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Up to [parser3project] / parser3 / src / main|
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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:
1.342 ! misha 8: static const char * const IDENT_EXECUTE_C="$Date: 2009-05-23 07:02:38 $";
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",
1.335 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
1.338 misha 69: "ROOT_CONSTRUCT_EXPR",
70: "ROOT_ELEMENT_CONSTRUCT_EXPR",
1.342 ! misha 71: "ROOT_OBJECT_ELEMENT_CONSTRUCT_EXPR",
! 72: "ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR",
1.338 misha 73:
74: "ROOT_CONSTRUCT_VALUE",
75: "ROOT_ELEMENT_CONSTRUCT_VALUE",
1.342 ! misha 76: "ROOT_OBJECT_ELEMENT_CONSTRUCT_VALUE",
! 77: "ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_VALUE",
1.338 misha 78:
79: "WRITE_CONSTRUCT_EXPR",
80: "WRITE_ELEMENT_CONSTRUCT_EXPR",
1.342 ! misha 81: "WRITE_OBJECT_ELEMENT_CONSTRUCT_EXPR",
! 82: "WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR",
1.338 misha 83:
84: "WRITE_CONSTRUCT_VALUE",
85: "WRITE_ELEMENT_CONSTRUCT_VALUE",
1.342 ! misha 86: "WRITE_OBJECT_ELEMENT_CONSTRUCT_VALUE",
! 87: "WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_VALUE",
1.340 misha 88: #endif
89:
90: #ifdef OPTIMIZE_BYTECODE_CALL_CONSTRUCT
91: "ROOT_CALL_CONSTRUCT_EXPR",
92: //"ROOT_CALL_OBJECT_ELEMENT_CONSTRUCT_EXPR",
93:
94: "ROOT_CALL_CONSTRUCT_VALUE",
95: //"ROOT_CALL_OBJECT_ELEMENT_CONSTRUCT_VALUE",
96:
97: "WRITE_CALL_CONSTRUCT_EXPR",
98: //"WRITE_CALL_OBJECT_ELEMENT_CONSTRUCT_EXPR",
99:
1.338 misha 100: "WRITE_CALL_CONSTRUCT_VALUE",
1.340 misha 101: //"WRITE_CALL_OBJECT_ELEMENT_CONSTRUCT_VALUE",
1.337 misha 102: #endif
103:
1.49 paf 104: // expression ops: unary
1.148 paf 105: "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS",
1.49 paf 106: // expression ops: binary
1.201 paf 107: "SUB", "ADD", "MUL", "DIV", "MOD", "INTDIV",
1.275 paf 108: "BIN_SL", "BIN_SR",
1.56 paf 109: "BIN_AND", "BIN_OR", "BIN_XOR",
110: "LOG_AND", "LOG_OR", "LOG_XOR",
1.49 paf 111: "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE",
1.103 paf 112: "STR_LT", "STR_GT", "STR_LE", "STR_GE", "STR_EQ", "STR_NE",
113: "IS"
1.1 paf 114: };
115:
1.342 ! misha 116: const char* debug_value_to_cstr(Value& value){
! 117: const String* string=value.get_string();
! 118:
! 119: if(string)
! 120: return string->cstr();
! 121: else
! 122: if(value.is_bool())
! 123: return value.as_bool()?"<true>":"<false>";
! 124: else
! 125: return "<value>";
! 126: }
! 127:
1.297 paf 128: void va_debug_printf(SAPI_Info& sapi_info, const char* fmt,va_list args) {
1.127 paf 129: char buf[MAX_STRING];
130: vsnprintf(buf, MAX_STRING, fmt, args);
1.297 paf 131: SAPI::log(sapi_info, "%s", buf);
1.107 paf 132: }
133:
1.297 paf 134: void debug_printf(SAPI_Info& sapi_info, const char* fmt, ...) {
1.334 misha 135: va_list args;
136: va_start(args, fmt);
137: va_debug_printf(sapi_info, fmt, args);
138: va_end(args);
1.105 paf 139: }
140:
1.297 paf 141: void debug_dump(SAPI_Info& sapi_info, int level, ArrayOperation& ops) {
142: Array_iterator<Operation> i(ops);
1.190 parser 143: while(i.has_next()) {
1.323 misha 144: OP::OPCODE opcode=i.next().code;
1.1 paf 145:
1.337 misha 146: #if defined(OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT) || defined(OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT)
1.334 misha 147: if(
1.335 misha 148: 1==0
149: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
150: || opcode==OP::OP_GET_OBJECT_ELEMENT
151: || opcode==OP::OP_GET_OBJECT_ELEMENT__WRITE
152: #endif
153: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
154: || opcode==OP::OP_GET_OBJECT_VAR_ELEMENT
155: || opcode==OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE
156: #endif
1.337 misha 157: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
158: || opcode==OP::OP_ROOT_CONSTRUCT_EXPR
1.338 misha 159: || opcode==OP::OP_ROOT_ELEMENT_CONSTRUCT_EXPR
160:
1.337 misha 161: || opcode==OP::OP_ROOT_CONSTRUCT_VALUE
1.338 misha 162: || opcode==OP::OP_ROOT_ELEMENT_CONSTRUCT_VALUE
163:
1.337 misha 164: || opcode==OP::OP_WRITE_CONSTRUCT_EXPR
1.338 misha 165: || opcode==OP::OP_WRITE_ELEMENT_CONSTRUCT_EXPR
166:
1.337 misha 167: || opcode==OP::OP_WRITE_CONSTRUCT_VALUE
1.338 misha 168: || opcode==OP::OP_WRITE_ELEMENT_CONSTRUCT_VALUE
1.340 misha 169: #endif
170: #ifdef OPTIMIZE_BYTECODE_CALL_CONSTRUCT
171: || opcode==OP::OP_ROOT_CALL_CONSTRUCT_EXPR
172: || opcode==OP::OP_ROOT_CALL_CONSTRUCT_VALUE
173:
174: || opcode==OP::OP_WRITE_CALL_CONSTRUCT_EXPR
1.338 misha 175: || opcode==OP::OP_WRITE_CALL_CONSTRUCT_VALUE
1.337 misha 176: #endif
1.334 misha 177: ){
178: i.next(); // skip origin
179: Value& value1=*i.next().value;
180: i.next(); // skip origin
181: Value& value2=*i.next().value;
182: debug_printf(sapi_info,
183: "%*s%s"
184: " \"%s\" \"%s\"",
185: level*4, "", opcode_name[opcode],
1.342 ! misha 186: debug_value_to_cstr(value1), debug_value_to_cstr(value2));
1.334 misha 187: continue;
188: }
189: #endif
1.328 misha 190: if(
191: opcode==OP::OP_VALUE
192: || opcode==OP::OP_STRING__WRITE
193: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
194: || opcode==OP::OP_VALUE__GET_CLASS
195: #endif
196: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
197: || opcode==OP::OP_VALUE__GET_ELEMENT
198: || opcode==OP::OP_VALUE__GET_ELEMENT__WRITE
199: || opcode==OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR
200: #endif
1.342 ! misha 201: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
! 202: || opcode==OP::OP_ROOT_OBJECT_ELEMENT_CONSTRUCT_EXPR
! 203: || opcode==OP::OP_ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR
! 204:
! 205: || opcode==OP::OP_ROOT_OBJECT_ELEMENT_CONSTRUCT_VALUE
! 206: || opcode==OP::OP_ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_VALUE
! 207:
! 208: || opcode==OP::OP_WRITE_OBJECT_ELEMENT_CONSTRUCT_EXPR
! 209: || opcode==OP::OP_WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR
! 210:
! 211: || opcode==OP::OP_WRITE_OBJECT_ELEMENT_CONSTRUCT_VALUE
! 212: || opcode==OP::OP_WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_VALUE
! 213: #endif
1.328 misha 214: ) {
1.297 paf 215: Operation::Origin origin=i.next().origin;
216: Value& value=*i.next().value;
1.342 ! misha 217:
1.297 paf 218: debug_printf(sapi_info,
1.133 paf 219: "%*s%s"
220: " \"%s\" %s",
1.297 paf 221: level*4, "", opcode_name[opcode],
1.342 ! misha 222: debug_value_to_cstr(value), value.type());
1.133 paf 223: continue;
1.15 paf 224: }
1.297 paf 225: debug_printf(sapi_info, "%*s%s", level*4, "", opcode_name[opcode]);
1.1 paf 226:
1.297 paf 227: switch(opcode) {
1.323 misha 228: case OP::OP_CURLY_CODE__STORE_PARAM:
229: case OP::OP_EXPR_CODE__STORE_PARAM:
230: case OP::OP_CURLY_CODE__CONSTRUCT:
231: case OP::OP_NESTED_CODE:
232: case OP::OP_OBJECT_POOL:
233: case OP::OP_STRING_POOL:
234: case OP::OP_CALL:
235: case OP::OP_CALL__WRITE:
1.297 paf 236: if(ArrayOperation* local_ops=i.next().ops)
237: debug_dump(sapi_info, level+1, *local_ops);
1.1 paf 238: }
239: }
240: }
1.336 misha 241: #define DEBUG_PRINT_STR(str) debug_printf(sapi_info, str);
242: #define DEBUG_PRINT_STRING(value) debug_printf(sapi_info, " \"%s\" ", value.cstr());
1.342 ! misha 243: #define DEBUG_PRINT_VALUE_AND_TYPE(value) debug_printf(sapi_info, " \"%s\" %s", debug_value_to_cstr(value), value.type());
1.336 misha 244: #define DEBUG_PRINT_OPS(local_ops) \
