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1.117 paf 1: /** @file
1.118 paf 2: Parser: executor part of request class.
3:
1.324 misha 4: Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.218 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.243 paf 6: */
1.118 paf 7:
1.329 ! misha 8: static const char * const IDENT_EXECUTE_C="$Date: 2009-04-28 11:11:11 $";
1.1 paf 9:
1.152 paf 10: #include "pa_opcode.h"
1.8 paf 11: #include "pa_array.h"
1.11 paf 12: #include "pa_request.h"
1.15 paf 13: #include "pa_vstring.h"
1.22 paf 14: #include "pa_vhash.h"
1.167 parser 15: #include "pa_vvoid.h"
1.145 paf 16: #include "pa_vcode_frame.h"
1.321 misha 17: #include "pa_vmethod_frame.h"
1.38 paf 18: #include "pa_vobject.h"
1.49 paf 19: #include "pa_vdouble.h"
1.54 paf 20: #include "pa_vbool.h"
1.94 paf 21: #include "pa_vtable.h"
1.132 paf 22: #include "pa_vfile.h"
1.144 paf 23: #include "pa_vimage.h"
1.194 parser 24: #include "pa_wwrapper.h"
1.1 paf 25:
1.233 paf 26: //#define DEBUG_EXECUTE
1.157 parser 27:
28: #ifdef DEBUG_EXECUTE
1.1 paf 29: char *opcode_name[]={
1.49 paf 30: // literals
1.109 paf 31: "VALUE", "CURLY_CODE__STORE_PARAM", "EXPR_CODE__STORE_PARAM",
1.209 paf 32: "NESTED_CODE",
1.49 paf 33:
34: // actions
1.187 parser 35: "WITH_ROOT", "WITH_SELF", "WITH_READ", "WITH_WRITE",
1.328 misha 36: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
37: "VALUE__GET_CLASS",
38: #else
1.66 paf 39: "GET_CLASS",
1.328 misha 40: #endif
1.182 parser 41: "CONSTRUCT_VALUE", "CONSTRUCT_EXPR", "CURLY_CODE__CONSTRUCT",
1.108 paf 42: "WRITE_VALUE", "WRITE_EXPR_RESULT", "STRING__WRITE",
1.328 misha 43: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
44: "VALUE__GET_ELEMENT_OR_OPERATOR",
45: #else
46: "GET_ELEMENT_OR_OPERATOR",
47: #endif
48: "GET_ELEMENT",
49: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
50: "VALUE__GET_ELEMENT",
51: #endif
52: "GET_ELEMENT__WRITE",
53: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
54: "VALUE__GET_ELEMENT__WRITE",
55: #endif
1.232 paf 56: "OBJECT_POOL", "STRING_POOL",
57: "PREPARE_TO_CONSTRUCT_OBJECT", "PREPARE_TO_EXPRESSION",
58: "CALL", "CALL__WRITE",
1.49 paf 59:
60: // expression ops: unary
1.148 paf 61: "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS",
1.49 paf 62: // expression ops: binary
1.201 paf 63: "SUB", "ADD", "MUL", "DIV", "MOD", "INTDIV",
1.275 paf 64: "BIN_SL", "BIN_SR",
1.56 paf 65: "BIN_AND", "BIN_OR", "BIN_XOR",
66: "LOG_AND", "LOG_OR", "LOG_XOR",
1.49 paf 67: "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE",
1.103 paf 68: "STR_LT", "STR_GT", "STR_LE", "STR_GE", "STR_EQ", "STR_NE",
69: "IS"
1.1 paf 70: };
71:
1.297 paf 72: void va_debug_printf(SAPI_Info& sapi_info, const char* fmt,va_list args) {
1.127 paf 73: char buf[MAX_STRING];
74: vsnprintf(buf, MAX_STRING, fmt, args);
1.297 paf 75: SAPI::log(sapi_info, "%s", buf);
1.107 paf 76: }
77:
1.297 paf 78: void debug_printf(SAPI_Info& sapi_info, const char* fmt, ...) {
1.107 paf 79: va_list args;
1.297 paf 80: va_start(args, fmt);
81: va_debug_printf(sapi_info, fmt, args);
1.107 paf 82: va_end(args);
1.105 paf 83: }
84:
1.297 paf 85: void debug_dump(SAPI_Info& sapi_info, int level, ArrayOperation& ops) {
86: Array_iterator<Operation> i(ops);
1.190 parser 87: while(i.has_next()) {
1.323 misha 88: OP::OPCODE opcode=i.next().code;
1.1 paf 89:
1.328 misha 90: if(
91: opcode==OP::OP_VALUE
92: || opcode==OP::OP_STRING__WRITE
93: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
94: || opcode==OP::OP_VALUE__GET_CLASS
95: #endif
96: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
97: || opcode==OP::OP_VALUE__GET_ELEMENT
98: || opcode==OP::OP_VALUE__GET_ELEMENT__WRITE
99: || opcode==OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR
100: #endif
101: ) {
1.297 paf 102: Operation::Origin origin=i.next().origin;
103: Value& value=*i.next().value;
104: debug_printf(sapi_info,
1.133 paf 105: "%*s%s"
106: " \"%s\" %s",
1.297 paf 107: level*4, "", opcode_name[opcode],
108: value.get_string()->cstr(), value.type());
1.133 paf 109: continue;
1.15 paf 110: }
1.297 paf 111: debug_printf(sapi_info, "%*s%s", level*4, "", opcode_name[opcode]);
1.1 paf 112:
1.297 paf 113: switch(opcode) {
1.323 misha 114: case OP::OP_CURLY_CODE__STORE_PARAM:
115: case OP::OP_EXPR_CODE__STORE_PARAM:
116: case OP::OP_CURLY_CODE__CONSTRUCT:
117: case OP::OP_NESTED_CODE:
118: case OP::OP_OBJECT_POOL:
119: case OP::OP_STRING_POOL:
120: case OP::OP_CALL:
121: case OP::OP_CALL__WRITE:
1.297 paf 122: if(ArrayOperation* local_ops=i.next().ops)
123: debug_dump(sapi_info, level+1, *local_ops);
1.1 paf 124: }
125: }
126: }
1.157 parser 127: #endif
1.1 paf 128:
1.297 paf 129: // Request
130:
131: void Request::execute(ArrayOperation& ops) {
132: register Stack<StackItem>& stack=this->stack; // helps a lot on MSVC: 'esi'
1.159 parser 133:
1.304 paf 134: const String* debug_name=0; Operation::Origin debug_origin={0, 0, 0};
1.297 paf 135: try{
1.157 parser 136: #ifdef DEBUG_EXECUTE
1.297 paf 137: debug_printf(sapi_info, "source----------------------------\n");
138: debug_dump(sapi_info, 0, ops);
