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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:
1.337 ! misha 8: static const char * const IDENT_EXECUTE_C="$Date: 2009-05-20 09:09:20 $";
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",
1.335 misha 49: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
50: "GET_OBJECT_ELEMENT",
51: "GET_OBJECT_ELEMENT__WRITE",
52: #endif
53: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
54: "GET_OBJECT_VAR_ELEMENT",
55: "GET_OBJECT_VAR_ELEMENT__WRITE",
1.334 misha 56: #endif
1.328 misha 57: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
58: "VALUE__GET_ELEMENT",
59: #endif
60: "GET_ELEMENT__WRITE",
61: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
62: "VALUE__GET_ELEMENT__WRITE",
63: #endif
1.232 paf 64: "OBJECT_POOL", "STRING_POOL",
65: "PREPARE_TO_CONSTRUCT_OBJECT", "PREPARE_TO_EXPRESSION",
66: "CALL", "CALL__WRITE",
1.49 paf 67:
1.337 ! misha 68: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
! 69: "ROOT_CONSTRUCT_EXPR", "ROOT_CONSTRUCT_VALUE",
! 70: "WRITE_CONSTRUCT_EXPR", "WRITE_CONSTRUCT_VALUE",
! 71: #endif
! 72:
1.49 paf 73: // expression ops: unary
1.148 paf 74: "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS",
1.49 paf 75: // expression ops: binary
1.201 paf 76: "SUB", "ADD", "MUL", "DIV", "MOD", "INTDIV",
1.275 paf 77: "BIN_SL", "BIN_SR",
1.56 paf 78: "BIN_AND", "BIN_OR", "BIN_XOR",
79: "LOG_AND", "LOG_OR", "LOG_XOR",
1.49 paf 80: "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE",
1.103 paf 81: "STR_LT", "STR_GT", "STR_LE", "STR_GE", "STR_EQ", "STR_NE",
82: "IS"
1.1 paf 83: };
84:
1.297 paf 85: void va_debug_printf(SAPI_Info& sapi_info, const char* fmt,va_list args) {
1.127 paf 86: char buf[MAX_STRING];
87: vsnprintf(buf, MAX_STRING, fmt, args);
1.297 paf 88: SAPI::log(sapi_info, "%s", buf);
1.107 paf 89: }
90:
1.297 paf 91: void debug_printf(SAPI_Info& sapi_info, const char* fmt, ...) {
1.334 misha 92: va_list args;
93: va_start(args, fmt);
94: va_debug_printf(sapi_info, fmt, args);
95: va_end(args);
1.105 paf 96: }
97:
1.297 paf 98: void debug_dump(SAPI_Info& sapi_info, int level, ArrayOperation& ops) {
99: Array_iterator<Operation> i(ops);
1.190 parser 100: while(i.has_next()) {
1.323 misha 101: OP::OPCODE opcode=i.next().code;
1.1 paf 102:
1.337 ! misha 103: #if defined(OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT) || defined(OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT)
1.334 misha 104: if(
1.335 misha 105: 1==0
106: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
107: || opcode==OP::OP_GET_OBJECT_ELEMENT
108: || opcode==OP::OP_GET_OBJECT_ELEMENT__WRITE
109: #endif
110: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
111: || opcode==OP::OP_GET_OBJECT_VAR_ELEMENT
112: || opcode==OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE
113: #endif
1.337 ! misha 114: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
! 115: || opcode==OP::OP_ROOT_CONSTRUCT_EXPR
! 116: || opcode==OP::OP_ROOT_CONSTRUCT_VALUE
! 117: || opcode==OP::OP_WRITE_CONSTRUCT_EXPR
! 118: || opcode==OP::OP_WRITE_CONSTRUCT_VALUE
! 119: #endif
1.334 misha 120: ){
121: i.next(); // skip origin
122: Value& value1=*i.next().value;
123: i.next(); // skip origin
124: Value& value2=*i.next().value;
125: debug_printf(sapi_info,
126: "%*s%s"
127: " \"%s\" \"%s\"",
128: level*4, "", opcode_name[opcode],
129: value1.get_string()->cstr(), value2.get_string()->cstr());
130: continue;
131: }
132: #endif
1.328 misha 133: if(
134: opcode==OP::OP_VALUE
135: || opcode==OP::OP_STRING__WRITE
136: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
137: || opcode==OP::OP_VALUE__GET_CLASS
138: #endif
139: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
140: || opcode==OP::OP_VALUE__GET_ELEMENT
141: || opcode==OP::OP_VALUE__GET_ELEMENT__WRITE
142: || opcode==OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR
143: #endif
144: ) {
1.297 paf 145: Operation::Origin origin=i.next().origin;
146: Value& value=*i.next().value;
147: debug_printf(sapi_info,
1.133 paf 148: "%*s%s"
149: " \"%s\" %s",
1.297 paf 150: level*4, "", opcode_name[opcode],
151: value.get_string()->cstr(), value.type());
1.133 paf 152: continue;
1.15 paf 153: }
1.297 paf 154: debug_printf(sapi_info, "%*s%s", level*4, "", opcode_name[opcode]);
1.1 paf 155:
1.297 paf 156: switch(opcode) {
1.323 misha 157: case OP::OP_CURLY_CODE__STORE_PARAM:
158: case OP::OP_EXPR_CODE__STORE_PARAM:
159: case OP::OP_CURLY_CODE__CONSTRUCT:
160: case OP::OP_NESTED_CODE:
161: case OP::OP_OBJECT_POOL:
162: case OP::OP_STRING_POOL:
163: case OP::OP_CALL:
164: case OP::OP_CALL__WRITE:
1.297 paf 165: if(ArrayOperation* local_ops=i.next().ops)
166: debug_dump(sapi_info, level+1, *local_ops);
1.1 paf 167: }
168: }
169: }
1.336 misha 170: #define DEBUG_PRINT_STR(str) debug_printf(sapi_info, str);
171: #define DEBUG_PRINT_STRING(value) debug_printf(sapi_info, " \"%s\" ", value.cstr());
172: #define DEBUG_PRINT_OPS(local_ops) \
173: debug_printf(sapi_info, \
174: " (%d)\n", local_ops?local_ops->count():0); \
175: if(local_ops) debug_dump(sapi_info, 1, *local_ops);
176:
177: #else
178: #define DEBUG_PRINT_STR(str)
179: #define DEBUG_PRINT_STRING(value)
180: #define DEBUG_PRINT_OPS(local_ops)
1.157 parser 181: #endif
1.1 paf 182:
1.336 misha 183:
1.297 paf 184: // Request
185:
186: void Request::execute(ArrayOperation& ops) {
187: register Stack<StackItem>& stack=this->stack; // helps a lot on MSVC: 'esi'
1.159 parser 188:
1.304 paf 189: const String* debug_name=0; Operation::Origin debug_origin={0, 0, 0};
1.297 paf 190: try{
1.157 parser 191: #ifdef DEBUG_EXECUTE
1.297 paf 192: debug_printf(sapi_info, "source----------------------------\n");
193: debug_dump(sapi_info, 0, ops);
194: debug_printf(sapi_info, "execution-------------------------\n");
1.157 parser 195: #endif
1.297 paf 196: for(Array_iterator<Operation> i(ops); i.has_next(); ) {
1.322 misha 197: OP::OPCODE opcode=i.next().code;
1.293 paf 198:
1.157 parser 199: #ifdef DEBUG_EXECUTE
1.297 paf 200: debug_printf(sapi_info, "%d:%s", stack.top_index()+1, opcode_name[opcode]);
1.157 parser 201: #endif
1.11 paf 202:
1.297 paf 203: switch(opcode) {