245: debug_printf(sapi_info, \
246: " (%d)\n", local_ops?local_ops->count():0); \
247: if(local_ops) debug_dump(sapi_info, 1, *local_ops);
248:
249: #else
250: #define DEBUG_PRINT_STR(str)
251: #define DEBUG_PRINT_STRING(value)
1.342 ! misha 252: #define DEBUG_PRINT_VALUE_AND_TYPE(value)
1.336 misha 253: #define DEBUG_PRINT_OPS(local_ops)
1.157 parser 254: #endif
1.1 paf 255:
1.336 misha 256:
1.297 paf 257: // Request
258:
259: void Request::execute(ArrayOperation& ops) {
260: register Stack<StackItem>& stack=this->stack; // helps a lot on MSVC: 'esi'
1.159 parser 261:
1.304 paf 262: const String* debug_name=0; Operation::Origin debug_origin={0, 0, 0};
1.297 paf 263: try{
1.157 parser 264: #ifdef DEBUG_EXECUTE
1.297 paf 265: debug_printf(sapi_info, "source----------------------------\n");
266: debug_dump(sapi_info, 0, ops);
267: debug_printf(sapi_info, "execution-------------------------\n");
1.157 parser 268: #endif
1.297 paf 269: for(Array_iterator<Operation> i(ops); i.has_next(); ) {
1.322 misha 270: OP::OPCODE opcode=i.next().code;
1.293 paf 271:
1.338 misha 272: bool with_root=true;
273:
1.157 parser 274: #ifdef DEBUG_EXECUTE
1.297 paf 275: debug_printf(sapi_info, "%d:%s", stack.top_index()+1, opcode_name[opcode]);
1.157 parser 276: #endif
1.11 paf 277:
1.297 paf 278: switch(opcode) {
1.51 paf 279: // param in next instruction
1.322 misha 280: case OP::OP_VALUE:
1.32 paf 281: {
1.297 paf 282: debug_origin=i.next().origin;
283: Value& value=*i.next().value;
1.342 ! misha 284:
! 285: DEBUG_PRINT_VALUE_AND_TYPE(value)
! 286:
1.297 paf 287: stack.push(value);
1.32 paf 288: break;
289: }
1.328 misha 290:
291: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
292: case OP::OP_VALUE__GET_CLASS:
293: {
294: // maybe they do ^class:method[] call, remember the fact
295: wcontext->set_somebody_entered_some_class();
296:
297: debug_origin=i.next().origin;
298: Value& value=*i.next().value;
299: const String& name=*value.get_string();
300:
1.336 misha 301: DEBUG_PRINT_STRING(name)
1.328 misha 302:
303: Value* class_value=classes().get(name);
304: if(!class_value)
305: throw Exception(PARSER_RUNTIME,
306: &name,
307: "class is undefined");
308:
309: stack.push(*class_value);
310: break;
311: }
312: #else
1.322 misha 313: case OP::OP_GET_CLASS:
1.38 paf 314: {
1.130 paf 315: // maybe they do ^class:method[] call, remember the fact
1.215 paf 316: wcontext->set_somebody_entered_some_class();
1.98 paf 317:
1.297 paf 318: const String& name=stack.pop().string();
319: Value* value=classes().get(name);
1.120 paf 320: if(!value)
1.316 misha 321: throw Exception(PARSER_RUNTIME,
1.66 paf 322: &name,
1.143 paf 323: "class is undefined");
1.66 paf 324:
1.297 paf 325: stack.push(*value);
1.38 paf 326: break;
327: }
1.328 misha 328: #endif
1.51 paf 329: // OP_WITH
1.322 misha 330: case OP::OP_WITH_ROOT:
1.187 parser 331: {
1.297 paf 332: stack.push(*method_frame);
1.187 parser 333: break;
334: }
1.336 misha 335: case OP::OP_WITH_SELF:
1.37 paf 336: {
1.297 paf 337: stack.push(get_self());
1.37 paf 338: break;
339: }
1.336 misha 340: case OP::OP_WITH_READ:
1.15 paf 341: {
1.297 paf 342: stack.push(*rcontext);
1.20 paf 343: break;
344: }
1.336 misha 345: case OP::OP_WITH_WRITE:
1.20 paf 346: {
1.287 paf 347: if(wcontext==method_frame)
1.316 misha 348: throw Exception(PARSER_RUNTIME,
1.287 paf 349: 0,
350: "$.name outside of $name[...]");
351:
1.297 paf 352: stack.push(*wcontext);
1.20 paf 353: break;
354: }
1.37 paf 355:
1.51 paf 356: // OTHER ACTIONS BUT WITHs
1.322 misha 357: case OP::OP_CONSTRUCT_VALUE:
1.20 paf 358: {
1.297 paf 359: Value& value=stack.pop().value();
360: const String& name=stack.pop().string(); debug_name=&name;
361: Value& ncontext=stack.pop().value();
1.329 misha 362: put_element(ncontext, name, &value);
1.308 paf 363:
1.213 paf 364: break;
365: }
1.337 misha 366:
367: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
1.338 misha 368: case OP::OP_WRITE_CONSTRUCT_EXPR:
369: case OP::OP_WRITE_CONSTRUCT_VALUE:
370: {
371: if(wcontext==method_frame)
372: throw Exception(PARSER_RUNTIME,
373: 0,
374: "$.name outside of $name[...]");
375: with_root=false;
376: // don't stop here. continue in the next block
377: }
1.337 misha 378: case OP::OP_ROOT_CONSTRUCT_EXPR:
1.338 misha 379: case OP::OP_ROOT_CONSTRUCT_VALUE:
1.337 misha 380: {
381: debug_origin=i.next().origin;
382: const String& name=*i.next().value->get_string(); debug_name=&name;
383: DEBUG_PRINT_STRING(name)
384:
1.338 misha 385: debug_origin=i.next().origin;
386: Value& value=*i.next().value;
1.337 misha 387:
1.338 misha 388: if(
389: opcode == OP::OP_WRITE_CONSTRUCT_EXPR
390: || opcode == OP::OP_ROOT_CONSTRUCT_EXPR
391: ){
1.342 ! misha 392: put_element( with_root?*method_frame:*wcontext, name, &value.as_expr_result());
1.338 misha 393: } else {
1.342 ! misha 394: put_element( with_root?*method_frame:*wcontext, name, &value);
1.338 misha 395: }
1.337 misha 396: break;
397: }
398:
1.338 misha 399: case OP::OP_WRITE_ELEMENT_CONSTRUCT_EXPR:
400: case OP::OP_WRITE_ELEMENT_CONSTRUCT_VALUE:
1.337 misha 401: {
402: if(wcontext==method_frame)
403: throw Exception(PARSER_RUNTIME,
404: 0,
405: "$.name outside of $name[...]");
1.338 misha 406: with_root=false;
407: // don't stop here. continue in the next block
408: }
409: case OP::OP_ROOT_ELEMENT_CONSTRUCT_EXPR:
410: case OP::OP_ROOT_ELEMENT_CONSTRUCT_VALUE:
411: {
1.337 misha 412: debug_origin=i.next().origin;
413: const String& name=*i.next().value->get_string(); debug_name=&name;
414: DEBUG_PRINT_STRING(name)
415:
416: debug_origin=i.next().origin;
1.338 misha 417: const String& source_var_name=*i.next().value->get_string(); debug_name=&source_var_name;
418: DEBUG_PRINT_STRING(source_var_name)
1.337 misha 419:
1.338 misha 420: Value& value=get_element(*rcontext, source_var_name);
1.337 misha 421:
1.338 misha 422: if(
423: opcode == OP::OP_WRITE_ELEMENT_CONSTRUCT_EXPR
424: || opcode == OP::OP_ROOT_ELEMENT_CONSTRUCT_EXPR
425: ){
1.342 ! misha 426: put_element( with_root?*method_frame:*wcontext, name, &value.as_expr_result());
! 427: } else {
! 428: put_element( with_root?*method_frame:*wcontext, name, value.is_void()?new VString():&value);
! 429: }
! 430: break;
! 431: }
! 432:
! 433: case OP::OP_WRITE_OBJECT_ELEMENT_CONSTRUCT_EXPR:
! 434: case OP::OP_WRITE_OBJECT_ELEMENT_CONSTRUCT_VALUE:
! 435: {
! 436: if(wcontext==method_frame)
! 437: throw Exception(PARSER_RUNTIME,
! 438: 0,
! 439: "$.name outside of $name[...]");
! 440: with_root=false;
! 441: // don't stop here. continue in the next block
! 442: }
! 443: case OP::OP_ROOT_OBJECT_ELEMENT_CONSTRUCT_EXPR:
! 444: case OP::OP_ROOT_OBJECT_ELEMENT_CONSTRUCT_VALUE:
! 445: {
! 446: debug_origin=i.next().origin;
! 447: const String& name=*i.next().value->get_string(); debug_name=&name;
! 448: DEBUG_PRINT_STRING(name)
! 449:
! 450: i.next(); // skip OP_GET_OBJECT_ELEMENT
! 451: debug_origin=i.next().origin;
! 452: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
! 453: DEBUG_PRINT_STRING(context_name)
! 454:
! 455: Value& object=get_element(*rcontext, context_name);
! 456:
! 457: debug_origin=i.next().origin;
! 458: const String& field_name=*i.next().value->get_string(); debug_name=&field_name;
! 459: DEBUG_PRINT_STRING(field_name)
! 460:
! 461: Value& value=get_element(object, field_name);
! 462:
! 463: if(
! 464: opcode == OP::OP_WRITE_OBJECT_ELEMENT_CONSTRUCT_EXPR
! 465: || opcode == OP::OP_ROOT_OBJECT_ELEMENT_CONSTRUCT_EXPR