139: debug_printf(sapi_info, "execution-------------------------\n");
1.157 parser 140: #endif
1.297 paf 141: for(Array_iterator<Operation> i(ops); i.has_next(); ) {
1.322 misha 142: OP::OPCODE opcode=i.next().code;
1.293 paf 143:
1.157 parser 144: #ifdef DEBUG_EXECUTE
1.297 paf 145: debug_printf(sapi_info, "%d:%s", stack.top_index()+1, opcode_name[opcode]);
1.157 parser 146: #endif
1.11 paf 147:
1.297 paf 148: switch(opcode) {
1.51 paf 149: // param in next instruction
1.322 misha 150: case OP::OP_VALUE:
1.32 paf 151: {
1.297 paf 152: debug_origin=i.next().origin;
153: Value& value=*i.next().value;
1.157 parser 154: #ifdef DEBUG_EXECUTE
1.297 paf 155: debug_printf(sapi_info, " \"%s\" %s", value.get_string()->cstr(), value.type());
1.157 parser 156: #endif
1.297 paf 157: stack.push(value);
1.32 paf 158: break;
159: }
1.328 misha 160:
161: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
162: case OP::OP_VALUE__GET_CLASS:
163: {
164: // maybe they do ^class:method[] call, remember the fact
165: wcontext->set_somebody_entered_some_class();
166:
167: debug_origin=i.next().origin;
168: Value& value=*i.next().value;
169: const String& name=*value.get_string();
170:
171: #ifdef DEBUG_EXECUTE
172: debug_printf(sapi_info, " \"%s\" ", name.cstr());
173: #endif
174:
175: Value* class_value=classes().get(name);
176: if(!class_value)
177: throw Exception(PARSER_RUNTIME,
178: &name,
179: "class is undefined");
180:
181: stack.push(*class_value);
182: break;
183: }
184: #else
1.322 misha 185: case OP::OP_GET_CLASS:
1.38 paf 186: {
1.130 paf 187: // maybe they do ^class:method[] call, remember the fact
1.215 paf 188: wcontext->set_somebody_entered_some_class();
1.98 paf 189:
1.297 paf 190: const String& name=stack.pop().string();
191: Value* value=classes().get(name);
1.120 paf 192: if(!value)
1.316 misha 193: throw Exception(PARSER_RUNTIME,
1.66 paf 194: &name,
1.143 paf 195: "class is undefined");
1.66 paf 196:
1.297 paf 197: stack.push(*value);
1.38 paf 198: break;
199: }
1.328 misha 200: #endif
1.51 paf 201: // OP_WITH
1.322 misha 202: case OP::OP_WITH_ROOT:
1.187 parser 203: {
1.297 paf 204: stack.push(*method_frame);
1.187 parser 205: break;
206: }
1.322 misha 207: case OP::OP_WITH_SELF:
1.37 paf 208: {
1.297 paf 209: stack.push(get_self());
1.37 paf 210: break;
211: }
1.322 misha 212: case OP::OP_WITH_READ:
1.15 paf 213: {
1.297 paf 214: stack.push(*rcontext);
1.20 paf 215: break;
216: }
1.322 misha 217: case OP::OP_WITH_WRITE:
1.20 paf 218: {
1.287 paf 219: if(wcontext==method_frame)
1.316 misha 220: throw Exception(PARSER_RUNTIME,
1.287 paf 221: 0,
222: "$.name outside of $name[...]");
223:
1.297 paf 224: stack.push(*wcontext);
1.20 paf 225: break;
226: }
1.37 paf 227:
1.51 paf 228: // OTHER ACTIONS BUT WITHs
1.322 misha 229: case OP::OP_CONSTRUCT_VALUE:
1.20 paf 230: {
1.297 paf 231: Value& value=stack.pop().value();
232: const String& name=stack.pop().string(); debug_name=&name;
233: Value& ncontext=stack.pop().value();
1.329 ! misha 234: put_element(ncontext, name, &value);
1.308 paf 235:
1.213 paf 236: break;
237: }
1.322 misha 238: case OP::OP_CONSTRUCT_EXPR:
1.80 paf 239: {
1.219 paf 240: // see OP_PREPARE_TO_EXPRESSION
241: wcontext->set_in_expression(false);
242:
1.308 paf 243: Value& expr=stack.pop().value();
1.297 paf 244: const String& name=stack.pop().string(); debug_name=&name;
245: Value& ncontext=stack.pop().value();
1.308 paf 246: Value& value=expr.as_expr_result();
1.329 ! misha 247: put_element(ncontext, name, &value);
1.80 paf 248: break;
249: }
1.322 misha 250: case OP::OP_CURLY_CODE__CONSTRUCT:
1.182 parser 251: {
1.297 paf 252: ArrayOperation& local_ops=*i.next().ops;
1.182 parser 253: #ifdef DEBUG_EXECUTE
1.297 paf 254: debug_printf(sapi_info, " (%d)\n", local_ops.count());
255: debug_dump(sapi_info, 1, local_ops);
1.326 misha 256: #endif
257: VJunction& value=*new VJunction(
1.297 paf 258: get_self(), 0,
1.257 paf 259: method_frame,
1.240 paf 260: rcontext,
261: wcontext,
1.312 paf 262: &local_ops);
1.238 paf 263:
1.326 misha 264: wcontext->attach_junction(&value);
265:
1.297 paf 266: const String& name=stack.pop().string(); debug_name=&name;
267: Value& ncontext=stack.pop().value();
1.312 paf 268: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, &value, false))
269: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT)
1.316 misha 270: throw Exception(PARSER_RUNTIME,
1.308 paf 271: 0,
272: "property value can not be code, use [] or () brackets");
273:
1.182 parser 274: break;
275: }
1.322 misha 276: case OP::OP_NESTED_CODE:
1.209 paf 277: {
1.297 paf 278: ArrayOperation& local_ops=*i.next().ops;
1.209 paf 279: #ifdef DEBUG_EXECUTE
1.297 paf 280: debug_printf(sapi_info, " (%d)\n", local_ops.count());
281: debug_dump(sapi_info, 1, local_ops);
1.209 paf 282: #endif
1.297 paf 283: stack.push(local_ops);
1.209 paf 284: break;
285: }
1.322 misha 286: case OP::OP_WRITE_VALUE:
1.13 paf 287: {
1.297 paf 288: Value& value=stack.pop().value();
289: write_assign_lang(value);
1.86 paf 290: break;
291: }
1.322 misha 292: case OP::OP_WRITE_EXPR_RESULT:
1.108 paf 293: {
