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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS | 5 #if V8_TARGET_ARCH_MIPS |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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3063 VisitForStackValue(property->obj()); | 3063 VisitForStackValue(property->obj()); |
3064 VisitForStackValue(property->key()); | 3064 VisitForStackValue(property->key()); |
3065 CallRuntimeWithOperands(is_strict(language_mode()) | 3065 CallRuntimeWithOperands(is_strict(language_mode()) |
3066 ? Runtime::kDeleteProperty_Strict | 3066 ? Runtime::kDeleteProperty_Strict |
3067 : Runtime::kDeleteProperty_Sloppy); | 3067 : Runtime::kDeleteProperty_Sloppy); |
3068 context()->Plug(v0); | 3068 context()->Plug(v0); |
3069 } else if (proxy != NULL) { | 3069 } else if (proxy != NULL) { |
3070 Variable* var = proxy->var(); | 3070 Variable* var = proxy->var(); |
3071 // Delete of an unqualified identifier is disallowed in strict mode but | 3071 // Delete of an unqualified identifier is disallowed in strict mode but |
3072 // "delete this" is allowed. | 3072 // "delete this" is allowed. |
3073 bool is_this = var->HasThisName(isolate()); | 3073 bool is_this = var->is_this(); |
3074 DCHECK(is_sloppy(language_mode()) || is_this); | 3074 DCHECK(is_sloppy(language_mode()) || is_this); |
3075 if (var->IsUnallocatedOrGlobalSlot()) { | 3075 if (var->IsUnallocatedOrGlobalSlot()) { |
3076 __ LoadGlobalObject(a2); | 3076 __ LoadGlobalObject(a2); |
3077 __ li(a1, Operand(var->name())); | 3077 __ li(a1, Operand(var->name())); |
3078 __ Push(a2, a1); | 3078 __ Push(a2, a1); |
3079 __ CallRuntime(Runtime::kDeleteProperty_Sloppy); | 3079 __ CallRuntime(Runtime::kDeleteProperty_Sloppy); |
3080 context()->Plug(v0); | 3080 context()->Plug(v0); |
3081 } else if (var->IsStackAllocated() || var->IsContextSlot()) { | 3081 } else if (var->IsStackAllocated() || var->IsContextSlot()) { |
3082 // Result of deleting non-global, non-dynamic variables is false. | 3082 // Result of deleting non-global, non-dynamic variables is false. |
3083 // The subexpression does not have side effects. | 3083 // The subexpression does not have side effects. |
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3779 reinterpret_cast<uint32_t>( | 3779 reinterpret_cast<uint32_t>( |
3780 isolate->builtins()->OnStackReplacement()->entry())); | 3780 isolate->builtins()->OnStackReplacement()->entry())); |
3781 return ON_STACK_REPLACEMENT; | 3781 return ON_STACK_REPLACEMENT; |
3782 } | 3782 } |
3783 | 3783 |
3784 | 3784 |
3785 } // namespace internal | 3785 } // namespace internal |
3786 } // namespace v8 | 3786 } // namespace v8 |
3787 | 3787 |
3788 #endif // V8_TARGET_ARCH_MIPS | 3788 #endif // V8_TARGET_ARCH_MIPS |
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