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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:
1.346 ! misha 8: static const char * const IDENT_EXECUTE_C="$Date: 2009-06-04 09:31:38 $";
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",
1.346 ! misha 49: "GET_ELEMENT__WRITE",
! 50: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
! 51: "VALUE__GET_ELEMENT",
! 52: "VALUE__GET_ELEMENT__WRITE",
! 53: #endif
1.335 misha 54: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
55: "GET_OBJECT_ELEMENT",
56: "GET_OBJECT_ELEMENT__WRITE",
57: #endif
58: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
59: "GET_OBJECT_VAR_ELEMENT",
60: "GET_OBJECT_VAR_ELEMENT__WRITE",
1.334 misha 61: #endif
1.345 misha 62: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
63: "WITH_SELF__VALUE__GET_ELEMENT",
64: "WITH_SELF__VALUE__GET_ELEMENT__WRITE",
65: #endif
1.232 paf 66: "OBJECT_POOL", "STRING_POOL",
67: "PREPARE_TO_CONSTRUCT_OBJECT", "PREPARE_TO_EXPRESSION",
68: "CALL", "CALL__WRITE",
1.49 paf 69:
1.337 misha 70: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
1.344 misha 71: "WITH_ROOT__VALUE__CONSTRUCT_EXPR",
72: "WITH_ROOT__VALUE__CONSTRUCT_VALUE",
73: "WITH_WRITE__VALUE__CONSTRUCT_EXPR",
74: "WITH_WRITE__VALUE__CONSTRUCT_VALUE",
1.345 misha 75: "WITH_SELF__VALUE__CONSTRUCT_EXPR",
76: "WITH_SELF__VALUE__CONSTRUCT_VALUE",
1.337 misha 77: #endif
78:
1.49 paf 79: // expression ops: unary
1.148 paf 80: "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS",
1.49 paf 81: // expression ops: binary
1.201 paf 82: "SUB", "ADD", "MUL", "DIV", "MOD", "INTDIV",
1.275 paf 83: "BIN_SL", "BIN_SR",
1.56 paf 84: "BIN_AND", "BIN_OR", "BIN_XOR",
85: "LOG_AND", "LOG_OR", "LOG_XOR",
1.49 paf 86: "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE",
1.103 paf 87: "STR_LT", "STR_GT", "STR_LE", "STR_GE", "STR_EQ", "STR_NE",
88: "IS"
1.1 paf 89: };
90:
1.342 misha 91: const char* debug_value_to_cstr(Value& value){
92: const String* string=value.get_string();
93:
94: if(string)
95: return string->cstr();
96: else
97: if(value.is_bool())
98: return value.as_bool()?"<true>":"<false>";
99: else
100: return "<value>";
101: }
102:
1.297 paf 103: void va_debug_printf(SAPI_Info& sapi_info, const char* fmt,va_list args) {
1.127 paf 104: char buf[MAX_STRING];
105: vsnprintf(buf, MAX_STRING, fmt, args);
1.297 paf 106: SAPI::log(sapi_info, "%s", buf);
1.107 paf 107: }
108:
1.297 paf 109: void debug_printf(SAPI_Info& sapi_info, const char* fmt, ...) {
1.334 misha 110: va_list args;
111: va_start(args, fmt);
112: va_debug_printf(sapi_info, fmt, args);
113: va_end(args);
1.105 paf 114: }
115:
1.297 paf 116: void debug_dump(SAPI_Info& sapi_info, int level, ArrayOperation& ops) {
117: Array_iterator<Operation> i(ops);
1.190 parser 118: while(i.has_next()) {
1.323 misha 119: OP::OPCODE opcode=i.next().code;
1.1 paf 120:
1.337 misha 121: #if defined(OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT) || defined(OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT)
1.334 misha 122: if(
1.335 misha 123: 1==0
124: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
125: || opcode==OP::OP_GET_OBJECT_ELEMENT
126: || opcode==OP::OP_GET_OBJECT_ELEMENT__WRITE
127: #endif
128: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
129: || opcode==OP::OP_GET_OBJECT_VAR_ELEMENT
130: || opcode==OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE
131: #endif
1.334 misha 132: ){
133: i.next(); // skip origin
134: Value& value1=*i.next().value;
135: i.next(); // skip origin
136: Value& value2=*i.next().value;
137: debug_printf(sapi_info,
138: "%*s%s"
139: " \"%s\" \"%s\"",
140: level*4, "", opcode_name[opcode],
1.342 misha 141: debug_value_to_cstr(value1), debug_value_to_cstr(value2));
1.334 misha 142: continue;
143: }
144: #endif
1.328 misha 145: if(
146: opcode==OP::OP_VALUE
147: || opcode==OP::OP_STRING__WRITE
148: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
149: || opcode==OP::OP_VALUE__GET_CLASS
150: #endif
151: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
152: || opcode==OP::OP_VALUE__GET_ELEMENT
153: || opcode==OP::OP_VALUE__GET_ELEMENT__WRITE
154: || opcode==OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR
155: #endif
1.345 misha 156: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
157: || opcode==OP::OP_WITH_SELF__VALUE__GET_ELEMENT
158: || opcode==OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE
159: #endif
1.342 misha 160: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
1.344 misha 161: || opcode==OP::OP_WITH_ROOT__VALUE__CONSTRUCT_EXPR
162: || opcode==OP::OP_WITH_ROOT__VALUE__CONSTRUCT_VALUE
163: || opcode==OP::OP_WITH_WRITE__VALUE__CONSTRUCT_EXPR
164: || opcode==OP::OP_WITH_WRITE__VALUE__CONSTRUCT_VALUE
1.345 misha 165: || opcode==OP::OP_WITH_SELF__VALUE__CONSTRUCT_EXPR
166: || opcode==OP::OP_WITH_SELF__VALUE__CONSTRUCT_VALUE
1.342 misha 167: #endif
1.328 misha 168: ) {
1.297 paf 169: Operation::Origin origin=i.next().origin;
170: Value& value=*i.next().value;
1.342 misha 171:
1.297 paf 172: debug_printf(sapi_info,
1.133 paf 173: "%*s%s"
174: " \"%s\" %s",
1.297 paf 175: level*4, "", opcode_name[opcode],
1.342 misha 176: debug_value_to_cstr(value), value.type());
1.133 paf 177: continue;
1.15 paf 178: }
1.297 paf 179: debug_printf(sapi_info, "%*s%s", level*4, "", opcode_name[opcode]);
1.1 paf 180:
1.297 paf 181: switch(opcode) {
1.323 misha 182: case OP::OP_CURLY_CODE__STORE_PARAM:
183: case OP::OP_EXPR_CODE__STORE_PARAM:
184: case OP::OP_CURLY_CODE__CONSTRUCT:
185: case OP::OP_NESTED_CODE:
1.346 ! misha 186: case OP::OP_OBJECT_POOL:
1.323 misha 187: case OP::OP_STRING_POOL:
188: case OP::OP_CALL:
189: case OP::OP_CALL__WRITE:
1.297 paf 190: if(ArrayOperation* local_ops=i.next().ops)
191: debug_dump(sapi_info, level+1, *local_ops);
1.1 paf 192: }
193: }
194: }
1.336 misha 195: #define DEBUG_PRINT_STR(str) debug_printf(sapi_info, str);
196: #define DEBUG_PRINT_STRING(value) debug_printf(sapi_info, " \"%s\" ", value.cstr());
1.342 misha 197: #define DEBUG_PRINT_VALUE_AND_TYPE(value) debug_printf(sapi_info, " \"%s\" %s", debug_value_to_cstr(value), value.type());
1.336 misha 198: #define DEBUG_PRINT_OPS(local_ops) \
199: debug_printf(sapi_info, \
200: " (%d)\n", local_ops?local_ops->count():0); \