! 466: ){
! 467: put_element( with_root?*method_frame:*wcontext, name, &value.as_expr_result());
! 468: } else {
! 469: put_element( with_root?*method_frame:*wcontext, name, value.is_void()?new VString():&value);
! 470: }
! 471: break;
! 472: }
! 473:
! 474: case OP::OP_WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR:
! 475: case OP::OP_WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_VALUE:
! 476: {
! 477: if(wcontext==method_frame)
! 478: throw Exception(PARSER_RUNTIME,
! 479: 0,
! 480: "$.name outside of $name[...]");
! 481: with_root=false;
! 482: // don't stop here. continue in the next block
! 483: }
! 484: case OP::OP_ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR:
! 485: case OP::OP_ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_VALUE:
! 486: {
! 487: debug_origin=i.next().origin;
! 488: const String& name=*i.next().value->get_string(); debug_name=&name;
! 489: DEBUG_PRINT_STRING(name)
! 490:
! 491: i.next(); // skip OP_GET_OBJECT_VAR_ELEMENT
! 492: debug_origin=i.next().origin;
! 493: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
! 494: DEBUG_PRINT_STRING(context_name)
! 495:
! 496: Value& object=get_element(*rcontext, context_name);
! 497:
! 498: debug_origin=i.next().origin;
! 499: const String& var_name=*i.next().value->get_string(); debug_name=&var_name;
! 500: DEBUG_PRINT_STRING(var_name)
! 501:
! 502: const String* field_name=get_element(*rcontext, var_name).get_string();
! 503: Value& value=get_element(object, *field_name);
! 504:
! 505: if(
! 506: opcode == OP::OP_WRITE_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR
! 507: || opcode == OP::OP_ROOT_OBJECT_VAR_ELEMENT_CONSTRUCT_EXPR
! 508: ){
! 509: put_element( with_root?*method_frame:*wcontext, name, &value.as_expr_result());
1.338 misha 510: } else {
1.342 ! misha 511: put_element( with_root?*method_frame:*wcontext, name, value.is_void()?new VString():&value);
1.338 misha 512: }
1.337 misha 513: break;
514: }
1.340 misha 515: #endif // OPTIMIZE_BYTECODE_CONSTRUCT
1.337 misha 516:
1.340 misha 517: #ifdef OPTIMIZE_BYTECODE_CALL_CONSTRUCT
1.338 misha 518: case OP::OP_WRITE_CALL_CONSTRUCT_EXPR:
519: case OP::OP_WRITE_CALL_CONSTRUCT_VALUE:
1.337 misha 520: {
521: if(wcontext==method_frame)
522: throw Exception(PARSER_RUNTIME,
523: 0,
524: "$.name outside of $name[...]");
1.338 misha 525: with_root=false;
526: // don't stop here. continue in the next block
527: }
1.337 misha 528:
1.338 misha 529: case OP::OP_ROOT_CALL_CONSTRUCT_EXPR:
530: case OP::OP_ROOT_CALL_CONSTRUCT_VALUE:
531: {
1.337 misha 532: debug_origin=i.next().origin;
533: const String& name=*i.next().value->get_string(); debug_name=&name;
534:
1.338 misha 535: DEBUG_PRINT_STRING(name)
536:
537: debug_origin=i.next().origin;
538: const String& method_name=*i.next().value->get_string(); debug_name=&method_name;
539:
540: DEBUG_PRINT_STRING(method_name)
541:
1.342 ! misha 542: bool is_expr=(opcode==OP::OP_WRITE_CALL_CONSTRUCT_EXPR || opcode==OP::OP_ROOT_CALL_CONSTRUCT_EXPR);
! 543: if(is_expr)
! 544: wcontext->set_in_expression(true);
! 545:
1.338 misha 546: Value* vjunction;
547: if(Method* method=main_class.get_method(method_name)){ // looking operator of that name FIRST
548: if(!method->junction_template)
549: method->junction_template=new VJunction(main_class, method);
550: vjunction=method->junction_template;
551: } else {
552: vjunction=&get_element(*rcontext, method_name);
553: }
554:
555: // CALL
1.340 misha 556: Operation call_op=i.next();
1.338 misha 557: ArrayOperation* local_ops=i.next().ops;
558:
559: DEBUG_PRINT_OPS(local_ops)
560: DEBUG_PRINT_STR("->\n")
561:
562: Junction* junction=vjunction->get_junction();
563: if(!junction) {
564: if(vjunction->is("void"))
565: throw Exception(PARSER_RUNTIME,
566: 0,
567: "undefined method");
568: else
569: throw Exception(PARSER_RUNTIME,
570: 0,
571: "is '%s', not a method or junction, can not call it",
572: vjunction->type());
573: }
574:
575: VMethodFrame frame(*junction, method_frame);
576:
577: if(local_ops){ // store param code goes here
578: size_t first = stack.top_index();
579: execute(*local_ops);
580: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
581: op_call(frame);
582: stack.set_top_index(first);
583: } else {
584: frame.empty_params();
585: op_call(frame);
586: }
1.340 misha 587:
1.338 misha 588: DEBUG_PRINT_STR("<-returned")
589:
1.340 misha 590: if(call_op.code==OP::OP_CALL__WRITE){
591: write_assign_lang(frame.result());
1.338 misha 592: } else {
1.340 misha 593: Value& value=frame.result().as_value();
594:
1.342 ! misha 595: if(is_expr){
! 596: wcontext->set_in_expression(false);
! 597: put_element( with_root?*method_frame:*wcontext, name, &value.as_expr_result());
1.340 misha 598: } else {
1.342 ! misha 599: put_element( with_root?*method_frame:*wcontext, name, &value);
1.340 misha 600: }
1.338 misha 601: }
1.337 misha 602:
1.338 misha 603: if(get_skip())
604: return;
605: if(get_interrupted()) {
606: set_interrupted(false);
607: throw Exception("parser.interrupted",
608: 0,
609: "execution stopped");
610: }
1.337 misha 611:
612: break;
613: }
1.340 misha 614: #endif // OPTIMIZE_BYTECODE_CALL_CONSTRUCT
1.337 misha 615:
1.322 misha 616: case OP::OP_CONSTRUCT_EXPR:
1.80 paf 617: {
1.219 paf 618: // see OP_PREPARE_TO_EXPRESSION
619: wcontext->set_in_expression(false);
620:
1.308 paf 621: Value& expr=stack.pop().value();
1.297 paf 622: const String& name=stack.pop().string(); debug_name=&name;
623: Value& ncontext=stack.pop().value();
1.308 paf 624: Value& value=expr.as_expr_result();
1.329 misha 625: put_element(ncontext, name, &value);
1.80 paf 626: break;
627: }
1.337 misha 628:
1.322 misha 629: case OP::OP_CURLY_CODE__CONSTRUCT:
1.182 parser 630: {
1.297 paf 631: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 632:
633: DEBUG_PRINT_OPS((&local_ops))
634:
1.326 misha 635: VJunction& value=*new VJunction(
1.297 paf 636: get_self(), 0,
1.257 paf 637: method_frame,
1.240 paf 638: rcontext,
639: wcontext,
1.312 paf 640: &local_ops);
1.238 paf 641:
1.326 misha 642: wcontext->attach_junction(&value);
643:
1.297 paf 644: const String& name=stack.pop().string(); debug_name=&name;
645: Value& ncontext=stack.pop().value();
1.312 paf 646: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, &value, false))
647: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT)
1.316 misha 648: throw Exception(PARSER_RUNTIME,
1.308 paf 649: 0,
650: "property value can not be code, use [] or () brackets");
651:
1.182 parser 652: break;
653: }
1.322 misha 654: case OP::OP_NESTED_CODE:
1.209 paf 655: {
1.297 paf 656: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 657:
658: DEBUG_PRINT_OPS((&local_ops))
659:
1.297 paf 660: stack.push(local_ops);
1.209 paf 661: break;
662: }
1.322 misha 663: case OP::OP_WRITE_VALUE:
1.13 paf 664: {
1.297 paf 665: Value& value=stack.pop().value();
666: write_assign_lang(value);
1.86 paf 667: break;
668: }
1.322 misha 669: case OP::OP_WRITE_EXPR_RESULT:
1.108 paf 670: {
1.297 paf 671: Value& value=stack.pop().value();
672: write_no_lang(value.as_expr_result());
1.230 paf 673:
674: // must be after write(result) and
1.219 paf 675: // see OP_PREPARE_TO_EXPRESSION
676: wcontext->set_in_expression(false);
1.108 paf 677: break;
678: }
1.322 misha 679: case OP::OP_STRING__WRITE:
1.86 paf 680: {
1.297 paf 681: i.next(); // ignore origin
682: Value* value=i.next().value;