1.297 paf 294: Value& value=stack.pop().value();
295: write_no_lang(value.as_expr_result());
1.230 paf 296:
297: // must be after write(result) and
1.219 paf 298: // see OP_PREPARE_TO_EXPRESSION
299: wcontext->set_in_expression(false);
1.108 paf 300: break;
301: }
1.322 misha 302: case OP::OP_STRING__WRITE:
1.86 paf 303: {
1.297 paf 304: i.next(); // ignore origin
305: Value* value=i.next().value;
1.157 parser 306: #ifdef DEBUG_EXECUTE
1.297 paf 307: debug_printf(sapi_info, " \"%s\"", value->get_string()->cstr());
1.157 parser 308: #endif
1.297 paf 309: write_no_lang(*value->get_string());
1.13 paf 310: break;
1.14 paf 311: }
1.328 misha 312:
313: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
314: case OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR:
315: {
316: debug_origin=i.next().origin;
317: const String& name=*i.next().value->get_string(); debug_name=&name;
318:
319: #ifdef DEBUG_EXECUTE
320: debug_printf(sapi_info, " \"%s\" ", name.cstr());
321: #endif
322:
323: Value& value=get_element(*rcontext, name, true);
324: stack.push(value);
325: break;
326: }
327: #else
1.322 misha 328: case OP::OP_GET_ELEMENT_OR_OPERATOR:
1.215 paf 329: {
1.297 paf 330: const String& name=stack.pop().string(); debug_name=&name;
331: Value& ncontext=stack.pop().value();
332: Value& value=get_element(ncontext, name, true);
333: stack.push(value);
1.215 paf 334: break;
335: }
1.328 misha 336: #endif
337:
1.322 misha 338: case OP::OP_GET_ELEMENT:
1.11 paf 339: {
1.297 paf 340: const String& name=stack.pop().string(); debug_name=&name;
341: Value& ncontext=stack.pop().value();
342: Value& value=get_element(ncontext, name, false);
343: stack.push(value);
1.17 paf 344: break;
345: }
346:
1.328 misha 347: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
348: case OP::OP_VALUE__GET_ELEMENT:
349: {
350: debug_origin=i.next().origin;
351: const String& name=*i.next().value->get_string(); debug_name=&name;
352:
353: #ifdef DEBUG_EXECUTE
354: debug_printf(sapi_info, " \"%s\" ", name.cstr());
355: #endif
356:
357: Value& value=get_element(*rcontext, name, false);
358: stack.push(value);
359: break;
360: }
361: #endif
362:
363:
1.322 misha 364: case OP::OP_GET_ELEMENT__WRITE:
1.17 paf 365: {
1.297 paf 366: const String& name=stack.pop().string(); debug_name=&name;
367: Value& ncontext=stack.pop().value();
368: Value& value=get_element(ncontext, name, false);
369: write_assign_lang(value);
1.17 paf 370: break;
371: }
372:
1.328 misha 373: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
374: case OP::OP_VALUE__GET_ELEMENT__WRITE:
375: {
376: debug_origin=i.next().origin;
377: const String& name=*i.next().value->get_string(); debug_name=&name;
378:
379: #ifdef DEBUG_EXECUTE
380: debug_printf(sapi_info, " \"%s\" ", name.cstr());
381: #endif
382:
383: Value& value=get_element(*rcontext, name, false);
384: write_assign_lang(value);
385: break;
386: }
387: #endif
1.32 paf 388:
1.322 misha 389: case OP::OP_OBJECT_POOL:
1.17 paf 390: {
1.297 paf 391: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 392:
1.257 paf 393: WContext *saved_wcontext=wcontext;
1.297 paf 394: String::Language saved_lang=flang;
395: flang=String::L_PASS_APPENDED;
396: WWrapper local(0/*empty*/, wcontext);
1.226 paf 397: wcontext=&local;
398:
1.297 paf 399: execute(local_ops);
1.226 paf 400:
1.297 paf 401: stack.push(wcontext->result().as_value());
1.257 paf 402: flang=saved_lang;
403: wcontext=saved_wcontext;
1.13 paf 404: break;
1.15 paf 405: }
1.13 paf 406:
1.322 misha 407: case OP::OP_STRING_POOL:
1.49 paf 408: {
1.297 paf 409: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 410:
1.257 paf 411: WContext *saved_wcontext=wcontext;
1.297 paf 412: WWrapper local(0 /*empty*/, wcontext);
1.226 paf 413: wcontext=&local;
414:
1.297 paf 415: execute(local_ops);
1.226 paf 416:
1.297 paf 417: Value* value;
1.49 paf 418: // from "$a $b" part of expression taking only string value,
419: // ignoring any other content of wcontext
1.297 paf 420: if(const String* string=wcontext->get_string())
421: value=new VString(*string);
1.80 paf 422: else
1.324 misha 423: value=VVoid::get();
1.297 paf 424: stack.push(*value);
425:
1.257 paf 426: wcontext=saved_wcontext;
1.49 paf 427: break;
428: }
429:
1.51 paf 430: // CALL
1.322 misha 431: case OP::OP_CURLY_CODE__STORE_PARAM:
432: case OP::OP_EXPR_CODE__STORE_PARAM:
1.28 paf 433: {
1.237 paf 434: // code
1.297 paf 435: ArrayOperation& local_ops=*i.next().ops;
1.237 paf 436: #ifdef DEBUG_EXECUTE
1.297 paf 437: debug_printf(sapi_info, " (%d)\n", local_ops.count());
438: debug_dump(sapi_info, 1, local_ops);
1.237 paf 439: #endif
440: // when they evaluate expression parameter,
441: // the object expression result
442: // does not need to be written into calling frame
443: // it must go into any expressions using that parameter
444: // hence, we zero junction.wcontext here, and later
445: // in .process we would test that field
446: // in decision "which wwrapper to use"
1.326 misha 447: VJunction& value=*new VJunction(
1.297 paf 448: get_self(), 0,
1.257 paf 449: method_frame,