1.51 paf 204: // param in next instruction
1.322 misha 205: case OP::OP_VALUE:
1.32 paf 206: {
1.297 paf 207: debug_origin=i.next().origin;
208: Value& value=*i.next().value;
1.157 parser 209: #ifdef DEBUG_EXECUTE
1.297 paf 210: debug_printf(sapi_info, " \"%s\" %s", value.get_string()->cstr(), value.type());
1.157 parser 211: #endif
1.297 paf 212: stack.push(value);
1.32 paf 213: break;
214: }
1.328 misha 215:
216: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
217: case OP::OP_VALUE__GET_CLASS:
218: {
219: // maybe they do ^class:method[] call, remember the fact
220: wcontext->set_somebody_entered_some_class();
221:
222: debug_origin=i.next().origin;
223: Value& value=*i.next().value;
224: const String& name=*value.get_string();
225:
1.336 misha 226: DEBUG_PRINT_STRING(name)
1.328 misha 227:
228: Value* class_value=classes().get(name);
229: if(!class_value)
230: throw Exception(PARSER_RUNTIME,
231: &name,
232: "class is undefined");
233:
234: stack.push(*class_value);
235: break;
236: }
237: #else
1.322 misha 238: case OP::OP_GET_CLASS:
1.38 paf 239: {
1.130 paf 240: // maybe they do ^class:method[] call, remember the fact
1.215 paf 241: wcontext->set_somebody_entered_some_class();
1.98 paf 242:
1.297 paf 243: const String& name=stack.pop().string();
244: Value* value=classes().get(name);
1.120 paf 245: if(!value)
1.316 misha 246: throw Exception(PARSER_RUNTIME,
1.66 paf 247: &name,
1.143 paf 248: "class is undefined");
1.66 paf 249:
1.297 paf 250: stack.push(*value);
1.38 paf 251: break;
252: }
1.328 misha 253: #endif
1.51 paf 254: // OP_WITH
1.322 misha 255: case OP::OP_WITH_ROOT:
1.187 parser 256: {
1.297 paf 257: stack.push(*method_frame);
1.187 parser 258: break;
259: }
1.336 misha 260: case OP::OP_WITH_SELF:
1.37 paf 261: {
1.297 paf 262: stack.push(get_self());
1.37 paf 263: break;
264: }
1.336 misha 265: case OP::OP_WITH_READ:
1.15 paf 266: {
1.297 paf 267: stack.push(*rcontext);
1.20 paf 268: break;
269: }
1.336 misha 270: case OP::OP_WITH_WRITE:
1.20 paf 271: {
1.287 paf 272: if(wcontext==method_frame)
1.316 misha 273: throw Exception(PARSER_RUNTIME,
1.287 paf 274: 0,
275: "$.name outside of $name[...]");
276:
1.297 paf 277: stack.push(*wcontext);
1.20 paf 278: break;
279: }
1.37 paf 280:
1.51 paf 281: // OTHER ACTIONS BUT WITHs
1.322 misha 282: case OP::OP_CONSTRUCT_VALUE:
1.20 paf 283: {
1.297 paf 284: Value& value=stack.pop().value();
285: const String& name=stack.pop().string(); debug_name=&name;
286: Value& ncontext=stack.pop().value();
1.329 misha 287: put_element(ncontext, name, &value);
1.308 paf 288:
1.213 paf 289: break;
290: }
1.337 ! misha 291:
! 292: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
! 293: case OP::OP_ROOT_CONSTRUCT_EXPR:
! 294: {
! 295: debug_origin=i.next().origin;
! 296: const String& name=*i.next().value->get_string(); debug_name=&name;
! 297:
! 298: i.next(); // skip origin
! 299: Value& expr=*i.next().value;
! 300:
! 301: DEBUG_PRINT_STRING(name)
! 302:
! 303: wcontext->set_in_expression(true);
! 304:
! 305: Value& value=expr.as_expr_result();
! 306: put_element(*method_frame, name, &value);
! 307: break;
! 308: }
! 309:
! 310: case OP::OP_WRITE_CONSTRUCT_EXPR:
! 311: {
! 312: if(wcontext==method_frame)
! 313: throw Exception(PARSER_RUNTIME,
! 314: 0,
! 315: "$.name outside of $name[...]");
! 316:
! 317: debug_origin=i.next().origin;
! 318: const String& name=*i.next().value->get_string(); debug_name=&name;
! 319:
! 320: i.next(); // skip origin
! 321: Value& expr=*i.next().value;
! 322:
! 323: DEBUG_PRINT_STRING(name)
! 324:
! 325: wcontext->set_in_expression(true);
! 326:
! 327: Value& value=expr.as_expr_result();
! 328: put_element(*wcontext, name, &value);
! 329: break;
! 330: }
! 331:
! 332: case OP::OP_ROOT_CONSTRUCT_VALUE:
! 333: {
! 334: debug_origin=i.next().origin;
! 335: const String& name=*i.next().value->get_string(); debug_name=&name;
! 336:
! 337: i.next(); // skip origin
! 338: Value& value=*i.next().value;
! 339:
! 340: DEBUG_PRINT_STRING(name)
! 341:
! 342: put_element(*method_frame, name, &value);
! 343: break;
! 344: }
! 345:
! 346: case OP::OP_WRITE_CONSTRUCT_VALUE:
! 347: {
! 348: if(wcontext==method_frame)
! 349: throw Exception(PARSER_RUNTIME,
! 350: 0,
! 351: "$.name outside of $name[...]");
! 352:
! 353: debug_origin=i.next().origin;
! 354: const String& name=*i.next().value->get_string(); debug_name=&name;
! 355:
! 356: i.next(); // skip origin
! 357: Value& value=*i.next().value;
! 358:
! 359: DEBUG_PRINT_STRING(name)
! 360:
! 361: put_element(*wcontext, name, &value);
! 362: break;
! 363: }
! 364: #endif
! 365:
1.322 misha 366: case OP::OP_CONSTRUCT_EXPR:
1.80 paf 367: {
1.219 paf 368: // see OP_PREPARE_TO_EXPRESSION
369: wcontext->set_in_expression(false);
370:
1.308 paf 371: Value& expr=stack.pop().value();
1.297 paf 372: const String& name=stack.pop().string(); debug_name=&name;
373: Value& ncontext=stack.pop().value();
1.308 paf 374: Value& value=expr.as_expr_result();
1.329 misha 375: put_element(ncontext, name, &value);
1.80 paf 376: break;
377: }
1.337 ! misha 378:
1.322 misha 379: case OP::OP_CURLY_CODE__CONSTRUCT:
1.182 parser 380: {
1.297 paf 381: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 382:
383: DEBUG_PRINT_OPS((&local_ops))
384:
1.326 misha 385: VJunction& value=*new VJunction(
1.297 paf 386: get_self(), 0,
1.257 paf 387: method_frame,
1.240 paf 388: rcontext,
389: wcontext,
1.312 paf 390: &local_ops);
1.238 paf 391:
1.326 misha 392: wcontext->attach_junction(&value);
393:
1.297 paf 394: const String& name=stack.pop().string(); debug_name=&name;
395: Value& ncontext=stack.pop().value();
1.312 paf 396: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, &value, false))
397: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT)
1.316 misha 398: throw Exception(PARSER_RUNTIME,
1.308 paf 399: 0,
400: "property value can not be code, use [] or () brackets");
401:
1.182 parser 402: break;
403: }
1.322 misha 404: case OP::OP_NESTED_CODE:
1.209 paf 405: {
1.297 paf 406: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 407:
408: DEBUG_PRINT_OPS((&local_ops))
409:
1.297 paf 410: stack.push(local_ops);
1.209 paf 411: break;
412: }
1.322 misha 413: case OP::OP_WRITE_VALUE:
