be created as first object because this prototype is the base of all objects
4040	objectPrototype = newScriptVar(Object);
4041
4042	// all objects have a prototype. Also the prototype of prototypes
4043	objectPrototype->addChild(TINYJS___PROTO___VAR, objectPrototype, 0);
4044
4045	//////////////////////////////////////////////////////////////////////////
4046	// Function-Prototype
4047	// must be created as second object because this is the base of all functions (also constructors)
4048	functionPrototype = newScriptVar(Object);
4049
4050
4051	//////////////////////////////////////////////////////////////////////////
4052	// Scopes
4053	root = ::newScriptVar(this, Scope);
4054	scopes.push_back(root);
4055
4056	//////////////////////////////////////////////////////////////////////////
4057	// Add built-in classes
4058	//////////////////////////////////////////////////////////////////////////
4059	// Object
4060	var = addNative("function Object()", this, &CTinyJS::native_Object, 0, SCRIPTVARLINK_CONSTANT);
4061	objectPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4062	addNative("function Object.getPrototypeOf(obj)", this, &CTinyJS::native_Object_getPrototypeOf);
4063	addNative("function Object.preventExtensions(obj)", this, &CTinyJS::native_Object_setObjectSecure);
4064	addNative("function Object.isExtensible(obj)", this, &CTinyJS::native_Object_isSecureObject);
4065	addNative("function Object.seel(obj)", this, &CTinyJS::native_Object_setObjectSecure, (void*)1);
4066	addNative("function Object.isSealed(obj)", this, &CTinyJS::native_Object_isSecureObject, (void*)1);
4067	addNative("function Object.freeze(obj)", this, &CTinyJS::native_Object_setObjectSecure, (void*)2);
4068	addNative("function Object.isFrozen(obj)", this, &CTinyJS::native_Object_isSecureObject, (void*)2);
4069	addNative("function Object.keys(obj)", this, &CTinyJS::native_Object_keys);
4070	addNative("function Object.getOwnPropertyNames(obj)", this, &CTinyJS::native_Object_keys, (void*)1);
4071	addNative("function Object.getOwnPropertyDescriptor(obj,name)", this, &CTinyJS::native_Object_getOwnPropertyDescriptor);
4072	addNative("function Object.defineProperty(obj,name,attributes)", this, &CTinyJS::native_Object_defineProperty);
4073	addNative("function Object.defineProperties(obj,properties)", this, &CTinyJS::native_Object_defineProperties);
4074	addNative("function Object.create(obj,properties)", this, &CTinyJS::native_Object_defineProperties, (void*)1);
4075
4076	addNative("function Object.prototype.hasOwnProperty(prop)", this, &CTinyJS::native_Object_prototype_hasOwnProperty);
4077	objectPrototype_valueOf = addNative("function Object.prototype.valueOf()", this, &CTinyJS::native_Object_prototype_valueOf);
4078	objectPrototype_toString = addNative("function Object.prototype.toString(radix)", this, &CTinyJS::native_Object_prototype_toString);
4079	pseudo_refered.push_back(&objectPrototype);
4080	pseudo_refered.push_back(&objectPrototype_valueOf);
4081	pseudo_refered.push_back(&objectPrototype_toString);
4082
4083	//////////////////////////////////////////////////////////////////////////
4084	// Array
4085	var = addNative("function Array()", this, &CTinyJS::native_Array, 0, SCRIPTVARLINK_CONSTANT);
4086	arrayPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4087	arrayPrototype->addChild("valueOf", objectPrototype_valueOf);
4088	arrayPrototype->addChild("toString", objectPrototype_toString);
4089	pseudo_refered.push_back(&arrayPrototype);
4090	var = addNative("function Array.__constructor__()", this, &CTinyJS::native_Array, (void*)1, SCRIPTVARLINK_CONSTANT);
4091	var->getFunctionData()->name = "Array";
4092	//////////////////////////////////////////////////////////////////////////
4093	// String
4094	var = addNative("function String()", this, &CTinyJS::native_String, 0, SCRIPTVARLINK_CONSTANT);
4095	stringPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4096	stringPrototype->addChild("valueOf", objectPrototype_valueOf);
4097	stringPrototype->addChild("toString", objectPrototype_toString);
4098	pseudo_refered.push_back(&stringPrototype);
4099	var = addNative("function String.__constructor__()", this, &CTinyJS::native_String, (void*)1, SCRIPTVARLINK_CONSTANT);
4100	var->getFunctionData()->name = "String";
4101
4102	//////////////////////////////////////////////////////////////////////////
4103	// RegExp
4104	#ifndef NO_REGEXP
4105	var = addNative("function RegExp()", this, &CTinyJS::native_RegExp, 0, SCRIPTVARLINK_CONSTANT);
4106	regexpPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4107	regexpPrototype->addChild("valueOf", objectPrototype_valueOf);
4108	regexpPrototype->addChild("toString", objectPrototype_toString);
4109	pseudo_refered.push_back(&regexpPrototype);
4110	#endif /* NO_REGEXP */
4111
4112	//////////////////////////////////////////////////////////////////////////
4113	// Number
4114	var = addNative("function Number()", this, &CTinyJS::native_Number, 0, SCRIPTVARLINK_CONSTANT);
4115	var->addChild("NaN", constNaN = newScriptVarNumber(this, NaN), SCRIPTVARLINK_CONSTANT);
4116	var->addChild("MAX_VALUE", constInfinityPositive = newScriptVarNumber(this, numeric_limits<double>::max()), SCRIPTVARLINK_CONSTANT);
4117	var->addChild("MIN_VALUE", constInfinityPositive = newScriptVarNumber(this, numeric_limits<double>::min()), SCRIPTVARLINK_CONSTANT);
4118	var->addChild("POSITIVE_INFINITY", constInfinityPositive = newScriptVarNumber(this, InfinityPositive), SCRIPTVARLINK_CONSTANT);
4119	var->addChild("NEGATIVE_INFINITY", constInfinityNegative = newScriptVarNumber(this, InfinityNegative), SCRIPTVARLINK_CONSTANT);
4120	numberPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4121	numberPrototype->addChild("valueOf", objectPrototype_valueOf);
4122	numberPrototype->addChild("toString", objectPrototype_toString);
4123	pseudo_refered.push_back(&numberPrototype);
4124	pseudo_refered.push_back(&constNaN);
4125	pseudo_refered.push_back(&constInfinityPositive);
4126	pseudo_refered.push_back(&constInfinityNegative);
4127	var = addNative("function Number.__constructor__()", this, &CTinyJS::native_Number, (void*)1, SCRIPTVARLINK_CONSTANT);
4128	var->getFunctionData()->name = "Number";
4129
4130	//////////////////////////////////////////////////////////////////////////
4131	// Boolean
4132	var = addNative("function Boolean()", this, &CTinyJS::native_Boolean, 0, SCRIPTVARLINK_CONSTANT);
4133	booleanPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4134	booleanPrototype->addChild("valueOf", objectPrototype_valueOf);
4135	booleanPrototype->addChild("toString", objectPrototype_toString);
4136	pseudo_refered.push_back(&booleanPrototype);
4137	var = addNative("function Boolean.__constructor__()", this, &CTinyJS::native_Boolean, (void*)1, SCRIPTVARLINK_CONSTANT);
4138	var->getFunctionData()->name = "Boolean";
4139
4140	//////////////////////////////////////////////////////////////////////////
4141	// Iterator
4142	var = addNative("function Iterator(obj,mode)", this, &CTinyJS::native_Iterator, 0, SCRIPTVARLINK_CONSTANT);
4143	iteratorPrototype = var->findChild(TINYJS_PROTOTYPE_CLASS);
4144	pseudo_refered.push_back(&iteratorPrototype);
4145
4146	//////////////////////////////////////////////////////////////////////////
4147	// Function
4148	var = addNative("function Function(params, body)", this, &CTinyJS::native_Function, 0, SCRIPTVARLINK_CONSTANT);
4149	var->addChildOrReplace(TINYJS_PROTOTYPE_CLASS, functionPrototype);
4150	addNative("function Function.prototype.call(objc)", this, &CTinyJS::native_Function_prototype_call);
4151	addNative("function Function.prototype.apply(objc, args)", this, &CTinyJS::native_Function_prototype_apply);
4152	addNative("function Function.prototype.bind(objc, args)", this, &CTinyJS::native_Function_prototype_bind);
4153	functionPrototype->addChild("valueOf", objectPrototype_valueOf);
4154	functionPrototype->addChild("toString", objectPrototype_toString);
4155	pseudo_refered.push_back(&functionPrototype);
4156
4157	//////////////////////////////////////////////////////////////////////////
4158	// Error
4159	var = addNative("function Error(message, fileName, lineNumber, column)", this, &CTinyJS::native_Error, 0, SCRIPTVARLINK_CONSTANT);
4160	errorPrototypes[Error] = var->findChild(TINYJS_PROTOTYPE_CLASS);
4161	errorPrototypes[Error]->addChild("message", newScriptVar(""));
4162	errorPrototypes[Error]->addChild("name", newScriptVar("Error"));
4163	errorPrototypes[Error]->addChild("fileName", newScriptVar(""));
4164	errorPrototypes[Error]->addChild("lineNumber", newScriptVar(-1)); // -1 means not viable
4165	errorPrototypes[Error]->addChild("column", newScriptVar(-1)); // -1 means not viable
4166
4167	var = addNative("function EvalError(message, fileName, lineNumber, column)", this, &CTinyJS::native_EvalError, 0, SCRIPTVARLINK_CONSTANT);
4168	errorPrototypes[EvalError] = var->findChild(TINYJS_PROTOTYPE_CLASS);
4169	errorPrototypes[EvalError]->addChildOrReplace(TINYJS___PROTO___VAR, errorPrototypes[Error], SCRIPTVARLINK_WRITABLE);
4170	errorPrototypes[EvalError]->addChild("name", newScriptVar("EvalError"));
4171
4172	var = addNative("function RangeError(message, fileName, lineNumber, column)", this, &CTinyJS::native_RangeError, 0, SCRIPTVARLINK_CONSTANT);
4173	errorPrototypes[RangeError] = var->findChild(TINYJS_PROTOTYPE_CLASS);
4174	errorPrototypes[RangeError]->addChildOrReplace(TINYJS___PROTO___VAR, errorPrototypes[Error], SCRIPTVARLINK_WRITABLE);
4175	errorPrototypes[RangeError]->addChild("name", newScriptVar("RangeError"));
4176
4177	var = addNative("function ReferenceError(message, fileName, lineNumber, column)", this, &CTinyJS::native_ReferenceError, 0, SCRIPTVARLINK_CONSTANT);
4178	errorPrototypes[ReferenceError] = var->findChild(TINYJS_PROTOTYPE_CLASS);
4179	errorPrototypes[ReferenceError]->addChildOrReplace(TINYJS___PROTO___VAR, errorPrototypes[Error], SCRIPTVARLINK_WRITABLE);
4180	errorPrototypes[ReferenceError]->addChild("name", newScriptVar("ReferenceError"));
4181
4182	var = addNative("function SyntaxError(message, fileName, lineNumber, column)", this, &CTinyJS::native_SyntaxError, 0, SCRIPTVARLINK_CONSTANT);
4183	errorPrototypes[SyntaxError] = var->findChild(TINYJS_PROTOTYPE_CLASS);
4184	errorPrototypes[SyntaxError]->addChildOrReplace(TINYJS___PROTO___VAR, errorPrototypes[Error], SCRIPTVARLINK_WRITABLE);
4185	errorPrototypes[SyntaxError]->addChild("name", newScriptVar("SyntaxError"));
4186
4187	var = addNative("function TypeError(message, fileName, lineNumber, column)", this, &CTinyJS::native_TypeError, 0, SCRIPTVARLINK_CONSTANT);
4188	errorPrototypes[TypeError] = var->findChild(TINYJS_PROTOTYPE_CLASS);
4189	errorPrototypes[TypeError]->addChildOrReplace(TINYJS___PROTO___VAR, errorPrototypes[Error], SCRIPTVARLINK_WRITABLE);