201: if(local_ops) debug_dump(sapi_info, 1, *local_ops);
202:
203: #else
204: #define DEBUG_PRINT_STR(str)
205: #define DEBUG_PRINT_STRING(value)
1.342 misha 206: #define DEBUG_PRINT_VALUE_AND_TYPE(value)
1.336 misha 207: #define DEBUG_PRINT_OPS(local_ops)
1.157 parser 208: #endif
1.1 paf 209:
1.336 misha 210:
1.297 paf 211: // Request
212:
213: void Request::execute(ArrayOperation& ops) {
214: register Stack<StackItem>& stack=this->stack; // helps a lot on MSVC: 'esi'
1.159 parser 215:
1.304 paf 216: const String* debug_name=0; Operation::Origin debug_origin={0, 0, 0};
1.297 paf 217: try{
1.157 parser 218: #ifdef DEBUG_EXECUTE
1.297 paf 219: debug_printf(sapi_info, "source----------------------------\n");
220: debug_dump(sapi_info, 0, ops);
221: debug_printf(sapi_info, "execution-------------------------\n");
1.157 parser 222: #endif
1.297 paf 223: for(Array_iterator<Operation> i(ops); i.has_next(); ) {
1.322 misha 224: OP::OPCODE opcode=i.next().code;
1.293 paf 225:
1.157 parser 226: #ifdef DEBUG_EXECUTE
1.297 paf 227: debug_printf(sapi_info, "%d:%s", stack.top_index()+1, opcode_name[opcode]);
1.157 parser 228: #endif
1.11 paf 229:
1.297 paf 230: switch(opcode) {
1.51 paf 231: // param in next instruction
1.322 misha 232: case OP::OP_VALUE:
1.32 paf 233: {
1.297 paf 234: debug_origin=i.next().origin;
235: Value& value=*i.next().value;
1.342 misha 236:
237: DEBUG_PRINT_VALUE_AND_TYPE(value)
238:
1.297 paf 239: stack.push(value);
1.32 paf 240: break;
241: }
1.328 misha 242:
243: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
244: case OP::OP_VALUE__GET_CLASS:
245: {
246: // maybe they do ^class:method[] call, remember the fact
247: wcontext->set_somebody_entered_some_class();
248:
249: debug_origin=i.next().origin;
250: Value& value=*i.next().value;
251: const String& name=*value.get_string();
252:
1.336 misha 253: DEBUG_PRINT_STRING(name)
1.328 misha 254:
255: Value* class_value=classes().get(name);
256: if(!class_value)
257: throw Exception(PARSER_RUNTIME,
258: &name,
259: "class is undefined");
260:
261: stack.push(*class_value);
262: break;
263: }
264: #else
1.322 misha 265: case OP::OP_GET_CLASS:
1.38 paf 266: {
1.130 paf 267: // maybe they do ^class:method[] call, remember the fact
1.215 paf 268: wcontext->set_somebody_entered_some_class();
1.98 paf 269:
1.297 paf 270: const String& name=stack.pop().string();
271: Value* value=classes().get(name);
1.120 paf 272: if(!value)
1.316 misha 273: throw Exception(PARSER_RUNTIME,
1.66 paf 274: &name,
1.143 paf 275: "class is undefined");
1.66 paf 276:
1.297 paf 277: stack.push(*value);
1.38 paf 278: break;
279: }
1.328 misha 280: #endif
1.51 paf 281: // OP_WITH
1.322 misha 282: case OP::OP_WITH_ROOT:
1.187 parser 283: {
1.297 paf 284: stack.push(*method_frame);
1.187 parser 285: break;
286: }
1.336 misha 287: case OP::OP_WITH_SELF:
1.37 paf 288: {
1.297 paf 289: stack.push(get_self());
1.37 paf 290: break;
291: }
1.336 misha 292: case OP::OP_WITH_READ:
1.15 paf 293: {
1.297 paf 294: stack.push(*rcontext);
1.20 paf 295: break;
296: }
1.336 misha 297: case OP::OP_WITH_WRITE:
1.20 paf 298: {
1.287 paf 299: if(wcontext==method_frame)
1.316 misha 300: throw Exception(PARSER_RUNTIME,
1.287 paf 301: 0,
302: "$.name outside of $name[...]");
303:
1.297 paf 304: stack.push(*wcontext);
1.20 paf 305: break;
306: }
1.37 paf 307:
1.51 paf 308: // OTHER ACTIONS BUT WITHs
1.337 misha 309:
310: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
1.344 misha 311: case OP::OP_WITH_WRITE__VALUE__CONSTRUCT_EXPR:
312: case OP::OP_WITH_WRITE__VALUE__CONSTRUCT_VALUE:
1.338 misha 313: {
314: if(wcontext==method_frame)
315: throw Exception(PARSER_RUNTIME,
316: 0,
317: "$.name outside of $name[...]");
318: // don't stop here. continue in the next block
319: }
1.344 misha 320: case OP::OP_WITH_ROOT__VALUE__CONSTRUCT_EXPR:
321: case OP::OP_WITH_ROOT__VALUE__CONSTRUCT_VALUE:
1.345 misha 322: case OP::OP_WITH_SELF__VALUE__CONSTRUCT_EXPR:
323: case OP::OP_WITH_SELF__VALUE__CONSTRUCT_VALUE:
1.337 misha 324: {
1.345 misha 325: bool is_expr=(opcode==OP::OP_WITH_WRITE__VALUE__CONSTRUCT_EXPR
326: || opcode==OP::OP_WITH_ROOT__VALUE__CONSTRUCT_EXPR
327: || opcode==OP::OP_WITH_SELF__VALUE__CONSTRUCT_EXPR);
328:
1.344 misha 329: if(is_expr)
330: wcontext->set_in_expression(false);
1.337 misha 331:
332: debug_origin=i.next().origin;
333: const String& name=*i.next().value->get_string(); debug_name=&name;
334: DEBUG_PRINT_STRING(name)
335:
1.344 misha 336: Value& value=stack.pop().value();
1.342 misha 337:
1.345 misha 338: put_element(
339: (opcode==OP::OP_WITH_ROOT__VALUE__CONSTRUCT_EXPR || opcode==OP::OP_WITH_ROOT__VALUE__CONSTRUCT_VALUE)?*method_frame:
340: (opcode==OP::OP_WITH_SELF__VALUE__CONSTRUCT_EXPR || opcode==OP::OP_WITH_SELF__VALUE__CONSTRUCT_VALUE)?get_self():*wcontext,
341: name,
342: is_expr?&value.as_expr_result():/*value.is_void()?new VString():*/&value
343: );
344:
1.337 misha 345: break;
346: }
1.340 misha 347: #endif // OPTIMIZE_BYTECODE_CONSTRUCT
1.337 misha 348:
1.344 misha 349: case OP::OP_CONSTRUCT_VALUE:
1.337 misha 350: {
1.344 misha 351: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
352: const String& name=stack.pop().string(); debug_name=&name;
353: Value& ncontext=stack.pop().value();
354: Value& value=stack.pop().value();
355: #else
356: Value& value=stack.pop().value();
357: const String& name=stack.pop().string(); debug_name=&name;
358: Value& ncontext=stack.pop().value();
359: #endif
360: put_element(ncontext, name, &value);
1.337 misha 361:
362: break;
363: }
364:
1.322 misha 365: case OP::OP_CONSTRUCT_EXPR:
1.80 paf 366: {
1.219 paf 367: // see OP_PREPARE_TO_EXPRESSION
368: wcontext->set_in_expression(false);
369:
1.344 misha 370: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
371: const String& name=stack.pop().string(); debug_name=&name;
372: Value& ncontext=stack.pop().value();
373: Value& expr=stack.pop().value();
374: #else
1.308 paf 375: Value& expr=stack.pop().value();
1.297 paf 376: const String& name=stack.pop().string(); debug_name=&name;
377: Value& ncontext=stack.pop().value();
1.344 misha 378: #endif
1.308 paf 379: Value& value=expr.as_expr_result();
1.329 misha 380: put_element(ncontext, name, &value);
1.80 paf 381: break;
382: }