1.13 paf 414: {
1.297 paf 415: Value& value=stack.pop().value();
416: write_assign_lang(value);
1.86 paf 417: break;
418: }
1.322 misha 419: case OP::OP_WRITE_EXPR_RESULT:
1.108 paf 420: {
1.297 paf 421: Value& value=stack.pop().value();
422: write_no_lang(value.as_expr_result());
1.230 paf 423:
424: // must be after write(result) and
1.219 paf 425: // see OP_PREPARE_TO_EXPRESSION
426: wcontext->set_in_expression(false);
1.108 paf 427: break;
428: }
1.322 misha 429: case OP::OP_STRING__WRITE:
1.86 paf 430: {
1.297 paf 431: i.next(); // ignore origin
432: Value* value=i.next().value;
1.336 misha 433:
434: const String& string_value=*value->get_string();
435:
436: DEBUG_PRINT_STRING(string_value)
437:
438: write_no_lang(string_value);
1.13 paf 439: break;
1.14 paf 440: }
1.328 misha 441:
442: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
443: case OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR:
444: {
445: debug_origin=i.next().origin;
446: const String& name=*i.next().value->get_string(); debug_name=&name;
447:
1.336 misha 448: DEBUG_PRINT_STRING(name)
449:
1.330 misha 450: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
451: if(!method->junction_template) method->junction_template=new VJunction(main_class, method);
452: stack.push(*method->junction_template);
453: break;
454: }
455: Value& value=get_element(*rcontext, name);
1.328 misha 456: stack.push(value);
457: break;
458: }
459: #else
1.322 misha 460: case OP::OP_GET_ELEMENT_OR_OPERATOR:
1.215 paf 461: {
1.297 paf 462: const String& name=stack.pop().string(); debug_name=&name;
463: Value& ncontext=stack.pop().value();
1.330 misha 464: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
465: if(!method->junction_template) method->junction_template=new VJunction(main_class, method);
466: stack.push(*method->junction_template);
467: break;
468: }
469: Value& value=get_element(ncontext, name);
1.297 paf 470: stack.push(value);
1.215 paf 471: break;
472: }
1.328 misha 473: #endif
474:
1.335 misha 475: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
476: case OP::OP_GET_OBJECT_ELEMENT:
477: case OP::OP_GET_OBJECT_ELEMENT__WRITE:
1.334 misha 478: {
479: debug_origin=i.next().origin;
480: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
1.336 misha 481:
482: DEBUG_PRINT_STRING(context_name)
483:
1.334 misha 484: Value& object=get_element(*rcontext, context_name);
485:
486: debug_origin=i.next().origin;
487: const String& field_name=*i.next().value->get_string(); debug_name=&field_name;
1.336 misha 488:
489: DEBUG_PRINT_STRING(field_name)
490:
1.334 misha 491: Value& value=get_element(object, field_name);
492:
493: i.next(); // skip last OP_GET_ELEMENT
494:
1.335 misha 495: if(opcode==OP::OP_GET_OBJECT_ELEMENT){
496: stack.push(value);
497: } else {
498: write_assign_lang(value);
499: }
500: break;
501: }
502: #endif
503:
504: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
505: case OP::OP_GET_OBJECT_VAR_ELEMENT:
506: case OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE:
507: {
508: debug_origin=i.next().origin;
509: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
1.336 misha 510:
511: DEBUG_PRINT_STRING(context_name)
512:
1.335 misha 513: Value& object=get_element(*rcontext, context_name);
514:
515: debug_origin=i.next().origin;
516: const String& var_name=*i.next().value->get_string(); debug_name=&var_name;
1.336 misha 517:
518: DEBUG_PRINT_STRING(var_name)
519:
1.335 misha 520: const String* field=get_element(*rcontext, var_name).get_string();
521:
522: Value& value=get_element(object, *field);
523:
524: i.next(); // skip last OP_GET_ELEMENT
525:
526: if(opcode==OP::OP_GET_OBJECT_VAR_ELEMENT){
1.334 misha 527: stack.push(value);
528: } else {
529: write_assign_lang(value);
530: }
531: break;
532: }
533: #endif
534:
1.322 misha 535: case OP::OP_GET_ELEMENT:
1.11 paf 536: {
1.297 paf 537: const String& name=stack.pop().string(); debug_name=&name;
538: Value& ncontext=stack.pop().value();
1.330 misha 539: Value& value=get_element(ncontext, name);
1.297 paf 540: stack.push(value);
1.17 paf 541: break;
542: }
543:
1.328 misha 544: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
545: case OP::OP_VALUE__GET_ELEMENT:
546: {
547: debug_origin=i.next().origin;
548: const String& name=*i.next().value->get_string(); debug_name=&name;
549:
1.336 misha 550: DEBUG_PRINT_STRING(name)
1.328 misha 551:
1.330 misha 552: Value& value=get_element(*rcontext, name);
1.328 misha 553: stack.push(value);
554: break;
555: }
556: #endif
557:
558:
1.322 misha 559: case OP::OP_GET_ELEMENT__WRITE:
1.17 paf 560: {
1.297 paf 561: const String& name=stack.pop().string(); debug_name=&name;
562: Value& ncontext=stack.pop().value();
1.330 misha 563: Value& value=get_element(ncontext, name);
1.297 paf 564: write_assign_lang(value);
1.17 paf 565: break;
566: }
567:
1.328 misha 568: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
569: case OP::OP_VALUE__GET_ELEMENT__WRITE:
570: {
571: debug_origin=i.next().origin;
572: const String& name=*i.next().value->get_string(); debug_name=&name;
573:
1.336 misha 574: DEBUG_PRINT_STRING(name)
1.328 misha 575:
1.330 misha 576: Value& value=get_element(*rcontext, name);
1.328 misha 577: write_assign_lang(value);
578: break;
579: }
580: #endif
1.32 paf 581:
1.322 misha 582: case OP::OP_OBJECT_POOL:
1.17 paf 583: {
1.297 paf 584: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 585:
1.257 paf 586: WContext *saved_wcontext=wcontext;
1.297 paf 587: String::Language saved_lang=flang;
588: flang=String::L_PASS_APPENDED;
589: WWrapper local(0/*empty*/, wcontext);
1.226 paf 590: wcontext=&local;
591:
1.297 paf 592: execute(local_ops);
1.226 paf 593:
1.297 paf 594: stack.push(wcontext->result().as_value());
1.257 paf 595: flang=saved_lang;
596: wcontext=saved_wcontext;
1.13 paf 597: break;
1.15 paf 598: }
1.13 paf 599:
1.322 misha 600: case OP::OP_STRING_POOL:
1.49 paf 601: {
1.297 paf 602: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 603:
1.257 paf 604: WContext *saved_wcontext=wcontext;
1.297 paf 605: WWrapper local(0 /*empty*/, wcontext);
1.226 paf 606: wcontext=&local;
607:
1.297 paf 608: execute(local_ops);