1.237 paf 450: rcontext,
1.322 misha 451: opcode==OP::OP_EXPR_CODE__STORE_PARAM?0:wcontext,
1.312 paf 452: &local_ops);
1.326 misha 453: #ifdef USE_DESTRUCTORS
454: value.set_temporal(true);
455: #else
456: if (opcode!=OP::OP_EXPR_CODE__STORE_PARAM)
457: #endif
458: wcontext->attach_junction(&value);
1.237 paf 459: // store param
460: // this op is executed from CALL local_ops only, so can not check method_frame_to_fill==0
1.329 ! misha 461: stack.push(value);
1.29 paf 462: break;
463: }
464:
1.322 misha 465: case OP::OP_PREPARE_TO_CONSTRUCT_OBJECT:
1.186 parser 466: {
1.200 paf 467: wcontext->set_constructing(true);
1.186 parser 468: break;
469: }
1.219 paf 470:
1.322 misha 471: case OP::OP_PREPARE_TO_EXPRESSION:
1.219 paf 472: {
473: wcontext->set_in_expression(true);
474: break;
475: }
476:
1.322 misha 477: case OP::OP_CALL:
478: case OP::OP_CALL__WRITE:
1.29 paf 479: {
1.297 paf 480: //is_debug_junction=true;
481: ArrayOperation* local_ops=i.next().ops;
1.157 parser 482: #ifdef DEBUG_EXECUTE
1.297 paf 483: debug_printf(sapi_info, " (%d)\n", local_ops?local_ops->count():0);
484: if(local_ops)
485: debug_dump(sapi_info, 1, *local_ops);
1.237 paf 486:
1.297 paf 487: debug_printf(sapi_info, "->\n");
1.157 parser 488: #endif
1.297 paf 489: Value& value=stack.pop().value();
1.237 paf 490:
1.297 paf 491: Junction* junction=value.get_junction();
492: if(!junction) {
493: if(value.is("void"))
1.316 misha 494: throw Exception(PARSER_RUNTIME,
1.297 paf 495: 0,
496: "undefined method");
497: else
1.316 misha 498: throw Exception(PARSER_RUNTIME,
1.297 paf 499: 0,
500: "is '%s', not a method or junction, can not call it",
501: value.type());
502: }
1.282 paf 503: /* no check needed, code compiled the way that that's impossible
1.276 paf 504: // check:
505: // that this is method-junction, not a code-junction
1.278 paf 506: // [disabling these contstructions:]
507: // $junction{code}
508: // ^junction[]
1.276 paf 509: if(!junction->method)
1.316 misha 510: throw Exception(PARSER_RUNTIME,
1.297 paf 511: "is '%s', it is code junction, can not call it",
512: value.type());
1.282 paf 513: */
1.237 paf 514:
1.321 misha 515: VMethodFrame frame(*junction, method_frame);
516: if(local_ops){ // store param code goes here
1.329 ! misha 517: size_t first = stack.top_index();
1.321 misha 518: execute(*local_ops);
1.329 ! misha 519: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
! 520: stack.set_top_index(first);
1.321 misha 521: }
522: WContext* result_wcontext=op_call(frame);
1.322 misha 523: if(opcode==OP::OP_CALL__WRITE) {
1.321 misha 524: write_assign_lang(result_wcontext->result());
525: } else { // OP_CALL
526: stack.push(result_wcontext->result().as_value());
1.237 paf 527: }
1.220 paf 528:
1.157 parser 529: #ifdef DEBUG_EXECUTE
1.297 paf 530: debug_printf(sapi_info, "<-returned");
1.157 parser 531: #endif
1.297 paf 532: //is_debug_junction=false;
1.327 misha 533:
534: if(get_skip())
535: return;
536: if(get_interrupted()) {
537: set_interrupted(false);
538: throw Exception("parser.interrupted",
539: 0,
540: "execution stopped");
541: }
1.49 paf 542: break;
543: }
544:
1.55 paf 545: // expression ops: unary
1.322 misha 546: case OP::OP_NEG:
1.55 paf 547: {
1.297 paf 548: Value& a=stack.pop().value();
549: Value& value=*new VDouble(-a.as_double());
550: stack.push(value);
1.55 paf 551: break;
552: }
1.322 misha 553: case OP::OP_INV:
1.55 paf 554: {
1.297 paf 555: Value& a=stack.pop().value();
556: Value& value=*new VDouble(~a.as_int());
557: stack.push(value);
1.55 paf 558: break;
559: }
1.322 misha 560: case OP::OP_NOT:
1.55 paf 561: {
1.297 paf 562: Value& a=stack.pop().value();
1.327 misha 563: Value& value=VBool::get(!a.as_bool());
1.297 paf 564: stack.push(value);
1.55 paf 565: break;
566: }
1.322 misha 567: case OP::OP_DEF:
1.62 paf 568: {
1.297 paf 569: Value& a=stack.pop().value();
1.327 misha 570: Value& value=VBool::get(a.is_defined());
1.297 paf 571: stack.push(value);
1.62 paf 572: break;
573: }
1.322 misha 574: case OP::OP_IN:
1.62 paf 575: {
1.297 paf 576: Value& a=stack.pop().value();
577: const String& path=a.as_string();
1.327 misha 578: Value& value=VBool::get(request_info.uri && *request_info.uri && path.this_starts(request_info.uri));
1.297 paf 579: stack.push(value);
1.62 paf 580: break;
581: }
1.322 misha 582: case OP::OP_FEXISTS:
1.62 paf 583: {
1.297 paf 584: Value& a=stack.pop().value();
1.327 misha 585: Value& value=VBool::get(file_exist(absolute(a.as_string())));
1.297 paf 586: stack.push(value);
1.148 paf 587: break;
588: }
1.322 misha 589: case OP::OP_DEXISTS:
1.148 paf 590: {
1.297 paf 591: Value& a=stack.pop().value();
1.327 misha 592: Value& value=VBool::get(dir_exists(absolute(a.as_string())));
1.297 paf 593: stack.push(value);
1.62 paf 594: break;
595: }
1.55 paf 596:
597: // expression ops: binary
1.322 misha 598: case OP::OP_SUB:
1.53 paf 599: {
1.297 paf 600: Value& b=stack.pop().value(); Value& a=stack.pop().value();
601: Value& value=*new VDouble(a.as_double() - b.as_double());
602: stack.push(value);
1.53 paf 603: break;
604: }
1.322 misha 605: case OP::OP_ADD:
