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authorKonstantin Tokarev <annulen@yandex.ru>2016-08-25 19:20:41 +0300
committerKonstantin Tokarev <annulen@yandex.ru>2017-02-02 12:30:55 +0000
commit6882a04fb36642862b11efe514251d32070c3d65 (patch)
treeb7959826000b061fd5ccc7512035c7478742f7b0 /Source/JavaScriptCore/bindings/ScriptValue.cpp
parentab6df191029eeeb0b0f16f127d553265659f739e (diff)
downloadqtwebkit-6882a04fb36642862b11efe514251d32070c3d65.tar.gz
Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)
Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>
Diffstat (limited to 'Source/JavaScriptCore/bindings/ScriptValue.cpp')
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1 files changed, 162 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/bindings/ScriptValue.cpp b/Source/JavaScriptCore/bindings/ScriptValue.cpp
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+/*
+ * Copyright (C) 2006, 2007, 2008, 2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Apple Inc. ("Apple") nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "ScriptValue.h"
+
+#include "APICast.h"
+#include "InspectorValues.h"
+#include "JSLock.h"
+#include "StructureInlines.h"
+
+using namespace JSC;
+using namespace Inspector;
+
+namespace Deprecated {
+
+ScriptValue::~ScriptValue()
+{
+}
+
+bool ScriptValue::getString(ExecState* scriptState, String& result) const
+{
+ if (!m_value)
+ return false;
+ JSLockHolder lock(scriptState);
+ if (!m_value.get().getString(scriptState, result))
+ return false;
+ return true;
+}
+
+String ScriptValue::toString(ExecState* scriptState) const
+{
+ String result = m_value.get().toString(scriptState)->value(scriptState);
+ // Handle the case where an exception is thrown as part of invoking toString on the object.
+ if (scriptState->hadException())
+ scriptState->clearException();
+ return result;
+}
+
+bool ScriptValue::isEqual(ExecState* scriptState, const ScriptValue& anotherValue) const
+{
+ if (hasNoValue())
+ return anotherValue.hasNoValue();
+ return JSValueIsEqual(toRef(scriptState), toRef(scriptState, jsValue()), toRef(scriptState, anotherValue.jsValue()), nullptr);
+}
+
+bool ScriptValue::isNull() const
+{
+ if (!m_value)
+ return false;
+ return m_value.get().isNull();
+}
+
+bool ScriptValue::isUndefined() const
+{
+ if (!m_value)
+ return false;
+ return m_value.get().isUndefined();
+}
+
+bool ScriptValue::isObject() const
+{
+ if (!m_value)
+ return false;
+ return m_value.get().isObject();
+}
+
+bool ScriptValue::isFunction() const
+{
+ CallData callData;
+ return getCallData(m_value.get(), callData) != CallTypeNone;
+}
+
+static RefPtr<InspectorValue> jsToInspectorValue(ExecState* scriptState, JSValue value, int maxDepth)
+{
+ if (!value) {
+ ASSERT_NOT_REACHED();
+ return nullptr;
+ }
+
+ if (!maxDepth)
+ return nullptr;
+
+ maxDepth--;
+
+ if (value.isNull() || value.isUndefined())
+ return InspectorValue::null();
+ if (value.isBoolean())
+ return InspectorBasicValue::create(value.asBoolean());
+ if (value.isNumber() && value.isDouble())
+ return InspectorBasicValue::create(value.asNumber());
+ if (value.isNumber() && value.isMachineInt())
+ return InspectorBasicValue::create(static_cast<int>(value.asMachineInt()));
+ if (value.isString())
+ return InspectorString::create(value.getString(scriptState));
+
+ if (value.isObject()) {
+ if (isJSArray(value)) {
+ Ref<InspectorArray> inspectorArray = InspectorArray::create();
+ JSArray* array = asArray(value);
+ unsigned length = array->length();
+ for (unsigned i = 0; i < length; i++) {
+ JSValue element = array->getIndex(scriptState, i);
+ RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth);
+ if (!elementValue)
+ return nullptr;
+ inspectorArray->pushValue(WTFMove(elementValue));
+ }
+ return WTFMove(inspectorArray);
+ }
+ Ref<InspectorObject> inspectorObject = InspectorObject::create();
+ JSObject* object = value.getObject();
+ PropertyNameArray propertyNames(scriptState, PropertyNameMode::Strings);
+ object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, EnumerationMode());
+ for (size_t i = 0; i < propertyNames.size(); i++) {
+ const Identifier& name = propertyNames[i];
+ JSValue propertyValue = object->get(scriptState, name);
+ RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth);
+ if (!inspectorValue)
+ return nullptr;
+ inspectorObject->setValue(name.string(), WTFMove(inspectorValue));
+ }
+ return WTFMove(inspectorObject);
+ }
+
+ ASSERT_NOT_REACHED();
+ return nullptr;
+}
+
+RefPtr<InspectorValue> ScriptValue::toInspectorValue(ExecState* scriptState) const
+{
+ JSLockHolder holder(scriptState);
+ return jsToInspectorValue(scriptState, m_value.get(), InspectorValue::maxDepth);
+}
+
+} // namespace Deprecated