1.226 paf 609:
1.297 paf 610: Value* value;
1.49 paf 611: // from "$a $b" part of expression taking only string value,
612: // ignoring any other content of wcontext
1.297 paf 613: if(const String* string=wcontext->get_string())
614: value=new VString(*string);
1.80 paf 615: else
1.324 misha 616: value=VVoid::get();
1.297 paf 617: stack.push(*value);
618:
1.257 paf 619: wcontext=saved_wcontext;
1.49 paf 620: break;
621: }
622:
1.51 paf 623: // CALL
1.322 misha 624: case OP::OP_CURLY_CODE__STORE_PARAM:
625: case OP::OP_EXPR_CODE__STORE_PARAM:
1.28 paf 626: {
1.237 paf 627: // code
1.297 paf 628: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 629:
630: DEBUG_PRINT_OPS((&local_ops))
631:
1.237 paf 632: // when they evaluate expression parameter,
633: // the object expression result
634: // does not need to be written into calling frame
635: // it must go into any expressions using that parameter
636: // hence, we zero junction.wcontext here, and later
637: // in .process we would test that field
638: // in decision "which wwrapper to use"
1.326 misha 639: VJunction& value=*new VJunction(
1.297 paf 640: get_self(), 0,
1.257 paf 641: method_frame,
1.237 paf 642: rcontext,
1.322 misha 643: opcode==OP::OP_EXPR_CODE__STORE_PARAM?0:wcontext,
1.312 paf 644: &local_ops);
1.326 misha 645: #ifdef USE_DESTRUCTORS
646: value.set_temporal(true);
647: #else
648: if (opcode!=OP::OP_EXPR_CODE__STORE_PARAM)
649: #endif
650: wcontext->attach_junction(&value);
1.237 paf 651: // store param
1.329 misha 652: stack.push(value);
1.29 paf 653: break;
654: }
655:
1.322 misha 656: case OP::OP_PREPARE_TO_CONSTRUCT_OBJECT:
1.186 parser 657: {
1.200 paf 658: wcontext->set_constructing(true);
1.186 parser 659: break;
660: }
1.219 paf 661:
1.322 misha 662: case OP::OP_PREPARE_TO_EXPRESSION:
1.219 paf 663: {
664: wcontext->set_in_expression(true);
665: break;
666: }
667:
1.322 misha 668: case OP::OP_CALL:
1.29 paf 669: {
1.297 paf 670: ArrayOperation* local_ops=i.next().ops;
1.237 paf 671:
1.336 misha 672: DEBUG_PRINT_OPS(local_ops)
673: DEBUG_PRINT_STR("->\n")
674:
1.297 paf 675: Value& value=stack.pop().value();
1.237 paf 676:
1.297 paf 677: Junction* junction=value.get_junction();
678: if(!junction) {
679: if(value.is("void"))
1.316 misha 680: throw Exception(PARSER_RUNTIME,
1.297 paf 681: 0,
682: "undefined method");
683: else
1.316 misha 684: throw Exception(PARSER_RUNTIME,
1.297 paf 685: 0,
686: "is '%s', not a method or junction, can not call it",
687: value.type());
688: }
1.237 paf 689:
1.321 misha 690: VMethodFrame frame(*junction, method_frame);
1.330 misha 691:
1.321 misha 692: if(local_ops){ // store param code goes here
1.329 misha 693: size_t first = stack.top_index();
1.321 misha 694: execute(*local_ops);
1.329 misha 695: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
1.332 misha 696: op_call(frame);
1.329 misha 697: stack.set_top_index(first);
1.330 misha 698: } else {
699: frame.empty_params();
1.332 misha 700: op_call(frame);
1.321 misha 701: }
1.330 misha 702:
1.332 misha 703: stack.push(frame.result().as_value());
704:
1.336 misha 705: DEBUG_PRINT_STR("<-returned")
706:
1.332 misha 707: if(get_skip())
708: return;
709: if(get_interrupted()) {
710: set_interrupted(false);
711: throw Exception("parser.interrupted",
712: 0,
713: "execution stopped");
1.237 paf 714: }
1.332 misha 715: break;
716: }
1.220 paf 717:
1.332 misha 718: case OP::OP_CALL__WRITE:
719: {
720: ArrayOperation* local_ops=i.next().ops;
721:
1.336 misha 722: DEBUG_PRINT_OPS(local_ops)
723: DEBUG_PRINT_STR("->\n")
724:
1.332 misha 725: Value& value=stack.pop().value();
726:
727: Junction* junction=value.get_junction();
728: if(!junction) {
729: if(value.is("void"))
730: throw Exception(PARSER_RUNTIME,
731: 0,
732: "undefined method");
733: else
734: throw Exception(PARSER_RUNTIME,
735: 0,
736: "is '%s', not a method or junction, can not call it",
737: value.type());
738: }
739:
740: #ifdef OPTIMIZE_CALL
741: const Method& method=*junction->method;
742: if (!wcontext->get_constructing() && method.call_optimization==Method::CO_WITHOUT_FRAME){
743: if(local_ops){ // store param code goes here
744: size_t first = stack.top_index();
745: execute(*local_ops);
746:
747: MethodParams method_params;
748: method_params.store_params((Value**)stack.ptr(first), stack.top_index()-first);
749: method.check_actual_numbered_params(junction->self, &method_params);
750: method.native_code(*this, method_params); // execute it
751:
752: stack.set_top_index(first);
753: } else {
754: MethodParams method_params;
755: method.check_actual_numbered_params(junction->self, &method_params);
756: method.native_code(*this, method_params); // execute it
757: }
758: } else if (!wcontext->get_constructing() && method.call_optimization==Method::CO_WITHOUT_WCONTEXT){
759: VMethodFrame frame(*junction, method_frame);
760: if(local_ops){ // store param code goes here
761: size_t first = stack.top_index();
762: execute(*local_ops);
763:
764: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
765: op_call_write(frame);
766:
767: stack.set_top_index(first);
768: } else {
769: frame.empty_params();
770: op_call_write(frame);
771: }
772: } else
773: #endif // OPTIMIZE_CALL
774: {
775: VMethodFrame frame(*junction, method_frame);
776: if(local_ops){ // store param code goes here
777: size_t first = stack.top_index();
778: execute(*local_ops);
779:
780: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
781: op_call(frame);
782:
783: stack.set_top_index(first);
784: } else {
785: frame.empty_params();
786: op_call(frame);
787: }
788: write_assign_lang(frame.result());
789: }
1.336 misha 790:
791: DEBUG_PRINT_STR("<-returned")
1.327 misha 792:
793: if(get_skip())
794: return;
795: if(get_interrupted()) {
796: set_interrupted(false);
797: throw Exception("parser.interrupted",
798: 0,
799: "execution stopped");
800: }
1.49 paf 801: break;
802: }
803:
1.55 paf 804: // expression ops: unary
1.322 misha 805: case OP::OP_NEG:
1.55 paf 806: {
1.297 paf 807: Value& a=stack.pop().value();
808: Value& value=*new VDouble(-a.as_double());
809: stack.push(value);
1.55 paf 810: break;
811: }
1.322 misha 812: case OP::OP_INV:
1.55 paf 813: {