1.53 paf 606: {
1.297 paf 607: Value& b=stack.pop().value(); Value& a=stack.pop().value();
608: Value& value=*new VDouble(a.as_double() + b.as_double());
609: stack.push(value);
1.53 paf 610: break;
611: }
1.322 misha 612: case OP::OP_MUL:
1.49 paf 613: {
1.297 paf 614: Value& b=stack.pop().value(); Value& a=stack.pop().value();
615: Value& value=*new VDouble(a.as_double() * b.as_double());
616: stack.push(value);
1.53 paf 617: break;
618: }
1.322 misha 619: case OP::OP_DIV:
1.53 paf 620: {
1.297 paf 621: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 622:
1.297 paf 623: double a_double=a.as_double();
624: double b_double=b.as_double();
1.170 parser 625:
1.171 parser 626: if(b_double == 0) {
1.297 paf 627: //const String* problem_source=b.as_string();
1.223 paf 628: throw Exception("number.zerodivision",
1.297 paf 629: 0, //problem_source,
1.170 parser 630: "Division by zero");
1.171 parser 631: }
1.170 parser 632:
1.297 paf 633: Value& value=*new VDouble(a_double / b_double);
634: stack.push(value);
1.54 paf 635: break;
636: }
1.322 misha 637: case OP::OP_MOD:
1.55 paf 638: {
1.297 paf 639: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 640:
1.297 paf 641: double a_double=a.as_double();
642: double b_double=b.as_double();
1.170 parser 643:
1.173 parser 644: if(b_double == 0) {
1.297 paf 645: //const String* problem_source=b.as_string();
1.223 paf 646: throw Exception("number.zerodivision",
1.297 paf 647: 0, //problem_source,
1.170 parser 648: "Modulus by zero");
1.171 parser 649: }
1.170 parser 650:
1.297 paf 651: Value& value=*new VDouble(fmod(a_double, b_double));
652: stack.push(value);
1.201 paf 653: break;
654: }
1.322 misha 655: case OP::OP_INTDIV:
1.201 paf 656: {
1.297 paf 657: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.201 paf 658:
1.297 paf 659: int a_int=a.as_int();
660: int b_int=b.as_int();
1.201 paf 661:
662: if(b_int == 0) {
1.297 paf 663: //const String* problem_source=b.as_string();
1.223 paf 664: throw Exception("number.zerodivision",
1.297 paf 665: 0, //problem_source,
1.201 paf 666: "Division by zero");
667: }
668:
1.297 paf 669: Value& value=*new VInt(a_int / b_int);
670: stack.push(value);
1.55 paf 671: break;
672: }
1.322 misha 673: case OP::OP_BIN_SL:
1.274 paf 674: {
1.297 paf 675: Value& b=stack.pop().value(); Value& a=stack.pop().value();
676: Value& value=*new VInt(
677: a.as_int() <<
678: b.as_int());
679: stack.push(value);
1.274 paf 680: break;
681: }
1.322 misha 682: case OP::OP_BIN_SR:
1.274 paf 683: {
1.297 paf 684: Value& b=stack.pop().value(); Value& a=stack.pop().value();
685: Value& value=*new VInt(
686: a.as_int() >>
687: b.as_int());
688: stack.push(value);
1.274 paf 689: break;
690: }
1.322 misha 691: case OP::OP_BIN_AND:
1.54 paf 692: {
1.297 paf 693: Value& b=stack.pop().value(); Value& a=stack.pop().value();
694: Value& value=*new VInt(
695: a.as_int() &
696: b.as_int());
697: stack.push(value);
1.54 paf 698: break;
699: }
1.322 misha 700: case OP::OP_BIN_OR:
1.54 paf 701: {
1.297 paf 702: Value& b=stack.pop().value(); Value& a=stack.pop().value();
703: Value& value=*new VInt(
704: a.as_int() |
705: b.as_int());
706: stack.push(value);
1.55 paf 707: break;
708: }
1.322 misha 709: case OP::OP_BIN_XOR:
1.56 paf 710: {
1.297 paf 711: Value& b=stack.pop().value(); Value& a=stack.pop().value();
712: Value& value=*new VInt(
713: a.as_int() ^
714: b.as_int());
715: stack.push(value);
1.56 paf 716: break;
717: }
1.322 misha 718: case OP::OP_LOG_AND:
1.55 paf 719: {
1.297 paf 720: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 721: bool result;
1.297 paf 722: if(a.as_bool()) {
723: execute(local_ops);
724: Value& b=stack.pop().value();
725: result=b.as_bool();
1.209 paf 726: } else
1.263 paf 727: result=false;
1.327 misha 728: Value& value=VBool::get(result);
1.297 paf 729: stack.push(value);
1.55 paf 730: break;
731: }
1.322 misha 732: case OP::OP_LOG_OR:
1.55 paf 733: {
1.297 paf 734: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 735: bool result;
1.297 paf 736: if(a.as_bool())
1.263 paf 737: result=true;
1.209 paf 738: else {
1.297 paf 739: execute(local_ops);
740: Value& b=stack.pop().value();
741: result=b.as_bool();
1.209 paf 742: }
1.327 misha 743: Value& value=VBool::get(result);
1.297 paf 744: stack.push(value);
1.56 paf 745: break;
746: }
1.322 misha 747: case OP::OP_LOG_XOR:
1.56 paf 748: {
1.297 paf 749: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 750: Value& value=VBool::get(a.as_bool() ^ b.as_bool());
1.297 paf 751: stack.push(value);
1.55 paf 752: break;
753: }
1.322 misha 754: case OP::OP_NUM_LT:
1.55 paf 755: {
1.297 paf 756: volatile double b_double=stack.pop().value().as_double();
757: volatile double a_double=stack.pop().value().as_double();
1.327 misha 758: Value& value=VBool::get(a_double<b_double);
1.297 paf 759: stack.push(value);
1.55 paf 760: break;
761: }
1.322 misha 762: case OP::OP_NUM_GT:
1.55 paf 763: {
1.297 paf 764: volatile double b_double=stack.pop().value().as_double();
765: volatile double a_double=stack.pop().value().as_double();
