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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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_BOOTSTRAPPER_H_ | 5 #ifndef V8_BOOTSTRAPPER_H_ |
6 #define V8_BOOTSTRAPPER_H_ | 6 #define V8_BOOTSTRAPPER_H_ |
7 | 7 |
8 #include "src/factory.h" | 8 #include "src/factory.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
11 namespace internal { | 11 namespace internal { |
12 | 12 |
13 // A SourceCodeCache uses a FixedArray to store pairs of | 13 // A SourceCodeCache uses a FixedArray to store pairs of |
14 // (AsciiString*, JSFunction*), mapping names of native code files | 14 // (AsciiString*, JSFunction*), mapping names of native code files |
15 // (runtime.js, etc.) to precompiled functions. Instead of mapping | 15 // (runtime.js, etc.) to precompiled functions. Instead of mapping |
16 // names to functions it might make sense to let the JS2C tool | 16 // names to functions it might make sense to let the JS2C tool |
17 // generate an index for each native JS file. | 17 // generate an index for each native JS file. |
18 class SourceCodeCache V8_FINAL BASE_EMBEDDED { | 18 class SourceCodeCache FINAL BASE_EMBEDDED { |
19 public: | 19 public: |
20 explicit SourceCodeCache(Script::Type type): type_(type), cache_(NULL) { } | 20 explicit SourceCodeCache(Script::Type type): type_(type), cache_(NULL) { } |
21 | 21 |
22 void Initialize(Isolate* isolate, bool create_heap_objects) { | 22 void Initialize(Isolate* isolate, bool create_heap_objects) { |
23 cache_ = create_heap_objects ? isolate->heap()->empty_fixed_array() : NULL; | 23 cache_ = create_heap_objects ? isolate->heap()->empty_fixed_array() : NULL; |
24 } | 24 } |
25 | 25 |
26 void Iterate(ObjectVisitor* v) { | 26 void Iterate(ObjectVisitor* v) { |
27 v->VisitPointer(BitCast<Object**, FixedArray**>(&cache_)); | 27 v->VisitPointer(BitCast<Object**, FixedArray**>(&cache_)); |
28 } | 28 } |
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57 | 57 |
58 private: | 58 private: |
59 Script::Type type_; | 59 Script::Type type_; |
60 FixedArray* cache_; | 60 FixedArray* cache_; |
61 DISALLOW_COPY_AND_ASSIGN(SourceCodeCache); | 61 DISALLOW_COPY_AND_ASSIGN(SourceCodeCache); |
62 }; | 62 }; |
63 | 63 |
64 | 64 |
65 // The Boostrapper is the public interface for creating a JavaScript global | 65 // The Boostrapper is the public interface for creating a JavaScript global |
66 // context. | 66 // context. |
67 class Bootstrapper V8_FINAL { | 67 class Bootstrapper FINAL { |
68 public: | 68 public: |
69 static void InitializeOncePerProcess(); | 69 static void InitializeOncePerProcess(); |
70 static void TearDownExtensions(); | 70 static void TearDownExtensions(); |
71 | 71 |
72 // Requires: Heap::SetUp has been called. | 72 // Requires: Heap::SetUp has been called. |
73 void Initialize(bool create_heap_objects); | 73 void Initialize(bool create_heap_objects); |
74 void TearDown(); | 74 void TearDown(); |
75 | 75 |
76 // Creates a JavaScript Global Context with initial object graph. | 76 // Creates a JavaScript Global Context with initial object graph. |
77 // The returned value is a global handle casted to V8Environment*. | 77 // The returned value is a global handle casted to V8Environment*. |
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127 static v8::Extension* free_buffer_extension_; | 127 static v8::Extension* free_buffer_extension_; |
128 static v8::Extension* gc_extension_; | 128 static v8::Extension* gc_extension_; |
129 static v8::Extension* externalize_string_extension_; | 129 static v8::Extension* externalize_string_extension_; |
130 static v8::Extension* statistics_extension_; | 130 static v8::Extension* statistics_extension_; |
131 static v8::Extension* trigger_failure_extension_; | 131 static v8::Extension* trigger_failure_extension_; |
132 | 132 |
133 DISALLOW_COPY_AND_ASSIGN(Bootstrapper); | 133 DISALLOW_COPY_AND_ASSIGN(Bootstrapper); |
134 }; | 134 }; |
135 | 135 |
136 | 136 |
137 class BootstrapperActive V8_FINAL BASE_EMBEDDED { | 137 class BootstrapperActive FINAL BASE_EMBEDDED { |
138 public: | 138 public: |
139 explicit BootstrapperActive(Bootstrapper* bootstrapper) | 139 explicit BootstrapperActive(Bootstrapper* bootstrapper) |
140 : bootstrapper_(bootstrapper) { | 140 : bootstrapper_(bootstrapper) { |
141 ++bootstrapper_->nesting_; | 141 ++bootstrapper_->nesting_; |
142 } | 142 } |
143 | 143 |
144 ~BootstrapperActive() { | 144 ~BootstrapperActive() { |
145 --bootstrapper_->nesting_; | 145 --bootstrapper_->nesting_; |
146 } | 146 } |
147 | 147 |
148 private: | 148 private: |
149 Bootstrapper* bootstrapper_; | 149 Bootstrapper* bootstrapper_; |
150 | 150 |
151 DISALLOW_COPY_AND_ASSIGN(BootstrapperActive); | 151 DISALLOW_COPY_AND_ASSIGN(BootstrapperActive); |
152 }; | 152 }; |
153 | 153 |
154 | 154 |
155 class NativesExternalStringResource V8_FINAL | 155 class NativesExternalStringResource FINAL |
156 : public v8::String::ExternalAsciiStringResource { | 156 : public v8::String::ExternalAsciiStringResource { |
157 public: | 157 public: |
158 NativesExternalStringResource(Bootstrapper* bootstrapper, | 158 NativesExternalStringResource(Bootstrapper* bootstrapper, |
159 const char* source, | 159 const char* source, |
160 size_t length); | 160 size_t length); |
161 virtual const char* data() const V8_OVERRIDE { return data_; } | 161 virtual const char* data() const OVERRIDE { return data_; } |
162 virtual size_t length() const V8_OVERRIDE { return length_; } | 162 virtual size_t length() const OVERRIDE { return length_; } |
163 | 163 |
164 private: | 164 private: |
165 const char* data_; | 165 const char* data_; |
166 size_t length_; | 166 size_t length_; |
167 }; | 167 }; |
168 | 168 |
169 }} // namespace v8::internal | 169 }} // namespace v8::internal |
170 | 170 |
171 #endif // V8_BOOTSTRAPPER_H_ | 171 #endif // V8_BOOTSTRAPPER_H_ |
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