1.297 paf 814: Value& a=stack.pop().value();
815: Value& value=*new VDouble(~a.as_int());
816: stack.push(value);
1.55 paf 817: break;
818: }
1.322 misha 819: case OP::OP_NOT:
1.55 paf 820: {
1.297 paf 821: Value& a=stack.pop().value();
1.327 misha 822: Value& value=VBool::get(!a.as_bool());
1.297 paf 823: stack.push(value);
1.55 paf 824: break;
825: }
1.322 misha 826: case OP::OP_DEF:
1.62 paf 827: {
1.297 paf 828: Value& a=stack.pop().value();
1.327 misha 829: Value& value=VBool::get(a.is_defined());
1.297 paf 830: stack.push(value);
1.62 paf 831: break;
832: }
1.322 misha 833: case OP::OP_IN:
1.62 paf 834: {
1.297 paf 835: Value& a=stack.pop().value();
836: const String& path=a.as_string();
1.327 misha 837: Value& value=VBool::get(request_info.uri && *request_info.uri && path.this_starts(request_info.uri));
1.297 paf 838: stack.push(value);
1.62 paf 839: break;
840: }
1.322 misha 841: case OP::OP_FEXISTS:
1.62 paf 842: {
1.297 paf 843: Value& a=stack.pop().value();
1.327 misha 844: Value& value=VBool::get(file_exist(absolute(a.as_string())));
1.297 paf 845: stack.push(value);
1.148 paf 846: break;
847: }
1.322 misha 848: case OP::OP_DEXISTS:
1.148 paf 849: {
1.297 paf 850: Value& a=stack.pop().value();
1.327 misha 851: Value& value=VBool::get(dir_exists(absolute(a.as_string())));
1.297 paf 852: stack.push(value);
1.62 paf 853: break;
854: }
1.55 paf 855:
856: // expression ops: binary
1.322 misha 857: case OP::OP_SUB:
1.53 paf 858: {
1.297 paf 859: Value& b=stack.pop().value(); Value& a=stack.pop().value();
860: Value& value=*new VDouble(a.as_double() - b.as_double());
861: stack.push(value);
1.53 paf 862: break;
863: }
1.322 misha 864: case OP::OP_ADD:
1.53 paf 865: {
1.297 paf 866: Value& b=stack.pop().value(); Value& a=stack.pop().value();
867: Value& value=*new VDouble(a.as_double() + b.as_double());
868: stack.push(value);
1.53 paf 869: break;
870: }
1.322 misha 871: case OP::OP_MUL:
1.49 paf 872: {
1.297 paf 873: Value& b=stack.pop().value(); Value& a=stack.pop().value();
874: Value& value=*new VDouble(a.as_double() * b.as_double());
875: stack.push(value);
1.53 paf 876: break;
877: }
1.322 misha 878: case OP::OP_DIV:
1.53 paf 879: {
1.297 paf 880: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 881:
1.297 paf 882: double a_double=a.as_double();
883: double b_double=b.as_double();
1.170 parser 884:
1.171 parser 885: if(b_double == 0) {
1.297 paf 886: //const String* problem_source=b.as_string();
1.223 paf 887: throw Exception("number.zerodivision",
1.297 paf 888: 0, //problem_source,
1.170 parser 889: "Division by zero");
1.171 parser 890: }
1.170 parser 891:
1.297 paf 892: Value& value=*new VDouble(a_double / b_double);
893: stack.push(value);
1.54 paf 894: break;
895: }
1.322 misha 896: case OP::OP_MOD:
1.55 paf 897: {
1.297 paf 898: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 899:
1.297 paf 900: double a_double=a.as_double();
901: double b_double=b.as_double();
1.170 parser 902:
1.173 parser 903: if(b_double == 0) {
1.297 paf 904: //const String* problem_source=b.as_string();
1.223 paf 905: throw Exception("number.zerodivision",
1.297 paf 906: 0, //problem_source,
1.170 parser 907: "Modulus by zero");
1.171 parser 908: }
1.170 parser 909:
1.297 paf 910: Value& value=*new VDouble(fmod(a_double, b_double));
911: stack.push(value);
1.201 paf 912: break;
913: }
1.322 misha 914: case OP::OP_INTDIV:
1.201 paf 915: {
1.297 paf 916: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.201 paf 917:
1.297 paf 918: int a_int=a.as_int();
919: int b_int=b.as_int();
1.201 paf 920:
921: if(b_int == 0) {
1.297 paf 922: //const String* problem_source=b.as_string();
1.223 paf 923: throw Exception("number.zerodivision",
1.297 paf 924: 0, //problem_source,
1.201 paf 925: "Division by zero");
926: }
927:
1.297 paf 928: Value& value=*new VInt(a_int / b_int);
929: stack.push(value);
1.55 paf 930: break;
931: }
1.322 misha 932: case OP::OP_BIN_SL:
1.274 paf 933: {
1.297 paf 934: Value& b=stack.pop().value(); Value& a=stack.pop().value();
935: Value& value=*new VInt(
936: a.as_int() <<
937: b.as_int());
938: stack.push(value);
1.274 paf 939: break;
940: }
1.322 misha 941: case OP::OP_BIN_SR:
1.274 paf 942: {
1.297 paf 943: Value& b=stack.pop().value(); Value& a=stack.pop().value();
944: Value& value=*new VInt(
945: a.as_int() >>
946: b.as_int());
947: stack.push(value);
1.274 paf 948: break;
949: }
1.322 misha 950: case OP::OP_BIN_AND:
1.54 paf 951: {
1.297 paf 952: Value& b=stack.pop().value(); Value& a=stack.pop().value();
953: Value& value=*new VInt(
954: a.as_int() &
955: b.as_int());
956: stack.push(value);
1.54 paf 957: break;
958: }
1.322 misha 959: case OP::OP_BIN_OR:
1.54 paf 960: {
1.297 paf 961: Value& b=stack.pop().value(); Value& a=stack.pop().value();
962: Value& value=*new VInt(
963: a.as_int() |
964: b.as_int());
965: stack.push(value);
1.55 paf 966: break;
967: }
1.322 misha 968: case OP::OP_BIN_XOR:
1.56 paf 969: {
1.297 paf 970: Value& b=stack.pop().value(); Value& a=stack.pop().value();
971: Value& value=*new VInt(
972: a.as_int() ^
973: b.as_int());
974: stack.push(value);
1.56 paf 975: break;
976: }
1.322 misha 977: case OP::OP_LOG_AND:
1.55 paf 978: {
1.297 paf 979: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 980: bool result;
1.297 paf 981: if(a.as_bool()) {
982: execute(local_ops);
983: Value& b=stack.pop().value();
984: result=b.as_bool();
1.209 paf 985: } else
1.263 paf 986: result=false;
1.327 misha 987: Value& value=VBool::get(result);
1.297 paf 988: stack.push(value);
1.55 paf 989: break;
990: }
1.322 misha 991: case OP::OP_LOG_OR:
1.55 paf 992: {
1.297 paf 993: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 994: bool result;
1.297 paf 995: if(a.as_bool())
1.263 paf 996: result=true;
1.209 paf 997: else {
1.297 paf 998: execute(local_ops);
999: Value& b=stack.pop().value();
1000: result=b.as_bool();
1.209 paf 1001: }
1.327 misha 1002: Value& value=VBool::get(result);
1.297 paf 1003: stack.push(value);
1.56 paf 1004: break;
1005: }
1.322 misha 1006: case OP::OP_LOG_XOR:
1.56 paf 1007: {
1.297 paf 1008: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1009: Value& value=VBool::get(a.as_bool() ^ b.as_bool());