1.337 misha 383:
1.322 misha 384: case OP::OP_CURLY_CODE__CONSTRUCT:
1.182 parser 385: {
1.297 paf 386: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 387:
388: DEBUG_PRINT_OPS((&local_ops))
389:
1.326 misha 390: VJunction& value=*new VJunction(
1.297 paf 391: get_self(), 0,
1.257 paf 392: method_frame,
1.240 paf 393: rcontext,
394: wcontext,
1.312 paf 395: &local_ops);
1.238 paf 396:
1.326 misha 397: wcontext->attach_junction(&value);
398:
1.297 paf 399: const String& name=stack.pop().string(); debug_name=&name;
400: Value& ncontext=stack.pop().value();
1.312 paf 401: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, &value, false))
402: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT)
1.316 misha 403: throw Exception(PARSER_RUNTIME,
1.308 paf 404: 0,
405: "property value can not be code, use [] or () brackets");
406:
1.182 parser 407: break;
408: }
1.322 misha 409: case OP::OP_NESTED_CODE:
1.209 paf 410: {
1.297 paf 411: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 412:
413: DEBUG_PRINT_OPS((&local_ops))
414:
1.297 paf 415: stack.push(local_ops);
1.209 paf 416: break;
417: }
1.322 misha 418: case OP::OP_WRITE_VALUE:
1.13 paf 419: {
1.297 paf 420: Value& value=stack.pop().value();
421: write_assign_lang(value);
1.86 paf 422: break;
423: }
1.322 misha 424: case OP::OP_WRITE_EXPR_RESULT:
1.108 paf 425: {
1.297 paf 426: Value& value=stack.pop().value();
427: write_no_lang(value.as_expr_result());
1.230 paf 428:
429: // must be after write(result) and
1.219 paf 430: // see OP_PREPARE_TO_EXPRESSION
431: wcontext->set_in_expression(false);
1.108 paf 432: break;
433: }
1.322 misha 434: case OP::OP_STRING__WRITE:
1.86 paf 435: {
1.297 paf 436: i.next(); // ignore origin
437: Value* value=i.next().value;
1.336 misha 438:
439: const String& string_value=*value->get_string();
440:
441: DEBUG_PRINT_STRING(string_value)
442:
443: write_no_lang(string_value);
1.13 paf 444: break;
1.14 paf 445: }
1.328 misha 446:
447: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
448: case OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR:
449: {
450: debug_origin=i.next().origin;
451: const String& name=*i.next().value->get_string(); debug_name=&name;
452:
1.336 misha 453: DEBUG_PRINT_STRING(name)
454:
1.330 misha 455: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
456: if(!method->junction_template) method->junction_template=new VJunction(main_class, method);
457: stack.push(*method->junction_template);
458: break;
459: }
460: Value& value=get_element(*rcontext, name);
1.328 misha 461: stack.push(value);
462: break;
463: }
464: #else
1.322 misha 465: case OP::OP_GET_ELEMENT_OR_OPERATOR:
1.215 paf 466: {
1.297 paf 467: const String& name=stack.pop().string(); debug_name=&name;
468: Value& ncontext=stack.pop().value();
1.330 misha 469: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
470: if(!method->junction_template) method->junction_template=new VJunction(main_class, method);
471: stack.push(*method->junction_template);
472: break;
473: }
474: Value& value=get_element(ncontext, name);
1.297 paf 475: stack.push(value);
1.215 paf 476: break;
477: }
1.328 misha 478: #endif
479:
1.335 misha 480: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
481: case OP::OP_GET_OBJECT_ELEMENT:
482: case OP::OP_GET_OBJECT_ELEMENT__WRITE:
1.334 misha 483: {
484: debug_origin=i.next().origin;
485: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
1.336 misha 486:
487: DEBUG_PRINT_STRING(context_name)
488:
1.334 misha 489: Value& object=get_element(*rcontext, context_name);
490:
491: debug_origin=i.next().origin;
492: const String& field_name=*i.next().value->get_string(); debug_name=&field_name;
1.336 misha 493:
494: DEBUG_PRINT_STRING(field_name)
495:
1.334 misha 496: Value& value=get_element(object, field_name);
497:
1.335 misha 498: if(opcode==OP::OP_GET_OBJECT_ELEMENT){
499: stack.push(value);
500: } else {
501: write_assign_lang(value);
502: }
503: break;
504: }
505: #endif
506:
507: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
508: case OP::OP_GET_OBJECT_VAR_ELEMENT:
509: case OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE:
510: {
511: debug_origin=i.next().origin;
512: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
1.336 misha 513:
514: DEBUG_PRINT_STRING(context_name)
515:
1.335 misha 516: Value& object=get_element(*rcontext, context_name);
517:
518: debug_origin=i.next().origin;
519: const String& var_name=*i.next().value->get_string(); debug_name=&var_name;
1.336 misha 520:
521: DEBUG_PRINT_STRING(var_name)
522:
1.335 misha 523: const String* field=get_element(*rcontext, var_name).get_string();
524:
525: Value& value=get_element(object, *field);
526:
527: if(opcode==OP::OP_GET_OBJECT_VAR_ELEMENT){
1.334 misha 528: stack.push(value);
529: } else {
530: write_assign_lang(value);
531: }
532: break;
533: }
534: #endif
535:
1.322 misha 536: case OP::OP_GET_ELEMENT:
1.11 paf 537: {
1.297 paf 538: const String& name=stack.pop().string(); debug_name=&name;
539: Value& ncontext=stack.pop().value();
1.330 misha 540: Value& value=get_element(ncontext, name);
1.297 paf 541: stack.push(value);
1.17 paf 542: break;
543: }
544:
1.346 ! misha 545: case OP::OP_GET_ELEMENT__WRITE:
! 546: {
! 547: const String& name=stack.pop().string(); debug_name=&name;
! 548: Value& ncontext=stack.pop().value();
! 549: Value& value=get_element(ncontext, name);
! 550: write_assign_lang(value);
! 551: break;
! 552: }
! 553:
1.328 misha 554: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
555: case OP::OP_VALUE__GET_ELEMENT:
556: {
557: debug_origin=i.next().origin;
558: const String& name=*i.next().value->get_string(); debug_name=&name;
559:
1.336 misha 560: DEBUG_PRINT_STRING(name)
1.328 misha 561:
1.330 misha 562: Value& value=get_element(*rcontext, name);
1.328 misha 563: stack.push(value);
564: break;
565: }
566:
567: case OP::OP_VALUE__GET_ELEMENT__WRITE:
568: {
569: debug_origin=i.next().origin;
570: const String& name=*i.next().value->get_string(); debug_name=&name;
571:
1.336 misha 572: DEBUG_PRINT_STRING(name)
1.328 misha 573:
1.330 misha 574: Value& value=get_element(*rcontext, name);
1.328 misha 575: write_assign_lang(value);
576: break;
577: }
578: #endif
1.32 paf 579:
1.345 misha 580: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
581: case OP::OP_WITH_SELF__VALUE__GET_ELEMENT:
582: case OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE:
583: {
584: debug_origin=i.next().origin;
585: const String& name=*i.next().value->get_string(); debug_name=&name;
586:
587: DEBUG_PRINT_STRING(name)
588:
589: Value& value=get_element(get_self(), name);
590:
591: if(opcode==OP::OP_WITH_SELF__VALUE__GET_ELEMENT){
592: stack.push(value);
593: } else {
594: write_assign_lang(value);
595: }
596: break;
597: }
598: #endif
599:
1.322 misha 600: case OP::OP_OBJECT_POOL:
1.17 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: String::Language saved_lang=flang;
606: flang=String::L_PASS_APPENDED;
607: WWrapper local(0/*empty*/, wcontext);
1.226 paf 608: wcontext=&local;
609:
1.297 paf 610: execute(local_ops);
1.226 paf 611:
1.297 paf 612: stack.push(wcontext->result().as_value());
1.257 paf 613: flang=saved_lang;
614: wcontext=saved_wcontext;
1.13 paf 615: break;
1.15 paf 616: }
1.13 paf 617:
1.322 misha 618: case OP::OP_STRING_POOL:
1.49 paf 619: {
1.297 paf 620: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 621:
1.257 paf 622: WContext *saved_wcontext=wcontext;
1.297 paf 623: WWrapper local(0 /*empty*/, wcontext);
1.226 paf 624: wcontext=&local;
625:
1.297 paf 626: execute(local_ops);
1.226 paf 627:
1.297 paf 628: Value* value;
1.49 paf 629: // from "$a $b" part of expression taking only string value,
630: // ignoring any other content of wcontext
1.297 paf 631: if(const String* string=wcontext->get_string())
632: value=new VString(*string);
1.80 paf 633: else
1.324 misha 634: value=VVoid::get();
1.297 paf 635: stack.push(*value);
636:
1.257 paf 637: wcontext=saved_wcontext;
1.49 paf 638: break;
639: }
640:
1.51 paf 641: // CALL
1.322 misha 642: case OP::OP_CURLY_CODE__STORE_PARAM:
643: case OP::OP_EXPR_CODE__STORE_PARAM:
1.28 paf 644: {
1.237 paf 645: // code
1.297 paf 646: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 647:
648: DEBUG_PRINT_OPS((&local_ops))
649:
1.237 paf 650: // when they evaluate expression parameter,
651: // the object expression result
652: // does not need to be written into calling frame
653: // it must go into any expressions using that parameter
654: // hence, we zero junction.wcontext here, and later
655: // in .process we would test that field
656: // in decision "which wwrapper to use"
1.326 misha 657: VJunction& value=*new VJunction(
1.297 paf 658: get_self(), 0,
1.257 paf 659: method_frame,
1.237 paf 660: rcontext,
1.322 misha 661: opcode==OP::OP_EXPR_CODE__STORE_PARAM?0:wcontext,
1.312 paf 662: &local_ops);
1.343 misha 663: #ifndef USE_DESTRUCTORS
1.326 misha 664: if (opcode!=OP::OP_EXPR_CODE__STORE_PARAM)
1.343 misha 665: wcontext->attach_junction(&value);
1.326 misha 666: #endif
1.237 paf 667: // store param
1.329 misha 668: stack.push(value);
1.29 paf 669: break;
670: }
671:
1.322 misha 672: case OP::OP_PREPARE_TO_CONSTRUCT_OBJECT:
1.186 parser 673: {
1.200 paf 674: wcontext->set_constructing(true);
1.186 parser 675: break;
676: }
1.219 paf 677:
1.322 misha 678: case OP::OP_PREPARE_TO_EXPRESSION:
1.219 paf 679: {
680: wcontext->set_in_expression(true);
681: break;
682: }
683:
1.322 misha 684: case OP::OP_CALL:
1.29 paf 685: {
1.297 paf 686: ArrayOperation* local_ops=i.next().ops;
1.237 paf 687:
1.336 misha 688: DEBUG_PRINT_OPS(local_ops)
689: DEBUG_PRINT_STR("->\n")
690:
1.297 paf 691: Value& value=stack.pop().value();
1.237 paf 692:
1.297 paf 693: Junction* junction=value.get_junction();
694: if(!junction) {
695: if(value.is("void"))
1.316 misha 696: throw Exception(PARSER_RUNTIME,
1.297 paf 697: 0,
698: "undefined method");
699: else
1.316 misha 700: throw Exception(PARSER_RUNTIME,
1.297 paf 701: 0,
702: "is '%s', not a method or junction, can not call it",
703: value.type());
704: }
1.237 paf 705:
1.321 misha 706: VMethodFrame frame(*junction, method_frame);
1.330 misha 707:
1.321 misha 708: if(local_ops){ // store param code goes here
1.329 misha 709: size_t first = stack.top_index();
1.321 misha 710: execute(*local_ops);
1.329 misha 711: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
1.332 misha 712: op_call(frame);
1.329 misha 713: stack.set_top_index(first);
1.330 misha 714: } else {
715: frame.empty_params();
1.332 misha 716: op_call(frame);
1.321 misha 717: }
1.330 misha 718:
1.332 misha 719: stack.push(frame.result().as_value());
720:
1.336 misha 721: DEBUG_PRINT_STR("<-returned")
722:
1.332 misha 723: if(get_skip())
724: return;
725: if(get_interrupted()) {
726: set_interrupted(false);
727: throw Exception("parser.interrupted",
728: 0,
729: "execution stopped");
1.237 paf 730: }
1.332 misha 731: break;
732: }
1.220 paf 733:
1.332 misha 734: case OP::OP_CALL__WRITE:
735: {
736: ArrayOperation* local_ops=i.next().ops;
737:
1.336 misha 738: DEBUG_PRINT_OPS(local_ops)
739: DEBUG_PRINT_STR("->\n")
740:
1.332 misha 741: Value& value=stack.pop().value();
742:
743: Junction* junction=value.get_junction();
744: if(!junction) {
745: if(value.is("void"))
746: throw Exception(PARSER_RUNTIME,
747: 0,
748: "undefined method");
749: else
750: throw Exception(PARSER_RUNTIME,
751: 0,
752: "is '%s', not a method or junction, can not call it",
753: value.type());
754: }
755:
756: #ifdef OPTIMIZE_CALL
757: const Method& method=*junction->method;
758: if (!wcontext->get_constructing() && method.call_optimization==Method::CO_WITHOUT_FRAME){
759: if(local_ops){ // store param code goes here
760: size_t first = stack.top_index();
761: execute(*local_ops);
762:
763: MethodParams method_params;
764: method_params.store_params((Value**)stack.ptr(first), stack.top_index()-first);
765: method.check_actual_numbered_params(junction->self, &method_params);
766: method.native_code(*this, method_params); // execute it
767:
768: stack.set_top_index(first);
769: } else {
770: MethodParams method_params;
771: method.check_actual_numbered_params(junction->self, &method_params);
772: method.native_code(*this, method_params); // execute it
773: }
774: } else if (!wcontext->get_constructing() && method.call_optimization==Method::CO_WITHOUT_WCONTEXT){
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_write(frame);
782:
783: stack.set_top_index(first);
784: } else {