4190	errorPrototypes[TypeError]->addChild("name", newScriptVar("TypeError"));
4191
4192	//////////////////////////////////////////////////////////////////////////
4193	// add global built-in vars & constants
4194	root->addChild("undefined", constUndefined = newScriptVarUndefined(this), SCRIPTVARLINK_CONSTANT);
4195	pseudo_refered.push_back(&constUndefined);
4196	constNull = newScriptVarNull(this); pseudo_refered.push_back(&constNull);
4197	root->addChild("NaN", constNaN, SCRIPTVARLINK_CONSTANT);
4198	root->addChild("Infinity", constInfinityPositive, SCRIPTVARLINK_CONSTANT);
4199	root->addChild("StopIteration", constStopIteration=newScriptVar(Object, var=newScriptVar(Object)), SCRIPTVARLINK_CONSTANT);
4200	constStopIteration->addChild(TINYJS_PROTOTYPE_CLASS, var, SCRIPTVARLINK_CONSTANT); pseudo_refered.push_back(&constStopIteration);
4201	constNegativZero = newScriptVarNumber(this, NegativeZero); pseudo_refered.push_back(&constNegativZero);
4202	constFalse = newScriptVarBool(this, false); pseudo_refered.push_back(&constFalse);
4203	constTrue = newScriptVarBool(this, true); pseudo_refered.push_back(&constTrue);
4204
4205	//////////////////////////////////////////////////////////////////////////
4206	// add global functions
4207	addNative("function eval(jsCode)", this, &CTinyJS::native_eval);
4208	addNative("function isNaN(objc)", this, &CTinyJS::native_isNAN);
4209	addNative("function isFinite(objc)", this, &CTinyJS::native_isFinite);
4210	addNative("function parseInt(string, radix)", this, &CTinyJS::native_parseInt);
4211	addNative("function parseFloat(string)", this, &CTinyJS::native_parseFloat);
4212
4213
4214	addNative("function JSON.parse(text, reviver)", this, &CTinyJS::native_JSON_parse);
4215
4216	_registerFunctions(this);
4217	_registerStringFunctions(this);
4218	_registerMathFunctions(this);
4219	}
4220
4221	CTinyJS::~CTinyJS() {
4222	ASSERT(!t);
4223	for(vector<CScriptVarPtr*>::iterator it = pseudo_refered.begin(); it!=pseudo_refered.end(); ++it)
4224	**it = CScriptVarPtr();
4225	for(int i=Error; i<ERROR_COUNT; i++)
4226	errorPrototypes[i] = CScriptVarPtr();
4227	root->removeAllChildren();
4228	scopes.clear();
4229	ClearUnreferedVars();
4230	root = CScriptVarPtr();
4231	#ifdef _DEBUG
4232	for(CScriptVar *p = first; p; p=p->next)
4233	printf("%p\n", p);
4234	#endif
4235	#if DEBUG_MEMORY
4236	show_allocated();
4237	#endif
4238	}
4239
4240	//////////////////////////////////////////////////////////////////////////
4241	/// throws an Error & Exception
4242	//////////////////////////////////////////////////////////////////////////
4243
4244	void CTinyJS::throwError(CScriptResult &execute, ERROR_TYPES ErrorType, const string &message ) {
4245	if(execute && haveTry) {
4246	execute.set(CScriptResult::Throw, newScriptVarError(this, ErrorType, message.c_str(), t->currentFile.c_str(), t->currentLine(), t->currentColumn()));
4247	return;
4248	}
4249	throw new CScriptException(ErrorType, message, t->currentFile, t->currentLine(), t->currentColumn());
4250	}
4251	void CTinyJS::throwException(ERROR_TYPES ErrorType, const string &message ) {
4252	throw new CScriptException(ErrorType, message, t->currentFile, t->currentLine(), t->currentColumn());
4253	}
4254
4255	void CTinyJS::throwError(CScriptResult &execute, ERROR_TYPES ErrorType, const string &message, CScriptTokenizer::ScriptTokenPosition &Pos ){
4256	if(execute && haveTry) {
4257	execute.set(CScriptResult::Throw, newScriptVarError(this, ErrorType, message.c_str(), t->currentFile.c_str(), Pos.currentLine(), Pos.currentColumn()));
4258	return;
4259	}
4260	throw new CScriptException(ErrorType, message, t->currentFile, Pos.currentLine(), Pos.currentColumn());
4261	}
4262	void CTinyJS::throwException(ERROR_TYPES ErrorType, const string &message, CScriptTokenizer::ScriptTokenPosition &Pos ){
4263	throw new CScriptException(ErrorType, message, t->currentFile, Pos.currentLine(), Pos.currentColumn());
4264	}
4265
4266	//////////////////////////////////////////////////////////////////////////
4267
4268	void CTinyJS::trace() {
4269	root->trace();
4270	}
4271
4272	void CTinyJS::execute(CScriptTokenizer &Tokenizer) {
4273	evaluateComplex(Tokenizer);
4274	}
4275
4276	void CTinyJS::execute(const char *Code, const string &File, int Line, int Column) {
4277	evaluateComplex(Code, File, Line, Column);
4278	}
4279
4280	void CTinyJS::execute(const string &Code, const string &File, int Line, int Column) {
4281	evaluateComplex(Code, File, Line, Column);
4282	}
4283
4284	CScriptVarLinkPtr CTinyJS::evaluateComplex(CScriptTokenizer &Tokenizer) {
4285	t = &Tokenizer;
4286	CScriptResult execute;
4287	try {
4288	do {
4289	execute_statement(execute);
4290	while (t->tk==';') t->match(';'); // skip empty statements
4291	} while (t->tk!=LEX_EOF);
4292	} catch (...) {
4293	haveTry = false;
4294	t=0; // clean up Tokenizer
4295	throw; //
4296	}
4297	t=0;
4298	ClearUnreferedVars(execute.value);
4299
4300	uint32_t UniqueID = getUniqueID();
4301	setTemporaryID_recursive(UniqueID);
4302	if(execute.value) execute.value->setTemporaryID_recursive(UniqueID);
4303	for(CScriptVar *p = first; p; p=p->next)
4304	{
4305	if(p->temporaryID != UniqueID)
4306	printf("%p\n", p);
4307	}
4308
4309	if (execute.value)
4310	return CScriptVarLinkPtr(execute.value);
4311	// return undefined...
4312	return CScriptVarLinkPtr(constScriptVar(Undefined));
4313	}
4314	CScriptVarLinkPtr CTinyJS::evaluateComplex(const char *Code, const string &File, int Line, int Column) {
4315	CScriptTokenizer Tokenizer(Code, File, Line, Column);
4316	return evaluateComplex(Tokenizer);
4317	}
4318	CScriptVarLinkPtr CTinyJS::evaluateComplex(const string &Code, const string &File, int Line, int Column) {
4319	CScriptTokenizer Tokenizer(Code.c_str(), File, Line, Column);
4320	return evaluateComplex(Tokenizer);
4321	}
4322
4323	string CTinyJS::evaluate(CScriptTokenizer &Tokenizer) {
4324	return evaluateComplex(Tokenizer)->toString();
4325	}
4326	string CTinyJS::evaluate(const char *Code, const string &File, int Line, int Column) {
4327	return evaluateComplex(Code, File, Line, Column)->toString();
4328	}
4329	string CTinyJS::evaluate(const string &Code, const string &File, int Line, int Column) {
4330	return evaluate(Code.c_str(), File, Line, Column);
4331	}
4332
4333	CScriptVarFunctionNativePtr CTinyJS::addNative(const string &funcDesc, JSCallback ptr, void *userdata, int LinkFlags) {
4334	return addNative(funcDesc, ::newScriptVar(this, ptr, userdata), LinkFlags);
4335	}
4336
4337	CScriptVarFunctionNativePtr CTinyJS::addNative(const string &funcDesc, CScriptVarFunctionNativePtr Var, int LinkFlags) {
4338	CScriptLex lex(funcDesc.c_str());
4339	CScriptVarPtr base = root;
4340
4341	lex.match(LEX_R_FUNCTION);
4342	string funcName = lex.tkStr;
4343	lex.match(LEX_ID);
4344	/* Check for dots, we might want to do something like function String.substring ... */
4345	while (lex.tk == '.') {
4346	lex.match('.');
4347	CScriptVarLinkPtr link = base->findChild(funcName);
4348	// if it doesn't exist, make an object class
4349	if (!link) link = base->addChild(funcName, newScriptVar(Object));
4350	base = link->getVarPtr();
4351	funcName = lex.tkStr;
4352	lex.match(LEX_ID);
4353	}
4354
4355	auto_ptr<CScriptTokenDataFnc> pFunctionData(new CScriptTokenDataFnc);
4356	pFunctionData->name = funcName;
4357	lex.match('(');
4358	while (lex.tk!=')') {
4359	pFunctionData->arguments.push_back(CScriptToken(LEX_ID, lex.tkStr));
4360	lex.match(LEX_ID);
4361	if (lex.tk!=')') lex.match(',',')');
4362	}
4363	lex.match(')');
4364	Var->setFunctionData(pFunctionData.release());
4365	Var->addChild(TINYJS_PROTOTYPE_CLASS, newScriptVar(Object), SCRIPTVARLINK_WRITABLE);
4366
4367	base->addChild(funcName, Var, LinkFlags);
4368	return Var;
4369
4370	}
4371
4372	CScriptVarLinkWorkPtr CTinyJS::parseFunctionDefinition(const CScriptToken &FncToken) {
4373	const CScriptTokenDataFnc &Fnc = FncToken.Fnc();
4374	// string fncName = (FncToken.token == LEX_T_FUNCTION_OPERATOR) ? TINYJS_TEMP_NAME : Fnc.name;
4375	CScriptVarLinkWorkPtr funcVar(newScriptVar((CScriptTokenDataFnc*)&Fnc), Fnc.name);
4376	if(scope() != root)
4377	funcVar->getVarPtr()->addChild(TINYJS_FUNCTION_CLOSURE_VAR, scope(), 0);
4378	funcVar->getVarPtr()->addChild(TINYJS_PROTOTYPE_CLASS, newScriptVar(Object), SCRIPTVARLINK_WRITABLE);
4379	return funcVar;
4380	}
4381
4382	CScriptVarLinkWorkPtr CTinyJS::parseFunctionsBodyFromString(const string &ArgumentList, const string &FncBody) {
4383	string Fnc = "function ("+ArgumentList+"){"+FncBody+"}";
4384	CScriptTokenizer tokenizer(Fnc.c_str());
4385	return parseFunctionDefinition(tokenizer.getToken());
4386	}
4387	CScriptVarPtr CTinyJS::callFunction(const CScriptVarFunctionPtr &Function, vector<CScriptVarPtr> &Arguments, const CScriptVarPtr &This, CScriptVarPtr *newThis) {
4388	CScriptResult execute;
4389	CScriptVarPtr retVar = callFunction(execute, Function, Arguments, This, newThis);
4390	execute.cThrow();
4391	return retVar;
4392	}
4393
4394	CScriptVarPtr CTinyJS::callFunction(CScriptResult &execute, const CScriptVarFunctionPtr &Function, vector<CScriptVarPtr> &Arguments, const CScriptVarPtr &This, CScriptVarPtr *newThis) {
4395	ASSERT(Function && Function->isFunction());
4396
4397	if(Function->isBounded()) return CScriptVarFunctionBoundedPtr(Function)->callFunction(execute, Arguments, This, newThis);
4398
4399	CScriptTokenDataFnc *Fnc = Function->getFunctionData();
4400	CScriptVarScopeFncPtr functionRoot(::newScriptVar(this, ScopeFnc, CScriptVarPtr(Function->findChild(TINYJS_FUNCTION_CLOSURE_VAR))));
4401	if(Fnc->name.size()) functionRoot->addChild(Fnc->name, Function);
4402	functionRoot->addChild("this", This);
4403	CScriptVarPtr arguments = functionRoot->addChild(TINYJS_ARGUMENTS_VAR, newScriptVar(Object));
4404
4405	CScriptResult function_execute;
4406	int length_proto = Fnc->arguments.size();
4407	int length_arguments = Arguments.size();
4408	int length = max(length_proto, length_arguments);
4409	for(int arguments_idx = 0; arguments_idx<length; ++arguments_idx) {
4410	string arguments_idx_str = int2string(arguments_idx);
4411	CScriptVarLinkWorkPtr value;
4412	if(arguments_idx < length_arguments) {
4413	value = arguments->addChild(arguments_idx_str, Arguments[arguments_idx]);
4414	} else {
4415	value = constScriptVar(Undefined);
4416	}
4417	if(arguments_idx < length_proto) {
4418	CScriptToken &FncArguments = Fnc->arguments[arguments_idx];
4419	if(FncArguments.token == LEX_ID)
4420	functionRoot->addChildOrReplace(FncArguments.String(), value);
4421	else
4422	assign_destructuring_var(functionRoot, FncArguments.DestructuringVar(), value, function_execute);
4423	}
4424	}
4425	arguments->addChild("length", newScriptVar(length_arguments));
4426
4427	// execute function!
