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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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 #ifndef V8_DEBUG_DEBUG_EVALUATE_H_ | 5 #ifndef V8_DEBUG_DEBUG_EVALUATE_H_ |
6 #define V8_DEBUG_DEBUG_EVALUATE_H_ | 6 #define V8_DEBUG_DEBUG_EVALUATE_H_ |
7 | 7 |
8 #include "src/frames.h" | 8 #include "src/frames.h" |
9 #include "src/objects.h" | 9 #include "src/objects.h" |
10 | 10 |
11 namespace v8 { | 11 namespace v8 { |
12 namespace internal { | 12 namespace internal { |
13 | 13 |
14 class DebugEvaluate : public AllStatic { | 14 class DebugEvaluate : public AllStatic { |
15 public: | 15 public: |
16 static MaybeHandle<Object> Global(Isolate* isolate, Handle<String> source, | 16 static MaybeHandle<Object> Global(Isolate* isolate, Handle<String> source); |
17 bool disable_break, | |
18 Handle<HeapObject> context_extension); | |
19 | 17 |
20 // Evaluate a piece of JavaScript in the context of a stack frame for | 18 // Evaluate a piece of JavaScript in the context of a stack frame for |
21 // debugging. Things that need special attention are: | 19 // debugging. Things that need special attention are: |
22 // - Parameters and stack-allocated locals need to be materialized. Altered | 20 // - Parameters and stack-allocated locals need to be materialized. Altered |
23 // values need to be written back to the stack afterwards. | 21 // values need to be written back to the stack afterwards. |
24 // - The arguments object needs to materialized. | 22 // - The arguments object needs to materialized. |
25 static MaybeHandle<Object> Local(Isolate* isolate, StackFrame::Id frame_id, | 23 static MaybeHandle<Object> Local(Isolate* isolate, StackFrame::Id frame_id, |
26 int inlined_jsframe_index, | 24 int inlined_jsframe_index, |
27 Handle<String> source, bool disable_break, | 25 Handle<String> source); |
28 Handle<HeapObject> context_extension); | |
29 | 26 |
30 private: | 27 private: |
31 // This class builds a context chain for evaluation of expressions | 28 // This class builds a context chain for evaluation of expressions |
32 // in debugger. | 29 // in debugger. |
33 // The scope chain leading up to a breakpoint where evaluation occurs | 30 // The scope chain leading up to a breakpoint where evaluation occurs |
34 // looks like: | 31 // looks like: |
35 // - [a mix of with, catch and block scopes] | 32 // - [a mix of with, catch and block scopes] |
36 // - [function stack + context] | 33 // - [function stack + context] |
37 // - [outer context] | 34 // - [outer context] |
38 // The builder materializes all stack variables into properties of objects; | 35 // The builder materializes all stack variables into properties of objects; |
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78 Handle<Context> evaluation_context_; | 75 Handle<Context> evaluation_context_; |
79 List<ContextChainElement> context_chain_; | 76 List<ContextChainElement> context_chain_; |
80 Isolate* isolate_; | 77 Isolate* isolate_; |
81 JavaScriptFrame* frame_; | 78 JavaScriptFrame* frame_; |
82 int inlined_jsframe_index_; | 79 int inlined_jsframe_index_; |
83 }; | 80 }; |
84 | 81 |
85 static MaybeHandle<Object> Evaluate(Isolate* isolate, | 82 static MaybeHandle<Object> Evaluate(Isolate* isolate, |
86 Handle<SharedFunctionInfo> outer_info, | 83 Handle<SharedFunctionInfo> outer_info, |
87 Handle<Context> context, | 84 Handle<Context> context, |
88 Handle<HeapObject> context_extension, | |
89 Handle<Object> receiver, | 85 Handle<Object> receiver, |
90 Handle<String> source); | 86 Handle<String> source); |
91 }; | 87 }; |
92 | 88 |
93 | 89 |
94 } // namespace internal | 90 } // namespace internal |
95 } // namespace v8 | 91 } // namespace v8 |
96 | 92 |
97 #endif // V8_DEBUG_DEBUG_EVALUATE_H_ | 93 #endif // V8_DEBUG_DEBUG_EVALUATE_H_ |
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