1.327 misha 766: Value& value=VBool::get(a_double>b_double);
1.297 paf 767: stack.push(value);
1.55 paf 768: break;
769: }
1.322 misha 770: case OP::OP_NUM_LE:
1.55 paf 771: {
1.297 paf 772: volatile double b_double=stack.pop().value().as_double();
773: volatile double a_double=stack.pop().value().as_double();
1.327 misha 774: Value& value=VBool::get(a_double<=b_double);
1.297 paf 775: stack.push(value);
1.55 paf 776: break;
777: }
1.322 misha 778: case OP::OP_NUM_GE:
1.55 paf 779: {
1.297 paf 780: volatile double b_double=stack.pop().value().as_double();
781: volatile double a_double=stack.pop().value().as_double();
1.327 misha 782: Value& value=VBool::get(a_double>=b_double);
1.297 paf 783: stack.push(value);
1.55 paf 784: break;
785: }
1.322 misha 786: case OP::OP_NUM_EQ:
1.55 paf 787: {
1.297 paf 788: volatile double b_double=stack.pop().value().as_double();
789: volatile double a_double=stack.pop().value().as_double();
1.327 misha 790: Value& value=VBool::get(a_double==b_double);
1.297 paf 791: stack.push(value);
1.55 paf 792: break;
793: }
1.322 misha 794: case OP::OP_NUM_NE:
1.55 paf 795: {
1.297 paf 796: volatile double b_double=stack.pop().value().as_double();
797: volatile double a_double=stack.pop().value().as_double();
1.327 misha 798: Value& value=VBool::get(a_double!=b_double);
1.297 paf 799: stack.push(value);
1.54 paf 800: break;
801: }
1.322 misha 802: case OP::OP_STR_LT:
1.58 paf 803: {
1.297 paf 804: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 805: Value& value=VBool::get(a.as_string() < b.as_string());
1.297 paf 806: stack.push(value);
1.58 paf 807: break;
808: }
1.322 misha 809: case OP::OP_STR_GT:
1.58 paf 810: {
1.297 paf 811: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 812: Value& value=VBool::get(a.as_string() > b.as_string());
1.297 paf 813: stack.push(value);
1.58 paf 814: break;
815: }
1.322 misha 816: case OP::OP_STR_LE:
1.58 paf 817: {
1.297 paf 818: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 819: Value& value=VBool::get(a.as_string() <= b.as_string());
1.297 paf 820: stack.push(value);
1.58 paf 821: break;
822: }
1.322 misha 823: case OP::OP_STR_GE:
1.54 paf 824: {
1.297 paf 825: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 826: Value& value=VBool::get(a.as_string() >= b.as_string());
1.297 paf 827: stack.push(value);
1.58 paf 828: break;
829: }
1.322 misha 830: case OP::OP_STR_EQ:
1.58 paf 831: {
1.297 paf 832: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 833: Value& value=VBool::get(a.as_string() == b.as_string());
1.297 paf 834: stack.push(value);
1.58 paf 835: break;
836: }
1.322 misha 837: case OP::OP_STR_NE:
1.58 paf 838: {
1.297 paf 839: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 840: Value& value=VBool::get(a.as_string() != b.as_string());
1.297 paf 841: stack.push(value);
1.103 paf 842: break;
843: }
1.322 misha 844: case OP::OP_IS:
1.103 paf 845: {
1.297 paf 846: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 847: Value& value=VBool::get(a.is(b.as_string().cstr()));
1.297 paf 848: stack.push(value);
1.28 paf 849: break;
850: }
851:
1.11 paf 852: default:
1.223 paf 853: throw Exception(0,
1.67 paf 854: 0,
1.297 paf 855: "invalid opcode %d", opcode);
1.11 paf 856: }
857: }
1.306 paf 858: } catch(const Exception&) {
1.297 paf 859: // record it to stack trace
1.301 paf 860: if(debug_name)
861: exception_trace.push(Trace(debug_name, debug_origin));
1.297 paf 862: rethrow;
863: }
1.1 paf 864: }
1.17 paf 865:
1.319 misha 866: WContext* Request::op_call(VMethodFrame& frame){
867: VMethodFrame *saved_method_frame=method_frame;
868: Value* saved_rcontext=rcontext;
869: WContext *saved_wcontext=wcontext;
870:
871: VStateless_class& called_class=*frame.junction.self.get_class();
872: Value* new_self;
873: if(wcontext->get_constructing()) {
874: wcontext->set_constructing(false);
875: new_self=&get_self();
876: if(frame.junction.method->call_type!=Method::CT_STATIC) {
877: // this is a constructor call
878: HashStringValue& new_object_fields=*new HashStringValue();
879: if(Value* value=called_class.create_new_value(fpool, new_object_fields)) {
880: // some stateless_class creatable derivates
881: new_self=value;
882: } else
883: throw Exception(PARSER_RUNTIME,
884: 0, //&frame.name(),
885: "is not a constructor, system class '%s' can be constructed only implicitly",
886: called_class.name().cstr());
887:
888: frame.write(*new_self,
889: String::L_CLEAN // not used, always an object, not string
890: );
891: } else
892: throw Exception(PARSER_RUNTIME,
893: 0, //&frame.name(),
894: "method is static and can not be used as constructor");
895: } else
896: new_self=&frame.junction.self;
897:
898: frame.set_self(*new_self);
899:
900: // see OP_PREPARE_TO_EXPRESSION
901: frame.set_in_expression(wcontext->get_in_expression());
902:
903: rcontext=wcontext=&frame;
904: {
905: const Method& method=*frame.junction.method;
906: Method::Call_type call_type=&called_class==new_self ? Method::CT_STATIC : Method::CT_DYNAMIC;
907: if(
908: method.call_type==Method::CT_ANY ||
909: method.call_type==call_type) { // allowed call type?
