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1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 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 #include "src/builtins/builtins-promise-gen.h" | 5 #include "src/builtins/builtins-promise-gen.h" |
6 | 6 |
7 #include "src/builtins/builtins-constructor-gen.h" | 7 #include "src/builtins/builtins-constructor-gen.h" |
8 #include "src/builtins/builtins-utils-gen.h" | 8 #include "src/builtins/builtins-utils-gen.h" |
9 #include "src/builtins/builtins.h" | 9 #include "src/builtins/builtins.h" |
10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
11 #include "src/code-stub-assembler.h" | 11 #include "src/code-stub-assembler.h" |
12 #include "src/objects-inl.h" | 12 #include "src/objects-inl.h" |
13 | 13 |
14 namespace v8 { | 14 namespace v8 { |
15 namespace internal { | 15 namespace internal { |
16 | 16 |
17 using compiler::Node; | 17 using compiler::Node; |
18 | 18 |
19 Node* PromiseBuiltinsAssembler::AllocateJSPromise(Node* context) { | 19 Node* PromiseBuiltinsAssembler::AllocateJSPromise(Node* context) { |
20 // Does this need to change to account for new internal fields? | |
20 Node* const native_context = LoadNativeContext(context); | 21 Node* const native_context = LoadNativeContext(context); |
21 Node* const promise_fun = | 22 Node* const promise_fun = |
22 LoadContextElement(native_context, Context::PROMISE_FUNCTION_INDEX); | 23 LoadContextElement(native_context, Context::PROMISE_FUNCTION_INDEX); |
23 Node* const initial_map = | 24 Node* const initial_map = |
24 LoadObjectField(promise_fun, JSFunction::kPrototypeOrInitialMapOffset); | 25 LoadObjectField(promise_fun, JSFunction::kPrototypeOrInitialMapOffset); |
25 Node* const instance = AllocateJSObjectFromMap(initial_map); | 26 Node* const instance = AllocateJSObjectFromMap(initial_map); |
26 return instance; | 27 return instance; |
27 } | 28 } |
28 | 29 |
29 void PromiseBuiltinsAssembler::PromiseInit(Node* promise) { | 30 void PromiseBuiltinsAssembler::PromiseInit(Node* promise) { |
30 StoreObjectFieldNoWriteBarrier(promise, JSPromise::kStatusOffset, | 31 StoreObjectFieldNoWriteBarrier(promise, JSPromise::kStatusOffset, |
31 SmiConstant(v8::Promise::kPending)); | 32 SmiConstant(v8::Promise::kPending)); |
32 StoreObjectFieldNoWriteBarrier(promise, JSPromise::kFlagsOffset, | 33 StoreObjectFieldNoWriteBarrier(promise, JSPromise::kFlagsOffset, |
33 SmiConstant(0)); | 34 SmiConstant(0)); |
35 for (int i = 0; i < v8::Promise::kEmbedderFieldCount; i++) { | |
36 int offset = JSPromise::kSize + i * kPointerSize; | |
37 StoreObjectFieldNoWriteBarrier(promise, offset, SmiConstant(Smi::kZero)); | |
38 } | |
34 } | 39 } |
35 | 40 |
36 Node* PromiseBuiltinsAssembler::AllocateAndInitJSPromise(Node* context) { | 41 Node* PromiseBuiltinsAssembler::AllocateAndInitJSPromise(Node* context) { |
37 return AllocateAndInitJSPromise(context, UndefinedConstant()); | 42 return AllocateAndInitJSPromise(context, UndefinedConstant()); |
38 } | 43 } |
39 | 44 |
40 Node* PromiseBuiltinsAssembler::AllocateAndInitJSPromise(Node* context, | 45 Node* PromiseBuiltinsAssembler::AllocateAndInitJSPromise(Node* context, |
41 Node* parent) { | 46 Node* parent) { |
42 Node* const instance = AllocateJSPromise(context); | 47 Node* const instance = AllocateJSPromise(context); |
43 PromiseInit(instance); | 48 PromiseInit(instance); |
44 | 49 |
45 Label out(this); | 50 Label out(this); |
46 GotoIfNot(IsPromiseHookEnabledOrDebugIsActive(), &out); | 51 GotoIfNot(IsPromiseHookEnabledOrDebugIsActive(), &out); |
47 CallRuntime(Runtime::kPromiseHookInit, context, instance, parent); | 52 CallRuntime(Runtime::kPromiseHookInit, context, instance, parent); |
48 Goto(&out); | 53 Goto(&out); |
49 | 54 |
50 BIND(&out); | 55 BIND(&out); |
51 return instance; | 56 return instance; |
52 } | 57 } |
53 | 58 |
54 Node* PromiseBuiltinsAssembler::AllocateAndSetJSPromise(Node* context, | 59 Node* PromiseBuiltinsAssembler::AllocateAndSetJSPromise(Node* context, |
gsathya
2017/05/22 18:38:33
This needs to be updated as well
| |
55 Node* status, | 60 Node* status, |
56 Node* result) { | 61 Node* result) { |
57 CSA_ASSERT(this, TaggedIsSmi(status)); | 62 CSA_ASSERT(this, TaggedIsSmi(status)); |
58 | 63 |
59 Node* const instance = AllocateJSPromise(context); | 64 Node* const instance = AllocateJSPromise(context); |
60 | 65 |
61 StoreObjectFieldNoWriteBarrier(instance, JSPromise::kStatusOffset, status); | 66 StoreObjectFieldNoWriteBarrier(instance, JSPromise::kStatusOffset, status); |
62 StoreObjectFieldNoWriteBarrier(instance, JSPromise::kResultOffset, result); | 67 StoreObjectFieldNoWriteBarrier(instance, JSPromise::kResultOffset, result); |
63 StoreObjectFieldNoWriteBarrier(instance, JSPromise::kFlagsOffset, | 68 StoreObjectFieldNoWriteBarrier(instance, JSPromise::kFlagsOffset, |
64 SmiConstant(0)); | 69 SmiConstant(0)); |
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1794 CSA_ASSERT(this, HasInstanceType(result_promise, JS_PROMISE_TYPE)); | 1799 CSA_ASSERT(this, HasInstanceType(result_promise, JS_PROMISE_TYPE)); |
1795 | 1800 |
1796 InternalPerformPromiseThen(context, promise, resolve_reaction, | 1801 InternalPerformPromiseThen(context, promise, resolve_reaction, |
1797 reject_reaction, result_promise, | 1802 reject_reaction, result_promise, |
1798 UndefinedConstant(), UndefinedConstant()); | 1803 UndefinedConstant(), UndefinedConstant()); |
1799 Return(result_promise); | 1804 Return(result_promise); |
1800 } | 1805 } |
1801 | 1806 |
1802 } // namespace internal | 1807 } // namespace internal |
1803 } // namespace v8 | 1808 } // namespace v8 |
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