4428	// add the function's execute space to the symbol table so we can recurse
4429	CScopeControl ScopeControl(this);
4430	ScopeControl.addFncScope(functionRoot);
4431	if (Function->isNative()) {
4432	try {
4433	CScriptVarFunctionNativePtr(Function)->callFunction(functionRoot);
4434	CScriptVarLinkPtr ret = functionRoot->findChild(TINYJS_RETURN_VAR);
4435	function_execute.set(CScriptResult::Return, ret ? CScriptVarPtr(ret) : constUndefined);
4436	} catch (CScriptVarPtr v) {
4437	if(haveTry) {
4438	function_execute.set(CScriptResult::Throw, v);
4439	} else if(v->isError()) {
4440	CScriptException *err = CScriptVarErrorPtr(v)->toCScriptException();
4441	if(err->fileName.empty()) err->fileName = "native function '"+Function->getFunctionData()->name+"'";
4442	throw err;
4443	}
4444	else
4445	throw new CScriptException(Error, v->toString(function_execute)+"' in: native function '"+Function->getFunctionData()->name+"'");
4446	}
4447	} else {
4448	/* we just want to execute the block, but something could
4449	* have messed up and left us with the wrong ScriptLex, so
4450	* we want to be careful here... */
4451	string oldFile = t->currentFile;
4452	t->currentFile = Fnc->file;
4453	t->pushTokenScope(Fnc->body);
4454	if(Fnc->body.front().token == '{')
4455	execute_block(function_execute);
4456	else {
4457	CScriptVarPtr ret = execute_base(function_execute);
4458	if(function_execute) function_execute.set(CScriptResult::Return, ret);
4459	}
4460	t->currentFile = oldFile;
4461
4462	// because return will probably have called this, and set execute to false
4463	}
4464	if(function_execute.isReturnNormal()) {
4465	if(newThis) *newThis = functionRoot->findChild("this");
4466	if(function_execute.isReturn()) {
4467	CScriptVarPtr ret = function_execute.value;
4468	return ret;
4469	}
4470	} else
4471	execute = function_execute;
4472	return constScriptVar(Undefined);
4473	}
4474
4475	CScriptVarPtr CTinyJS::mathsOp(CScriptResult &execute, const CScriptVarPtr &A, const CScriptVarPtr &B, int op) {
4476	if(!execute) return constUndefined;
4477	if (op == LEX_TYPEEQUAL \|\| op == LEX_NTYPEEQUAL) {
4478	// check type first
4479	if( (A->getVarType() == B->getVarType()) ^ (op == LEX_TYPEEQUAL)) return constFalse;
4480	// check value second
4481	return mathsOp(execute, A, B, op == LEX_TYPEEQUAL ? LEX_EQUAL : LEX_NEQUAL);
4482	}
4483	if (!A->isPrimitive() && !B->isPrimitive()) { // Objects both
4484	// check pointers
4485	switch (op) {
4486	case LEX_EQUAL: return constScriptVar(A==B);
4487	case LEX_NEQUAL: return constScriptVar(A!=B);
4488	}
4489	}
4490
4491	CScriptVarPtr a = A->toPrimitive_hintNumber(execute);
4492	CScriptVarPtr b = B->toPrimitive_hintNumber(execute);
4493	if(!execute) return constUndefined;
4494	// do maths...
4495	bool a_isString = a->isString();
4496	bool b_isString = b->isString();
4497	// both a String or one a String and op='+'
4498	if( (a_isString && b_isString) \|\| ((a_isString \|\| b_isString) && op == '+')) {
4499	string da = a->isNull() ? "" : a->toString(execute);
4500	string db = b->isNull() ? "" : b->toString(execute);
4501	switch (op) {
4502	case '+': return newScriptVar(da+db);
4503	case LEX_EQUAL: return constScriptVar(da==db);
4504	case LEX_NEQUAL: return constScriptVar(da!=db);
4505	case '<': return constScriptVar(da<db);
4506	case LEX_LEQUAL: return constScriptVar(da<=db);
4507	case '>': return constScriptVar(da>db);
4508	case LEX_GEQUAL: return constScriptVar(da>=db);
4509	}
4510	}
4511	// special for undefined and null --> every true: undefined==undefined, undefined==null, null==undefined and null=null
4512	else if( (a->isUndefined() \|\| a->isNull()) && (b->isUndefined() \|\| b->isNull()) ) {
4513	switch (op) {
4514	case LEX_EQUAL: return constScriptVar(true);
4515	case LEX_NEQUAL:
4516	case LEX_GEQUAL:
4517	case LEX_LEQUAL:
4518	case '<':
4519	case '>': return constScriptVar(false);
4520	}
4521	}
4522	CNumber da = a->toNumber();
4523	CNumber db = b->toNumber();
4524	switch (op) {
4525	case '+': return a->newScriptVar(da+db);
4526	case '-': return a->newScriptVar(da-db);
4527	case '': return a->newScriptVar(dadb);
4528	case '/': return a->newScriptVar(da/db);
4529	case '%': return a->newScriptVar(da%db);
4530	case '&': return a->newScriptVar(da.toInt32()&db.toInt32());
4531	case '\|': return a->newScriptVar(da.toInt32()\|db.toInt32());
4532	case '^': return a->newScriptVar(da.toInt32()^db.toInt32());
4533	case '~': return a->newScriptVar(~da);
4534	case LEX_LSHIFT: return a->newScriptVar(da<<db);
4535	case LEX_RSHIFT: return a->newScriptVar(da>>db);
4536	case LEX_RSHIFTU: return a->newScriptVar(da.ushift(db));
4537	case LEX_EQUAL: return a->constScriptVar(da==db);
4538	case LEX_NEQUAL: return a->constScriptVar(da!=db);
4539	case '<': return a->constScriptVar(da<db);
4540	case LEX_LEQUAL: return a->constScriptVar(da<=db);
4541	case '>': return a->constScriptVar(da>db);
4542	case LEX_GEQUAL: return a->constScriptVar(da>=db);
4543	default: throw new CScriptException("This operation not supported on the int datatype");
4544	}
4545	}
4546
4547	void CTinyJS::assign_destructuring_var(const CScriptVarPtr &Scope, const CScriptTokenDataDestructuringVar &Objc, const CScriptVarPtr &Val, CScriptResult &execute) {
4548	if(!execute) return;
4549	if(Objc.vars.size() == 1) {
4550	if(Scope)
4551	Scope->addChildOrReplace(Objc.vars.front().second, Val);
4552	else {
4553	CScriptVarLinkWorkPtr v(findInScopes(Objc.vars.front().second));
4554	ASSERT(v==true);
4555	if(v) v->setVarPtr(Val);
4556	}
4557	} else {
4558	vector<CScriptVarPtr> Path(1, Val);
4559	for(DESTRUCTURING_VARS_cit it=Objc.vars.begin()+1; it!=Objc.vars.end(); ++it) {
4560	if(it->second == "}" \|\| it->second == "]")
4561	Path.pop_back();
4562	else {
4563	if(it->second.empty()) continue; // skip empty entries
4564	CScriptVarLinkWorkPtr var = Path.back()->findChildWithStringChars(it->first);
4565	if(var) var = var.getter(execute); else var = constUndefined;
4566	if(!execute) return;
4567	if(it->second == "{" \|\| it->second == "[") {
4568	Path.push_back(var);
4569	} else if(Scope)
4570	Scope->addChildOrReplace(it->second, var);
4571	else {
4572	CScriptVarLinkWorkPtr v(findInScopes(it->second));
4573	ASSERT(v==true);
4574	if(v) v->setVarPtr(var);
4575	}
4576	}
4577	}
4578	}
4579	}
4580
4581	void CTinyJS::execute_var_init( bool hideLetScope, CScriptResult &execute )
4582	{
4583	for(;;) {
4584	t->check(LEX_T_DESTRUCTURING_VAR);
4585	CScriptTokenDataDestructuringVar &Objc = t->getToken().DestructuringVar();
4586	t->match(LEX_T_DESTRUCTURING_VAR);
4587	if(t->tk == '=') {
4588	t->match('=');
4589	if(hideLetScope) CScriptVarScopeLetPtr(scope())->setletExpressionInitMode(true);
4590	CScriptVarPtr Val = execute_assignment(execute);
4591	if(hideLetScope) CScriptVarScopeLetPtr(scope())->setletExpressionInitMode(false);
4592	assign_destructuring_var(0, Objc, Val, execute);
4593	}
4594	if (t->tk == ',')
4595	t->match(',');
4596	else
4597	break;
4598	}
4599	}
4600	void CTinyJS::execute_destructuring(CScriptTokenDataObjectLiteral &Objc, const CScriptVarPtr &Val, CScriptResult &execute) {
4601	for(vector<CScriptTokenDataObjectLiteral::ELEMENT>::iterator it=Objc.elements.begin(); execute && it!=Objc.elements.end(); ++it) {
4602	if(it->value.empty()) continue;
4603	CScriptVarPtr rhs = Val->findChildWithStringChars(it->id).getter(execute);
4604	if(!rhs) rhs=constUndefined;
4605	if(it->value.front().token == LEX_T_OBJECT_LITERAL && it->value.front().Object().destructuring) {
4606	execute_destructuring(it->value.front().Object(), rhs, execute);
4607	} else {
4608	t->pushTokenScope(it->value);
4609	CScriptVarLinkWorkPtr lhs = execute_condition(execute);
4610	if(lhs->isWritable()) {
4611	if (!lhs->isOwned()) {
4612	CScriptVarPtr fakedOwner = lhs.getReferencedOwner();
4613	if(fakedOwner) {
4614	if(!fakedOwner->isExtensible())
4615	continue;
4616	lhs = fakedOwner->addChildOrReplace(lhs->getName(), lhs);
4617	} else
4618	lhs = root->addChildOrReplace(lhs->getName(), lhs);
4619	}
4620	lhs.setter(execute, rhs);
4621	}
4622	}
4623	}
4624	}
4625
4626	CScriptVarLinkWorkPtr CTinyJS::execute_literals(CScriptResult &execute) {
4627	switch(t->tk) {
4628	case LEX_ID:
4629	if(execute) {
4630	CScriptVarLinkWorkPtr a(findInScopes(t->tkStr()));
4631	if (!a) {
4632	/* Variable doesn't exist! JavaScript says we should create it
4633	* (we won't add it here. This is done in the assignment operator)*/
4634	if(t->tkStr() == "this")
4635	a = root; // fake this
4636	else
4637	a = CScriptVarLinkPtr(constScriptVar(Undefined), t->tkStr());
4638	}
4639	/*
4640	prvention for assignment to this is now done by the tokenizer
4641	else if(t->tkStr() == "this")
4642	a(a->getVarPtr()); // prevent assign to this
4643	*/
4644	t->match(LEX_ID);
4645	return a;
4646	}
4647	t->match(LEX_ID);
4648	break;
4649	case LEX_INT:
4650	{
4651	CScriptVarPtr a = newScriptVar(t->getToken().Int());
4652	a->setExtensible(false);
4653	t->match(LEX_INT);
4654	return a;
4655	}
4656	break;
4657	case LEX_FLOAT:
4658	{
4659	CScriptVarPtr a = newScriptVar(t->getToken().Float());
4660	t->match(LEX_FLOAT);
4661	return a;
4662	}
4663	break;
4664	case LEX_STR:
4665	{
4666	CScriptVarPtr a = newScriptVar(t->getToken().String());
4667	t->match(LEX_STR);
4668	return a;
4669	}
4670	break;
4671	#ifndef NO_REGEXP
4672	case LEX_REGEXP:
4673	{
4674	string::size_type pos = t->getToken().String().find_last_of('/');
4675	string source = t->getToken().String().substr(1, pos-1);
4676	string flags = t->getToken().String().substr(pos+1);
4677	CScriptVarPtr a = newScriptVar(source, flags);
4678	t->match(LEX_REGEXP);
4679	return a;
4680	}
4681	break;
4682	#endif /* NO_REGEXP */
4683	case LEX_T_OBJECT_LITERAL:
4684	if(execute) {
4685	CScriptTokenDataObjectLiteral &Objc = t->getToken().Object();
4686	t->match(LEX_T_OBJECT_LITERAL);
4687	if(Objc.destructuring) {
4688	t->match('=');
4689	CScriptVarPtr a = execute_assignment(execute);
4690	if(execute) execute_destructuring(Objc, a, execute);
4691	return a;
4692	} else {
4693	CScriptVarPtr a = Objc.type==CScriptTokenDataObjectLiteral::OBJECT ? newScriptVar(Object) : newScriptVar(Array);
