diff options
Diffstat (limited to 'src/script/api/qscriptengine_p.h')
| -rw-r--r-- | src/script/api/qscriptengine_p.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/script/api/qscriptengine_p.h b/src/script/api/qscriptengine_p.h index f8144e9155..94d195e883 100644 --- a/src/script/api/qscriptengine_p.h +++ b/src/script/api/qscriptengine_p.h @@ -56,6 +56,7 @@ #include "Debugger.h" #include "ErrorInstance.h" #include "JSArray.h" +#include "Executable.h" #include "Lexer.h" #include "RefPtr.h" #include "RegExpConstructor.h" @@ -231,6 +232,8 @@ public: static inline JSC::ExecState *frameForContext(QScriptContext *context); static inline const JSC::ExecState *frameForContext(const QScriptContext *context); + static inline bool hasValidCodeBlockRegister(JSC::ExecState *frame); + JSC::JSGlobalObject *originalGlobalObject() const; JSC::JSObject *getOriginalGlobalObjectProxy(); JSC::JSObject *customGlobalObject() const; @@ -862,6 +865,21 @@ inline const JSC::ExecState *QScriptEnginePrivate::frameForContext(const QScript return reinterpret_cast<const JSC::ExecState*>(context); } +inline bool QScriptEnginePrivate::hasValidCodeBlockRegister(JSC::ExecState *frame) +{ +#if ENABLE(JIT) + // Frames created by the VM don't have their CodeBlock register + // initialized. We can detect such frames by checking if the + // callee is a host JSFunction. + JSC::JSObject *callee = frame->callee(); + return !(callee && callee->inherits(&JSC::JSFunction::info) + && JSC::asFunction(callee)->isHostFunction()); +#else + Q_UNUSED(frame); + return true; +#endif +} + inline JSC::ExecState *QScriptEnginePrivate::globalExec() const { return originalGlobalObject()->globalExec(); |