1.336 misha 683:
684: const String& string_value=*value->get_string();
685:
686: DEBUG_PRINT_STRING(string_value)
687:
688: write_no_lang(string_value);
1.13 paf 689: break;
1.14 paf 690: }
1.328 misha 691:
692: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
693: case OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR:
694: {
695: debug_origin=i.next().origin;
696: const String& name=*i.next().value->get_string(); debug_name=&name;
697:
1.336 misha 698: DEBUG_PRINT_STRING(name)
699:
1.330 misha 700: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
701: if(!method->junction_template) method->junction_template=new VJunction(main_class, method);
702: stack.push(*method->junction_template);
703: break;
704: }
705: Value& value=get_element(*rcontext, name);
1.328 misha 706: stack.push(value);
707: break;
708: }
709: #else
1.322 misha 710: case OP::OP_GET_ELEMENT_OR_OPERATOR:
1.215 paf 711: {
1.297 paf 712: const String& name=stack.pop().string(); debug_name=&name;
713: Value& ncontext=stack.pop().value();
1.330 misha 714: if(Method* method=main_class.get_method(name)){ // looking operator of that name FIRST
715: if(!method->junction_template) method->junction_template=new VJunction(main_class, method);
716: stack.push(*method->junction_template);
717: break;
718: }
719: Value& value=get_element(ncontext, name);
1.297 paf 720: stack.push(value);
1.215 paf 721: break;
722: }
1.328 misha 723: #endif
724:
1.335 misha 725: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
726: case OP::OP_GET_OBJECT_ELEMENT:
727: case OP::OP_GET_OBJECT_ELEMENT__WRITE:
1.334 misha 728: {
729: debug_origin=i.next().origin;
730: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
1.336 misha 731:
732: DEBUG_PRINT_STRING(context_name)
733:
1.334 misha 734: Value& object=get_element(*rcontext, context_name);
735:
736: debug_origin=i.next().origin;
737: const String& field_name=*i.next().value->get_string(); debug_name=&field_name;
1.336 misha 738:
739: DEBUG_PRINT_STRING(field_name)
740:
1.334 misha 741: Value& value=get_element(object, field_name);
742:
743: i.next(); // skip last OP_GET_ELEMENT
744:
1.335 misha 745: if(opcode==OP::OP_GET_OBJECT_ELEMENT){
746: stack.push(value);
747: } else {
748: write_assign_lang(value);
749: }
750: break;
751: }
752: #endif
753:
754: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
755: case OP::OP_GET_OBJECT_VAR_ELEMENT:
756: case OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE:
757: {
758: debug_origin=i.next().origin;
759: const String& context_name=*i.next().value->get_string(); debug_name=&context_name;
1.336 misha 760:
761: DEBUG_PRINT_STRING(context_name)
762:
1.335 misha 763: Value& object=get_element(*rcontext, context_name);
764:
765: debug_origin=i.next().origin;
766: const String& var_name=*i.next().value->get_string(); debug_name=&var_name;
1.336 misha 767:
768: DEBUG_PRINT_STRING(var_name)
769:
1.335 misha 770: const String* field=get_element(*rcontext, var_name).get_string();
771:
772: Value& value=get_element(object, *field);
773:
774: i.next(); // skip last OP_GET_ELEMENT
775:
776: if(opcode==OP::OP_GET_OBJECT_VAR_ELEMENT){
1.334 misha 777: stack.push(value);
778: } else {
779: write_assign_lang(value);
780: }
781: break;
782: }
783: #endif
784:
1.322 misha 785: case OP::OP_GET_ELEMENT:
1.11 paf 786: {
1.297 paf 787: const String& name=stack.pop().string(); debug_name=&name;
788: Value& ncontext=stack.pop().value();
1.330 misha 789: Value& value=get_element(ncontext, name);
1.297 paf 790: stack.push(value);
1.17 paf 791: break;
792: }
793:
1.328 misha 794: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
795: case OP::OP_VALUE__GET_ELEMENT:
796: {
797: debug_origin=i.next().origin;
798: const String& name=*i.next().value->get_string(); debug_name=&name;
799:
1.336 misha 800: DEBUG_PRINT_STRING(name)
1.328 misha 801:
1.330 misha 802: Value& value=get_element(*rcontext, name);
1.328 misha 803: stack.push(value);
804: break;
805: }
806: #endif
807:
808:
1.322 misha 809: case OP::OP_GET_ELEMENT__WRITE:
1.17 paf 810: {
1.297 paf 811: const String& name=stack.pop().string(); debug_name=&name;
812: Value& ncontext=stack.pop().value();
1.330 misha 813: Value& value=get_element(ncontext, name);
1.297 paf 814: write_assign_lang(value);
1.17 paf 815: break;
816: }
817:
1.328 misha 818: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
819: case OP::OP_VALUE__GET_ELEMENT__WRITE:
820: {
821: debug_origin=i.next().origin;
822: const String& name=*i.next().value->get_string(); debug_name=&name;
823:
1.336 misha 824: DEBUG_PRINT_STRING(name)
1.328 misha 825:
1.330 misha 826: Value& value=get_element(*rcontext, name);
1.328 misha 827: write_assign_lang(value);
828: break;
829: }
830: #endif
1.32 paf 831:
1.322 misha 832: case OP::OP_OBJECT_POOL:
1.17 paf 833: {
1.297 paf 834: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 835:
1.257 paf 836: WContext *saved_wcontext=wcontext;
1.297 paf 837: String::Language saved_lang=flang;
838: flang=String::L_PASS_APPENDED;
839: WWrapper local(0/*empty*/, wcontext);
1.226 paf 840: wcontext=&local;
841:
1.297 paf 842: execute(local_ops);
1.226 paf 843:
1.297 paf 844: stack.push(wcontext->result().as_value());
1.257 paf 845: flang=saved_lang;
846: wcontext=saved_wcontext;
1.13 paf 847: break;
1.15 paf 848: }
1.13 paf 849:
1.322 misha 850: case OP::OP_STRING_POOL:
1.49 paf 851: {
1.297 paf 852: ArrayOperation& local_ops=*i.next().ops;
1.226 paf 853:
1.257 paf 854: WContext *saved_wcontext=wcontext;
1.297 paf 855: WWrapper local(0 /*empty*/, wcontext);
1.226 paf 856: wcontext=&local;
857:
1.297 paf 858: execute(local_ops);
1.226 paf 859:
1.297 paf 860: Value* value;
1.49 paf 861: // from "$a $b" part of expression taking only string value,
862: // ignoring any other content of wcontext
1.297 paf 863: if(const String* string=wcontext->get_string())
864: value=new VString(*string);
1.80 paf 865: else
1.324 misha 866: value=VVoid::get();
1.297 paf 867: stack.push(*value);
868:
1.257 paf 869: wcontext=saved_wcontext;
1.49 paf 870: break;
871: }
872:
1.51 paf 873: // CALL
1.322 misha 874: case OP::OP_CURLY_CODE__STORE_PARAM:
875: case OP::OP_EXPR_CODE__STORE_PARAM:
1.28 paf 876: {
1.237 paf 877: // code
1.297 paf 878: ArrayOperation& local_ops=*i.next().ops;
1.336 misha 879:
880: DEBUG_PRINT_OPS((&local_ops))
881:
1.237 paf 882: // when they evaluate expression parameter,
883: // the object expression result
884: // does not need to be written into calling frame
885: // it must go into any expressions using that parameter
886: // hence, we zero junction.wcontext here, and later
887: // in .process we would test that field
888: // in decision "which wwrapper to use"
1.326 misha 889: VJunction& value=*new VJunction(
1.297 paf 890: get_self(), 0,
1.257 paf 891: method_frame,
1.237 paf 892: rcontext,
1.322 misha 893: opcode==OP::OP_EXPR_CODE__STORE_PARAM?0:wcontext,
1.312 paf 894: &local_ops);
1.326 misha 895: #ifdef USE_DESTRUCTORS
896: value.set_temporal(true);
897: #else
898: if (opcode!=OP::OP_EXPR_CODE__STORE_PARAM)
899: #endif
900: wcontext->attach_junction(&value);
1.237 paf 901: // store param
1.329 misha 902: stack.push(value);
1.29 paf 903: break;
904: }
905:
1.322 misha 906: case OP::OP_PREPARE_TO_CONSTRUCT_OBJECT:
1.186 parser 907: {
1.200 paf 908: wcontext->set_constructing(true);
1.186 parser 909: break;
910: }
1.219 paf 911:
1.322 misha 912: case OP::OP_PREPARE_TO_EXPRESSION:
1.219 paf 913: {
914: wcontext->set_in_expression(true);
915: break;
916: }
917:
1.322 misha 918: case OP::OP_CALL:
1.29 paf 919: {
1.297 paf 920: ArrayOperation* local_ops=i.next().ops;
1.237 paf 921:
1.336 misha 922: DEBUG_PRINT_OPS(local_ops)
923: DEBUG_PRINT_STR("->\n")
924:
1.297 paf 925: Value& value=stack.pop().value();
1.237 paf 926:
1.297 paf 927: Junction* junction=value.get_junction();
928: if(!junction) {
929: if(value.is("void"))
1.316 misha 930: throw Exception(PARSER_RUNTIME,
1.297 paf 931: 0,
932: "undefined method");
933: else
1.316 misha 934: throw Exception(PARSER_RUNTIME,
1.297 paf 935: 0,
936: "is '%s', not a method or junction, can not call it",
937: value.type());
938: }
1.237 paf 939:
1.321 misha 940: VMethodFrame frame(*junction, method_frame);
1.330 misha 941:
1.321 misha 942: if(local_ops){ // store param code goes here
1.329 misha 943: size_t first = stack.top_index();
1.321 misha 944: execute(*local_ops);
1.329 misha 945: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
1.332 misha 946: op_call(frame);
1.329 misha 947: stack.set_top_index(first);
1.330 misha 948: } else {
949: frame.empty_params();
1.332 misha 950: op_call(frame);
1.321 misha 951: }
1.330 misha 952:
1.332 misha 953: stack.push(frame.result().as_value());
954:
1.336 misha 955: DEBUG_PRINT_STR("<-returned")
956:
1.332 misha 957: if(get_skip())
958: return;
959: if(get_interrupted()) {
960: set_interrupted(false);
961: throw Exception("parser.interrupted",
962: 0,
963: "execution stopped");
1.237 paf 964: }
1.332 misha 965: break;
966: }
1.220 paf 967:
1.332 misha 968: case OP::OP_CALL__WRITE:
969: {
970: ArrayOperation* local_ops=i.next().ops;
971:
1.336 misha 972: DEBUG_PRINT_OPS(local_ops)
973: DEBUG_PRINT_STR("->\n")
974:
1.332 misha 975: Value& value=stack.pop().value();
976:
977: Junction* junction=value.get_junction();
978: if(!junction) {
979: if(value.is("void"))
980: throw Exception(PARSER_RUNTIME,
981: 0,
982: "undefined method");
983: else
984: throw Exception(PARSER_RUNTIME,
985: 0,
986: "is '%s', not a method or junction, can not call it",
987: value.type());
988: }
989:
990: #ifdef OPTIMIZE_CALL
991: const Method& method=*junction->method;
992: if (!wcontext->get_constructing() && method.call_optimization==Method::CO_WITHOUT_FRAME){
993: if(local_ops){ // store param code goes here
994: size_t first = stack.top_index();
995: execute(*local_ops);
996:
997: MethodParams method_params;
998: method_params.store_params((Value**)stack.ptr(first), stack.top_index()-first);
999: method.check_actual_numbered_params(junction->self, &method_params);
1000: method.native_code(*this, method_params); // execute it
1001:
1002: stack.set_top_index(first);
1003: } else {
1004: MethodParams method_params;
1005: method.check_actual_numbered_params(junction->self, &method_params);
1006: method.native_code(*this, method_params); // execute it
1007: }
1008: } else if (!wcontext->get_constructing() && method.call_optimization==Method::CO_WITHOUT_WCONTEXT){
1009: VMethodFrame frame(*junction, method_frame);
1010: if(local_ops){ // store param code goes here
1011: size_t first = stack.top_index();
1012: execute(*local_ops);
1013:
1014: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
1015: op_call_write(frame);
1016:
1017: stack.set_top_index(first);
1018: } else {
1019: frame.empty_params();
1020: op_call_write(frame);
1021: }
1022: } else
1023: #endif // OPTIMIZE_CALL
1024: {
1025: VMethodFrame frame(*junction, method_frame);
1026: if(local_ops){ // store param code goes here
1027: size_t first = stack.top_index();
1028: execute(*local_ops);
1029:
1030: frame.store_params((Value**)stack.ptr(first), stack.top_index()-first);
1031: op_call(frame);
1032:
1033: stack.set_top_index(first);
1034: } else {
1035: frame.empty_params();
1036: op_call(frame);
1037: }
1038: write_assign_lang(frame.result());
1039: }
1.336 misha 1040:
1041: DEBUG_PRINT_STR("<-returned")
1.327 misha 1042:
1043: if(get_skip())
1044: return;
1045: if(get_interrupted()) {
1046: set_interrupted(false);
1047: throw Exception("parser.interrupted",
1048: 0,
1049: "execution stopped");
1050: }
1.49 paf 1051: break;
1052: }
1053:
1.55 paf 1054: // expression ops: unary
1.322 misha 1055: case OP::OP_NEG:
1.55 paf 1056: {
1.297 paf 1057: Value& a=stack.pop().value();
1058: Value& value=*new VDouble(-a.as_double());
1059: stack.push(value);
1.55 paf 1060: break;
1061: }
1.322 misha 1062: case OP::OP_INV:
1.55 paf 1063: {
1.297 paf 1064: Value& a=stack.pop().value();
1065: Value& value=*new VDouble(~a.as_int());
1066: stack.push(value);
1.55 paf 1067: break;
1068: }
1.322 misha 1069: case OP::OP_NOT:
1.55 paf 1070: {
1.297 paf 1071: Value& a=stack.pop().value();
1.327 misha 1072: Value& value=VBool::get(!a.as_bool());
1.297 paf 1073: stack.push(value);
1.55 paf 1074: break;
1075: }
1.322 misha 1076: case OP::OP_DEF:
1.62 paf 1077: {
1.297 paf 1078: Value& a=stack.pop().value();
1.327 misha 1079: Value& value=VBool::get(a.is_defined());
1.297 paf 1080: stack.push(value);
1.62 paf 1081: break;
1082: }
1.322 misha 1083: case OP::OP_IN:
1.62 paf 1084: {
1.297 paf 1085: Value& a=stack.pop().value();
1086: const String& path=a.as_string();
1.327 misha 1087: Value& value=VBool::get(request_info.uri && *request_info.uri && path.this_starts(request_info.uri));
1.297 paf 1088: stack.push(value);
1.62 paf 1089: break;
1090: }
1.322 misha 1091: case OP::OP_FEXISTS:
1.62 paf 1092: {
1.297 paf 1093: Value& a=stack.pop().value();
1.327 misha 1094: Value& value=VBool::get(file_exist(absolute(a.as_string())));
1.297 paf 1095: stack.push(value);
1.148 paf 1096: break;
1097: }
1.322 misha 1098: case OP::OP_DEXISTS:
1.148 paf 1099: {
1.297 paf 1100: Value& a=stack.pop().value();
1.327 misha 1101: Value& value=VBool::get(dir_exists(absolute(a.as_string())));
1.297 paf 1102: stack.push(value);
1.62 paf 1103: break;
1104: }
1.55 paf 1105:
1106: // expression ops: binary
1.322 misha 1107: case OP::OP_SUB:
1.53 paf 1108: {
1.297 paf 1109: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1110: Value& value=*new VDouble(a.as_double() - b.as_double());
1111: stack.push(value);
1.53 paf 1112: break;
1113: }
1.322 misha 1114: case OP::OP_ADD:
1.53 paf 1115: {
1.297 paf 1116: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1117: Value& value=*new VDouble(a.as_double() + b.as_double());
1118: stack.push(value);
1.53 paf 1119: break;
1120: }
1.322 misha 1121: case OP::OP_MUL:
1.49 paf 1122: {
1.297 paf 1123: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1124: Value& value=*new VDouble(a.as_double() * b.as_double());
1125: stack.push(value);
1.53 paf 1126: break;
1127: }
1.322 misha 1128: case OP::OP_DIV:
1.53 paf 1129: {
1.297 paf 1130: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 1131:
1.297 paf 1132: double a_double=a.as_double();
1133: double b_double=b.as_double();
1.170 parser 1134:
1.171 parser 1135: if(b_double == 0) {
1.297 paf 1136: //const String* problem_source=b.as_string();
1.223 paf 1137: throw Exception("number.zerodivision",
1.297 paf 1138: 0, //problem_source,
1.170 parser 1139: "Division by zero");
1.171 parser 1140: }
1.170 parser 1141:
1.297 paf 1142: Value& value=*new VDouble(a_double / b_double);
1143: stack.push(value);
1.54 paf 1144: break;
1145: }
1.322 misha 1146: case OP::OP_MOD:
1.55 paf 1147: {
1.297 paf 1148: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.170 parser 1149:
1.297 paf 1150: double a_double=a.as_double();
1151: double b_double=b.as_double();
1.170 parser 1152:
1.173 parser 1153: if(b_double == 0) {
1.297 paf 1154: //const String* problem_source=b.as_string();
1.223 paf 1155: throw Exception("number.zerodivision",
1.297 paf 1156: 0, //problem_source,
1.170 parser 1157: "Modulus by zero");
1.171 parser 1158: }
1.170 parser 1159:
1.297 paf 1160: Value& value=*new VDouble(fmod(a_double, b_double));
1161: stack.push(value);
1.201 paf 1162: break;
1163: }
1.322 misha 1164: case OP::OP_INTDIV:
1.201 paf 1165: {
1.297 paf 1166: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.201 paf 1167:
1.297 paf 1168: int a_int=a.as_int();
1169: int b_int=b.as_int();
1.201 paf 1170:
1171: if(b_int == 0) {
1.297 paf 1172: //const String* problem_source=b.as_string();
1.223 paf 1173: throw Exception("number.zerodivision",
1.297 paf 1174: 0, //problem_source,
1.201 paf 1175: "Division by zero");
1176: }
1177:
1.297 paf 1178: Value& value=*new VInt(a_int / b_int);
1179: stack.push(value);
1.55 paf 1180: break;
1181: }
1.322 misha 1182: case OP::OP_BIN_SL:
1.274 paf 1183: {
1.297 paf 1184: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1185: Value& value=*new VInt(
1186: a.as_int() <<
1187: b.as_int());
1188: stack.push(value);
1.274 paf 1189: break;
1190: }
1.322 misha 1191: case OP::OP_BIN_SR:
1.274 paf 1192: {
1.297 paf 1193: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1194: Value& value=*new VInt(
1195: a.as_int() >>
1196: b.as_int());
1197: stack.push(value);
1.274 paf 1198: break;
1199: }
1.322 misha 1200: case OP::OP_BIN_AND:
1.54 paf 1201: {
1.297 paf 1202: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1203: Value& value=*new VInt(
1204: a.as_int() &
1205: b.as_int());
1206: stack.push(value);
1.54 paf 1207: break;
1208: }
1.322 misha 1209: case OP::OP_BIN_OR:
1.54 paf 1210: {
1.297 paf 1211: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1212: Value& value=*new VInt(
1213: a.as_int() |
1214: b.as_int());
1215: stack.push(value);
1.55 paf 1216: break;
1217: }
1.322 misha 1218: case OP::OP_BIN_XOR:
1.56 paf 1219: {
1.297 paf 1220: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1221: Value& value=*new VInt(
1222: a.as_int() ^
1223: b.as_int());
1224: stack.push(value);
1.56 paf 1225: break;
1226: }
1.322 misha 1227: case OP::OP_LOG_AND:
1.55 paf 1228: {
1.297 paf 1229: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 1230: bool result;
1.297 paf 1231: if(a.as_bool()) {
1232: execute(local_ops);
1233: Value& b=stack.pop().value();
1234: result=b.as_bool();
1.209 paf 1235: } else
1.263 paf 1236: result=false;
1.327 misha 1237: Value& value=VBool::get(result);
1.297 paf 1238: stack.push(value);
1.55 paf 1239: break;
1240: }
1.322 misha 1241: case OP::OP_LOG_OR:
1.55 paf 1242: {
1.297 paf 1243: ArrayOperation& local_ops=stack.pop().ops(); Value& a=stack.pop().value();
1.263 paf 1244: bool result;
1.297 paf 1245: if(a.as_bool())
1.263 paf 1246: result=true;
1.209 paf 1247: else {
1.297 paf 1248: execute(local_ops);
1249: Value& b=stack.pop().value();
1250: result=b.as_bool();
1.209 paf 1251: }
1.327 misha 1252: Value& value=VBool::get(result);
1.297 paf 1253: stack.push(value);
1.56 paf 1254: break;
1255: }
1.322 misha 1256: case OP::OP_LOG_XOR:
1.56 paf 1257: {
1.297 paf 1258: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1259: Value& value=VBool::get(a.as_bool() ^ b.as_bool());
1.297 paf 1260: stack.push(value);
1.55 paf 1261: break;
1262: }
1.322 misha 1263: case OP::OP_NUM_LT:
1.55 paf 1264: {
1.297 paf 1265: volatile double b_double=stack.pop().value().as_double();
1266: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1267: Value& value=VBool::get(a_double<b_double);
1.297 paf 1268: stack.push(value);
1.55 paf 1269: break;
1270: }
1.322 misha 1271: case OP::OP_NUM_GT:
1.55 paf 1272: {
1.297 paf 1273: volatile double b_double=stack.pop().value().as_double();
1274: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1275: Value& value=VBool::get(a_double>b_double);
1.297 paf 1276: stack.push(value);
1.55 paf 1277: break;
1278: }
1.322 misha 1279: case OP::OP_NUM_LE:
1.55 paf 1280: {
1.297 paf 1281: volatile double b_double=stack.pop().value().as_double();
1282: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1283: Value& value=VBool::get(a_double<=b_double);
1.297 paf 1284: stack.push(value);
1.55 paf 1285: break;
1286: }
1.322 misha 1287: case OP::OP_NUM_GE:
1.55 paf 1288: {
1.297 paf 1289: volatile double b_double=stack.pop().value().as_double();
1290: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1291: Value& value=VBool::get(a_double>=b_double);
1.297 paf 1292: stack.push(value);
1.55 paf 1293: break;
1294: }
1.322 misha 1295: case OP::OP_NUM_EQ:
1.55 paf 1296: {
1.297 paf 1297: volatile double b_double=stack.pop().value().as_double();
1298: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1299: Value& value=VBool::get(a_double==b_double);
1.297 paf 1300: stack.push(value);
1.55 paf 1301: break;
1302: }
1.322 misha 1303: case OP::OP_NUM_NE:
1.55 paf 1304: {
1.297 paf 1305: volatile double b_double=stack.pop().value().as_double();
1306: volatile double a_double=stack.pop().value().as_double();
1.327 misha 1307: Value& value=VBool::get(a_double!=b_double);
1.297 paf 1308: stack.push(value);
1.54 paf 1309: break;
1310: }
1.322 misha 1311: case OP::OP_STR_LT:
1.58 paf 1312: {
1.297 paf 1313: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1314: Value& value=VBool::get(a.as_string() < b.as_string());
1.297 paf 1315: stack.push(value);
1.58 paf 1316: break;
1317: }
1.322 misha 1318: case OP::OP_STR_GT:
1.58 paf 1319: {
1.297 paf 1320: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1321: Value& value=VBool::get(a.as_string() > b.as_string());
1.297 paf 1322: stack.push(value);
1.58 paf 1323: break;
1324: }
1.322 misha 1325: case OP::OP_STR_LE:
1.58 paf 1326: {
1.297 paf 1327: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1328: Value& value=VBool::get(a.as_string() <= b.as_string());
1.297 paf 1329: stack.push(value);
1.58 paf 1330: break;
1331: }
1.322 misha 1332: case OP::OP_STR_GE:
1.54 paf 1333: {
1.297 paf 1334: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1335: Value& value=VBool::get(a.as_string() >= b.as_string());
1.297 paf 1336: stack.push(value);
1.58 paf 1337: break;
1338: }
1.322 misha 1339: case OP::OP_STR_EQ:
1.58 paf 1340: {
1.297 paf 1341: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1342: Value& value=VBool::get(a.as_string() == b.as_string());
1.297 paf 1343: stack.push(value);
1.58 paf 1344: break;
1345: }
1.322 misha 1346: case OP::OP_STR_NE:
1.58 paf 1347: {
1.297 paf 1348: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1349: Value& value=VBool::get(a.as_string() != b.as_string());
1.297 paf 1350: stack.push(value);
1.103 paf 1351: break;
1352: }
1.322 misha 1353: case OP::OP_IS:
1.103 paf 1354: {
1.297 paf 1355: Value& b=stack.pop().value(); Value& a=stack.pop().value();
1.327 misha 1356: Value& value=VBool::get(a.is(b.as_string().cstr()));
1.297 paf 1357: stack.push(value);
1.28 paf 1358: break;
1359: }
1360:
1.11 paf 1361: default:
1.223 paf 1362: throw Exception(0,
1.67 paf 1363: 0,
1.297 paf 1364: "invalid opcode %d", opcode);
1.11 paf 1365: }
1366: }
1.306 paf 1367: } catch(const Exception&) {
1.297 paf 1368: // record it to stack trace
1.301 paf 1369: if(debug_name)