785: frame.empty_params();
786: op_call_write(frame);
787: }
788: } else
789: #endif // OPTIMIZE_CALL
790: {
791: VMethodFrame frame(*junction, method_frame);
792: if(local_ops){ // store param code goes here
793: size_t first = stack.top_index();
794: execute(*local_ops);
795:
796: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
797: op_call(frame);
798:
799: stack.set_top_index(first);
800: } else {
801: frame.empty_params();
802: op_call(frame);
803: }
1.346 ! misha 804: write_pass_lang(frame.result());
1.332 misha 805: }
1.336 misha 806:
807: DEBUG_PRINT_STR("<-returned")
1.327 misha 808:
809: if(get_skip())
810: return;
811: if(get_interrupted()) {
812: set_interrupted(false);
813: throw Exception("parser.interrupted",
814: 0,
815: "execution stopped");
816: }
1.49 paf 817: break;
818: }
819:
1.55 paf 820: // expression ops: unary
1.322 misha 821: case OP::OP_NEG:
1.55 paf 822: {
1.297 paf 823: Value& a=stack.pop().value();
824: Value& value=*new VDouble(-a.as_double());
825: stack.push(value);
1.55 paf 826: break;
827: }
1.322 misha 828: case OP::OP_INV:
1.55 paf 829: {
1.297 paf 830: Value& a=stack.pop().value();
831: Value& value=*new VDouble(~a.as_int());
832: stack.push(value);
1.55 paf 833: break;
834: }
1.322 misha 835: case OP::OP_NOT:
1.55 paf 836: {
1.297 paf 837: Value& a=stack.pop().value();
1.327 misha 838: Value& value=VBool::get(!a.as_bool());
1.297 paf 839: stack.push(value);
1.55 paf 840: break;
841: }
1.322 misha 842: case OP::OP_DEF:
1.62 paf 843: {
1.297 paf 844: Value& a=stack.pop().value();
1.327 misha 845: Value& value=VBool::get(a.is_defined());
1.297 paf 846: stack.push(value);
1.62 paf 847: break;
848: }
1.322 misha 849: case OP::OP_IN:
1.62 paf 850: {
1.297 paf 851: Value& a=stack.pop().value();
852: const String& path=a.as_string();
1.327 misha 853: Value& value=VBool::get(request_info.uri && *request_info.uri && path.this_starts(request_info.uri));
1.297 paf 854: stack.push(value);
1.62 paf 855: break;
856: }
1.322 misha 857: case OP::OP_FEXISTS:
1.62 paf 858: {
1.297 paf 859: Value& a=stack.pop().value();
1.327 misha 860: Value& value=VBool::get(file_exist(absolute(a.as_string())));
1.297 paf 861: stack.push(value);
1.148 paf 862: break;
863: }
1.322 misha 864: case OP::OP_DEXISTS:
1.148 paf 865: {
1.297 paf 866: Value& a=stack.pop().value();
1.327 misha 867: Value& value=VBool::get(dir_exists(absolute(a.as_string())));
1.297 paf 868: stack.push(value);
1.62 paf 869: break;
870: }
1.55 paf 871:
872: // expression ops: binary
1.322 misha 873: case OP::OP_SUB:
1.53 paf 874: {
1.297 paf 875: Value& b=stack.pop().value(); Value& a=stack.pop().value();
876: Value& value=*new VDouble(a.as_double() - b.as_double());
877: stack.push(value);
1.53 paf 878: break;
879: }
1.322 misha 880: case OP::OP_ADD:
1.53 paf 881: {
1.297 paf 882: Value& b=stack.pop().value(); Value& a=stack.pop().value();
883: Value& value=*new VDouble(a.as_double() + b.as_double());
884: stack.push(value);
1.53 paf 885: break;
886: }
1.322 misha 887: case OP::OP_MUL:
1.49 paf 888: {
1.297 paf 889: Value& b=stack.pop().value(); Value& a=stack.pop().value();
890: Value& value=*new VDouble(a.as_double() * b.as_double());
891: stack.push(value);
1.53 paf 892: break;
893: }
1.322 misha 894: case OP::OP_DIV:
1.53 paf 895: {
1.297 paf 896: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 897:
1.297 paf 898: double a_double=a.as_double();
899: double b_double=b.as_double();
1.170 parser 900:
1.171 parser 901: if(b_double == 0) {
1.297 paf 902: //const String* problem_source=b.as_string();
1.223 paf 903: throw Exception("number.zerodivision",
1.297 paf 904: 0, //problem_source,
1.170 parser 905: "Division by zero");
1.171 parser 906: }
1.170 parser 907:
1.297 paf 908: Value& value=*new VDouble(a_double / b_double);
909: stack.push(value);
1.54 paf 910: break;
911: }
1.322 misha 912: case OP::OP_MOD:
1.55 paf 913: {
1.297 paf 914: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 915:
1.297 paf 916: double a_double=a.as_double();
917: double b_double=b.as_double();
1.170 parser 918:
1.173 parser 919: if(b_double == 0) {
1.297 paf 920: //const String* problem_source=b.as_string();
1.223 paf 921: throw Exception("number.zerodivision",
1.297 paf 922: 0, //problem_source,
1.170 parser 923: "Modulus by zero");
1.171 parser 924: }
1.170 parser 925:
1.297 paf 926: Value& value=*new VDouble(fmod(a_double, b_double));
927: stack.push(value);
1.201 paf 928: break;
929: }
1.322 misha 930: case OP::OP_INTDIV:
1.201 paf 931: {
1.297 paf 932: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.201 paf 933:
1.297 paf 934: int a_int=a.as_int();
935: int b_int=b.as_int();
1.201 paf 936:
937: if(b_int == 0) {
1.297 paf 938: //const String* problem_source=b.as_string();
1.223 paf 939: throw Exception("number.zerodivision",
1.297 paf 940: 0, //problem_source,
1.201 paf 941: "Division by zero");
942: }
943:
1.297 paf 944: Value& value=*new VInt(a_int / b_int);
945: stack.push(value);
1.55 paf 946: break;
947: }
1.322 misha 948: case OP::OP_BIN_SL:
1.274 paf 949: {
1.297 paf 950: Value& b=stack.pop().value(); Value& a=stack.pop().value();
951: Value& value=*new VInt(
952: a.as_int() <<
953: b.as_int());
954: stack.push(value);
1.274 paf 955: break;
956: }
1.322 misha 957: case OP::OP_BIN_SR:
1.274 paf 958: {
1.297 paf 959: Value& b=stack.pop().value(); Value& a=stack.pop().value();
960: Value& value=*new VInt(
961: a.as_int() >>
962: b.as_int());
963: stack.push(value);
1.274 paf 964: break;
965: }
1.322 misha 966: case OP::OP_BIN_AND:
1.54 paf 967: {
1.297 paf 968: Value& b=stack.pop().value(); Value& a=stack.pop().value();
969: Value& value=*new VInt(
970: a.as_int() &
971: b.as_int());
972: stack.push(value);
1.54 paf 973: break;
974: }
1.322 misha 975: case OP::OP_BIN_OR:
1.54 paf 976: {
1.297 paf 977: Value& b=stack.pop().value(); Value& a=stack.pop().value();
978: Value& value=*new VInt(
979: a.as_int() |
980: b.as_int());
981: stack.push(value);
1.55 paf 982: break;
983: }
1.322 misha 984: case OP::OP_BIN_XOR:
1.56 paf 985: {
1.297 paf 986: Value& b=stack.pop().value(); Value& a=stack.pop().value();
987: Value& value=*new VInt(
988: a.as_int() ^
989: b.as_int());
990: stack.push(value);
1.56 paf 991: break;
992: }
1.322 misha 993: case OP::OP_LOG_AND:
1.55 paf 994: {
1.297 paf 995: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 996: bool result;
1.297 paf 997: if(a.as_bool()) {
998: execute(local_ops);
999: Value& b=stack.pop().value();
1000: result=b.as_bool();
1.209 paf 1001: } else
1.263 paf 1002: result=false;
1.327 misha 1003: Value& value=VBool::get(result);
1.297 paf 1004: stack.push(value);
1.55 paf 1005: break;
1006: }
1.322 misha 1007: case OP::OP_LOG_OR:
1.55 paf 1008: {
1.297 paf 1009: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 1010: bool result;
1.297 paf 1011: if(a.as_bool())
1.263 paf 1012: result=true;
1.209 paf 1013: else {
1.297 paf 1014: execute(local_ops);
1015: Value& b=stack.pop().value();
1016: result=b.as_bool();
1.209 paf 1017: }
1.327 misha 1018: Value& value=VBool::get(result);
1.297 paf 1019: stack.push(value);
1.56 paf 1020: break;
1021: }
1.322 misha 1022: case OP::OP_LOG_XOR:
1.56 paf 1023: {
1.297 paf 1024: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1025: Value& value=VBool::get(a.as_bool() ^ b.as_bool());
1.297 paf 1026: stack.push(value);
1.55 paf 1027: break;
1028: }
1.322 misha 1029: case OP::OP_NUM_LT:
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_GT:
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_LE:
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_GE:
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);
1.55 paf 1059: break;
1060: }
1.322 misha 1061: case OP::OP_NUM_EQ:
1.55 paf 1062: {
1.297 paf 1063: volatile double b_double=stack.pop().value().as_double();
1064: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1065: Value& value=VBool::get(a_double==b_double);
1.297 paf 1066: stack.push(value);
1.55 paf 1067: break;
1068: }
1.322 misha 1069: case OP::OP_NUM_NE:
1.55 paf 1070: {
1.297 paf 1071: volatile double b_double=stack.pop().value().as_double();
1072: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1073: Value& value=VBool::get(a_double!=b_double);
1.297 paf 1074: stack.push(value);
1.54 paf 1075: break;
1076: }
1.322 misha 1077: case OP::OP_STR_LT:
1.58 paf 1078: {
1.297 paf 1079: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1080: Value& value=VBool::get(a.as_string() < b.as_string());
1.297 paf 1081: stack.push(value);
1.58 paf 1082: break;
1083: }
1.322 misha 1084: case OP::OP_STR_GT:
1.58 paf 1085: {
1.297 paf 1086: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1087: Value& value=VBool::get(a.as_string() > b.as_string());
1.297 paf 1088: stack.push(value);
1.58 paf 1089: break;
1090: }
1.322 misha 1091: case OP::OP_STR_LE:
1.58 paf 1092: {
1.297 paf 1093: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1094: Value& value=VBool::get(a.as_string() <= b.as_string());
1.297 paf 1095: stack.push(value);
1.58 paf 1096: break;
1097: }
1.322 misha 1098: case OP::OP_STR_GE:
1.54 paf 1099: {
1.297 paf 1100: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1101: Value& value=VBool::get(a.as_string() >= b.as_string());
1.297 paf 1102: stack.push(value);
1.58 paf 1103: break;
1104: }
1.322 misha 1105: case OP::OP_STR_EQ:
1.58 paf 1106: {
1.297 paf 1107: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1108: Value& value=VBool::get(a.as_string() == b.as_string());
1.297 paf 1109: stack.push(value);
1.58 paf 1110: break;
1111: }
1.322 misha 1112: case OP::OP_STR_NE:
1.58 paf 1113: {
1.297 paf 1114: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1115: Value& value=VBool::get(a.as_string() != b.as_string());
1.297 paf 1116: stack.push(value);
1.103 paf 1117: break;
1118: }
1.322 misha 1119: case OP::OP_IS:
1.103 paf 1120: {
1.297 paf 1121: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1122: Value& value=VBool::get(a.is(b.as_string().cstr()));
1.297 paf 1123: stack.push(value);
1.28 paf 1124: break;
1125: }
1126:
1.11 paf 1127: default:
1.223 paf 1128: throw Exception(0,
1.67 paf 1129: 0,
1.297 paf 1130: "invalid opcode %d", opcode);
1.11 paf 1131: }
1132: }
1.306 paf 1133: } catch(const Exception&) {
1.297 paf 1134: // record it to stack trace
1.301 paf 1135: if(debug_name)
1136: exception_trace.push(Trace(debug_name, debug_origin));
1.297 paf 1137: rethrow;
1138: }
1.1 paf 1139: }
1.17 paf 1140:
1.330 misha 1141: #define SAVE_CONTEXT \
1142: VMethodFrame *saved_method_frame=method_frame; \
1143: Value* saved_rcontext=rcontext; \
1144: WContext *saved_wcontext=wcontext;
1145:
1146: #define RESTORE_CONTEXT \
1147: wcontext=saved_wcontext; \
1148: rcontext=saved_rcontext; \
1149: method_frame=saved_method_frame;
1150:
1.332 misha 1151: void Request::op_call(VMethodFrame& frame){
1152: const Junction &junction=frame.junction;
1153: VStateless_class& called_class=*junction.self.get_class();
1.319 misha 1154: Value* new_self;
1.332 misha 1155:
1.319 misha 1156: if(wcontext->get_constructing()) {
1157: wcontext->set_constructing(false);
1.332 misha 1158: if(junction.method->call_type!=Method::CT_STATIC) {
1.319 misha 1159: // this is a constructor call
1160: HashStringValue& new_object_fields=*new HashStringValue();
1.332 misha 1161: if(new_self=called_class.create_new_value(fpool, new_object_fields)) {
1.319 misha 1162: // some stateless_class creatable derivates
1163: } else
1164: throw Exception(PARSER_RUNTIME,
1165: 0, //&frame.name(),
1166: "is not a constructor, system class '%s' can be constructed only implicitly",
1167: called_class.name().cstr());
1168:
1169: frame.write(*new_self,
1170: String::L_CLEAN // not used, always an object, not string
1171: );
1172: } else
1173: throw Exception(PARSER_RUNTIME,
1174: 0, //&frame.name(),
1175: "method is static and can not be used as constructor");
1.332 misha 1176: } else
1177: new_self=&junction.self;
1.319 misha 1178:
1179: frame.set_self(*new_self);
1180:
1181: // see OP_PREPARE_TO_EXPRESSION
1182: frame.set_in_expression(wcontext->get_in_expression());
1183:
1.332 misha 1184: SAVE_CONTEXT
1185:
1.319 misha 1186: rcontext=wcontext=&frame;
1.332 misha 1187: method_frame=&frame;
1.319 misha 1188:
1.332 misha 1189: const Method& method=*junction.method;
1190: Method::Call_type call_type=&called_class==new_self ? Method::CT_STATIC : Method::CT_DYNAMIC;
1.319 misha 1191:
1.332 misha 1192: if(method.call_type==Method::CT_ANY || method.call_type==call_type) { // allowed call type?