4694	for(vector<CScriptTokenDataObjectLiteral::ELEMENT>::iterator it=Objc.elements.begin(); execute && it!=Objc.elements.end(); ++it) {
4695	if(it->value.empty()) continue;
4696	CScriptToken &tk = it->value.front();
4697	if(tk.token==LEX_T_GET \|\| tk.token==LEX_T_SET) {
4698	CScriptTokenDataFnc &Fnc = tk.Fnc();
4699	if((tk.token == LEX_T_GET && Fnc.arguments.size()==0) \|\| (tk.token == LEX_T_SET && Fnc.arguments.size()==1)) {
4700	CScriptVarLinkWorkPtr funcVar = parseFunctionDefinition(tk);
4701	CScriptVarLinkWorkPtr child = a->findChild(Fnc.name);
4702	if(child && !child->getVarPtr()->isAccessor()) child.clear();
4703	if(!child) child = a->addChildOrReplace(Fnc.name, newScriptVar(Accessor));
4704	child->getVarPtr()->addChildOrReplace((tk.token==LEX_T_GET?TINYJS_ACCESSOR_GET_VAR:TINYJS_ACCESSOR_SET_VAR), funcVar->getVarPtr());
4705	}
4706	} else {
4707	t->pushTokenScope(it->value);
4708	a->addChildOrReplace(it->id, execute_assignment(execute));
4709	while(0);
4710	}
4711	}
4712	return a;
4713	}
4714	} else
4715	t->match(LEX_T_OBJECT_LITERAL);
4716	break;
4717	case LEX_R_LET: // let as expression
4718	if(execute) {
4719	CScopeControl ScopeControl(this);
4720	t->match(LEX_R_LET);
4721	t->match('(');
4722	t->check(LEX_T_FORWARD);
4723	ScopeControl.addLetScope();
4724	execute_statement(execute); // execute forwarder
4725	execute_var_init(true, execute);
4726	t->match(')');
4727	return execute_assignment(execute);
4728	} else {
4729	t->skip(t->getToken().Int());
4730	}
4731	break;
4732	case LEX_T_FUNCTION_OPERATOR:
4733	if(execute) {
4734	CScriptVarLinkWorkPtr a = parseFunctionDefinition(t->getToken());
4735	t->match(LEX_T_FUNCTION_OPERATOR);
4736	return a;
4737	}
4738	t->match(LEX_T_FUNCTION_OPERATOR);
4739	break;
4740	case LEX_R_NEW: // new -> create a new object
4741	if (execute) {
4742	t->match(LEX_R_NEW);
4743	CScriptVarLinkWorkPtr parent = execute_literals(execute);
4744	CScriptVarLinkWorkPtr objClass = execute_member(parent, execute).getter(execute);
4745	if (execute) {
4746	if(objClass->getVarPtr()->isFunction()) {
4747	CScriptVarPtr obj(newScriptVar(Object));
4748	CScriptVarLinkPtr prototype = objClass->getVarPtr()->findChild(TINYJS_PROTOTYPE_CLASS);
4749	if(!prototype \|\| prototype->getVarPtr()->isUndefined() \|\| prototype->getVarPtr()->isNull()) {
4750	prototype = objClass->getVarPtr()->addChild(TINYJS_PROTOTYPE_CLASS, newScriptVar(Object), SCRIPTVARLINK_WRITABLE);
4751	obj->addChildOrReplace(TINYJS___PROTO___VAR, prototype, SCRIPTVARLINK_WRITABLE);
4752	}
4753	CScriptVarLinkPtr constructor = objClass->getVarPtr()->findChild("__constructor__");
4754	if(constructor && constructor->getVarPtr()->isFunction())
4755	objClass = constructor;
4756	vector<CScriptVarPtr> arguments;
4757	if (t->tk == '(') {
4758	t->match('(');
4759	while(t->tk!=')') {
4760	CScriptVarPtr value = execute_assignment(execute).getter(execute);
4761	if (execute)
4762	arguments.push_back(value);
4763	if (t->tk!=')') t->match(',', ')');
4764	}
4765	t->match(')');
4766	}
4767	if(execute) {
4768	CScriptVarPtr returnVar = callFunction(execute, objClass->getVarPtr(), arguments, obj, &obj);
4769	if(returnVar->isObject())
4770	return CScriptVarLinkWorkPtr(returnVar);
4771	return CScriptVarLinkWorkPtr(obj);
4772	}
4773	} else
4774	throwError(execute, TypeError, objClass->getName() + " is not a constructor");
4775	} else
4776	if (t->tk == '(') t->skip(t->getToken().Int());
4777	} else
4778	t->skip(t->getToken().Int());
4779	break;
4780	case LEX_R_TRUE:
4781	t->match(LEX_R_TRUE);
4782	return constScriptVar(true);
4783	case LEX_R_FALSE:
4784	t->match(LEX_R_FALSE);
4785	return constScriptVar(false);
4786	case LEX_R_NULL:
4787	t->match(LEX_R_NULL);
4788	return constScriptVar(Null);
4789	case '(':
4790	if(execute) {
4791	t->match('(');
4792	CScriptVarLinkWorkPtr a = execute_base(execute).getter(execute);
4793	t->match(')');
4794	return a;
4795	} else
4796	t->skip(t->getToken().Int());
4797	break;
4798	case LEX_T_EXCEPTION_VAR:
4799	t->match(LEX_T_EXCEPTION_VAR);
4800	if(execute.value) return execute.value;
4801	break;
4802	default:
4803	t->match(LEX_EOF);
4804	break;
4805	}
4806	return constScriptVar(Undefined);
4807
4808	}
4809	CScriptVarLinkWorkPtr CTinyJS::execute_member(CScriptVarLinkWorkPtr &parent, CScriptResult &execute) {
4810	CScriptVarLinkWorkPtr a;
4811	parent.swap(a);
4812	if(t->tk == '.' \|\| t->tk == '[') {
4813	while(t->tk == '.' \|\| t->tk == '[') {
4814	parent.swap(a);
4815	a = parent.getter(execute); // a is now the "getted" var
4816	if(execute && (a->getVarPtr()->isUndefined() \|\| a->getVarPtr()->isNull())) {
4817	throwError(execute, ReferenceError, a->getName() + " is " + a->toString(execute));
4818	}
4819	string name;
4820	if(t->tk == '.') {
4821	t->match('.');
4822	name = t->tkStr();
4823	t->match(LEX_ID);
4824	} else {
4825	if(execute) {
4826	t->match('[');
4827	name = execute_expression(execute)->toString(execute);
4828	t->match(']');
4829	} else
4830	t->skip(t->getToken().Int());
4831	}
4832	if (execute) {
4833	CScriptVarPtr aVar = a;
4834	a = aVar->findChildWithPrototypeChain(name);
4835	if(!a) {
4836	a(constScriptVar(Undefined), name);
4837	a.setReferencedOwner(aVar);
4838	}
4839	}
4840	}
4841	}
4842	return a;
4843	}
4844
4845	CScriptVarLinkWorkPtr CTinyJS::execute_function_call(CScriptResult &execute) {
4846	CScriptVarLinkWorkPtr parent = execute_literals(execute);
4847	CScriptVarLinkWorkPtr a = execute_member(parent, execute);
4848	while (t->tk == '(') {
4849	if (execute) {
4850	if(a->getVarPtr()->isUndefined() \|\| a->getVarPtr()->isNull())
4851	throwError(execute, ReferenceError, a->getName() + " is " + a->toString(execute));
4852	CScriptVarLinkWorkPtr fnc = a.getter(execute);
4853	if (!fnc->getVarPtr()->isFunction())
4854	throwError(execute, TypeError, a->getName() + " is not a function");
4855	t->match('('); // path += '(';
4856
4857	// grab in all parameters
4858	vector<CScriptVarPtr> arguments;
4859	while(t->tk!=')') {
4860	CScriptVarLinkWorkPtr value = execute_assignment(execute).getter(execute);
4861	// path += (*value)->getString();
4862	if (execute) {
4863	arguments.push_back(value);
4864	}
4865	if (t->tk!=')') { t->match(','); /path+=',';/ }
4866	}
4867	t->match(')'); //path+=')';
4868	// setup a return variable
4869	CScriptVarLinkWorkPtr returnVar;
4870	if(execute) {
4871	if (!parent)
4872	parent = findInScopes("this");
4873	// if no parent use the root-scope
4874	CScriptVarPtr This(parent ? parent->getVarPtr() : (CScriptVarPtr )root);
4875	a = callFunction(execute, a->getVarPtr(), arguments, This);
4876	}
4877	} else {
4878	// function, but not executing - just parse args and be done
4879	t->match('(');
4880	while (t->tk != ')') {
4881	CScriptVarLinkWorkPtr value = execute_base(execute);
4882	// if (t->tk!=')') t->match(',');
4883	}
4884	t->match(')');
4885	}
4886	a = execute_member(parent = a, execute);
4887	}
4888	return a;
4889	}
4890	// R->L: Precedence 3 (in-/decrement) ++ --
4891	// R<-L: Precedence 4 (unary) ! ~ + - typeof void delete
4892	bool CTinyJS::execute_unary_rhs(CScriptResult &execute, CScriptVarLinkWorkPtr& a) {
4893	t->match(t->tk);
4894	a = execute_unary(execute).getter(execute);
4895	if(execute) CheckRightHandVar(execute, a);
4896	return execute;
4897	};
4898	CScriptVarLinkWorkPtr CTinyJS::execute_unary(CScriptResult &execute) {
4899	CScriptVarLinkWorkPtr a;
4900	switch(t->tk) {
4901	case '-':
4902	if(execute_unary_rhs(execute, a))
4903	a(newScriptVar(-a->getVarPtr()->toNumber(execute)));
4904	break;
4905	case '+':
4906	if(execute_unary_rhs(execute, a))
4907	a = newScriptVar(a->getVarPtr()->toNumber(execute));
4908	break;
4909	case '!':
4910	if(execute_unary_rhs(execute, a))
4911	a = constScriptVar(!a->getVarPtr()->toBoolean());
4912	break;
4913	case '~':
4914	if(execute_unary_rhs(execute, a))
4915	a = newScriptVar(~a->getVarPtr()->toNumber(execute));
4916	break;
4917	case LEX_R_TYPEOF:
4918	if(execute_unary_rhs(execute, a))
4919	a = newScriptVar(a->getVarPtr()->getVarType());
4920	break;
4921	case LEX_R_VOID:
4922	if(execute_unary_rhs(execute, a))
4923	a = constScriptVar(Undefined);
4924	break;
4925	case LEX_R_DELETE:
4926	t->match(LEX_R_DELETE); // delete
4927	a = execute_unary(execute); // no getter - delete can remove the accessor
4928	if (execute) {
4929	// !!! no right-hand-check by delete
4930	if(a->isOwned() && a->isConfigurable()) {
4931	a->getOwner()->removeLink(a); // removes the link from owner
4932	a = constScriptVar(true);
4933	}
4934	else
4935	a = constScriptVar(false);
4936	}
4937	break;
4938	case LEX_PLUSPLUS:
4939	case LEX_MINUSMINUS:
4940	{
4941	int op = t->tk;
4942	t->match(op); // pre increment/decrement
4943	CScriptTokenizer::ScriptTokenPosition ErrorPos = t->getPos();
4944	a = execute_function_call(execute);
4945	if (execute) {
4946	if(a->getName().empty())
4947	throwError(execute, SyntaxError, string("invalid ")+(op==LEX_PLUSPLUS ? "increment" : "decrement")+" operand", ErrorPos);
4948	else if(!a->isOwned() && !a.hasReferencedOwner() && !a->getName().empty())
4949	throwError(execute, ReferenceError, a->getName() + " is not defined", ErrorPos);
4950	CScriptVarPtr res = newScriptVar(a.getter(execute)->getVarPtr()->toNumber(execute).add(op==LEX_PLUSPLUS ? 1 : -1));
4951	if(a->isWritable()) {
4952	if(!a->isOwned() && a.hasReferencedOwner() && a.getReferencedOwner()->isExtensible())
4953	a.getReferencedOwner()->addChildOrReplace(a->getName(), res);
4954	else
4955	a.setter(execute, res);
4956	}
4957	a = res;
4958	}
4959	}
4960	break;
4961	default:
4962	a = execute_function_call(execute);
4963	break;
4964	}
4965	// post increment/decrement
4966	if (t->tk==LEX_PLUSPLUS \|\| t->tk==LEX_MINUSMINUS) {
4967	int op = t->tk;
4968	t->match(op);
4969	if (execute) {
4970	if(a->getName().empty())
4971	throwError(execute, SyntaxError, string("invalid ")+(op==LEX_PLUSPLUS ? "increment" : "decrement")+" operand", t->getPrevPos());
4972	else if(!a->isOwned() && !a.hasReferencedOwner() && !a->getName().empty())
4973	throwError(execute, ReferenceError, a->getName() + " is not defined", t->getPrevPos());
4974	CNumber num = a.getter(execute)->getVarPtr()->toNumber(execute);