910: method_frame=&frame;
911: if(method.native_code) { // native code?
912: method.check_actual_numbered_params(
913: frame.junction.self,
914: /*frame.name(), */frame.numbered_params());
915: method.native_code(
916: *this,
917: *frame.numbered_params()); // execute it
918: } else // parser code, execute it
919: recoursion_checked_execute(*method.parser_code);
920: } else
921: throw Exception(PARSER_RUNTIME,
922: 0, //&frame.name(),
923: "is not allowed to be called %s",
924: call_type==Method::CT_STATIC?"statically":"dynamically");
925: }
926:
927: WContext *result_wcontext=wcontext;
928: // StringOrValue result=wcontext->result();
929:
930: wcontext=saved_wcontext;
931: rcontext=saved_rcontext;
932: method_frame=saved_method_frame;
933:
934: return result_wcontext;
935: }
936:
937:
1.292 paf 938: /**
939: @todo cache|prepare junctions
940: @bug ^superbase:method would dynamically call ^base:method if there is any
941: */
1.297 paf 942: Value& Request::get_element(Value& ncontext, const String& name, bool can_call_operator) {
943: Value* value=0;
1.249 paf 944: if(can_call_operator) {
1.325 misha 945: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
946: if(!method->junction_template)
947: method->junction_template=new VJunction(main_class, method);
948: return *method->junction_template;
949: }
1.249 paf 950: }
951: if(!value) {
952: if(!wcontext->get_constructing() // not constructing
953: && wcontext->get_somebody_entered_some_class() ) // ^class:method
1.297 paf 954: if(VStateless_class *called_class=ncontext.get_class())
1.249 paf 955: if(VStateless_class *read_class=rcontext->get_class())
956: if(read_class->derived_from(*called_class)) // current derived from called
1.297 paf 957: if(Value* base=get_self().base()) { // doing DYNAMIC call
1.290 paf 958: Temp_derived temp_derived(*base, 0); // temporarily prevent go-back-down virtual calls
1.320 misha 959: value=base->get_element(name, *base, true); // virtual-up lookup starting from parent
1.289 paf 960: goto value_ready;
1.249 paf 961: }
962: }
1.216 paf 963: if(!value)
1.320 misha 964: value=ncontext.get_element(name, ncontext, true);
1.291 paf 965:
966: if(value && wcontext->get_constructing())
1.297 paf 967: if(Junction* junction=value->get_junction()) {
968: if(junction->self.get_class()!=&ncontext)
1.316 misha 969: throw Exception(PARSER_RUNTIME,
1.291 paf 970: &name,
1.297 paf 971: "constructor must be declared in class '%s'",
972: ncontext.get_class()->name_cstr());
1.291 paf 973: }
1.249 paf 974:
1.289 paf 975: value_ready:
1.284 paf 976: if(value)
1.294 paf 977: value=&process_to_value(*value); // process possible code-junction
1.284 paf 978: else
1.324 misha 979: value=VVoid::get();
1.63 paf 980:
1.297 paf 981: return *value;
1.309 paf 982: }
983:
1.329 ! misha 984: void Request::put_element(Value& ncontext, const String& name, Value* value) {
1.309 paf 985: // put_element can return property-setting-junction
1.329 ! misha 986: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, value, false))
1.312 paf 987: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT) {
1.309 paf 988: // process it
1.329 ! misha 989: VMethodFrame frame(vjunction->junction(), method_frame/*caller*/);
! 990: int param_count=frame.method_params_count();
! 991:
1.309 paf 992: if(param_count!=1)
1.316 misha 993: throw Exception(PARSER_RUNTIME,
1.309 paf 994: 0,
995: "setter method must have ONE parameter (has %d parameters)", param_count);
996:
1.329 ! misha 997: frame.store_params(&value, 1);
1.309 paf 998: frame.set_self(frame.junction.self);
999:
1000: VMethodFrame *saved_method_frame=method_frame;
1001: Value* saved_rcontext=rcontext;
1002: WContext *saved_wcontext=wcontext;
1003:
1004: rcontext=wcontext=&frame;
1005: method_frame=&frame;
1006:
1.311 paf 1007: // prevent non-string writes for better error reporting [setters are not expected to return anything]
1.309 paf 1008: wcontext->write(*method_frame);
1009:
1010: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1011: // we don't need it StringOrValue result=wcontext->result();
1012:
1013: method_frame=saved_method_frame;
1014: wcontext=saved_wcontext;
1015: rcontext=saved_rcontext;
1016: }
1.34 paf 1017: }
1.70 paf 1018:
1.162 parser 1019: /** @param intercept_string
1.116 paf 1020: - true:
1021: they want result=string value,
1022: possible object result goes to wcontext
1023: - false:
1024: they want any result[string|object]
1025: nothing goes to wcontext.
1.125 paf 1026: used in @c (expression) params evaluation
1.224 paf 1027:
1028: using the fact it's either string_ or value_ result requested to speed up checkes
1.116 paf 1029: */
1.229 paf 1030: StringOrValue Request::process(Value& input_value, bool intercept_string) {
1.297 paf 1031: Junction* junction=input_value.get_junction();
1.307 paf 1032: if(junction) {
1033: if(junction->is_getter) { // is it a getter-junction?
1.329 ! misha 1034: VMethodFrame frame(*junction, method_frame/*caller*/);
! 1035: int param_count=frame.method_params_count();
! 1036:
1.320 misha 1037: if(junction->auto_name){ // default getter
1038: if(param_count>1)
1039: throw Exception(PARSER_RUNTIME,
1040: 0,
1041: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1042: } else if(param_count)
1.316 misha 1043: throw Exception(PARSER_RUNTIME,
1.307 paf 1044: 0,
1.320 misha 1045: "getter method must have no parameters (has %d parameters)", param_count);
1.307 paf 1046:
1.329 ! misha 1047: if(junction->auto_name && param_count){
! 1048: Value *param=new VString(*junction->auto_name);
! 1049: frame.store_params(¶m, 1);
! 1050: }
1.320 misha 1051:
1.307 paf 1052: frame.set_self(frame.junction.self);
1053:
1054: VMethodFrame *saved_method_frame=method_frame;
1055: Value* saved_rcontext=rcontext;
1056: WContext *saved_wcontext=wcontext;
1057:
1058: rcontext=wcontext=&frame;
1059: method_frame=&frame;
1060:
1061: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1062: StringOrValue result=wcontext->result();
1063:
1064: method_frame=saved_method_frame;
1065: wcontext=saved_wcontext;
1066: rcontext=saved_rcontext;
1067:
1068: return result;
1069: }
1070:
1071: if(junction->code) { // is it a code-junction?