1.297 paf 1010: stack.push(value);
1.55 paf 1011: break;
1012: }
1.322 misha 1013: case OP::OP_NUM_LT:
1.55 paf 1014: {
1.297 paf 1015: volatile double b_double=stack.pop().value().as_double();
1016: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1017: Value& value=VBool::get(a_double<b_double);
1.297 paf 1018: stack.push(value);
1.55 paf 1019: break;
1020: }
1.322 misha 1021: case OP::OP_NUM_GT:
1.55 paf 1022: {
1.297 paf 1023: volatile double b_double=stack.pop().value().as_double();
1024: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1025: Value& value=VBool::get(a_double>b_double);
1.297 paf 1026: stack.push(value);
1.55 paf 1027: break;
1028: }
1.322 misha 1029: case OP::OP_NUM_LE:
1.55 paf 1030: {
1.297 paf 1031: volatile double b_double=stack.pop().value().as_double();
1032: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1033: Value& value=VBool::get(a_double<=b_double);
1.297 paf 1034: stack.push(value);
1.55 paf 1035: break;
1036: }
1.322 misha 1037: case OP::OP_NUM_GE:
1.55 paf 1038: {
1.297 paf 1039: volatile double b_double=stack.pop().value().as_double();
1040: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1041: Value& value=VBool::get(a_double>=b_double);
1.297 paf 1042: stack.push(value);
1.55 paf 1043: break;
1044: }
1.322 misha 1045: case OP::OP_NUM_EQ:
1.55 paf 1046: {
1.297 paf 1047: volatile double b_double=stack.pop().value().as_double();
1048: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1049: Value& value=VBool::get(a_double==b_double);
1.297 paf 1050: stack.push(value);
1.55 paf 1051: break;
1052: }
1.322 misha 1053: case OP::OP_NUM_NE:
1.55 paf 1054: {
1.297 paf 1055: volatile double b_double=stack.pop().value().as_double();
1056: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1057: Value& value=VBool::get(a_double!=b_double);
1.297 paf 1058: stack.push(value);
1.54 paf 1059: break;
1060: }
1.322 misha 1061: case OP::OP_STR_LT:
1.58 paf 1062: {
1.297 paf 1063: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1064: Value& value=VBool::get(a.as_string() < b.as_string());
1.297 paf 1065: stack.push(value);
1.58 paf 1066: break;
1067: }
1.322 misha 1068: case OP::OP_STR_GT:
1.58 paf 1069: {
1.297 paf 1070: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1071: Value& value=VBool::get(a.as_string() > b.as_string());
1.297 paf 1072: stack.push(value);
1.58 paf 1073: break;
1074: }
1.322 misha 1075: case OP::OP_STR_LE:
1.58 paf 1076: {
1.297 paf 1077: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1078: Value& value=VBool::get(a.as_string() <= b.as_string());
1.297 paf 1079: stack.push(value);
1.58 paf 1080: break;
1081: }
1.322 misha 1082: case OP::OP_STR_GE:
1.54 paf 1083: {
1.297 paf 1084: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1085: Value& value=VBool::get(a.as_string() >= b.as_string());
1.297 paf 1086: stack.push(value);
1.58 paf 1087: break;
1088: }
1.322 misha 1089: case OP::OP_STR_EQ:
1.58 paf 1090: {
1.297 paf 1091: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1092: Value& value=VBool::get(a.as_string() == b.as_string());
1.297 paf 1093: stack.push(value);
1.58 paf 1094: break;
1095: }
1.322 misha 1096: case OP::OP_STR_NE:
1.58 paf 1097: {
1.297 paf 1098: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1099: Value& value=VBool::get(a.as_string() != b.as_string());
1.297 paf 1100: stack.push(value);
1.103 paf 1101: break;
1102: }
1.322 misha 1103: case OP::OP_IS:
1.103 paf 1104: {
1.297 paf 1105: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1106: Value& value=VBool::get(a.is(b.as_string().cstr()));
1.297 paf 1107: stack.push(value);
1.28 paf 1108: break;
1109: }
1110:
1.11 paf 1111: default:
1.223 paf 1112: throw Exception(0,
1.67 paf 1113: 0,
1.297 paf 1114: "invalid opcode %d", opcode);
1.11 paf 1115: }
1116: }
1.306 paf 1117: } catch(const Exception&) {
1.297 paf 1118: // record it to stack trace
1.301 paf 1119: if(debug_name)
1120: exception_trace.push(Trace(debug_name, debug_origin));
1.297 paf 1121: rethrow;
1122: }
1.1 paf 1123: }
1.17 paf 1124:
1.330 misha 1125: #define SAVE_CONTEXT \
1126: VMethodFrame *saved_method_frame=method_frame; \
1127: Value* saved_rcontext=rcontext; \
1128: WContext *saved_wcontext=wcontext;
1129:
1130: #define RESTORE_CONTEXT \
1131: wcontext=saved_wcontext; \
1132: rcontext=saved_rcontext; \
1133: method_frame=saved_method_frame;
1134:
1.332 misha 1135: void Request::op_call(VMethodFrame& frame){
1136: const Junction &junction=frame.junction;
1137: VStateless_class& called_class=*junction.self.get_class();
1.319 misha 1138: Value* new_self;
1.332 misha 1139:
1.319 misha 1140: if(wcontext->get_constructing()) {
1141: wcontext->set_constructing(false);
1.332 misha 1142: if(junction.method->call_type!=Method::CT_STATIC) {
1.319 misha 1143: // this is a constructor call
1144: HashStringValue& new_object_fields=*new HashStringValue();
1.332 misha 1145: if(new_self=called_class.create_new_value(fpool, new_object_fields)) {
1.319 misha 1146: // some stateless_class creatable derivates
1147: } else
1148: throw Exception(PARSER_RUNTIME,
1149: 0, //&frame.name(),
1150: "is not a constructor, system class '%s' can be constructed only implicitly",
1151: called_class.name().cstr());
1152:
1153: frame.write(*new_self,
1154: String::L_CLEAN // not used, always an object, not string
1155: );
1156: } else
1157: throw Exception(PARSER_RUNTIME,
1158: 0, //&frame.name(),
1159: "method is static and can not be used as constructor");
1.332 misha 1160: } else
1161: new_self=&junction.self;
1.319 misha 1162:
1163: frame.set_self(*new_self);
1164:
1165: // see OP_PREPARE_TO_EXPRESSION
1166: frame.set_in_expression(wcontext->get_in_expression());
1167:
1.332 misha 1168: SAVE_CONTEXT
1169:
1.319 misha 1170: rcontext=wcontext=&frame;
1.332 misha 1171: method_frame=&frame;
1.319 misha 1172:
1.332 misha 1173: const Method& method=*junction.method;
1174: Method::Call_type call_type=&called_class==new_self ? Method::CT_STATIC : Method::CT_DYNAMIC;
1.319 misha 1175:
1.332 misha 1176: if(method.call_type==Method::CT_ANY || method.call_type==call_type) { // allowed call type?
1177: if(method.native_code) { // native code?