4975	CScriptVarPtr res = newScriptVar(num.add(op==LEX_PLUSPLUS ? 1 : -1));
4976	if(a->isWritable()) {
4977	if(!a->isOwned() && a.hasReferencedOwner() && a.getReferencedOwner()->isExtensible())
4978	a.getReferencedOwner()->addChildOrReplace(a->getName(), res);
4979	else
4980	a.setter(execute, res);
4981	}
4982	a = newScriptVar(num);
4983	}
4984	}
4985	return a;
4986	}
4987
4988	// L->R: Precedence 5 (term) * / %
4989	CScriptVarLinkWorkPtr CTinyJS::execute_term(CScriptResult &execute) {
4990	CScriptVarLinkWorkPtr a = execute_unary(execute);
4991	if (t->tk=='*' \|\| t->tk=='/' \|\| t->tk=='%') {
4992	CheckRightHandVar(execute, a);
4993	while (t->tk=='*' \|\| t->tk=='/' \|\| t->tk=='%') {
4994	int op = t->tk;
4995	t->match(t->tk);
4996	CScriptVarLinkWorkPtr b = execute_unary(execute); // L->R
4997	if (execute) {
4998	CheckRightHandVar(execute, b);
4999	a = mathsOp(execute, a.getter(execute), b.getter(execute), op);
5000	}
5001	}
5002	}
5003	return a;
5004	}
5005
5006	// L->R: Precedence 6 (addition/subtraction) + -
5007	CScriptVarLinkWorkPtr CTinyJS::execute_expression(CScriptResult &execute) {
5008	CScriptVarLinkWorkPtr a = execute_term(execute);
5009	if (t->tk=='+' \|\| t->tk=='-') {
5010	CheckRightHandVar(execute, a);
5011	while (t->tk=='+' \|\| t->tk=='-') {
5012	int op = t->tk;
5013	t->match(t->tk);
5014	CScriptVarLinkWorkPtr b = execute_term(execute); // L->R
5015	if (execute) {
5016	CheckRightHandVar(execute, b);
5017	a = mathsOp(execute, a.getter(execute), b.getter(execute), op);
5018	}
5019	}
5020	}
5021	return a;
5022	}
5023
5024	// L->R: Precedence 7 (bitwise shift) << >> >>>
5025	CScriptVarLinkWorkPtr CTinyJS::execute_binary_shift(CScriptResult &execute) {
5026	CScriptVarLinkWorkPtr a = execute_expression(execute);
5027	if (t->tk==LEX_LSHIFT \|\| t->tk==LEX_RSHIFT \|\| t->tk==LEX_RSHIFTU) {
5028	CheckRightHandVar(execute, a);
5029	while (t->tk>=LEX_SHIFTS_BEGIN && t->tk<=LEX_SHIFTS_END) {
5030	int op = t->tk;
5031	t->match(t->tk);
5032
5033	CScriptVarLinkWorkPtr b = execute_expression(execute); // L->R
5034	if (execute) {
5035	CheckRightHandVar(execute, a);
5036	// not in-place, so just replace
5037	a = mathsOp(execute, a.getter(execute), b.getter(execute), op);
5038	}
5039	}
5040	}
5041	return a;
5042	}
5043	// L->R: Precedence 8 (relational) < <= > <= in instanceof
5044	// L->R: Precedence 9 (equality) == != === !===
5045	CScriptVarLinkWorkPtr CTinyJS::execute_relation(CScriptResult &execute, int set, int set_n) {
5046	CScriptVarLinkWorkPtr a = set_n ? execute_relation(execute, set_n, 0) : execute_binary_shift(execute);
5047	if ((set==LEX_EQUAL && t->tk>=LEX_RELATIONS_1_BEGIN && t->tk<=LEX_RELATIONS_1_END)
5048	\|\| (set=='<' && (t->tk==LEX_LEQUAL \|\| t->tk==LEX_GEQUAL \|\| t->tk=='<' \|\| t->tk=='>' \|\| t->tk == LEX_R_IN \|\| t->tk == LEX_R_INSTANCEOF))) {
5049	CheckRightHandVar(execute, a);
5050	a = a.getter(execute);
5051	while ((set==LEX_EQUAL && t->tk>=LEX_RELATIONS_1_BEGIN && t->tk<=LEX_RELATIONS_1_END)
5052	\|\| (set=='<' && (t->tk==LEX_LEQUAL \|\| t->tk==LEX_GEQUAL \|\| t->tk=='<' \|\| t->tk=='>' \|\| t->tk == LEX_R_IN \|\| t->tk == LEX_R_INSTANCEOF))) {
5053	int op = t->tk;
5054	t->match(t->tk);
5055	CScriptVarLinkWorkPtr b = set_n ? execute_relation(execute, set_n, 0) : execute_binary_shift(execute); // L->R
5056	if (execute) {
5057	CheckRightHandVar(execute, b);
5058	string nameOf_b = b->getName();
5059	b = b.getter(execute);
5060	if(op == LEX_R_IN) {
5061	if(!b->getVarPtr()->isObject())
5062	throwError(execute, TypeError, "invalid 'in' operand "+nameOf_b);
5063	a(constScriptVar( (bool)b->getVarPtr()->findChildWithPrototypeChain(a->toString(execute))));
5064	} else if(op == LEX_R_INSTANCEOF) {
5065	CScriptVarLinkPtr prototype = b->getVarPtr()->findChild(TINYJS_PROTOTYPE_CLASS);
5066	if(!prototype)
5067	throwError(execute, TypeError, "invalid 'instanceof' operand "+nameOf_b);
5068	else {
5069	unsigned int uniqueID = getUniqueID();
5070	CScriptVarPtr object = a->getVarPtr()->findChild(TINYJS___PROTO___VAR);
5071	while( object && object!=prototype->getVarPtr() && object->getTempraryID() != uniqueID) {
5072	object->setTemporaryID(uniqueID); // prevents recursions
5073	object = object->findChild(TINYJS___PROTO___VAR);
5074	}
5075	a(constScriptVar(object && object==prototype->getVarPtr()));
5076	}
5077	} else
5078	a = mathsOp(execute, a, b, op);
5079	}
5080	}
5081	}
5082	return a;
5083	}
5084
5085	// L->R: Precedence 10 (bitwise-and) &
5086	// L->R: Precedence 11 (bitwise-xor) ^
5087	// L->R: Precedence 12 (bitwise-or) \|
5088	CScriptVarLinkWorkPtr CTinyJS::execute_binary_logic(CScriptResult &execute, int op, int op_n1, int op_n2) {
5089	CScriptVarLinkWorkPtr a = op_n1 ? execute_binary_logic(execute, op_n1, op_n2, 0) : execute_relation(execute);
5090	if (t->tk==op) {
5091	CheckRightHandVar(execute, a);
5092	a = a.getter(execute);
5093	while (t->tk==op) {
5094	t->match(t->tk);
5095	CScriptVarLinkWorkPtr b = op_n1 ? execute_binary_logic(execute, op_n1, op_n2, 0) : execute_relation(execute); // L->R
5096	if (execute) {
5097	CheckRightHandVar(execute, b);
5098	a = mathsOp(execute, a, b.getter(execute), op);
5099	}
5100	}
5101	}
5102	return a;
5103	}
5104	// L->R: Precedence 13 ==> (logical-and) &&
5105	// L->R: Precedence 14 ==> (logical-or) \|\|
5106	CScriptVarLinkWorkPtr CTinyJS::execute_logic(CScriptResult &execute, int op /= LEX_OROR/, int op_n /= LEX_ANDAND/) {
5107	CScriptVarLinkWorkPtr a = op_n ? execute_logic(execute, op_n, 0) : execute_binary_logic(execute);
5108	if (t->tk==op) {
5109	if(execute) {
5110	CScriptVarLinkWorkPtr b;
5111	CheckRightHandVar(execute, a);
5112	a(a.getter(execute)); // rebuild a
5113	do {
5114	if(execute && (op==LEX_ANDAND ? a->toBoolean() : !a->toBoolean())) {
5115	t->match(t->tk);
5116	b = op_n ? execute_logic(execute, op_n, 0) : execute_binary_logic(execute);
5117	CheckRightHandVar(execute, b); a(b.getter(execute)); // rebuild a
5118	} else
5119	t->skip(t->getToken().Int());
5120	} while(t->tk==op);
5121	} else
5122	t->skip(t->getToken().Int());
5123	}
5124	return a;
5125	}
5126
5127	// L<-R: Precedence 15 (condition) ?:
5128	CScriptVarLinkWorkPtr CTinyJS::execute_condition(CScriptResult &execute) {
5129	CScriptVarLinkWorkPtr a = execute_logic(execute);
5130	if (t->tk=='?') {
5131	CheckRightHandVar(execute, a);
5132	bool cond = execute && a.getter(execute)->toBoolean();
5133	if(execute) {
5134	if(cond) {
5135	t->match('?');
5136	a = execute_condition(execute);
5137	t->check(':');
5138	t->skip(t->getToken().Int());
5139	} else {
5140	CScriptVarLinkWorkPtr b;
5141	t->skip(t->getToken().Int());
5142	t->match(':');
5143	return execute_condition(execute);
5144	}
5145	} else {
5146	t->skip(t->getToken().Int());
5147	t->skip(t->getToken().Int());
5148	}
5149	}
5150	return a;
5151	}
5152
5153	// L<-R: Precedence 16 (assignment) = += -= *= /= %= <<= >>= >>>= &= \|= ^=
5154	// now we can return CScriptVarLinkPtr execute_assignment returns always no setters/getters
5155	// force life of the Owner is no more needed
5156	CScriptVarLinkPtr CTinyJS::execute_assignment(CScriptResult &execute) {
5157	return execute_assignment(execute_condition(execute), execute);
5158	}
5159	CScriptVarLinkPtr CTinyJS::execute_assignment(CScriptVarLinkWorkPtr lhs, CScriptResult &execute) {
5160	if (t->tk=='=' \|\| (t->tk>=LEX_ASSIGNMENTS_BEGIN && t->tk<=LEX_ASSIGNMENTS_END) ) {
5161	int op = t->tk;
5162	CScriptTokenizer::ScriptTokenPosition leftHandPos = t->getPos();
5163	t->match(t->tk);
5164	CScriptVarLinkWorkPtr rhs = execute_assignment(execute).getter(execute); // L<-R
5165	if (execute) {
5166	if (!lhs->isOwned() && !lhs.hasReferencedOwner() && lhs->getName().empty()) {
5167	throw new CScriptException(ReferenceError, "invalid assignment left-hand side (at runtime)", t->currentFile, leftHandPos.currentLine(), leftHandPos.currentColumn());
5168	} else if (op != '=' && !lhs->isOwned()) {
5169	throwError(execute, ReferenceError, lhs->getName() + " is not defined");
5170	}
5171	else if(lhs->isWritable()) {
5172	if (op=='=') {
5173	if (!lhs->isOwned()) {
5174	CScriptVarPtr fakedOwner = lhs.getReferencedOwner();
5175	if(fakedOwner) {
5176	if(!fakedOwner->isExtensible())
5177	return rhs->getVarPtr();
5178	lhs = fakedOwner->addChildOrReplace(lhs->getName(), lhs);
5179	} else
5180	lhs = root->addChildOrReplace(lhs->getName(), lhs);
5181	}
5182	lhs.setter(execute, rhs);
5183	return rhs->getVarPtr();
5184	} else {
5185	CScriptVarPtr result;
5186	static int assignments[] = {'+', '-', '*', '/', '%', LEX_LSHIFT, LEX_RSHIFT, LEX_RSHIFTU, '&', '\|', '^'};
5187	result = mathsOp(execute, lhs, rhs, assignments[op-LEX_PLUSEQUAL]);
5188	lhs.setter(execute, result);
5189	return result;
5190	}
5191	} else {
5192	// lhs is not writable we ignore lhs & use rhs
5193	return rhs->getVarPtr();
5194	}
5195	}
5196	}
5197	else
5198	CheckRightHandVar(execute, lhs);
5199	return lhs.getter(execute);
5200	}
5201	// L->R: Precedence 17 (comma) ,
5202	CScriptVarLinkPtr CTinyJS::execute_base(CScriptResult &execute) {
5203	CScriptVarLinkPtr a;
5204	for(;;)
5205	{
5206	a = execute_assignment(execute); // L->R
5207	if (t->tk == ',') {
5208	t->match(',');
5209	} else
5210	break;
5211	}
5212	return a;
5213	}
5214	void CTinyJS::execute_block(CScriptResult &execute) {
5215	if(execute) {
5216	t->match('{');
5217	CScopeControl ScopeControl(this);
5218	if(t->tk==LEX_T_FORWARD) // add a LetScope only if needed
5219	ScopeControl.addLetScope();
5220	while (t->tk && t->tk!='}')
5221	execute_statement(execute);
5222	t->match('}');
5223	// scopes.pop_back();
5224	}
5225	else
5226	t->skip(t->getToken().Int());
5227	}
5228	void CTinyJS::execute_statement(CScriptResult &execute) {
5229	switch(t->tk) {
5230	case '{': /* A block of code */
5231	execute_block(execute);
5232	break;
5233	case ';': /* Empty statement - to allow things like ;;; */
5234	t->match(';');
5235	break;
5236	case LEX_T_FORWARD:
5237	{
5238	CScriptVarPtr in_scope = scope()->scopeLet();
5239	STRING_SET_t *varNames = t->getToken().Forwarder().varNames;
5240	for(int i=0; i<CScriptTokenDataForwards::END; ++i) {
5241	for(STRING_SET_it it=varNames[i].begin(); it!=varNames[i].end(); ++it) {