1193: if(method.native_code) { // native code?
1194: method.check_actual_numbered_params(junction.self, frame.numbered_params());
1195: method.native_code(*this, *frame.numbered_params()); // execute it
1196: } else // parser code, execute it
1197: recoursion_checked_execute(*method.parser_code);
1198: } else
1199: throw Exception(PARSER_RUNTIME,
1200: 0,
1201: "is not allowed to be called %s",
1202: call_type==Method::CT_STATIC?"statically":"dynamically");
1.334 misha 1203:
1.330 misha 1204: RESTORE_CONTEXT
1.332 misha 1205: //return &frame;
1206: }
1207:
1208: void Request::op_call_write(VMethodFrame& frame){
1209: const Junction &junction=frame.junction;
1210:
1211: frame.set_self(junction.self);
1212:
1213: VMethodFrame *saved_method_frame=method_frame;
1214: Value* saved_rcontext=rcontext;
1.319 misha 1215:
1.332 misha 1216: rcontext=&frame;
1217: method_frame=&frame;
1218:
1219: const Method& method=*junction.method;
1220: Method::Call_type call_type=junction.self.get_class()==&junction.self ? Method::CT_STATIC : Method::CT_DYNAMIC;
1221:
1.333 misha 1222: if(method.call_type==Method::CT_ANY || method.call_type==call_type) { // allowed call type?
1223: if(method.native_code) { // native code?
1224: method.check_actual_numbered_params(junction.self, frame.numbered_params());
1225: method.native_code(*this, *frame.numbered_params()); // execute it
1226: } else // parser code, execute it
1227: recoursion_checked_execute(*method.parser_code);
1.332 misha 1228: } else
1229: throw Exception(PARSER_RUNTIME,
1230: 0,
1231: "is not allowed to be called %s",
1232: call_type==Method::CT_STATIC?"statically":"dynamically");
1233:
1234: rcontext=saved_rcontext;
1235: method_frame=saved_method_frame;
1.319 misha 1236: }
1237:
1.292 paf 1238: /**
1239: @bug ^superbase:method would dynamically call ^base:method if there is any
1240: */
1.330 misha 1241: Value& Request::get_element(Value& ncontext, const String& name) {
1242: if(!wcontext->get_constructing() // not constructing
1243: && wcontext->get_somebody_entered_some_class() ) // ^class:method
1.297 paf 1244: if(VStateless_class *called_class=ncontext.get_class())
1.249 paf 1245: if(VStateless_class *read_class=rcontext->get_class())
1246: if(read_class->derived_from(*called_class)) // current derived from called
1.297 paf 1247: if(Value* base=get_self().base()) { // doing DYNAMIC call
1.330 misha 1248: Temp_derived temp_derived(*base, 0); // temporarily prevent go-back-down virtual calls
1249: Value *value=base->get_element(name, *base, true); // virtual-up lookup starting from parent
1250: return *(value ? &process_to_value(*value) : VVoid::get());
1.249 paf 1251: }
1.330 misha 1252:
1253: Value* value=ncontext.get_element(name, ncontext, true);
1.291 paf 1254:
1255: if(value && wcontext->get_constructing())
1.330 misha 1256: if(Junction* junction=value->get_junction())
1.297 paf 1257: if(junction->self.get_class()!=&ncontext)
1.316 misha 1258: throw Exception(PARSER_RUNTIME,
1.291 paf 1259: &name,
1.297 paf 1260: "constructor must be declared in class '%s'",
1261: ncontext.get_class()->name_cstr());
1.63 paf 1262:
1.330 misha 1263: return *(value ? &process_to_value(*value) : VVoid::get());
1.309 paf 1264: }
1265:
1.329 misha 1266: void Request::put_element(Value& ncontext, const String& name, Value* value) {
1.309 paf 1267: // put_element can return property-setting-junction
1.329 misha 1268: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, value, false))
1.312 paf 1269: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT) {
1.309 paf 1270: // process it
1.329 misha 1271: VMethodFrame frame(vjunction->junction(), method_frame/*caller*/);
1272: int param_count=frame.method_params_count();
1273:
1.309 paf 1274: if(param_count!=1)
1.316 misha 1275: throw Exception(PARSER_RUNTIME,
1.309 paf 1276: 0,
1277: "setter method must have ONE parameter (has %d parameters)", param_count);
1278:
1.329 misha 1279: frame.store_params(&value, 1);
1.309 paf 1280: frame.set_self(frame.junction.self);
1281:
1.330 misha 1282: SAVE_CONTEXT
1.309 paf 1283:
1284: rcontext=wcontext=&frame;
1285: method_frame=&frame;
1286:
1.311 paf 1287: // prevent non-string writes for better error reporting [setters are not expected to return anything]
1.309 paf 1288: wcontext->write(*method_frame);
1289:
1290: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1291: // we don't need it StringOrValue result=wcontext->result();
1292:
1.330 misha 1293: RESTORE_CONTEXT
1.309 paf 1294: }
1.34 paf 1295: }
1.70 paf 1296:
1.162 parser 1297: /** @param intercept_string
1.116 paf 1298: - true:
1299: they want result=string value,
1300: possible object result goes to wcontext
1301: - false:
1302: they want any result[string|object]
1303: nothing goes to wcontext.
1.125 paf 1304: used in @c (expression) params evaluation
1.224 paf 1305:
1.334 misha 1306: using the fact it's either string_ or value_ result requested to speed up checkes
1.116 paf 1307: */
1.229 paf 1308: StringOrValue Request::process(Value& input_value, bool intercept_string) {
1.297 paf 1309: Junction* junction=input_value.get_junction();
1.307 paf 1310: if(junction) {
1311: if(junction->is_getter) { // is it a getter-junction?
1.329 misha 1312: VMethodFrame frame(*junction, method_frame/*caller*/);
1313: int param_count=frame.method_params_count();
1314:
1.331 misha 1315: if(param_count){
1316: if(junction->auto_name){ // default getter
1317: if(param_count==1){
1318: Value *param=new VString(*junction->auto_name);
1319: frame.store_params(¶m, 1);
1320: } else
1321: throw Exception(PARSER_RUNTIME,
1322: 0,
1323: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1324: } else
1.320 misha 1325: throw Exception(PARSER_RUNTIME,
1326: 0,
1.331 misha 1327: "getter method must have no parameters (has %d parameters)", param_count);
1328: } // no need for else frame.empty_params()
1.320 misha 1329:
1.307 paf 1330: frame.set_self(frame.junction.self);
1331:
1.330 misha 1332: SAVE_CONTEXT
1.307 paf 1333:
1334: rcontext=wcontext=&frame;
1335: method_frame=&frame;
1336:
1337: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1338: StringOrValue result=wcontext->result();
1339:
1.330 misha 1340: RESTORE_CONTEXT
1.307 paf 1341:
1342: return result;
1343: }
1344:
1345: if(junction->code) { // is it a code-junction?