1178: method.check_actual_numbered_params(junction.self, frame.numbered_params());
1179: method.native_code(*this, *frame.numbered_params()); // execute it
1180: } else // parser code, execute it
1181: recoursion_checked_execute(*method.parser_code);
1182: } else
1183: throw Exception(PARSER_RUNTIME,
1184: 0,
1185: "is not allowed to be called %s",
1186: call_type==Method::CT_STATIC?"statically":"dynamically");
1.334 misha 1187:
1.330 misha 1188: RESTORE_CONTEXT
1.332 misha 1189: //return &frame;
1190: }
1191:
1192: void Request::op_call_write(VMethodFrame& frame){
1193: const Junction &junction=frame.junction;
1194:
1195: frame.set_self(junction.self);
1196:
1197: VMethodFrame *saved_method_frame=method_frame;
1198: Value* saved_rcontext=rcontext;
1.319 misha 1199:
1.332 misha 1200: rcontext=&frame;
1201: method_frame=&frame;
1202:
1203: const Method& method=*junction.method;
1204: Method::Call_type call_type=junction.self.get_class()==&junction.self ? Method::CT_STATIC : Method::CT_DYNAMIC;
1205:
1.333 misha 1206: if(method.call_type==Method::CT_ANY || method.call_type==call_type) { // allowed call type?
1207: if(method.native_code) { // native code?
1208: method.check_actual_numbered_params(junction.self, frame.numbered_params());
1209: method.native_code(*this, *frame.numbered_params()); // execute it
1210: } else // parser code, execute it
1211: recoursion_checked_execute(*method.parser_code);
1.332 misha 1212: } else
1213: throw Exception(PARSER_RUNTIME,
1214: 0,
1215: "is not allowed to be called %s",
1216: call_type==Method::CT_STATIC?"statically":"dynamically");
1217:
1218: rcontext=saved_rcontext;
1219: method_frame=saved_method_frame;
1.319 misha 1220: }
1221:
1.292 paf 1222: /**
1223: @bug ^superbase:method would dynamically call ^base:method if there is any
1224: */
1.330 misha 1225: Value& Request::get_element(Value& ncontext, const String& name) {
1226: if(!wcontext->get_constructing() // not constructing
1227: && wcontext->get_somebody_entered_some_class() ) // ^class:method
1.297 paf 1228: if(VStateless_class *called_class=ncontext.get_class())
1.249 paf 1229: if(VStateless_class *read_class=rcontext->get_class())
1230: if(read_class->derived_from(*called_class)) // current derived from called
1.297 paf 1231: if(Value* base=get_self().base()) { // doing DYNAMIC call
1.330 misha 1232: Temp_derived temp_derived(*base, 0); // temporarily prevent go-back-down virtual calls
1233: Value *value=base->get_element(name, *base, true); // virtual-up lookup starting from parent
1234: return *(value ? &process_to_value(*value) : VVoid::get());
1.249 paf 1235: }
1.330 misha 1236:
1237: Value* value=ncontext.get_element(name, ncontext, true);
1.291 paf 1238:
1239: if(value && wcontext->get_constructing())
1.330 misha 1240: if(Junction* junction=value->get_junction())
1.297 paf 1241: if(junction->self.get_class()!=&ncontext)
1.316 misha 1242: throw Exception(PARSER_RUNTIME,
1.291 paf 1243: &name,
1.297 paf 1244: "constructor must be declared in class '%s'",
1245: ncontext.get_class()->name_cstr());
1.63 paf 1246:
1.330 misha 1247: return *(value ? &process_to_value(*value) : VVoid::get());
1.309 paf 1248: }
1249:
1.329 misha 1250: void Request::put_element(Value& ncontext, const String& name, Value* value) {
1.309 paf 1251: // put_element can return property-setting-junction
1.329 misha 1252: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, value, false))
1.312 paf 1253: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT) {
1.309 paf 1254: // process it
1.329 misha 1255: VMethodFrame frame(vjunction->junction(), method_frame/*caller*/);
1256: int param_count=frame.method_params_count();
1257:
1.309 paf 1258: if(param_count!=1)
1.316 misha 1259: throw Exception(PARSER_RUNTIME,
1.309 paf 1260: 0,
1261: "setter method must have ONE parameter (has %d parameters)", param_count);
1262:
1.329 misha 1263: frame.store_params(&value, 1);
1.309 paf 1264: frame.set_self(frame.junction.self);
1265:
1.330 misha 1266: SAVE_CONTEXT
1.309 paf 1267:
1268: rcontext=wcontext=&frame;
1269: method_frame=&frame;
1270:
1.311 paf 1271: // prevent non-string writes for better error reporting [setters are not expected to return anything]
1.309 paf 1272: wcontext->write(*method_frame);
1273:
1274: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1275: // we don't need it StringOrValue result=wcontext->result();
1276:
1.330 misha 1277: RESTORE_CONTEXT
1.309 paf 1278: }
1.34 paf 1279: }
1.70 paf 1280:
1.162 parser 1281: /** @param intercept_string
1.116 paf 1282: - true:
1283: they want result=string value,
1284: possible object result goes to wcontext
1285: - false:
1286: they want any result[string|object]
1287: nothing goes to wcontext.
1.125 paf 1288: used in @c (expression) params evaluation
1.224 paf 1289:
1.334 misha 1290: using the fact it's either string_ or value_ result requested to speed up checkes
1.116 paf 1291: */
1.229 paf 1292: StringOrValue Request::process(Value& input_value, bool intercept_string) {
1.297 paf 1293: Junction* junction=input_value.get_junction();
1.307 paf 1294: if(junction) {
1295: if(junction->is_getter) { // is it a getter-junction?
1.329 misha 1296: VMethodFrame frame(*junction, method_frame/*caller*/);
1297: int param_count=frame.method_params_count();
1298:
1.331 misha 1299: if(param_count){
1300: if(junction->auto_name){ // default getter
1301: if(param_count==1){
1302: Value *param=new VString(*junction->auto_name);
1303: frame.store_params(¶m, 1);
1304: } else
1305: throw Exception(PARSER_RUNTIME,
1306: 0,
1307: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1308: } else
1.320 misha 1309: throw Exception(PARSER_RUNTIME,
1310: 0,
1.331 misha 1311: "getter method must have no parameters (has %d parameters)", param_count);
1312: } // no need for else frame.empty_params()
1.320 misha 1313:
1.307 paf 1314: frame.set_self(frame.junction.self);
1315:
1.330 misha 1316: SAVE_CONTEXT
1.307 paf 1317:
1318: rcontext=wcontext=&frame;
1319: method_frame=&frame;
1320:
1321: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1322: StringOrValue result=wcontext->result();
1323:
1.330 misha 1324: RESTORE_CONTEXT
1.307 paf 1325:
1326: return result;
1327: }
1328:
1329: if(junction->code) { // is it a code-junction?
