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* Only read symbol_id for strings which are known to be symbolsChris Adams2012-08-091-1/+1
| | | | | | | | | | Ensures that uninitialised symbol_id is not dereferenced if the string is created on the stack via code generators instead of on the heap. Task-number: QTBUG-23126 Change-Id: I083586ad46796e70b0246413742d326c60f379e5 Reviewed-by: Peter Varga <pvarga@inf.u-szeged.hu>
* [V8] QtScript/V8: Add new v8 api to check if a value is an error.Jedrzej Nowacki2012-06-131-0/+6
| | | | | | | | | | New function v8::Value::IsError was created. This API is experimental and added only for the purposes of our research. Change-Id: Id2f5a6728d15fc02ae3c03e6b49928afed0f62fa Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Add custom object compare callbackAaron Kennedy2012-06-131-0/+22
| | | | | | | | | | | | | | | A global custom object comparison callback can be set with: V8::SetUserObjectComparisonCallbackFunction() When two JSObjects are compared (== or !=), if either one has the MarkAsUseUserObjectComparison() bit set, the custom comparison callback is invoked to do the actual comparison. This is useful when you have "value" objects that you want to compare as equal, even though they are actually different JS object instances. Change-Id: Id1794ffc17131566c7ee30ab5fcf11445dab2ab2 Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Allow access to the calling script dataAaron Kennedy2012-06-131-0/+12
| | | | | Change-Id: I626c8bd090b83af1379fbd85e42b2dae44b5723d Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Introduce a QML compilation modeAaron Kennedy2012-06-131-9/+38
| | | | | | | | | | | | | | | | | In QML mode, there is a second global object - known as the QML global object. During property resolution, if a property is not present on the JS global object, it is resolved on the QML global object. This global object behavior is only enabled if a script is being compiled in QML mode. The object to use as the QML global object is passed as a parameter to the Script::Run() method. Any function closures etc. created during the run will retain a reference to this object, so different objects can be passed in different script runs. Change-Id: I86851683200d02208379744c887dfebc010a7ccc Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Generalize external object resourcesAaron Kennedy2012-06-131-0/+56
| | | | | | | | | | | | | | | | | | | V8 was already able to manage and finalize an external string resource. This change generalizes that mechanism to handle a single generic external resource - a v8::Object::ExternalResource derived instance - on normal JSObject's. This is useful for mapping C++ objects to JS objects where the C++ object's memory is effectively owned by the JS Object, and thus needs to destroyed when the JS Object is garbage collected. The V8 mailing list suggests using a weak persistent handle for this purpose, but that seems to incur a fairly massive performance penalty for short lived objects as weak persistent handle callbacks are not called until the object has been promoted into the old object space. Change-Id: I8f1a1f2a2be052339e8507b98058b289c7f16b0a Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Add a "fallback" mode for named property interceptorsAaron Kennedy2012-06-131-0/+29
| | | | | | | | | | | | | | By default interceptors are called before the normal property resolution on objects. When an interceptor is installed as a "fallback" interceptor, it is only called if the object doesn't already have the property. In the case of a global object having an fallback interceptor, the interceptor is not invoked at all for var or function declarations. Change-Id: Icf2b84aeca37358df22d6e2229dddd6ff6e1876e Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Add hashing and comparison methods to v8::StringAaron Kennedy2012-06-131-0/+53
| | | | | | | | This allows us to more rapidly search for a v8::String inside a hash of QStrings. Change-Id: I3243d9c97f93bc521cbbdca79cf9b2edac5969b7 Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* Updated V8 from git://github.com/v8/v8.git to ↵Peter Varga2012-06-131-241/+66
