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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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417 // Slots do not appear directly in the AST. | 417 // Slots do not appear directly in the AST. |
418 UNREACHABLE(); | 418 UNREACHABLE(); |
419 } | 419 } |
420 | 420 |
421 | 421 |
422 void FastCodeGenerator::VisitLiteral(Literal* expr) { | 422 void FastCodeGenerator::VisitLiteral(Literal* expr) { |
423 Move(expr->context(), expr); | 423 Move(expr->context(), expr); |
424 } | 424 } |
425 | 425 |
426 | 426 |
| 427 void FastCodeGenerator::VisitAssignment(Assignment* expr) { |
| 428 Comment cmnt(masm_, "[ Assignment"); |
| 429 ASSERT(expr->op() == Token::ASSIGN || expr->op() == Token::INIT_VAR); |
| 430 |
| 431 // Record source code position of the (possible) IC call. |
| 432 SetSourcePosition(expr->position()); |
| 433 |
| 434 Expression* rhs = expr->value(); |
| 435 // Left-hand side can only be a property, a global or a (parameter or |
| 436 // local) slot. |
| 437 Variable* var = expr->target()->AsVariableProxy()->AsVariable(); |
| 438 Property* prop = expr->target()->AsProperty(); |
| 439 if (var != NULL) { |
| 440 Visit(rhs); |
| 441 ASSERT_EQ(Expression::kValue, rhs->context()); |
| 442 EmitVariableAssignment(expr->context(), var); |
| 443 } else if (prop != NULL) { |
| 444 // Assignment to a property. |
| 445 Visit(prop->obj()); |
| 446 ASSERT_EQ(Expression::kValue, prop->obj()->context()); |
| 447 // Use the expression context of the key subexpression to detect whether |
| 448 // we have decided to us a named or keyed IC. |
| 449 if (prop->key()->context() == Expression::kUninitialized) { |
| 450 ASSERT(prop->key()->AsLiteral() != NULL); |
| 451 Visit(rhs); |
| 452 ASSERT_EQ(Expression::kValue, rhs->context()); |
| 453 EmitNamedPropertyAssignment(expr->context(), |
| 454 prop->key()->AsLiteral()->handle()); |
| 455 } else { |
| 456 Visit(prop->key()); |
| 457 ASSERT_EQ(Expression::kValue, prop->key()->context()); |
| 458 Visit(rhs); |
| 459 ASSERT_EQ(Expression::kValue, rhs->context()); |
| 460 EmitKeyedPropertyAssignment(expr->context()); |
| 461 } |
| 462 } else { |
| 463 UNREACHABLE(); |
| 464 } |
| 465 } |
| 466 |
| 467 |
427 void FastCodeGenerator::VisitCatchExtensionObject(CatchExtensionObject* expr) { | 468 void FastCodeGenerator::VisitCatchExtensionObject(CatchExtensionObject* expr) { |
428 UNREACHABLE(); | 469 UNREACHABLE(); |
429 } | 470 } |
430 | 471 |
431 | 472 |
432 void FastCodeGenerator::VisitThrow(Throw* expr) { | 473 void FastCodeGenerator::VisitThrow(Throw* expr) { |
433 UNREACHABLE(); | 474 UNREACHABLE(); |
434 } | 475 } |
435 | 476 |
436 | 477 |
437 void FastCodeGenerator::VisitCountOperation(CountOperation* expr) { | 478 void FastCodeGenerator::VisitCountOperation(CountOperation* expr) { |
438 UNREACHABLE(); | 479 UNREACHABLE(); |
439 } | 480 } |
440 | 481 |
441 | 482 |
442 void FastCodeGenerator::VisitCompareOperation(CompareOperation* expr) { | 483 void FastCodeGenerator::VisitCompareOperation(CompareOperation* expr) { |
443 UNREACHABLE(); | 484 UNREACHABLE(); |
444 } | 485 } |
445 | 486 |
446 | 487 |
447 void FastCodeGenerator::VisitThisFunction(ThisFunction* expr) { | 488 void FastCodeGenerator::VisitThisFunction(ThisFunction* expr) { |
448 UNREACHABLE(); | 489 UNREACHABLE(); |
449 } | 490 } |
450 | 491 |
451 | 492 |
452 #undef __ | 493 #undef __ |
453 | 494 |
454 | 495 |
455 } } // namespace v8::internal | 496 } } // namespace v8::internal |
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