1346: // process it
1347: StringOrValue result;
1.336 misha 1348:
1349: DEBUG_PRINT_STR("ja->\n")
1.238 paf 1350:
1.307 paf 1351: if(!junction->method_frame)
1.316 misha 1352: throw Exception(PARSER_RUNTIME,
1.240 paf 1353: 0,
1354: "junction used outside of context");
1355:
1.330 misha 1356: SAVE_CONTEXT
1.307 paf 1357:
1358: method_frame=junction->method_frame;
1359: rcontext=junction->rcontext;
1360:
1361: // for expression method params
1362: // wcontext is set 0
1363: // using the fact in decision "which wwrapper to use"
1364: bool using_code_frame=intercept_string && junction->wcontext;
1365: if(using_code_frame) {
1.318 misha 1366: // almost plain wwrapper about junction wcontext
1367:
1368: VCodeFrame local(*junction->wcontext);
1.307 paf 1369: wcontext=&local;
1370:
1371: // execute it
1372: recoursion_checked_execute(*junction->code);
1373:
1374: // CodeFrame soul:
1.318 misha 1375: result=wcontext->result();
1.307 paf 1376: } else {
1377: // plain wwrapper
1378: WWrapper local(0/*empty*/, wcontext);
1379: wcontext=&local;
1380:
1381: // execute it
1382: recoursion_checked_execute(*junction->code);
1383:
1384: result=wcontext->result();
1385: }
1386:
1.330 misha 1387: RESTORE_CONTEXT
1.207 paf 1388:
1.336 misha 1389: DEBUG_PRINT_STR("<-ja returned")
1390:
1.307 paf 1391: return result;
1392: }
1393:
1394: // it is then method-junction, do not explode it
1395: // just return it as we do for usual objects
1396: }
1397:
1398: return input_value;
1.85 paf 1399: }
1400:
1.332 misha 1401: void Request::process_write(Value& input_value) {
1402: Junction* junction=input_value.get_junction();
1403: if(junction) {
1404: if(junction->is_getter) { // is it a getter-junction?
1405: VMethodFrame frame(*junction, method_frame/*caller*/);
1406: int param_count=frame.method_params_count();
1407:
1408: if(param_count){
1409: if(junction->auto_name){ // default getter
1410: if(param_count==1){
1411: Value *param=new VString(*junction->auto_name);
1412: frame.store_params(¶m, 1);
1413: } else
1414: throw Exception(PARSER_RUNTIME,
1415: 0,
1416: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1417: } else
1418: throw Exception(PARSER_RUNTIME,
1419: 0,
1420: "getter method must have no parameters (has %d parameters)", param_count);
1421: } // no need for else frame.empty_params()
1422:
1423: frame.set_self(frame.junction.self);
1424:
1425: SAVE_CONTEXT
1426:
1427: rcontext=wcontext=&frame;
1428: method_frame=&frame;
1429:
1430: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1431:
1432: RESTORE_CONTEXT
1433:
1434: write_pass_lang(frame.result());
1435: return;
1436: }
1437:
1438: if(junction->code) { // is it a code-junction?
1439: // process it
1.336 misha 1440:
1441: DEBUG_PRINT_STR("ja->\n")
1442:
1.332 misha 1443: if(!junction->method_frame)
1444: throw Exception(PARSER_RUNTIME,
1445: 0,
1446: "junction used outside of context");
1447:
1448: SAVE_CONTEXT
1449:
1450: method_frame=junction->method_frame;
1451: rcontext=junction->rcontext;
1452:
1453: // for expression method params
1454: // wcontext is set 0
1455: // using the fact in decision "which wwrapper to use"
1456: #ifdef OPTIMIZE_CALL
1457: if(wcontext==junction->wcontext){
1458: // no wrappers for wcontext
1459: recoursion_checked_execute(*junction->code);
1460: RESTORE_CONTEXT
1461:
1462: } else
1463: #endif
1464: if(junction->wcontext) {
1465: // almost plain wwrapper about junction wcontext
1466: VCodeFrame local(*junction->wcontext);
1467: wcontext=&local;
1468:
1469: // execute it
1470: recoursion_checked_execute(*junction->code);
1471: RESTORE_CONTEXT
1472: write_pass_lang(local.result());
1473: } else {
1474: // plain wwrapper
1475: WWrapper local(0/*empty*/, wcontext);
1476: wcontext=&local;
1477:
1478: // execute it
1479: recoursion_checked_execute(*junction->code);
1480: RESTORE_CONTEXT
1481: write_pass_lang(local.result());
1482: }
1.336 misha 1483:
1484: DEBUG_PRINT_STR("<-ja returned")
1485:
1.332 misha 1486: return;
1487: }
1488:
1489: // it is then method-junction, do not explode it
1490: // just return it as we do for usual objects
1491: }
1492:
1493: write_pass_lang(input_value);
1494: }
1495:
1.298 paf 1496: StringOrValue Request::execute_method(VMethodFrame& amethod_frame, const Method& method) {
1.330 misha 1497: SAVE_CONTEXT
1.99 paf 1498:
1499: // initialize contexts
1.286 paf 1500: rcontext=wcontext=method_frame=&amethod_frame;
1.99 paf 1501:
1502: // execute!
1503: execute(*method.parser_code);
1504:
1505: // result
1.298 paf 1506: StringOrValue result=wcontext->result();
1.208 paf 1507:
1.330 misha 1508: RESTORE_CONTEXT
1.242 paf 1509:
1510: // return
1511: return result;
1.208 paf 1512: }
1513:
1.297 paf 1514: const String* Request::execute_method(Value& aself,
1.329 misha 1515: const Method& method, Value* optional_param,
1516: bool do_return_string) {
1.317 misha 1517:
1.330 misha 1518: SAVE_CONTEXT
1.208 paf 1519:
1.307 paf 1520: Junction local_junction(aself, &method);
1.321 misha 1521: VMethodFrame local_frame(local_junction, method_frame/*caller*/);
1.329 misha 1522: if(optional_param && local_frame.method_params_count()>0) {
1523: local_frame.store_params(&optional_param, 1);
1.330 misha 1524: } else {
1525: local_frame.empty_params();
1.242 paf 1526: }
1.285 paf 1527: local_frame.set_self(aself);
1.257 paf 1528: rcontext=wcontext=method_frame=&local_frame;
1.246 paf 1529:
1530: // prevent non-string writes for better error reporting
1.297 paf 1531: if(do_return_string)
1.246 paf 1532: wcontext->write(local_frame);
1.208 paf 1533:
1534: // execute!
1535: execute(*method.parser_code);
1536:
1537: // result
1.297 paf 1538: const String* result=0;
1539: if(do_return_string)
1540: result=&wcontext->result().as_string();
1.99 paf 1541:
1.330 misha 1542: RESTORE_CONTEXT
1.297 paf 1543:
1544: return result;
1.242 paf 1545: }
1546:
1.297 paf 1547: Request::Execute_nonvirtual_method_result
1548: Request::execute_nonvirtual_method(VStateless_class& aclass,
1.330 misha 1549: const String& method_name,
1550: VString* optional_param,
1551: bool do_return_string) {
1.297 paf 1552: Execute_nonvirtual_method_result result;
1553: result.method=aclass.get_method(method_name);
1554: if(result.method)
1.317 misha 1555: result.string=execute_method(aclass, *result.method, optional_param, do_return_string);
1.297 paf 1556: return result;
1.99 paf 1557: }
1558:
1.297 paf 1559: const String* Request::execute_virtual_method(Value& aself,
1.330 misha 1560: const String& method_name) {
1.297 paf 1561: if(Value* value=aself.get_element(method_name, aself, false))
1562: if(Junction* junction=value->get_junction())
1563: if(const Method *method=junction->method)
1564: return execute_method(aself, *method, 0/*no params*/, true);
1.188 parser 1565:
1.176 parser 1566: return 0;
1567: }