1370: exception_trace.push(Trace(debug_name, debug_origin));
1.297 paf 1371: rethrow;
1372: }
1.1 paf 1373: }
1.17 paf 1374:
1.330 misha 1375: #define SAVE_CONTEXT \
1376: VMethodFrame *saved_method_frame=method_frame; \
1377: Value* saved_rcontext=rcontext; \
1378: WContext *saved_wcontext=wcontext;
1379:
1380: #define RESTORE_CONTEXT \
1381: wcontext=saved_wcontext; \
1382: rcontext=saved_rcontext; \
1383: method_frame=saved_method_frame;
1384:
1.332 misha 1385: void Request::op_call(VMethodFrame& frame){
1386: const Junction &junction=frame.junction;
1387: VStateless_class& called_class=*junction.self.get_class();
1.319 misha 1388: Value* new_self;
1.332 misha 1389:
1.319 misha 1390: if(wcontext->get_constructing()) {
1391: wcontext->set_constructing(false);
1.332 misha 1392: if(junction.method->call_type!=Method::CT_STATIC) {
1.319 misha 1393: // this is a constructor call
1394: HashStringValue& new_object_fields=*new HashStringValue();
1.332 misha 1395: if(new_self=called_class.create_new_value(fpool, new_object_fields)) {
1.319 misha 1396: // some stateless_class creatable derivates
1397: } else
1398: throw Exception(PARSER_RUNTIME,
1399: 0, //&frame.name(),
1400: "is not a constructor, system class '%s' can be constructed only implicitly",
1401: called_class.name().cstr());
1402:
1403: frame.write(*new_self,
1404: String::L_CLEAN // not used, always an object, not string
1405: );
1406: } else
1407: throw Exception(PARSER_RUNTIME,
1408: 0, //&frame.name(),
1409: "method is static and can not be used as constructor");
1.332 misha 1410: } else
1411: new_self=&junction.self;
1.319 misha 1412:
1413: frame.set_self(*new_self);
1414:
1415: // see OP_PREPARE_TO_EXPRESSION
1416: frame.set_in_expression(wcontext->get_in_expression());
1417:
1.332 misha 1418: SAVE_CONTEXT
1419:
1.319 misha 1420: rcontext=wcontext=&frame;
1.332 misha 1421: method_frame=&frame;
1.319 misha 1422:
1.332 misha 1423: const Method& method=*junction.method;
1424: Method::Call_type call_type=&called_class==new_self ? Method::CT_STATIC : Method::CT_DYNAMIC;
1.319 misha 1425:
1.332 misha 1426: if(method.call_type==Method::CT_ANY || method.call_type==call_type) { // allowed call type?
1427: if(method.native_code) { // native code?
1428: method.check_actual_numbered_params(junction.self, frame.numbered_params());
1429: method.native_code(*this, *frame.numbered_params()); // execute it
1430: } else // parser code, execute it
1431: recoursion_checked_execute(*method.parser_code);
1432: } else
1433: throw Exception(PARSER_RUNTIME,
1434: 0,
1435: "is not allowed to be called %s",
1436: call_type==Method::CT_STATIC?"statically":"dynamically");
1.334 misha 1437:
1.330 misha 1438: RESTORE_CONTEXT
1.332 misha 1439: //return &frame;
1440: }
1441:
1442: void Request::op_call_write(VMethodFrame& frame){
1443: const Junction &junction=frame.junction;
1444:
1445: frame.set_self(junction.self);
1446:
1447: VMethodFrame *saved_method_frame=method_frame;
1448: Value* saved_rcontext=rcontext;
1.319 misha 1449:
1.332 misha 1450: rcontext=&frame;
1451: method_frame=&frame;
1452:
1453: const Method& method=*junction.method;
1454: Method::Call_type call_type=junction.self.get_class()==&junction.self ? Method::CT_STATIC : Method::CT_DYNAMIC;
1455:
1.333 misha 1456: if(method.call_type==Method::CT_ANY || method.call_type==call_type) { // allowed call type?
1457: if(method.native_code) { // native code?
1458: method.check_actual_numbered_params(junction.self, frame.numbered_params());
1459: method.native_code(*this, *frame.numbered_params()); // execute it
1460: } else // parser code, execute it
1461: recoursion_checked_execute(*method.parser_code);
1.332 misha 1462: } else
1463: throw Exception(PARSER_RUNTIME,
1464: 0,
1465: "is not allowed to be called %s",
1466: call_type==Method::CT_STATIC?"statically":"dynamically");
1467:
1468: rcontext=saved_rcontext;
1469: method_frame=saved_method_frame;
1.319 misha 1470: }
1471:
1.292 paf 1472: /**
1473: @bug ^superbase:method would dynamically call ^base:method if there is any
1474: */
1.330 misha 1475: Value& Request::get_element(Value& ncontext, const String& name) {
1476: if(!wcontext->get_constructing() // not constructing
1477: && wcontext->get_somebody_entered_some_class() ) // ^class:method
1.297 paf 1478: if(VStateless_class *called_class=ncontext.get_class())
1.249 paf 1479: if(VStateless_class *read_class=rcontext->get_class())
1480: if(read_class->derived_from(*called_class)) // current derived from called
1.297 paf 1481: if(Value* base=get_self().base()) { // doing DYNAMIC call
1.330 misha 1482: Temp_derived temp_derived(*base, 0); // temporarily prevent go-back-down virtual calls
1483: Value *value=base->get_element(name, *base, true); // virtual-up lookup starting from parent
1484: return *(value ? &process_to_value(*value) : VVoid::get());
1.249 paf 1485: }
1.330 misha 1486:
1487: Value* value=ncontext.get_element(name, ncontext, true);
1.291 paf 1488:
1489: if(value && wcontext->get_constructing())
1.330 misha 1490: if(Junction* junction=value->get_junction())
1.297 paf 1491: if(junction->self.get_class()!=&ncontext)
1.316 misha 1492: throw Exception(PARSER_RUNTIME,
1.291 paf 1493: &name,
1.297 paf 1494: "constructor must be declared in class '%s'",
1495: ncontext.get_class()->name_cstr());
1.63 paf 1496:
1.330 misha 1497: return *(value ? &process_to_value(*value) : VVoid::get());
1.309 paf 1498: }
1499:
1.329 misha 1500: void Request::put_element(Value& ncontext, const String& name, Value* value) {
1.309 paf 1501: // put_element can return property-setting-junction
1.329 misha 1502: if(const VJunction* vjunction=ncontext.put_element(ncontext, name, value, false))
1.312 paf 1503: if(vjunction!=PUT_ELEMENT_REPLACED_ELEMENT) {
1.309 paf 1504: // process it
1.329 misha 1505: VMethodFrame frame(vjunction->junction(), method_frame/*caller*/);
1506: int param_count=frame.method_params_count();
1507:
1.309 paf 1508: if(param_count!=1)
1.316 misha 1509: throw Exception(PARSER_RUNTIME,
1.309 paf 1510: 0,
1511: "setter method must have ONE parameter (has %d parameters)", param_count);
1512:
1.329 misha 1513: frame.store_params(&value, 1);
1.309 paf 1514: frame.set_self(frame.junction.self);
1515:
1.330 misha 1516: SAVE_CONTEXT
1.309 paf 1517:
1518: rcontext=wcontext=&frame;
1519: method_frame=&frame;
1520:
1.311 paf 1521: // prevent non-string writes for better error reporting [setters are not expected to return anything]
1.309 paf 1522: wcontext->write(*method_frame);
1523:
1524: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1525: // we don't need it StringOrValue result=wcontext->result();
1526:
1.330 misha 1527: RESTORE_CONTEXT
1.309 paf 1528: }
1.34 paf 1529: }
1.70 paf 1530:
1.162 parser 1531: /** @param intercept_string
1.116 paf 1532: - true:
1533: they want result=string value,
1534: possible object result goes to wcontext
1535: - false:
1536: they want any result[string|object]
1537: nothing goes to wcontext.
1.125 paf 1538: used in @c (expression) params evaluation
1.224 paf 1539:
1.334 misha 1540: using the fact it's either string_ or value_ result requested to speed up checkes
1.116 paf 1541: */
1.229 paf 1542: StringOrValue Request::process(Value& input_value, bool intercept_string) {
1.297 paf 1543: Junction* junction=input_value.get_junction();
1.307 paf 1544: if(junction) {
1545: if(junction->is_getter) { // is it a getter-junction?
