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Side by Side Diff: src/handles.h

Issue 173348: Api inlining. Made some core functionality available in the api and... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 11 years, 4 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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114 ~HandleScope() { 114 ~HandleScope() {
115 Leave(&previous_); 115 Leave(&previous_);
116 } 116 }
117 117
118 // Counts the number of allocated handles. 118 // Counts the number of allocated handles.
119 static int NumberOfHandles(); 119 static int NumberOfHandles();
120 120
121 // Creates a new handle with the given value. 121 // Creates a new handle with the given value.
122 template <typename T> 122 template <typename T>
123 static inline T** CreateHandle(T* value) { 123 static inline T** CreateHandle(T* value) {
124 void** cur = current_.next; 124 internal::Object** cur = current_.next;
125 if (cur == current_.limit) cur = Extend(); 125 if (cur == current_.limit) cur = Extend();
126 // Update the current next field, set the value in the created 126 // Update the current next field, set the value in the created
127 // handle, and return the result. 127 // handle, and return the result.
128 ASSERT(cur < current_.limit); 128 ASSERT(cur < current_.limit);
129 current_.next = cur + 1; 129 current_.next = cur + 1;
130 130
131 T** result = reinterpret_cast<T**>(cur); 131 T** result = reinterpret_cast<T**>(cur);
132 *result = value; 132 *result = value;
133 return result; 133 return result;
134 } 134 }
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157 if (current_.extensions > 0) { 157 if (current_.extensions > 0) {
158 DeleteExtensions(); 158 DeleteExtensions();
159 } 159 }
160 current_ = *previous; 160 current_ = *previous;
161 #ifdef DEBUG 161 #ifdef DEBUG
162 ZapRange(current_.next, current_.limit); 162 ZapRange(current_.next, current_.limit);
163 #endif 163 #endif
164 } 164 }
165 165
166 // Extend the handle scope making room for more handles. 166 // Extend the handle scope making room for more handles.
167 static void** Extend(); 167 static internal::Object** Extend();
168 168
169 // Deallocates any extensions used by the current scope. 169 // Deallocates any extensions used by the current scope.
170 static void DeleteExtensions(); 170 static void DeleteExtensions();
171 171
172 // Zaps the handles in the half-open interval [start, end). 172 // Zaps the handles in the half-open interval [start, end).
173 static void ZapRange(void** start, void** end); 173 static void ZapRange(internal::Object** start, internal::Object** end);
174 174
175 friend class v8::HandleScope; 175 friend class v8::HandleScope;
176 friend class v8::ImplementationUtilities; 176 friend class v8::ImplementationUtilities;
177 }; 177 };
178 178
179 179
180 // ---------------------------------------------------------------------------- 180 // ----------------------------------------------------------------------------
181 // Handle operations. 181 // Handle operations.
182 // They might invoke garbage collection. The result is an handle to 182 // They might invoke garbage collection. The result is an handle to
183 // an object of expected type, or the handle is an error if running out 183 // an object of expected type, or the handle is an error if running out
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346 private: 346 private:
347 bool has_been_transformed_; // Tells whether the object has been transformed. 347 bool has_been_transformed_; // Tells whether the object has been transformed.
348 int unused_property_fields_; // Captures the unused number of field. 348 int unused_property_fields_; // Captures the unused number of field.
349 Handle<JSObject> object_; // The object being optimized. 349 Handle<JSObject> object_; // The object being optimized.
350 }; 350 };
351 351
352 352
353 } } // namespace v8::internal 353 } } // namespace v8::internal
354 354
355 #endif // V8_HANDLES_H_ 355 #endif // V8_HANDLES_H_
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