| | | | | | | | | | | | | | | | | | | | | | | | 3e6ec7e018bbf2c63ef04b85ff688198ea204c04 Update V8 source to version 3.11.4 * Performance and stability improvements on all platforms. * Fixed native ARM build (issues 1744, 539) * Fixed several bugs in heap profiles (including issue 2078). * Throw syntax errors on illegal escape sequences. * Made handling of const more consistent when combined with 'eval' and 'with'. * Fixed V8 on MinGW-x64 (issue 2026). * Put new global var semantics behind a flag until WebKit tests are cleaned up. * Enabled inlining some V8 API functions. * Enabled MIPS cross-compilation. * Implemented clearing of CompareICs (issue 2102). * Fixed python deprecations. (issue 1391) * Fixed GCC 4.7 (C++11) compilation. (issue 2136) Change-Id: I72594bd22356391dd55e315c022d0c9f3fd5b451 Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] QtScript/V8: Add new v8 api to check if a value is an error.Jedrzej Nowacki2012-04-261-0/+6
| | | | | | | | | | | New function v8::Value::IsError was created. This API is experimental and added only for the purposes of our research. Change-Id: I21c8a3484c2b5a0341b932bd81492b8ebc1f0e05 Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com> Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Add custom object compare callbackAaron Kennedy2012-04-261-0/+22
| | | | | | | | | | | | | | | A global custom object comparison callback can be set with: V8::SetUserObjectComparisonCallbackFunction() When two JSObjects are compared (== or !=), if either one has the MarkAsUseUserObjectComparison() bit set, the custom comparison callback is invoked to do the actual comparison. This is useful when you have "value" objects that you want to compare as equal, even though they are actually different JS object instances. Change-Id: Icd3419349874ee845684fff8455862da73f5ff2d Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Allow access to the calling script dataAaron Kennedy2012-04-261-0/+12
| | | | | Change-Id: I6efcd64530357a5ca789cd6cccd5426f370b64eb Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Introduce a QML compilation modeAaron Kennedy2012-04-261-9/+38
| | | | | | | | | | | | | | | | | In QML mode, there is a second global object - known as the QML global object. During property resolution, if a property is not present on the JS global object, it is resolved on the QML global object. This global object behavior is only enabled if a script is being compiled in QML mode. The object to use as the QML global object is passed as a parameter to the Script::Run() method. Any function closures etc. created during the run will retain a reference to this object, so different objects can be passed in different script runs. Change-Id: Id3753db6f5723f6d624bd497d6f606244a4ff09a Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Generalize external object resourcesAaron Kennedy2012-04-261-0/+56
| | | | | | | | | | | | | | | | | | | V8 was already able to manage and finalize an external string resource. This change generalizes that mechanism to handle a single generic external resource - a v8::Object::ExternalResource derived instance - on normal JSObject's. This is useful for mapping C++ objects to JS objects where the C++ object's memory is effectively owned by the JS Object, and thus needs to destroyed when the JS Object is garbage collected. The V8 mailing list suggests using a weak persistent handle for this purpose, but that seems to incur a fairly massive performance penalty for short lived objects as weak persistent handle callbacks are not called until the object has been promoted into the old object space. Change-Id: I83677c9d906742a2bf0596961491eecb7ee60003 Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Add a "fallback" mode for named property interceptorsAaron Kennedy2012-04-261-0/+29
| | | | | | | | | | | | | | By default interceptors are called before the normal property resolution on objects. When an interceptor is installed as a "fallback" interceptor, it is only called if the object doesn't already have the property. In the case of a global object having an fallback interceptor, the interceptor is not invoked at all for var or function declarations. Change-Id: Ia8c2b4d37070c97d9ef327da9e62d431427afe89 Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] Add hashing and comparison methods to v8::StringAaron Kennedy2012-04-261-0/+53
| | | | | | | | This allows us to more rapidly search for a v8::String inside a hash of QStrings. Change-Id: I7d3dc8903bd2c64adc201da924ca2e4954711ec6 Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* Updated V8 from git://github.com/v8/v8.git to ↵Peter Varga2012-04-261-295/+369