1.329 misha 1546: VMethodFrame frame(*junction, method_frame/*caller*/);
1547: int param_count=frame.method_params_count();
1548:
1.331 misha 1549: if(param_count){
1550: if(junction->auto_name){ // default getter
1551: if(param_count==1){
1552: Value *param=new VString(*junction->auto_name);
1553: frame.store_params(¶m, 1);
1554: } else
1555: throw Exception(PARSER_RUNTIME,
1556: 0,
1557: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1558: } else
1.320 misha 1559: throw Exception(PARSER_RUNTIME,
1560: 0,
1.331 misha 1561: "getter method must have no parameters (has %d parameters)", param_count);
1562: } // no need for else frame.empty_params()
1.320 misha 1563:
1.307 paf 1564: frame.set_self(frame.junction.self);
1565:
1.330 misha 1566: SAVE_CONTEXT
1.307 paf 1567:
1568: rcontext=wcontext=&frame;
1569: method_frame=&frame;
1570:
1571: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1572: StringOrValue result=wcontext->result();
1573:
1.330 misha 1574: RESTORE_CONTEXT
1.307 paf 1575:
1576: return result;
1577: }
1578:
1579: if(junction->code) { // is it a code-junction?
1580: // process it
1581: StringOrValue result;
1.336 misha 1582:
1583: DEBUG_PRINT_STR("ja->\n")
1.238 paf 1584:
1.307 paf 1585: if(!junction->method_frame)
1.316 misha 1586: throw Exception(PARSER_RUNTIME,
1.240 paf 1587: 0,
1588: "junction used outside of context");
1589:
1.330 misha 1590: SAVE_CONTEXT
1.307 paf 1591:
1592: method_frame=junction->method_frame;
1593: rcontext=junction->rcontext;
1594:
1595: // for expression method params
1596: // wcontext is set 0
1597: // using the fact in decision "which wwrapper to use"
1598: bool using_code_frame=intercept_string && junction->wcontext;
1599: if(using_code_frame) {
1.318 misha 1600: // almost plain wwrapper about junction wcontext
1601:
1602: VCodeFrame local(*junction->wcontext);
1.307 paf 1603: wcontext=&local;
1604:
1605: // execute it
1606: recoursion_checked_execute(*junction->code);
1607:
1608: // CodeFrame soul:
1.318 misha 1609: result=wcontext->result();
1.307 paf 1610: } else {
1611: // plain wwrapper
1612: WWrapper local(0/*empty*/, wcontext);
1613: wcontext=&local;
1614:
1615: // execute it
1616: recoursion_checked_execute(*junction->code);
1617:
1618: result=wcontext->result();
1619: }
1620:
1.330 misha 1621: RESTORE_CONTEXT
1.207 paf 1622:
1.336 misha 1623: DEBUG_PRINT_STR("<-ja returned")
1624:
1.307 paf 1625: return result;
1626: }
1627:
1628: // it is then method-junction, do not explode it
1629: // just return it as we do for usual objects
1630: }
1631:
1632: return input_value;
1.85 paf 1633: }
1634:
1.332 misha 1635: void Request::process_write(Value& input_value) {
1636: Junction* junction=input_value.get_junction();
1637: if(junction) {
1638: if(junction->is_getter) { // is it a getter-junction?
1639: VMethodFrame frame(*junction, method_frame/*caller*/);
1640: int param_count=frame.method_params_count();
1641:
1642: if(param_count){
1643: if(junction->auto_name){ // default getter
1644: if(param_count==1){
1645: Value *param=new VString(*junction->auto_name);
1646: frame.store_params(¶m, 1);
1647: } else
1648: throw Exception(PARSER_RUNTIME,
1649: 0,
1650: "default getter method can't have more then 1 parameter (has %d parameters)", param_count);
1651: } else
1652: throw Exception(PARSER_RUNTIME,
1653: 0,
1654: "getter method must have no parameters (has %d parameters)", param_count);
1655: } // no need for else frame.empty_params()
1656:
1657: frame.set_self(frame.junction.self);
1658:
1659: SAVE_CONTEXT
1660:
1661: rcontext=wcontext=&frame;
1662: method_frame=&frame;
1663:
1664: recoursion_checked_execute(*frame.junction.method->parser_code); // parser code, execute it
1665:
1666: RESTORE_CONTEXT
1667:
1668: write_pass_lang(frame.result());
1669: return;
1670: }
1671:
1672: if(junction->code) { // is it a code-junction?
1673: // process it
1.336 misha 1674:
1675: DEBUG_PRINT_STR("ja->\n")
1676:
1.332 misha 1677: if(!junction->method_frame)
1678: throw Exception(PARSER_RUNTIME,
1679: 0,
1680: "junction used outside of context");
1681:
1682: SAVE_CONTEXT
1683:
1684: method_frame=junction->method_frame;
1685: rcontext=junction->rcontext;
1686:
1687: // for expression method params
1688: // wcontext is set 0
1689: // using the fact in decision "which wwrapper to use"
1690: #ifdef OPTIMIZE_CALL
1691: if(wcontext==junction->wcontext){
1692: // no wrappers for wcontext
1693: recoursion_checked_execute(*junction->code);
1694: RESTORE_CONTEXT
1695:
1696: } else
1697: #endif
1698: if(junction->wcontext) {
1699: // almost plain wwrapper about junction wcontext
1700: VCodeFrame local(*junction->wcontext);
1701: wcontext=&local;
1702:
1703: // execute it
1704: recoursion_checked_execute(*junction->code);
1705: RESTORE_CONTEXT
1706: write_pass_lang(local.result());
1707: } else {
1708: // plain wwrapper
1709: WWrapper local(0/*empty*/, wcontext);
1710: wcontext=&local;
1711:
1712: // execute it
1713: recoursion_checked_execute(*junction->code);
1714: RESTORE_CONTEXT
1715: write_pass_lang(local.result());
1716: }
1.336 misha 1717:
1718: DEBUG_PRINT_STR("<-ja returned")
1719:
1.332 misha 1720: return;
1721: }
1722:
1723: // it is then method-junction, do not explode it
1724: // just return it as we do for usual objects
1725: }
1726:
1727: write_pass_lang(input_value);
1728: }
1729:
1.298 paf 1730: StringOrValue Request::execute_method(VMethodFrame& amethod_frame, const Method& method) {
1.330 misha 1731: SAVE_CONTEXT
1.99 paf 1732:
1733: // initialize contexts
1.286 paf 1734: rcontext=wcontext=method_frame=&amethod_frame;
1.99 paf 1735:
1736: // execute!
1737: execute(*method.parser_code);
1738:
1739: // result
1.298 paf 1740: StringOrValue result=wcontext->result();
1.208 paf 1741:
1.330 misha 1742: RESTORE_CONTEXT
1.242 paf 1743:
1744: // return
1745: return result;
1.208 paf 1746: }
1747:
1.297 paf 1748: const String* Request::execute_method(Value& aself,
1.329 misha 1749: const Method& method, Value* optional_param,
1750: bool do_return_string) {
1.317 misha 1751:
1.330 misha 1752: SAVE_CONTEXT
1.208 paf 1753:
1.307 paf 1754: Junction local_junction(aself, &method);
1.321 misha 1755: VMethodFrame local_frame(local_junction, method_frame/*caller*/);
1.329 misha 1756: if(optional_param && local_frame.method_params_count()>0) {
1757: local_frame.store_params(&optional_param, 1);
1.330 misha 1758: } else {
1759: local_frame.empty_params();
1.242 paf 1760: }
1.285 paf 1761: local_frame.set_self(aself);
1.257 paf 1762: rcontext=wcontext=method_frame=&local_frame;
1.246 paf 1763:
1764: // prevent non-string writes for better error reporting
1.297 paf 1765: if(do_return_string)
1.246 paf 1766: wcontext->write(local_frame);
1.208 paf 1767:
1768: // execute!
1769: execute(*method.parser_code);
1770:
1771: // result
1.297 paf 1772: const String* result=0;
1773: if(do_return_string)
1774: result=&wcontext->result().as_string();
1.99 paf 1775:
1.330 misha 1776: RESTORE_CONTEXT
1.297 paf 1777:
1778: return result;
1.242 paf 1779: }
1780:
1.297 paf 1781: Request::Execute_nonvirtual_method_result
1782: Request::execute_nonvirtual_method(VStateless_class& aclass,
1.330 misha 1783: const String& method_name,
1784: VString* optional_param,
1785: bool do_return_string) {
1.297 paf 1786: Execute_nonvirtual_method_result result;
1787: result.method=aclass.get_method(method_name);
1788: if(result.method)
1.317 misha 1789: result.string=execute_method(aclass, *result.method, optional_param, do_return_string);
1.297 paf 1790: return result;
1.99 paf 1791: }
1792:
1.297 paf 1793: const String* Request::execute_virtual_method(Value& aself,
1.330 misha 1794: const String& method_name) {
1.297 paf 1795: if(Value* value=aself.get_element(method_name, aself, false))
1796: if(Junction* junction=value->get_junction())
1797: if(const Method *method=junction->method)
1798: return execute_method(aself, *method, 0/*no params*/, true);
1.188 parser 1799:
1.176 parser 1800: return 0;
1801: }