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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #include "src/parsing/parse-info.h" | |
6 | |
7 #include "src/ast/ast-value-factory.h" | |
8 #include "src/ast/ast.h" | |
9 | |
10 namespace v8 { | |
11 namespace internal { | |
12 | |
13 ParseInfo::ParseInfo(Zone* zone) | |
14 : zone_(zone), | |
15 flags_(0), | |
16 source_stream_(nullptr), | |
17 source_stream_encoding_(ScriptCompiler::StreamedSource::ONE_BYTE), | |
18 character_stream_(nullptr), | |
19 extension_(nullptr), | |
20 compile_options_(ScriptCompiler::kNoCompileOptions), | |
21 script_scope_(nullptr), | |
22 unicode_cache_(nullptr), | |
23 stack_limit_(0), | |
24 hash_seed_(0), | |
25 compiler_hints_(0), | |
26 start_position_(0), | |
27 end_position_(0), | |
28 isolate_(nullptr), | |
29 cached_data_(nullptr), | |
30 ast_value_factory_(nullptr), | |
31 function_name_(nullptr), | |
32 literal_(nullptr) {} | |
33 | |
34 ParseInfo::ParseInfo(Zone* zone, Handle<JSFunction> function) | |
35 : ParseInfo(zone, Handle<SharedFunctionInfo>(function->shared())) { | |
36 set_context(Handle<Context>(function->context())); | |
37 } | |
38 | |
39 ParseInfo::ParseInfo(Zone* zone, Handle<SharedFunctionInfo> shared) | |
40 : ParseInfo(zone) { | |
41 isolate_ = shared->GetIsolate(); | |
42 | |
43 set_lazy(); | |
44 set_hash_seed(isolate_->heap()->HashSeed()); | |
45 set_is_named_expression(shared->is_named_expression()); | |
46 set_calls_eval(shared->scope_info()->CallsEval()); | |
47 set_compiler_hints(shared->compiler_hints()); | |
48 set_start_position(shared->start_position()); | |
49 set_end_position(shared->end_position()); | |
50 set_stack_limit(isolate_->stack_guard()->real_climit()); | |
51 set_unicode_cache(isolate_->unicode_cache()); | |
52 set_language_mode(shared->language_mode()); | |
53 set_shared_info(shared); | |
54 | |
55 Handle<Script> script(Script::cast(shared->script())); | |
56 set_script(script); | |
57 if (!script.is_null() && script->type() == Script::TYPE_NATIVE) { | |
58 set_native(); | |
59 } | |
60 } | |
61 | |
62 ParseInfo::ParseInfo(Zone* zone, Handle<Script> script) : ParseInfo(zone) { | |
63 isolate_ = script->GetIsolate(); | |
64 | |
65 set_hash_seed(isolate_->heap()->HashSeed()); | |
66 set_stack_limit(isolate_->stack_guard()->real_climit()); | |
67 set_unicode_cache(isolate_->unicode_cache()); | |
68 set_script(script); | |
69 | |
70 if (script->type() == Script::TYPE_NATIVE) { | |
71 set_native(); | |
72 } | |
73 } | |
74 | |
75 ParseInfo::~ParseInfo() { | |
marja
2016/08/22 09:37:41
De-inlined
| |
76 if (ast_value_factory_owned()) { | |
77 delete ast_value_factory_; | |
78 set_ast_value_factory_owned(false); | |
79 } | |
80 ast_value_factory_ = nullptr; | |
81 } | |
82 | |
83 DeclarationScope* ParseInfo::scope() const { return literal()->scope(); } | |
marja
2016/08/22 09:37:41
De-inlined
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84 | |
85 bool ParseInfo::is_declaration() const { | |
86 return (compiler_hints_ & (1 << SharedFunctionInfo::kIsDeclaration)) != 0; | |
87 } | |
88 | |
89 bool ParseInfo::is_arrow() const { | |
90 return (compiler_hints_ & (1 << SharedFunctionInfo::kIsArrow)) != 0; | |
91 } | |
92 | |
93 bool ParseInfo::is_async() const { | |
94 return (compiler_hints_ & (1 << SharedFunctionInfo::kIsAsyncFunction)) != 0; | |
95 } | |
96 | |
97 bool ParseInfo::is_default_constructor() const { | |
98 return (compiler_hints_ & (1 << SharedFunctionInfo::kIsDefaultConstructor)) != | |
99 0; | |
100 } | |
101 | |
102 FunctionKind ParseInfo::function_kind() const { | |
103 return SharedFunctionInfo::FunctionKindBits::decode(compiler_hints_); | |
104 } | |
105 | |
106 #ifdef DEBUG | |
107 bool ParseInfo::script_is_native() const { | |
marja
2016/08/22 09:37:41
De-inlined
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108 return script_->type() == Script::TYPE_NATIVE; | |
109 } | |
110 #endif // DEBUG | |
111 | |
112 } // namespace internal | |
113 } // namespace v8 | |
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