| | | | | | | | | | | | | | | | | | | | | | | | | 57f8959fb264354ba1a2e5118db512f588917061 Update V8 source to version 3.10.1. * Added optimizations and stability improvements on all platforms. * Various performance improvements. * Cleanup ScopeInfo and SerializedScopeInfo. * Introduce extended mode. * Implemented performance improvements to the incremental garbage collector. * Fixed handling of arrays in DefineOwnProperty. (issue 1756) * Fixed GCC 4.7 warnings. * Performance improvements for large Smi-only arrays. * Reduce the space used by the stack for the profiling thread. * Reduced memory use immediately after starting V8. * Fixed VFP detection through compiler defines. (issue 1996) * Remove static initializers in v8. (issue 1859) * Optimized boot-up memory use. * Optimized regular expressions. Change-Id: I2dad3092612de279179950dae4dd43daf0463a9f Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
* [V8] QtScript/V8: Add new v8 api to check if a value is an error.Jedrzej Nowacki2012-03-011-0/+6
| | | | | | | | | | New function v8::Value::IsError was created. This API is experimental and added only for the purposes of our research. Change-Id: I8f20d46bd81b18bcd7a7c2f7cfc25775d82a6834 Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] Add custom object compare callbackAaron Kennedy2012-03-011-0/+22
| | | | | | | | | | | | | | | A global custom object comparison callback can be set with: V8::SetUserObjectComparisonCallbackFunction() When two JSObjects are compared (== or !=), if either one has the MarkAsUseUserObjectComparison() bit set, the custom comparison callback is invoked to do the actual comparison. This is useful when you have "value" objects that you want to compare as equal, even though they are actually different JS object instances. Change-Id: Ifb4074058566062accc2be20d43e3febc1089d13 Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] Allow access to the calling script dataAaron Kennedy2012-03-011-0/+12
| | | | | Change-Id: Ia62421388693604ca5666924337180734be891c0 Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] Introduce a QML compilation modeAaron Kennedy2012-03-011-9/+38
| | | | | | | | | | | | | | | | | In QML mode, there is a second global object - known as the QML global object. During property resolution, if a property is not present on the JS global object, it is resolved on the QML global object. This global object behavior is only enabled if a script is being compiled in QML mode. The object to use as the QML global object is passed as a parameter to the Script::Run() method. Any function closures etc. created during the run will retain a reference to this object, so different objects can be passed in different script runs. Change-Id: Ib6b4ed363b7e8089d38a9cdcfb0d3b314dc333ca Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] Generalize external object resourcesAaron Kennedy2012-03-011-0/+56
| | | | | | | | | | | | | | | | | | | V8 was already able to manage and finalize an external string resource. This change generalizes that mechanism to handle a single generic external resource - a v8::Object::ExternalResource derived instance - on normal JSObject's. This is useful for mapping C++ objects to JS objects where the C++ object's memory is effectively owned by the JS Object, and thus needs to destroyed when the JS Object is garbage collected. The V8 mailing list suggests using a weak persistent handle for this purpose, but that seems to incur a fairly massive performance penalty for short lived objects as weak persistent handle callbacks are not called until the object has been promoted into the old object space. Change-Id: I3d7b5fe4ca6e37d49c92f3314b80d42bd4c84fcd Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] Add a "fallback" mode for named property interceptorsAaron Kennedy2012-03-011-0/+29
| | | | | | | | | | | | | | By default interceptors are called before the normal property resolution on objects. When an interceptor is installed as a "fallback" interceptor, it is only called if the object doesn't already have the property. In the case of a global object having an fallback interceptor, the interceptor is not invoked at all for var or function declarations. Change-Id: Ibbd0a6b3ad4bd68a8d15ce99520e71c46ad14f84 Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] Add hashing and comparison methods to v8::StringAaron Kennedy2012-03-011-0/+51