5242	CScriptVarLinkPtr a = in_scope->findChild(*it);
5243	if(!a) in_scope->addChild(*it, constScriptVar(Undefined), i==CScriptTokenDataForwards::CONSTS ? SCRIPTVARLINK_CONSTDEFAULT : SCRIPTVARLINK_VARDEFAULT);
5244	}
5245	in_scope = scope()->scopeVar();
5246	}
5247	CScriptTokenDataForwards::FNC_SET_t &functions = t->getToken().Forwarder().functions;
5248	for(CScriptTokenDataForwards::FNC_SET_it it=functions.begin(); it!=functions.end(); ++it) {
5249	CScriptVarLinkWorkPtr funcVar = parseFunctionDefinition(*it);
5250	in_scope->addChildOrReplace(funcVar->getName(), funcVar, SCRIPTVARLINK_VARDEFAULT);
5251	}
5252	t->match(LEX_T_FORWARD);
5253	}
5254	break;
5255	case LEX_R_VAR:
5256	case LEX_R_LET:
5257	case LEX_R_CONST:
5258	if(execute)
5259	{
5260	CScopeControl ScopeControl(this);
5261	bool isLet = t->tk==LEX_R_LET, let_ext=false;
5262	t->match(t->tk);
5263	if(isLet && t->tk=='(') {
5264	let_ext = true;
5265	t->match('(');
5266	t->check(LEX_T_FORWARD);
5267	ScopeControl.addLetScope();
5268	execute_statement(execute); // forwarder
5269	}
5270	execute_var_init(let_ext, execute);
5271	if(let_ext) {
5272	t->match(')');
5273	execute_statement(execute);
5274	} else
5275	t->match(';');
5276	} else
5277	t->skip(t->getToken().Int());
5278	break;
5279	case LEX_R_WITH:
5280	if(execute) {
5281	t->match(LEX_R_WITH);
5282	t->match('(');
5283	CScriptVarLinkPtr var = execute_base(execute);
5284	t->match(')');
5285	CScopeControl ScopeControl(this);
5286	ScopeControl.addWithScope(var);
5287	execute_statement(execute);
5288	} else
5289	t->skip(t->getToken().Int());
5290	break;
5291	case LEX_R_IF:
5292	if(execute) {
5293	t->match(LEX_R_IF);
5294	t->match('(');
5295	bool cond = execute_base(execute)->toBoolean();
5296	t->match(')');
5297	if(cond && execute) {
5298	t->match(LEX_T_SKIP);
5299	execute_statement(execute);
5300	} else {
5301	t->check(LEX_T_SKIP);
5302	t->skip(t->getToken().Int());
5303	}
5304	if (t->tk==LEX_R_ELSE) {
5305	if(!cond && execute) {
5306	t->match(LEX_R_ELSE);
5307	execute_statement(execute);
5308	}
5309	else
5310	t->skip(t->getToken().Int());
5311	}
5312	} else
5313	t->skip(t->getToken().Int());
5314	break;
5315	case LEX_T_FOR_IN:
5316	{
5317	CScriptTokenDataLoop &LoopData = t->getToken().Loop();
5318	t->match(LEX_T_FOR_IN);
5319	if(!execute) break;
5320
5321	CScopeControl ScopeControl(this);
5322	if(LoopData.init.size()) {
5323	t->pushTokenScope(LoopData.init);
5324	ScopeControl.addLetScope();
5325	execute_statement(execute); // forwarder
5326	}
5327	if(!execute) break;
5328
5329	t->pushTokenScope(LoopData.iter);
5330	CScriptVarPtr for_in_var = execute_base(execute);
5331
5332	if(!execute) break;
5333
5334	CScriptVarPtr Iterator(for_in_var->toIterator(execute, LoopData.type!=CScriptTokenDataLoop::FOR_IN ? 2:1));
5335	CScriptVarFunctionPtr Iterator_next(Iterator->findChildWithPrototypeChain("next").getter(execute));
5336	if(execute && !Iterator_next) throwError(execute, TypeError, "'" + for_in_var->toString(execute) + "' is not iterable", t->getPrevPos());
5337	if(!execute) break;
5338	CScriptResult tmp_execute;
5339	for(;;) {
5340	bool old_haveTry = haveTry;
5341	haveTry = true;
5342	tmp_execute.set(CScriptResult::Normal, Iterator);
5343	t->pushTokenScope(LoopData.condition);
5344	execute_statement(tmp_execute);
5345	haveTry = old_haveTry;
5346	if(tmp_execute.isThrow()){
5347	if(tmp_execute.value != constStopIteration) {
5348	if(!haveTry)
5349	throw new CScriptException("uncaught exception: ", t->currentFile, t->currentLine(), t->currentColumn());
5350	else
5351	execute = tmp_execute;
5352	}
5353	break;
5354	}
5355	t->pushTokenScope(LoopData.body);
5356	execute_statement(execute);
5357	if(!execute) {
5358	bool Continue = false;
5359	if(execute.isBreakContinue()
5360	&&
5361	(execute.target.empty() \|\| find(LoopData.labels.begin(), LoopData.labels.end(), execute.target) != LoopData.labels.end())) {
5362	Continue = execute.isContinue();
5363	execute.set(CScriptResult::Normal, false);
5364	}
5365	if(!Continue) break;
5366	}
5367	}
5368	}
5369	break;
5370	case LEX_T_LOOP:
5371	{
5372	CScriptTokenDataLoop &LoopData = t->getToken().Loop();
5373	t->match(LEX_T_LOOP);
5374	if(!execute) break;
5375
5376	CScopeControl ScopeControl(this);
5377	if(LoopData.type == CScriptTokenDataLoop::FOR) {
5378	CScriptResult tmp_execute;
5379	t->pushTokenScope(LoopData.init);
5380	if(t->tk == LEX_T_FORWARD) {
5381	ScopeControl.addLetScope();
5382	execute_statement(tmp_execute); // forwarder
5383	}
5384	if(t->tk==LEX_R_VAR \|\| t->tk==LEX_R_LET)
5385	execute_statement(tmp_execute); // initialisation
5386	else
5387	execute_base(tmp_execute); // initialisation
5388	if(!execute(tmp_execute)) break;
5389	}
5390
5391	bool loopCond = true; // Empty Condition -->always true
5392	if(LoopData.type != CScriptTokenDataLoop::DO && LoopData.condition.size()) {
5393	t->pushTokenScope(LoopData.condition);
5394	loopCond = execute_base(execute)->toBoolean();
5395	if(!execute) break;
5396	}
5397	while (loopCond && execute) {
5398	t->pushTokenScope(LoopData.body);
5399	execute_statement(execute);
5400	if(!execute) {
5401	bool Continue = false;
5402	if(execute.isBreakContinue()
5403	&&
5404	(execute.target.empty() \|\| find(LoopData.labels.begin(), LoopData.labels.end(), execute.target) != LoopData.labels.end())) {
5405	Continue = execute.isContinue();
5406	execute.set(CScriptResult::Normal, false);
5407	}
5408	if(!Continue) break;
5409	}
5410	if(LoopData.type == CScriptTokenDataLoop::FOR && execute && LoopData.iter.size()) {
5411	t->pushTokenScope(LoopData.iter);
5412	execute_base(execute);
5413	}
5414	if(execute && LoopData.condition.size()) {
5415	t->pushTokenScope(LoopData.condition);
5416	loopCond = execute_base(execute)->toBoolean();
5417	}
5418	}
5419	}
5420	break;
5421	case LEX_R_BREAK:
5422	case LEX_R_CONTINUE:
5423	if (execute)
5424	{
5425	CScriptResult::TYPE type = t->tk==LEX_R_BREAK ? CScriptResult::Break : CScriptResult::Continue;
5426	string label;
5427	t->match(t->tk);
5428	if(t->tk == LEX_ID) {
5429	label = t->tkStr();
5430	t->match(LEX_ID);
5431	}
5432	t->match(';');
5433	execute.set(type, label);
5434	} else
5435	t->skip(t->getToken().Int());
5436	break;
5437	case LEX_R_RETURN:
5438	if (execute) {
5439	t->match(LEX_R_RETURN);
5440	CScriptVarPtr result;
5441	if (t->tk != ';')
5442	result = execute_base(execute);
5443	t->match(';');
5444	execute.set(CScriptResult::Return, result);
5445	} else
5446	t->skip(t->getToken().Int());
5447	break;
5448	case LEX_R_FUNCTION:
5449	if(execute) {
5450	CScriptVarLinkWorkPtr funcVar = parseFunctionDefinition(t->getToken());
5451	scope()->scopeVar()->addChildOrReplace(funcVar->getName(), funcVar, SCRIPTVARLINK_VARDEFAULT);
5452	}
5453	case LEX_T_FUNCTION_PLACEHOLDER:
5454	t->match(t->tk);
5455	break;
5456	case LEX_T_TRY:
5457	if(execute) {
5458	CScriptTokenDataTry &TryData = t->getToken().Try();
5459
5460	bool old_haveTry = haveTry;
5461	haveTry = true;
5462
5463	// execute try-block
5464	t->pushTokenScope(TryData.tryBlock);
5465	execute_block(execute);
5466
5467	bool isThrow = execute.isThrow();
5468
5469	if(isThrow) {
5470	// execute catch-blocks
5471	for(CScriptTokenDataTry::CatchBlock_it catchBlock = TryData.catchBlocks.begin(); catchBlock!=TryData.catchBlocks.end(); catchBlock++) {
5472	CScriptResult catch_execute;
5473	CScopeControl ScopeControl(this);
5474	ScopeControl.addLetScope();
5475	t->pushTokenScope(catchBlock->condition); // condition;
5476	execute_statement(catch_execute); // forwarder
5477	assign_destructuring_var(0, *catchBlock->indentifiers, execute.value, catch_execute);
5478	bool condition = true;
5479	if(catchBlock->condition.size()>1)
5480	condition = execute_base(catch_execute)->toBoolean();
5481	if(!catch_execute) {
5482	execute = catch_execute;
5483	break;
5484	} else if(condition) {
5485	t->pushTokenScope(catchBlock->block); // condition;
5486	execute_block(catch_execute);
5487	execute = catch_execute;
5488	break;
5489	}
5490	}
5491	}
5492	if(TryData.finallyBlock.size()) {
5493	CScriptResult finally_execute; // alway execute finally-block
5494	t->pushTokenScope(TryData.finallyBlock); // finally;
5495	execute_block(finally_execute);
5496	execute(finally_execute);
5497	}
5498	// restore haveTry
5499	haveTry = old_haveTry;
5500	if(execute.isThrow() && !haveTry) { // (exception in catch or finally or no catch-clause found) and no parent try-block
5501	if(execute.value->isError())
5502	throw CScriptVarErrorPtr(execute.value)->toCScriptException();
5503	throw new CScriptException("uncaught exception: '"+execute.value->toString()+"'", t->currentFile, t->currentLine(), t->currentColumn());
5504	}
5505
5506	}
5507	t->match(LEX_T_TRY);
5508	break;
5509	case LEX_R_THROW:
5510	if(execute) {
5511	CScriptTokenizer::ScriptTokenPosition tokenPos = t->getPos();
5512	// int tokenStart = t->getToken().pos;
5513	t->match(LEX_R_THROW);
5514	CScriptVarPtr a = execute_base(execute);
5515	if(execute) {
5516	if(haveTry)
5517	execute.set(CScriptResult::Throw, a);
5518	else
5519	throw new CScriptException("uncaught exception: '"+a->toString(execute)+"'", t->currentFile, tokenPos.currentLine(), tokenPos.currentColumn());
5520	}
5521	} else
5522	t->skip(t->getToken().Int());
5523	break;
5524	case LEX_R_SWITCH:
5525	if(execute) {
5526	t->match(LEX_R_SWITCH);
5527	t->match('(');
5528	CScriptVarPtr SwitchValue = execute_base(execute);
5529	t->match(')');
5530	if(execute) {
5531	t->match('{');
5532	CScopeControl ScopeControl(this);
5533	if(t->tk == LEX_T_FORWARD) {
5534	ScopeControl.addLetScope(); // add let-scope only if needed
5535	execute_statement(execute); // execute forwarder
5536	}
5537	CScriptTokenizer::ScriptTokenPosition defaultStart = t->getPos();
5538	bool hasDefault = false, found = false;
5539	while (t->tk) {
5540	switch(t->tk) {
5541	case LEX_R_CASE:
5542	if(!execute)
5543	t->skip(t->getToken().Int()); // skip up to'}'
5544	else if(found) { // execute && found
5545	t->match(LEX_R_CASE);
5546	t->skip(t->getToken().Int()); // skip up to ':'
5547	t->match(':'); // skip ':' and execute all after ':'
5548	} else { // execute && !found
5549	t->match(LEX_R_CASE);
5550	t->match(LEX_T_SKIP); // skip 'L_T_SKIP'
