From c4af45c2914381172e1bd7ee528481edaa2fff1a Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12 --- src/script/bridge/qscriptfunction.cpp | 176 ++++++++++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 src/script/bridge/qscriptfunction.cpp (limited to 'src/script/bridge/qscriptfunction.cpp') diff --git a/src/script/bridge/qscriptfunction.cpp b/src/script/bridge/qscriptfunction.cpp new file mode 100644 index 0000000..0480ce7 --- /dev/null +++ b/src/script/bridge/qscriptfunction.cpp @@ -0,0 +1,176 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtScript module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL-ONLY$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "config.h" +#include "qscriptfunction_p.h" + +#include "private/qscriptengine_p.h" +#include "qscriptcontext.h" +#include "private/qscriptcontext_p.h" +#include "private/qscriptvalue_p.h" +#include "qscriptactivationobject_p.h" +#include "qscriptobject_p.h" + +#include "JSGlobalObject.h" +#include "DebuggerCallFrame.h" +#include "Debugger.h" + +namespace JSC +{ +ASSERT_CLASS_FITS_IN_CELL(QT_PREPEND_NAMESPACE(QScript::FunctionWrapper)); +ASSERT_CLASS_FITS_IN_CELL(QT_PREPEND_NAMESPACE(QScript::FunctionWithArgWrapper)); +} + +QT_BEGIN_NAMESPACE + +namespace QScript +{ + +const JSC::ClassInfo FunctionWrapper::info = { "QtNativeFunctionWrapper", &PrototypeFunction::info, 0, 0 }; +const JSC::ClassInfo FunctionWithArgWrapper::info = { "QtNativeFunctionWithArgWrapper", &PrototypeFunction::info, 0, 0 }; + +FunctionWrapper::FunctionWrapper(JSC::ExecState *exec, int length, const JSC::Identifier &name, + QScriptEngine::FunctionSignature function) + : JSC::PrototypeFunction(exec, length, name, proxyCall), + data(new Data()) +{ + data->function = function; +} + +FunctionWrapper::~FunctionWrapper() +{ + delete data; +} + +JSC::ConstructType FunctionWrapper::getConstructData(JSC::ConstructData& consData) +{ + consData.native.function = proxyConstruct; + consData.native.function.doNotCallDebuggerFunctionExit(); + return JSC::ConstructTypeHost; +} + +JSC::JSValue FunctionWrapper::proxyCall(JSC::ExecState *exec, JSC::JSObject *callee, + JSC::JSValue thisObject, const JSC::ArgList &args) +{ + FunctionWrapper *self = static_cast(callee); + QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec); + + JSC::ExecState *oldFrame = eng_p->currentFrame; + eng_p->pushContext(exec, thisObject, args, callee); + QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame); + + QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p)); + if (!result.isValid()) + result = QScriptValue(QScriptValue::UndefinedValue); + + eng_p->popContext(); + eng_p->currentFrame = oldFrame; + + return eng_p->scriptValueToJSCValue(result); +} + +JSC::JSObject* FunctionWrapper::proxyConstruct(JSC::ExecState *exec, JSC::JSObject *callee, + const JSC::ArgList &args) +{ + FunctionWrapper *self = static_cast(callee); + QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec); + + JSC::ExecState *oldFrame = eng_p->currentFrame; + eng_p->pushContext(exec, JSC::JSValue(), args, callee, true); + QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame); + + QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p)); + + if (JSC::Debugger* debugger = eng_p->originalGlobalObject()->debugger()) + debugger->functionExit(QScriptValuePrivate::get(result)->jscValue, -1); + + if (!result.isObject()) + result = ctx->thisObject(); + + eng_p->popContext(); + eng_p->currentFrame = oldFrame; + + return JSC::asObject(eng_p->scriptValueToJSCValue(result)); +} + +FunctionWithArgWrapper::FunctionWithArgWrapper(JSC::ExecState *exec, int length, const JSC::Identifier &name, + QScriptEngine::FunctionWithArgSignature function, void *arg) + : JSC::PrototypeFunction(exec, length, name, proxyCall), + data(new Data()) +{ + data->function = function; + data->arg = arg; +} + +FunctionWithArgWrapper::~FunctionWithArgWrapper() +{ + delete data; +} + +JSC::ConstructType FunctionWithArgWrapper::getConstructData(JSC::ConstructData& consData) +{ + consData.native.function = proxyConstruct; + return JSC::ConstructTypeHost; +} + +JSC::JSValue FunctionWithArgWrapper::proxyCall(JSC::ExecState *exec, JSC::JSObject *callee, + JSC::JSValue thisObject, const JSC::ArgList &args) +{ + FunctionWithArgWrapper *self = static_cast(callee); + QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec); + + JSC::ExecState *oldFrame = eng_p->currentFrame; + eng_p->pushContext(exec, thisObject, args, callee); + QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame); + + QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p), self->data->arg); + + eng_p->popContext(); + eng_p->currentFrame = oldFrame; + + return eng_p->scriptValueToJSCValue(result); +} + +JSC::JSObject* FunctionWithArgWrapper::proxyConstruct(JSC::ExecState *exec, JSC::JSObject *callee, + const JSC::ArgList &args) +{ + FunctionWithArgWrapper *self = static_cast(callee); + QScriptEnginePrivate *eng_p = QScript::scriptEngineFromExec(exec); + + JSC::ExecState *oldFrame = eng_p->currentFrame; + eng_p->pushContext(exec, JSC::JSValue(), args, callee, true); + QScriptContext *ctx = eng_p->contextForFrame(eng_p->currentFrame); + + QScriptValue result = self->data->function(ctx, QScriptEnginePrivate::get(eng_p) , self->data->arg); + if (!result.isObject()) + result = ctx->thisObject(); + + eng_p->popContext(); + eng_p->currentFrame = oldFrame; + + return JSC::asObject(eng_p->scriptValueToJSCValue(result)); +} + +} // namespace QScript + +QT_END_NAMESPACE -- cgit v1.2.1