| | | | | | | | This allows us to more rapidly search for a v8::String inside a hash of QStrings. Change-Id: Ied9625aeefba730816d9ed7aa609a36592e5fc33 Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* Updated V8 from git://github.com/v8/v8.git to ↵Peter Varga2012-03-011-222/+12
| | | | | | | | | | | | | 06e55bc22bcb8ddb0a602e54e11971576f2d9d8a * Implement VirtualMemory on FreeBSD to fix build (issue 1807). * Fix error handling in Date.prototype.toISOString (issue 1792). * Crankshaft for MIPS * Bug fixes (mostly for MIPS) * Use placement-new for zone-allocation in the Lithium classes. Change-Id: I70ceacc4f7010cec58f73eb1826cbc06dd31149e Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
* [V8] QtScript/V8: Add new v8 api to check if a value is an error.Jedrzej Nowacki2012-01-051-0/+6
| | | | | | | | | New function v8::Value::IsError was created. This API is experimental and added only for the purposes of our research. Change-Id: I16374083eae684d34dd73e46a41e565a4cd236d4
* [V8] Add custom object compare callbackAaron Kennedy2012-01-051-0/+22
| | | | | | | | | | | | | | A global custom object comparison callback can be set with: V8::SetUserObjectComparisonCallbackFunction() When two JSObjects are compared (== or !=), if either one has the MarkAsUseUserObjectComparison() bit set, the custom comparison callback is invoked to do the actual comparison. This is useful when you have "value" objects that you want to compare as equal, even though they are actually different JS object instances. Change-Id: Ic7512e8342c071793393e5ad3fcb6fb241f7cc80
* [V8] Allow access to the calling script dataAaron Kennedy2012-01-051-0/+12
| | | | Change-Id: Iae8b5697d4ad73d7934ee50879859394c66c80da
* [V8] Introduce a QML compilation modeAaron Kennedy2012-01-051-9/+43
| | | | | | | | | | | | | | | | In QML mode, there is a second global object - known as the QML global object. During property resolution, if a property is not present on the JS global object, it is resolved on the QML global object. This global object behavior is only enabled if a script is being compiled in QML mode. The object to use as the QML global object is passed as a parameter to the Script::Run() method. Any function closures etc. created during the run will retain a reference to this object, so different objects can be passed in different script runs. Change-Id: I4950562d455074578c372d8e0e3089887b06e0a1
* [V8] Generalize external object resourcesAaron Kennedy2012-01-051-0/+56
| | | | | | | | | | | | | | | | | | V8 was already able to manage and finalize an external string resource. This change generalizes that mechanism to handle a single generic external resource - a v8::Object::ExternalResource derived instance - on normal JSObject's. This is useful for mapping C++ objects to JS objects where the C++ object's memory is effectively owned by the JS Object, and thus needs to destroyed when the JS Object is garbage collected. The V8 mailing list suggests using a weak persistent handle for this purpose, but that seems to incur a fairly massive performance penalty for short lived objects as weak persistent handle callbacks are not called until the object has been promoted into the old object space. Change-Id: Ia21a181927a2e68d33a623bbe47e0f1a4404ec8e
* [V8] Add a "fallback" mode for named property interceptorsAaron Kennedy2012-01-051-0/+29
| | | | | | | | | | | | | By default interceptors are called before the normal property resolution on objects. When an interceptor is installed as a "fallback" interceptor, it is only called if the object doesn't already have the property. In the case of a global object having an fallback interceptor, the interceptor is not invoked at all for var or function declarations. Change-Id: I9228c114b2d2f3a9386617b53f7d8ac86371159d
* [V8] Add hashing and comparison methods to v8::StringAaron Kennedy2012-01-051-0/+51
| | | | | | | This allows us to more rapidly search for a v8::String inside a hash of QStrings. Change-Id: I0a8bfb1aa34f00d987862a7bfe94c822a73d8c54
* Imported v8 version 3.7.3 from https://github.com/v8/v8.gitSimon Hausmann2012-01-051-0/+6109
Change-Id: I152648081e46f599c2bb88eaaf67034fa5daac3a
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