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Issue 239543010: Revert "Move functions from handles.cc to where they belong." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #ifndef V8_HANDLES_H_ 28 #ifndef V8_HANDLES_H_
29 #define V8_HANDLES_H_ 29 #define V8_HANDLES_H_
30 30
31 #include "allocation.h"
31 #include "objects.h" 32 #include "objects.h"
32 33
33 namespace v8 { 34 namespace v8 {
34 namespace internal { 35 namespace internal {
35 36
36 // A Handle can be converted into a MaybeHandle. Converting a MaybeHandle 37 // A Handle can be converted into a MaybeHandle. Converting a MaybeHandle
37 // into a Handle requires checking that it does not point to NULL. This 38 // into a Handle requires checking that it does not point to NULL. This
38 // ensures NULL checks before use. 39 // ensures NULL checks before use.
39 // Do not use MaybeHandle as argument type. 40 // Do not use MaybeHandle as argument type.
40 41
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273 274
274 #ifdef DEBUG 275 #ifdef DEBUG
275 bool handles_detached_; 276 bool handles_detached_;
276 int prev_level_; 277 int prev_level_;
277 #endif 278 #endif
278 279
279 friend class HandleScopeImplementer; 280 friend class HandleScopeImplementer;
280 }; 281 };
281 282
282 283
284 // ----------------------------------------------------------------------------
285 // Handle operations.
286 // They might invoke garbage collection. The result is an handle to
287 // an object of expected type, or the handle is an error if running out
288 // of space or encountering an internal error.
289
290 MUST_USE_RESULT MaybeHandle<Object> GetProperty(Handle<JSReceiver> obj,
291 const char* name);
292
293 // Get the JS object corresponding to the given script; create it
294 // if none exists.
295 Handle<JSValue> GetScriptWrapper(Handle<Script> script);
296
297 // Script line number computations. Note that the line number is zero-based.
298 void InitScriptLineEnds(Handle<Script> script);
299 // For string calculates an array of line end positions. If the string
300 // does not end with a new line character, this character may optionally be
301 // imagined.
302 Handle<FixedArray> CalculateLineEnds(Handle<String> string,
303 bool with_imaginary_last_new_line);
304 int GetScriptLineNumber(Handle<Script> script, int code_position);
305 // The safe version does not make heap allocations but may work much slower.
306 int GetScriptLineNumberSafe(Handle<Script> script, int code_position);
307 int GetScriptColumnNumber(Handle<Script> script, int code_position);
308 Handle<Object> GetScriptNameOrSourceURL(Handle<Script> script);
309
310 // Computes the enumerable keys from interceptors. Used for debug mirrors and
311 // by GetKeysInFixedArrayFor below.
312 v8::Handle<v8::Array> GetKeysForNamedInterceptor(Handle<JSReceiver> receiver,
313 Handle<JSObject> object);
314 v8::Handle<v8::Array> GetKeysForIndexedInterceptor(Handle<JSReceiver> receiver,
315 Handle<JSObject> object);
316
317 enum KeyCollectionType { LOCAL_ONLY, INCLUDE_PROTOS };
318
319 // Computes the enumerable keys for a JSObject. Used for implementing
320 // "for (n in object) { }".
321 MUST_USE_RESULT MaybeHandle<FixedArray> GetKeysInFixedArrayFor(
322 Handle<JSReceiver> object, KeyCollectionType type);
323 Handle<FixedArray> ReduceFixedArrayTo(Handle<FixedArray> array, int length);
324 Handle<FixedArray> GetEnumPropertyKeys(Handle<JSObject> object,
325 bool cache_result);
326
327 void AddWeakObjectToCodeDependency(Heap* heap,
328 Handle<Object> object,
329 Handle<Code> code);
330
283 // Seal off the current HandleScope so that new handles can only be created 331 // Seal off the current HandleScope so that new handles can only be created
284 // if a new HandleScope is entered. 332 // if a new HandleScope is entered.
285 class SealHandleScope BASE_EMBEDDED { 333 class SealHandleScope BASE_EMBEDDED {
286 public: 334 public:
287 #ifndef DEBUG 335 #ifndef DEBUG
288 explicit SealHandleScope(Isolate* isolate) {} 336 explicit SealHandleScope(Isolate* isolate) {}
289 ~SealHandleScope() {} 337 ~SealHandleScope() {}
290 #else 338 #else
291 explicit inline SealHandleScope(Isolate* isolate); 339 explicit inline SealHandleScope(Isolate* isolate);
292 inline ~SealHandleScope(); 340 inline ~SealHandleScope();
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304 352
305 void Initialize() { 353 void Initialize() {
306 next = limit = NULL; 354 next = limit = NULL;
307 level = 0; 355 level = 0;
308 } 356 }
309 }; 357 };
310 358
311 } } // namespace v8::internal 359 } } // namespace v8::internal
312 360
313 #endif // V8_HANDLES_H_ 361 #endif // V8_HANDLES_H_
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