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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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581 | 581 |
582 // Store a timestamp to the cache as hint. | 582 // Store a timestamp to the cache as hint. |
583 void V8ScriptRunner::setCacheTimeStamp(CachedMetadataHandler* cacheHandler) | 583 void V8ScriptRunner::setCacheTimeStamp(CachedMetadataHandler* cacheHandler) |
584 { | 584 { |
585 double now = WTF::currentTime(); | 585 double now = WTF::currentTime(); |
586 unsigned tag = cacheTag(CacheTagTimeStamp, cacheHandler); | 586 unsigned tag = cacheTag(CacheTagTimeStamp, cacheHandler); |
587 cacheHandler->clearCachedMetadata(CachedMetadataHandler::CacheLocally); | 587 cacheHandler->clearCachedMetadata(CachedMetadataHandler::CacheLocally); |
588 cacheHandler->setCachedMetadata(tag, reinterpret_cast<char*>(&now), sizeof(n ow), CachedMetadataHandler::SendToPlatform); | 588 cacheHandler->setCachedMetadata(tag, reinterpret_cast<char*>(&now), sizeof(n ow), CachedMetadataHandler::SendToPlatform); |
589 } | 589 } |
590 | 590 |
591 void V8ScriptRunner::throwException(v8::Isolate* isolate, v8::Local<v8::Value> e xception, const v8::ScriptOrigin& origin) | |
592 { | |
593 // Use V8ThrowException instead of this function unless absolutely needed. | |
Yuki
2016/08/22 06:42:08
Thanks for the caution, but it's better to put thi
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594 // In order for the current TryCatch to catch this exception and | |
595 // call MessageCallback when SetVerbose(true), create a v8::Function | |
596 // that calls isolate->throwException(). | |
597 // Unlike throwStackOverflowExceptionIfNeeded(), create a temporary Script | |
598 // with the specified ScriptOrigin. When the exception was created but not | |
599 // thrown yet, the ScriptOrigin of the thrower is set to the exception. | |
600 // v8::Function::New() has empty ScriptOrigin, and thus the exception will | |
601 // be "muted" (sanitized in our terminology) if CORS does not allow. | |
602 // https://html.spec.whatwg.org/multipage/webappapis.html#report-the-error | |
603 v8::Local<v8::Script> script = compileWithoutOptions( | |
604 V8CompileHistogram::Cacheability::Noncacheable, isolate, | |
605 v8AtomicString(isolate, "((e) => { throw e; })"), origin) | |
606 .ToLocalChecked(); | |
607 v8::Local<v8::Function> thrower = runCompiledInternalScript(isolate, script) | |
haraken
2016/08/22 06:36:47
It's silly that we have to compile the script ever
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608 .ToLocalChecked().As<v8::Function>(); | |
609 callInternalFunction(thrower, thrower, 1, &exception, isolate); | |
haraken
2016/08/22 06:36:47
I'd prefer creating an array.
v8::Local<v8::Value
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610 } | |
611 | |
591 } // namespace blink | 612 } // namespace blink |
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