5551	CScriptVarLinkPtr CaseValue = execute_base(execute);
5552	CaseValue = mathsOp(execute, CaseValue, SwitchValue, LEX_TYPEEQUAL);
5553	if(execute) {
5554	found = CaseValue->toBoolean();
5555	if(found) t->match(':'); // skip ':' and execute all after ':'
5556	else t->skip(t->getToken().Int()); // skip up to next 'case'/'default' or '}'
5557	} else
5558	t->skip(t->getToken().Int()); // skip up to next 'case'/'default' or '}'
5559	}
5560	break;
5561	case LEX_R_DEFAULT:
5562	if(!execute)
5563	t->skip(t->getToken().Int()); // skip up to'}' NOTE: no extra 'L_T_SKIP' for skipping tp ':'
5564	else {
5565	t->match(LEX_R_DEFAULT);
5566	if(found)
5567	t->match(':'); // skip ':' and execute all after ':'
5568	else {
5569	hasDefault = true; // in fist pass: skip default-area
5570	defaultStart = t->getPos(); // remember pos of default
5571	t->skip(t->getToken().Int()); // skip up to next 'case' or '}'
5572	}
5573	}
5574	break;
5575	case '}':
5576	if(execute && !found && hasDefault) { // if not found & have default -> execute default
5577	found = true;
5578	t->setPos(defaultStart);
5579	t->match(':');
5580	} else
5581	goto end_while; // goto isn't fine but C supports no "break lable;"
5582	break;
5583	default:
5584	ASSERT(found);
5585	execute_statement(execute);
5586	break;
5587	}
5588	}
5589	end_while:
5590	t->match('}');
5591	if(execute.isBreak() && execute.target.empty()) {
5592	execute.set(CScriptResult::Normal);
5593	}
5594	} else
5595	t->skip(t->getToken().Int());
5596	} else
5597	t->skip(t->getToken().Int());
5598	break;
5599	case LEX_T_DUMMY_LABEL:
5600	t->match(LEX_T_DUMMY_LABEL);
5601	t->match(':');
5602	break;
5603	case LEX_T_LABEL:
5604	{
5605	STRING_VECTOR_t Labels;
5606	while(t->tk == LEX_T_LABEL) {
5607	Labels.push_back(t->tkStr());
5608	t->match(LEX_T_LABEL);
5609	t->match(':');
5610	}
5611	if(execute) {
5612	execute_statement(execute);
5613	if(execute.isBreak() && find(Labels.begin(), Labels.end(), execute.target) != Labels.end()) { // break this label
5614	execute.set(CScriptResult::Normal, false);
5615	}
5616	}
5617	else
5618	execute_statement(execute);
5619	}
5620	break;
5621	case LEX_EOF:
5622	t->match(LEX_EOF);
5623	break;
5624	default:
5625	if(execute) {
5626	t->match(LEX_T_SKIP);
5627	/* Execute a simple statement that only contains basic arithmetic... */
5628	CScriptVarPtr ret = execute_base(execute);
5629	if(execute) execute.set(CScriptResult::Normal, CScriptVarPtr(ret));
5630	t->match(';');
5631	} else
5632	t->skip(t->getToken().Int());
5633	break;
5634	}
5635	}
5636
5637
5638	/// Finds a child, looking recursively up the scopes
5639	CScriptVarLinkPtr CTinyJS::findInScopes(const string &childName) {
5640	return scope()->findInScopes(childName);
5641	}
5642
5643	//////////////////////////////////////////////////////////////////////////
5644	/// Object
5645	//////////////////////////////////////////////////////////////////////////
5646
5647	void CTinyJS::native_Object(const CFunctionsScopePtr &c, void *data) {
5648	c->setReturnVar(c->getArgument(0)->toObject());
5649	}
5650	void CTinyJS::native_Object_getPrototypeOf(const CFunctionsScopePtr &c, void *data) {
5651	if(c->getArgumentsLength()>=1) {
5652	CScriptVarPtr obj = c->getArgument(0);
5653	if(obj->isObject()) {
5654	c->setReturnVar(obj->findChild(TINYJS___PROTO___VAR));
5655	return;
5656	}
5657	}
5658	c->throwError(TypeError, "argument is not an object");
5659	}
5660
5661	void CTinyJS::native_Object_setObjectSecure(const CFunctionsScopePtr &c, void *data) {
5662	CScriptVarPtr obj = c->getArgument(0);
5663	if(!obj->isObject()) c->throwError(TypeError, "argument is not an object");
5664	if(data==(void*)2)
5665	obj->freeze();
5666	else if(data==(void*)1)
5667	obj->seal();
5668	else
5669	obj->preventExtensions();
5670	c->setReturnVar(obj);
5671	}
5672
5673	void CTinyJS::native_Object_isSecureObject(const CFunctionsScopePtr &c, void *data) {
5674	CScriptVarPtr obj = c->getArgument(0);
5675	if(!obj->isObject()) c->throwError(TypeError, "argument is not an object");
5676	bool ret;
5677	if(data==(void*)2)
5678	ret = obj->isFrozen();
5679	else if(data==(void*)1)
5680	ret = obj->isSealed();
5681	else
5682	ret = obj->isExtensible();
5683	c->setReturnVar(constScriptVar(ret));
5684	}
5685
5686	void CTinyJS::native_Object_keys(const CFunctionsScopePtr &c, void *data) {
5687	CScriptVarPtr obj = c->getArgument(0);
5688	if(!obj->isObject()) c->throwError(TypeError, "argument is not an object");
5689	CScriptVarPtr returnVar = c->newScriptVar(Array);
5690	c->setReturnVar(returnVar);
5691
5692	STRING_SET_t keys;
5693	obj->keys(keys, data==0);
5694
5695	uint32_t idx=0;
5696	for(STRING_SET_it it=keys.begin(); it!=keys.end(); ++it)
5697	returnVar->setArrayIndex(idx++, newScriptVar(*it));
5698	}
5699
5700	void CTinyJS::native_Object_getOwnPropertyDescriptor(const CFunctionsScopePtr &c, void *data) {
5701	CScriptVarPtr obj = c->getArgument(0);
5702	if(!obj->isObject()) c->throwError(TypeError, "argument is not an object");
5703	c->setReturnVar(obj->getOwnPropertyDescriptor(c->getArgument(1)->toString()));
5704	}
5705
5706	void CTinyJS::native_Object_defineProperty(const CFunctionsScopePtr &c, void *data) {
5707	CScriptVarPtr obj = c->getArgument(0);
5708	if(!obj->isObject()) c->throwError(TypeError, "argument is not an object");
5709	string name = c->getArgument(1)->toString();
5710	CScriptVarPtr attributes = c->getArgument(2);
5711	if(!attributes->isObject()) c->throwError(TypeError, "attributes is not an object");
5712	const char *err = obj->defineProperty(name, attributes);
5713	if(err) c->throwError(TypeError, err);
5714	c->setReturnVar(obj);
5715	}
5716
5717	void CTinyJS::native_Object_defineProperties(const CFunctionsScopePtr &c, void *data) {
5718	bool ObjectCreate = data!=0;
5719	CScriptVarPtr obj = c->getArgument(0);
5720	if(ObjectCreate) {
5721	if(!obj->isObject() && !obj->isNull()) c->throwError(TypeError, "argument is not an object or null");
5722	obj = newScriptVar(Object, obj);
5723	} else
5724	if(!obj->isObject()) c->throwError(TypeError, "argument is not an object");
5725	c->setReturnVar(obj);
5726	if(c->getArrayLength()<2) {
5727	if(ObjectCreate) return;
5728	c->throwError(TypeError, "Object.defineProperties requires 2 arguments");
5729	}
5730
5731	CScriptVarPtr properties = c->getArgument(1);
5732
5733	STRING_SET_t names;
5734	properties->keys(names, true);
5735
5736	for(STRING_SET_it it=names.begin(); it!=names.end(); ++it) {
5737	CScriptVarPtr attributes = properties->findChildWithStringChars(*it).getter();
5738	if(!attributes->isObject()) c->throwError(TypeError, "descriptor for "+*it+" is not an object");
5739	const char err = obj->defineProperty(it, attributes);
5740	if(err) c->throwError(TypeError, err);
5741	}
5742	}
5743
5744
5745	//////////////////////////////////////////////////////////////////////////
5746	/// Object.prototype
5747	//////////////////////////////////////////////////////////////////////////
5748
5749	void CTinyJS::native_Object_prototype_hasOwnProperty(const CFunctionsScopePtr &c, void *data) {
5750	CScriptVarPtr This = c->getArgument("this");
5751	string PropStr = c->getArgument("prop")->toString();
5752	CScriptVarLinkPtr Prop = This->findChild(PropStr);
5753	bool res = Prop && !Prop->getVarPtr()->isUndefined();
5754	if(!res) {
5755	CScriptVarStringPtr This_asString = This->getRawPrimitive();
5756	if(This_asString) {
5757	uint32_t Idx = isArrayIndex(PropStr);
5758	res = Idx!=uint32_t(-1) && Idx<This_asString->stringLength();
5759	}
5760	}
5761	c->setReturnVar(c->constScriptVar(res));
5762	}
5763	void CTinyJS::native_Object_prototype_valueOf(const CFunctionsScopePtr &c, void *data) {
5764	c->setReturnVar(c->getArgument("this")->valueOf_CallBack());
5765	}
5766	void CTinyJS::native_Object_prototype_toString(const CFunctionsScopePtr &c, void *data) {
5767	CScriptResult execute;
5768	int radix = 10;
5769	if(c->getArgumentsLength()>=1) radix = c->getArgument("radix")->toNumber().toInt32();
5770	c->setReturnVar(c->getArgument("this")->toString_CallBack(execute, radix));
5771	if(!execute) {
5772	// TODO
5773	}
5774	}
5775
5776	//////////////////////////////////////////////////////////////////////////
5777	/// Array
5778	//////////////////////////////////////////////////////////////////////////
5779
5780	void CTinyJS::native_Array(const CFunctionsScopePtr &c, void *data) {
5781	CScriptVarPtr returnVar = c->newScriptVar(Array);
5782	c->setReturnVar(returnVar);
5783	int length = c->getArgumentsLength();
5784	CScriptVarPtr Argument_0_Var = c->getArgument(0);
5785	if(data!=0 && length == 1 && Argument_0_Var->isNumber()) {
5786	CNumber Argument_0 = Argument_0_Var->toNumber();
5787	uint32_t new_size = Argument_0.toUInt32();
5788	if(Argument_0.isFinite() && Argument_0 == new_size)
5789	returnVar->setArrayIndex(new_size-1, constScriptVar(Undefined));
5790	else
5791	c->throwError(RangeError, "invalid array length");
5792	} else for(int i=0; i<length; i++)
5793	returnVar->setArrayIndex(i, c->getArgument(i));
5794	}
5795
5796	//////////////////////////////////////////////////////////////////////////
5797	/// String
5798	//////////////////////////////////////////////////////////////////////////
5799
5800	void CTinyJS::native_String(const CFunctionsScopePtr &c, void *data) {
5801	CScriptVarPtr arg;
5802	if(c->getArgumentsLength()==0)
5803	arg = newScriptVar("");
5804	else
5805	arg = newScriptVar(c->getArgument(0)->toString());
5806	if(data)
5807	c->setReturnVar(arg->toObject());
5808	else
5809	c->setReturnVar(arg);
5810	}
5811
5812
5813	//////////////////////////////////////////////////////////////////////////
5814	/// RegExp
5815	//////////////////////////////////////////////////////////////////////////
5816	#ifndef NO_REGEXP
5817
5818	void CTinyJS::native_RegExp(const CFunctionsScopePtr &c, void *data) {
5819	int arglen = c->getArgumentsLength();
5820	string RegExp, Flags;
5821	if(arglen>=1) {
5822	RegExp = c->getArgument(0)->toString();
5823	try { regex(RegExp, regex_constants::ECMAScript); } catch(regex_error e) {
5824	c->throwError(SyntaxError, string(e.what())+" - "+CScriptVarRegExp::ErrorStr(e.code()));
5825	}
5826	if(arglen>=2) {