1330: // process it
1331: StringOrValue result;
1.336 misha 1332:
1333: DEBUG_PRINT_STR("ja->\n")
1.238 paf 1334:
1.307 paf 1335: if(!junction->method_frame)
1.316 misha 1336: throw Exception(PARSER_RUNTIME,
1.240 paf 1337: 0,
1338: "junction used outside of context");
1339:
1.330 misha 1340: SAVE_CONTEXT
1.307 paf 1341:
1342: method_frame=junction->method_frame;
1343: rcontext=junction->rcontext;
1344:
1345: // for expression method params
1346: // wcontext is set 0
1347: // using the fact in decision "which wwrapper to use"
1348: bool using_code_frame=intercept_string && junction->wcontext;
1349: if(using_code_frame) {
1.318 misha 1350: // almost plain wwrapper about junction wcontext
1351:
1352: VCodeFrame local(*junction->wcontext);
1.307 paf 1353: wcontext=&local;
1354:
1355: // execute it
1356: recoursion_checked_execute(*junction->code);
1357:
1358: // CodeFrame soul:
1.318 misha 1359: result=wcontext->result();
1.307 paf 1360: } else {
1361: // plain wwrapper
1362: WWrapper local(0/*empty*/, wcontext);
1363: wcontext=&local;
1364:
1365: // execute it
1366: recoursion_checked_execute(*junction->code);
1367:
1368: result=wcontext->result();
1369: }
1370:
1.330 misha 1371: RESTORE_CONTEXT
1.207 paf 1372:
1.336 misha 1373: DEBUG_PRINT_STR("<-ja returned")
1374:
1.307 paf 1375: return result;
1376: }
1377:
1378: // it is then method-junction, do not explode it
1379: // just return it as we do for usual objects
1380: }
1381:
1382: return input_value;
1.85 paf 1383: }
1384:
1.332 misha 1385: void Request::process_write(Value& input_value) {
1386: Junction* junction=input_value.get_junction();
1387: if(junction) {
1388: if(junction->is_getter) { // is it a getter-junction?
1389: VMethodFrame frame(*junction, method_frame/*caller*/);
1390: int param_count=frame.method_params_count();
1391:
1392: if(param_count){
1393: if(junction->auto_name){ // default getter
1394: if(param_count==1){
1395: Value *param=new VString(*junction->auto_name);
1396: frame.store_params(¶m, 1);
1397: } else
1398: throw Exception(PARSER_RUNTIME,
1399: 0,
1400: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1401: } else
1402: throw Exception(PARSER_RUNTIME,
1403: 0,
1404: "getter method must have no parameters (has %d parameters)", param_count);
1405: } // no need for else frame.empty_params()
1406:
1407: frame.set_self(frame.junction.self);
1408:
1409: SAVE_CONTEXT
1410:
1411: rcontext=wcontext=&frame;
1412: method_frame=&frame;
1413:
1414: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1415:
1416: RESTORE_CONTEXT
1417:
1418: write_pass_lang(frame.result());
1419: return;
1420: }
1421:
1422: if(junction->code) { // is it a code-junction?
1423: // process it
1.336 misha 1424:
1425: DEBUG_PRINT_STR("ja->\n")
1426:
1.332 misha 1427: if(!junction->method_frame)
1428: throw Exception(PARSER_RUNTIME,
1429: 0,
1430: "junction used outside of context");
1431:
1432: SAVE_CONTEXT
1433:
1434: method_frame=junction->method_frame;
1435: rcontext=junction->rcontext;
1436:
1437: // for expression method params
1438: // wcontext is set 0
1439: // using the fact in decision "which wwrapper to use"
1440: #ifdef OPTIMIZE_CALL
1441: if(wcontext==junction->wcontext){
1442: // no wrappers for wcontext
1443: recoursion_checked_execute(*junction->code);
1444: RESTORE_CONTEXT
1445:
1446: } else
1447: #endif
1448: if(junction->wcontext) {
1449: // almost plain wwrapper about junction wcontext
1450: VCodeFrame local(*junction->wcontext);
1451: wcontext=&local;
1452:
1453: // execute it
1454: recoursion_checked_execute(*junction->code);
1455: RESTORE_CONTEXT
1456: write_pass_lang(local.result());
1457: } else {
1458: // plain wwrapper
1459: WWrapper local(0/*empty*/, wcontext);
1460: wcontext=&local;
1461:
1462: // execute it
1463: recoursion_checked_execute(*junction->code);
1464: RESTORE_CONTEXT
1465: write_pass_lang(local.result());
1466: }
1.336 misha 1467:
1468: DEBUG_PRINT_STR("<-ja returned")
1469:
1.332 misha 1470: return;
1471: }
1472:
1473: // it is then method-junction, do not explode it
1474: // just return it as we do for usual objects
1475: }
1476:
1477: write_pass_lang(input_value);
1478: }
1479:
1.298 paf 1480: StringOrValue Request::execute_method(VMethodFrame& amethod_frame, const Method& method) {
1.330 misha 1481: SAVE_CONTEXT
1.99 paf 1482:
1483: // initialize contexts
1.286 paf 1484: rcontext=wcontext=method_frame=&amethod_frame;
1.99 paf 1485:
1486: // execute!
1487: execute(*method.parser_code);
1488:
1489: // result
1.298 paf 1490: StringOrValue result=wcontext->result();
1.208 paf 1491:
1.330 misha 1492: RESTORE_CONTEXT
1.242 paf 1493:
1494: // return
1495: return result;
1.208 paf 1496: }
1497:
1.297 paf 1498: const String* Request::execute_method(Value& aself,
1.329 misha 1499: const Method& method, Value* optional_param,
1500: bool do_return_string) {
1.317 misha 1501:
1.330 misha 1502: SAVE_CONTEXT
1.208 paf 1503:
1.307 paf 1504: Junction local_junction(aself, &method);
1.321 misha 1505: VMethodFrame local_frame(local_junction, method_frame/*caller*/);
1.329 misha 1506: if(optional_param && local_frame.method_params_count()>0) {
1507: local_frame.store_params(&optional_param, 1);
1.330 misha 1508: } else {
1509: local_frame.empty_params();
1.242 paf 1510: }
1.285 paf 1511: local_frame.set_self(aself);
1.257 paf 1512: rcontext=wcontext=method_frame=&local_frame;
1.246 paf 1513:
1514: // prevent non-string writes for better error reporting
1.297 paf 1515: if(do_return_string)
1.246 paf 1516: wcontext->write(local_frame);
1.208 paf 1517:
1518: // execute!
1519: execute(*method.parser_code);
1520:
1521: // result
1.297 paf 1522: const String* result=0;
1523: if(do_return_string)
1524: result=&wcontext->result().as_string();
1.99 paf 1525:
1.330 misha 1526: RESTORE_CONTEXT
1.297 paf 1527:
1528: return result;
1.242 paf 1529: }
1530:
1.297 paf 1531: Request::Execute_nonvirtual_method_result
1532: Request::execute_nonvirtual_method(VStateless_class& aclass,
1.330 misha 1533: const String& method_name,
1534: VString* optional_param,
1535: bool do_return_string) {
1.297 paf 1536: Execute_nonvirtual_method_result result;
1537: result.method=aclass.get_method(method_name);
1538: if(result.method)
1.317 misha 1539: result.string=execute_method(aclass, *result.method, optional_param, do_return_string);
1.297 paf 1540: return result;
1.99 paf 1541: }
1542:
1.297 paf 1543: const String* Request::execute_virtual_method(Value& aself,
1.330 misha 1544: const String& method_name) {
1.297 paf 1545: if(Value* value=aself.get_element(method_name, aself, false))
1546: if(Junction* junction=value->get_junction())
1547: if(const Method *method=junction->method)
1548: return execute_method(aself, *method, 0/*no params*/, true);
1.188 parser 1549:
1.176 parser 1550: return 0;
1551: }