1072: // process it
1073: StringOrValue result;
1.157 parser 1074: #ifdef DEBUG_EXECUTE
1.307 paf 1075: debug_printf(sapi_info, "ja->\n");
1.157 parser 1076: #endif
1.238 paf 1077:
1.307 paf 1078: if(!junction->method_frame)
1.316 misha 1079: throw Exception(PARSER_RUNTIME,
1.240 paf 1080: 0,
1081: "junction used outside of context");
1082:
1.307 paf 1083: VMethodFrame *saved_method_frame=method_frame;
1084: Value* saved_rcontext=rcontext;
1085: WContext *saved_wcontext=wcontext;
1086:
1087: method_frame=junction->method_frame;
1088: rcontext=junction->rcontext;
1089:
1090: // for expression method params
1091: // wcontext is set 0
1092: // using the fact in decision "which wwrapper to use"
1093: bool using_code_frame=intercept_string && junction->wcontext;
1094: if(using_code_frame) {
1.318 misha 1095: // almost plain wwrapper about junction wcontext
1096:
1097: VCodeFrame local(*junction->wcontext);
1.307 paf 1098: wcontext=&local;
1099:
1100: // execute it
1101: recoursion_checked_execute(*junction->code);
1102:
1103: // CodeFrame soul:
1.318 misha 1104: result=wcontext->result();
1.307 paf 1105: } else {
1106: // plain wwrapper
1107: WWrapper local(0/*empty*/, wcontext);
1108: wcontext=&local;
1109:
1110: // execute it
1111: recoursion_checked_execute(*junction->code);
1112:
1113: result=wcontext->result();
1114: }
1115:
1116: wcontext=saved_wcontext;
1117: rcontext=saved_rcontext;
1118: method_frame=saved_method_frame;
1.207 paf 1119:
1.157 parser 1120: #ifdef DEBUG_EXECUTE
1.307 paf 1121: debug_printf(sapi_info, "<-ja returned");
1.157 parser 1122: #endif
1.307 paf 1123: return result;
1124: }
1125:
1126: // it is then method-junction, do not explode it
1127: // just return it as we do for usual objects
1128: }
1129:
1130: return input_value;
1.85 paf 1131: }
1132:
1.298 paf 1133: StringOrValue Request::execute_method(VMethodFrame& amethod_frame, const Method& method) {
1.257 paf 1134: VMethodFrame *saved_method_frame=method_frame;
1.297 paf 1135: Value* saved_rcontext=rcontext;
1.257 paf 1136: WContext *saved_wcontext=wcontext;
1.99 paf 1137:
1138: // initialize contexts
1.286 paf 1139: rcontext=wcontext=method_frame=&amethod_frame;
1.99 paf 1140:
1141: // execute!
1142: execute(*method.parser_code);
1143:
1144: // result
1.298 paf 1145: StringOrValue result=wcontext->result();
1.208 paf 1146:
1.257 paf 1147: wcontext=saved_wcontext;
1148: rcontext=saved_rcontext;
1149: method_frame=saved_method_frame;
1.242 paf 1150:
1151: // return
1152: return result;
1.208 paf 1153: }
1154:
1.297 paf 1155: const String* Request::execute_method(Value& aself,
1.329 ! misha 1156: const Method& method, Value* optional_param,
! 1157: bool do_return_string) {
1.317 misha 1158:
1.257 paf 1159: VMethodFrame *saved_method_frame=method_frame;
1.297 paf 1160: Value* saved_rcontext=rcontext;
1.257 paf 1161: WContext *saved_wcontext=wcontext;
1.208 paf 1162:
1.307 paf 1163: Junction local_junction(aself, &method);
1.321 misha 1164: VMethodFrame local_frame(local_junction, method_frame/*caller*/);
1.329 ! misha 1165: if(optional_param && local_frame.method_params_count()>0) {
! 1166: local_frame.store_params(&optional_param, 1);
1.242 paf 1167: }
1.285 paf 1168: local_frame.set_self(aself);
1.257 paf 1169: rcontext=wcontext=method_frame=&local_frame;
1.246 paf 1170:
1171: // prevent non-string writes for better error reporting
1.297 paf 1172: if(do_return_string)
1.246 paf 1173: wcontext->write(local_frame);
1.208 paf 1174:
1175: // execute!
1176: execute(*method.parser_code);
1177:
1178: // result
1.297 paf 1179: const String* result=0;
1180: if(do_return_string)
1181: result=&wcontext->result().as_string();
1.99 paf 1182:
1.257 paf 1183: wcontext=saved_wcontext;
1184: rcontext=saved_rcontext;
1185: method_frame=saved_method_frame;
1.297 paf 1186:
1187: return result;
1.242 paf 1188: }
1189:
1.297 paf 1190: Request::Execute_nonvirtual_method_result
1191: Request::execute_nonvirtual_method(VStateless_class& aclass,
1.317 misha 1192: const String& method_name,
1193: VString* optional_param,
1.297 paf 1194: bool do_return_string) {
1195: Execute_nonvirtual_method_result result;
1196: result.method=aclass.get_method(method_name);
1197: if(result.method)
1.317 misha 1198: result.string=execute_method(aclass, *result.method, optional_param, do_return_string);
1.297 paf 1199: return result;
1.99 paf 1200: }
1201:
1.297 paf 1202: const String* Request::execute_virtual_method(Value& aself,
1203: const String& method_name) {
1204: if(Value* value=aself.get_element(method_name, aself, false))
1205: if(Junction* junction=value->get_junction())
1206: if(const Method *method=junction->method)
1207: return execute_method(aself, *method, 0/*no params*/, true);
1.188 parser 1208:
1.176 parser 1209: return 0;
1210: }