5827	Flags = c->getArgument(1)->toString();
5828	string::size_type pos = Flags.find_first_not_of("gimy");
5829	if(pos != string::npos) {
5830	c->throwError(SyntaxError, string("invalid regular expression flag ")+Flags[pos]);
5831	}
5832	}
5833	}
5834	c->setReturnVar(newScriptVar(RegExp, Flags));
5835	}
5836	#endif /* NO_REGEXP */
5837
5838	//////////////////////////////////////////////////////////////////////////
5839	/// Number
5840	//////////////////////////////////////////////////////////////////////////
5841
5842	void CTinyJS::native_Number(const CFunctionsScopePtr &c, void *data) {
5843	CScriptVarPtr arg;
5844	if(c->getArgumentsLength()==0)
5845	arg = newScriptVar(0);
5846	else
5847	arg = newScriptVar(c->getArgument(0)->toNumber());
5848	if(data)
5849	c->setReturnVar(arg->toObject());
5850	else
5851	c->setReturnVar(arg);
5852	}
5853
5854
5855	//////////////////////////////////////////////////////////////////////////
5856	/// Boolean
5857	//////////////////////////////////////////////////////////////////////////
5858
5859	void CTinyJS::native_Boolean(const CFunctionsScopePtr &c, void *data) {
5860	CScriptVarPtr arg;
5861	if(c->getArgumentsLength()==0)
5862	arg = constScriptVar(false);
5863	else
5864	arg = constScriptVar(c->getArgument(0)->toBoolean());
5865	if(data)
5866	c->setReturnVar(arg->toObject());
5867	else
5868	c->setReturnVar(arg);
5869	}
5870
5871	//////////////////////////////////////////////////////////////////////////
5872	/// Iterator
5873	//////////////////////////////////////////////////////////////////////////
5874
5875	void CTinyJS::native_Iterator(const CFunctionsScopePtr &c, void *data) {
5876	if(c->getArgumentsLength()<1) c->throwError(TypeError, "missing argument 0 when calling function Iterator");
5877	c->setReturnVar(c->getArgument(0)->toIterator(c->getArgument(1)->toBoolean()?1:3));
5878	}
5879
5880
5881	//////////////////////////////////////////////////////////////////////////
5882	/// Function
5883	//////////////////////////////////////////////////////////////////////////
5884
5885	void CTinyJS::native_Function(const CFunctionsScopePtr &c, void *data) {
5886	int length = c->getArgumentsLength();
5887	string params, body;
5888	if(length>=1)
5889	body = c->getArgument(length-1)->toString();
5890	if(length>=2) {
5891	params = c->getArgument(0)->toString();
5892	for(int i=1; i<length-1; i++)
5893	{
5894	params.append(",");
5895	params.append(c->getArgument(i)->toString());
5896	}
5897	}
5898	c->setReturnVar(parseFunctionsBodyFromString(params,body));
5899	}
5900
5901	void CTinyJS::native_Function_prototype_call(const CFunctionsScopePtr &c, void *data) {
5902	int length = c->getArgumentsLength();
5903	CScriptVarPtr Fnc = c->getArgument("this");
5904	if(!Fnc->isFunction()) c->throwError(TypeError, "Function.prototype.call called on incompatible Object");
5905	CScriptVarPtr This = c->getArgument(0);
5906	vector<CScriptVarPtr> Args;
5907	for(int i=1; i<length; i++)
5908	Args.push_back(c->getArgument(i));
5909	c->setReturnVar(callFunction(Fnc, Args, This));
5910	}
5911	void CTinyJS::native_Function_prototype_apply(const CFunctionsScopePtr &c, void *data) {
5912	int length=0;
5913	CScriptVarPtr Fnc = c->getArgument("this");
5914	if(!Fnc->isFunction()) c->throwError(TypeError, "Function.prototype.apply called on incompatible Object");
5915	// Argument_0
5916	CScriptVarPtr This = c->getArgument(0)->toObject();
5917	if(This->isNull() \|\| This->isUndefined()) This=root;
5918	// Argument_1
5919	CScriptVarPtr Array = c->getArgument(1);
5920	if(!Array->isNull() && !Array->isUndefined()) {
5921	CScriptVarLinkWorkPtr Length = Array->findChild("length");
5922	if(!Length) c->throwError(TypeError, "second argument to Function.prototype.apply must be an array or an array like object");
5923	length = Length.getter()->toNumber().toInt32();
5924	}
5925	vector<CScriptVarPtr> Args;
5926	for(int i=0; i<length; i++) {
5927	CScriptVarLinkPtr value = Array->findChild(int2string(i));
5928	if(value) Args.push_back(value);
5929	else Args.push_back(constScriptVar(Undefined));
5930	}
5931	c->setReturnVar(callFunction(Fnc, Args, This));
5932	}
5933	void CTinyJS::native_Function_prototype_bind(const CFunctionsScopePtr &c, void *data) {
5934	int length = c->getArgumentsLength();
5935	CScriptVarPtr Fnc = c->getArgument("this");
5936	if(!Fnc->isFunction()) c->throwError(TypeError, "Function.prototype.bind called on incompatible Object");
5937	CScriptVarPtr This = c->getArgument(0);
5938	if(This->isUndefined() \|\| This->isNull()) This = root;
5939	vector<CScriptVarPtr> Args;
5940	for(int i=1; i<length; i++) Args.push_back(c->getArgument(i));
5941	c->setReturnVar(newScriptVarFunctionBounded(Fnc, This, Args));
5942	}
5943
5944
5945	//////////////////////////////////////////////////////////////////////////
5946	/// Error
5947	//////////////////////////////////////////////////////////////////////////
5948
5949	static CScriptVarPtr _newError(CTinyJS *context, ERROR_TYPES type, const CFunctionsScopePtr &c) {
5950	int i = c->getArgumentsLength();
5951	string message, fileName;
5952	int line=-1, column=-1;
5953	if(i>0) message = c->getArgument(0)->toString();
5954	if(i>1) fileName = c->getArgument(1)->toString();
5955	if(i>2) line = c->getArgument(2)->toNumber().toInt32();
5956	if(i>3) column = c->getArgument(3)->toNumber().toInt32();
5957	return ::newScriptVarError(context, type, message.c_str(), fileName.c_str(), line, column);
5958	}
5959	void CTinyJS::native_Error(const CFunctionsScopePtr &c, void *data) { c->setReturnVar(_newError(this, Error,c)); }
5960	void CTinyJS::native_EvalError(const CFunctionsScopePtr &c, void *data) { c->setReturnVar(_newError(this, EvalError,c)); }
5961	void CTinyJS::native_RangeError(const CFunctionsScopePtr &c, void *data) { c->setReturnVar(_newError(this, RangeError,c)); }
5962	void CTinyJS::native_ReferenceError(const CFunctionsScopePtr &c, void *data){ c->setReturnVar(_newError(this, ReferenceError,c)); }
5963	void CTinyJS::native_SyntaxError(const CFunctionsScopePtr &c, void *data){ c->setReturnVar(_newError(this, SyntaxError,c)); }
5964	void CTinyJS::native_TypeError(const CFunctionsScopePtr &c, void *data){ c->setReturnVar(_newError(this, TypeError,c)); }
5965
5966	//////////////////////////////////////////////////////////////////////////
5967	/// global functions
5968	//////////////////////////////////////////////////////////////////////////
5969
5970	void CTinyJS::native_eval(const CFunctionsScopePtr &c, void *data) {
5971	string Code = c->getArgument("jsCode")->toString();
5972	CScriptVarScopePtr scEvalScope = scopes.back(); // save scope
5973	scopes.pop_back(); // go back to the callers scope
5974	CScriptResult execute;
5975	CScriptTokenizer *oldTokenizer = t; t=0;
5976	try {
5977	CScriptTokenizer Tokenizer(Code.c_str(), "eval");
5978	t = &Tokenizer;
5979	do {
5980	execute_statement(execute);
5981	while (t->tk==';') t->match(';'); // skip empty statements
5982	} while (t->tk!=LEX_EOF);
5983	} catch (CScriptException *e) { // script exceptions
5984	t = oldTokenizer; // restore tokenizer
5985	scopes.push_back(scEvalScope); // restore Scopes;
5986	if(haveTry) { // an Error in eval is always catchable
5987	CScriptVarPtr E = newScriptVarError(this, e->errorType, e->message.c_str(), e->fileName.c_str(), e->lineNumber, e->column);
5988	delete e;
5989	throw E;
5990	} else
5991	throw e;
5992	} catch (...) { // all other exceptions
5993	t = oldTokenizer; // restore tokenizer
5994	scopes.push_back(scEvalScope); // restore Scopes;
5995	throw; // re-throw
5996	}
5997	t = oldTokenizer; // restore tokenizer
5998	scopes.push_back(scEvalScope); // restore Scopes;
5999	if(execute.value)
6000	c->setReturnVar(execute.value);
6001	}
6002
6003	void CTinyJS::native_isNAN(const CFunctionsScopePtr &c, void *data) {
6004	c->setReturnVar(constScriptVar(c->getArgument("objc")->toNumber().isNaN()));
6005	}
6006
6007	void CTinyJS::native_isFinite(const CFunctionsScopePtr &c, void *data) {
6008	c->setReturnVar(constScriptVar(c->getArgument("objc")->toNumber().isFinite()));
6009	}
6010
6011	void CTinyJS::native_parseInt(const CFunctionsScopePtr &c, void *) {
6012	CNumber result;
6013	result.parseInt(c->getArgument("string")->toString(), c->getArgument("radix")->toNumber().toInt32());
6014	c->setReturnVar(c->newScriptVar(result));
6015	}
6016
6017	void CTinyJS::native_parseFloat(const CFunctionsScopePtr &c, void *) {
6018	CNumber result;
6019	result.parseFloat(c->getArgument("string")->toString());
6020	c->setReturnVar(c->newScriptVar(result));
6021	}
6022
6023
6024
6025	void CTinyJS::native_JSON_parse(const CFunctionsScopePtr &c, void *data) {
6026	string Code = "§" + c->getArgument("text")->toString();
6027	// "§" is a spezal-token - it's for the tokenizer and means the code begins not in Statement-level
6028	CScriptVarLinkWorkPtr returnVar;
6029	CScriptTokenizer *oldTokenizer = t; t=0;
6030	try {
6031	CScriptTokenizer Tokenizer(Code.c_str(), "JSON.parse", 0, -1);
6032	t = &Tokenizer;
6033	CScriptResult execute;
6034	returnVar = execute_literals(execute);
6035	t->match(LEX_EOF);
6036	} catch (CScriptException *e) {
6037	t = oldTokenizer;
6038	throw e;
6039	}
6040	t = oldTokenizer;
6041
6042	if(returnVar)
6043	c->setReturnVar(returnVar);
6044	}
6045
6046	void CTinyJS::setTemporaryID_recursive(uint32_t ID) {
6047	for(vector<CScriptVarPtr*>::iterator it = pseudo_refered.begin(); it!=pseudo_refered.end(); ++it)
6048	if(it) (it)->setTemporaryID_recursive(ID);
6049	for(int i=Error; i<ERROR_COUNT; i++)
6050	if(errorPrototypes[i]) errorPrototypes[i]->setTemporaryID_recursive(ID);
6051	root->setTemporaryID_recursive(ID);
6052	}
6053
6054	void CTinyJS::ClearUnreferedVars(const CScriptVarPtr &extra/=CScriptVarPtr()/) {
6055	uint32_t UniqueID = getUniqueID();
6056	setTemporaryID_recursive(UniqueID);
6057	if(extra) extra->setTemporaryID_recursive(UniqueID);
6058	CScriptVar *p = first;
6059	while(p)
6060	{
6061	if(p->temporaryID != UniqueID)
6062	{
6063	CScriptVarPtr var = p;
6064	var->removeAllChildren();
6065	p = var->next;
6066	}
6067	else
6068	p = p->next;
6069	}
6070	}
6071

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