webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 281 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/Error.cpp b/Source/JavaScriptCore/runtime/Error.cpp
new file mode 100644
index 000000000..00285a675
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/Error.cpp
@@ -0,0 +1,281 @@
+/*
+ *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2007 Eric Seidel (eric@webkit.org)
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "Error.h"
+
+#include "ConstructData.h"
+#include "ErrorConstructor.h"
+#include "ExceptionHelpers.h"
+#include "FunctionPrototype.h"
+#include "JSArray.h"
+#include "JSFunction.h"
+#include "JSGlobalObject.h"
+#include "JSObject.h"
+#include "JSString.h"
+#include "NativeErrorConstructor.h"
+#include "JSCInlines.h"
+#include "SourceCode.h"
+
+#include <wtf/text/StringBuilder.h>
+
+namespace JSC {
+
+static const char* linePropertyName = "line";
+static const char* sourceURLPropertyName = "sourceURL";
+
+JSObject* createError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->errorStructure(), message, appender, TypeNothing, true);
+}
+
+JSObject* createEvalError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->evalErrorConstructor()->errorStructure(), message, appender, TypeNothing, true);
+}
+
+JSObject* createRangeError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->rangeErrorConstructor()->errorStructure(), message, appender, TypeNothing, true);
+}
+
+JSObject* createReferenceError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->referenceErrorConstructor()->errorStructure(), message, appender, TypeNothing, true);
+}
+
+JSObject* createSyntaxError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->syntaxErrorConstructor()->errorStructure(), message, appender, TypeNothing, true);
+}
+
+JSObject* createTypeError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender, RuntimeType type)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->typeErrorConstructor()->errorStructure(), message, appender, type, true);
+}
+
+JSObject* createNotEnoughArgumentsError(ExecState* exec, ErrorInstance::SourceAppender appender)
+{
+    return createTypeError(exec, ASCIILiteral("Not enough arguments"), appender, TypeNothing);
+}
+
+JSObject* createURIError(ExecState* exec, const String& message, ErrorInstance::SourceAppender appender)
+{
+    ASSERT(!message.isEmpty());
+    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
+    return ErrorInstance::create(exec, globalObject->vm(), globalObject->URIErrorConstructor()->errorStructure(), message, appender, TypeNothing, true);
+}
+
+JSObject* createOutOfMemoryError(ExecState* exec, ErrorInstance::SourceAppender appender) 
+{
+    return createError(exec, ASCIILiteral("Out of memory"), appender);
+}
+
+
+class FindFirstCallerFrameWithCodeblockFunctor {
+public:
+    FindFirstCallerFrameWithCodeblockFunctor(CallFrame* startCallFrame)
+        : m_startCallFrame(startCallFrame)
+        , m_foundCallFrame(nullptr)
+        , m_foundStartCallFrame(false)
+        , m_index(0)
+    { }
+
+    StackVisitor::Status operator()(StackVisitor& visitor)
+    {
+        if (!m_foundStartCallFrame && (visitor->callFrame() == m_startCallFrame))
+            m_foundStartCallFrame = true;
+
+        if (m_foundStartCallFrame) {
+            if (visitor->callFrame()->codeBlock()) {
+                m_foundCallFrame = visitor->callFrame();
+                return StackVisitor::Done;
+            }
+            m_index++;
+        }
+
+        return StackVisitor::Continue;
+    }
+
+    CallFrame* foundCallFrame() const { return m_foundCallFrame; }
+    unsigned index() const { return m_index; }
+
+private:
+    CallFrame* m_startCallFrame;
+    CallFrame* m_foundCallFrame;
+    bool m_foundStartCallFrame;
+    unsigned m_index;
+};
+
+bool addErrorInfoAndGetBytecodeOffset(ExecState* exec, VM& vm, JSObject* obj, bool useCurrentFrame, CallFrame*& callFrame, unsigned &bytecodeOffset) 
+{
+    Vector<StackFrame> stackTrace = Vector<StackFrame>();
+
+    if (exec && stackTrace.isEmpty())
+        vm.interpreter->getStackTrace(stackTrace);
+
+    if (!stackTrace.isEmpty()) {
+
+        ASSERT(exec == vm.topCallFrame || exec == exec->lexicalGlobalObject()->globalExec() || exec == exec->vmEntryGlobalObject()->globalExec());
+
+        StackFrame* stackFrame;
+        for (unsigned i = 0 ; i < stackTrace.size(); ++i) {
+            stackFrame = &stackTrace.at(i);
+            if (stackFrame->bytecodeOffset)
+                break;
+        }
+
+        if (bytecodeOffset) {
+            FindFirstCallerFrameWithCodeblockFunctor functor(exec);
+            vm.topCallFrame->iterate(functor);
+            callFrame = functor.foundCallFrame();
+            unsigned stackIndex = functor.index();
+            bytecodeOffset = stackTrace.at(stackIndex).bytecodeOffset;
+        }
+        
+        unsigned line;
+        unsigned column;
+        stackFrame->computeLineAndColumn(line, column);
+        obj->putDirect(vm, vm.propertyNames->line, jsNumber(line), ReadOnly | DontDelete);
+        obj->putDirect(vm, vm.propertyNames->column, jsNumber(column), ReadOnly | DontDelete);
+
+        if (!stackFrame->sourceURL.isEmpty())
+            obj->putDirect(vm, vm.propertyNames->sourceURL, jsString(&vm, stackFrame->sourceURL), ReadOnly | DontDelete);
+    
+        if (!useCurrentFrame)
+            stackTrace.remove(0);
+        obj->putDirect(vm, vm.propertyNames->stack, vm.interpreter->stackTraceAsString(vm.topCallFrame, stackTrace), DontEnum);
+
+        return true;
+    }
+    return false;
+}
+
+void addErrorInfo(ExecState* exec, JSObject* obj, bool useCurrentFrame)
+{
+    CallFrame* callFrame = nullptr;
+    unsigned bytecodeOffset = 0;
+    addErrorInfoAndGetBytecodeOffset(exec, exec->vm(), obj, useCurrentFrame, callFrame, bytecodeOffset);
+}
+
+JSObject* addErrorInfo(CallFrame* callFrame, JSObject* error, int line, const SourceCode& source)
+{
+    VM* vm = &callFrame->vm();
+    const String& sourceURL = source.provider()->url();
+
+    if (line != -1)
+        error->putDirect(*vm, Identifier::fromString(vm, linePropertyName), jsNumber(line), ReadOnly | DontDelete);
+    if (!sourceURL.isNull())
+        error->putDirect(*vm, Identifier::fromString(vm, sourceURLPropertyName), jsString(vm, sourceURL), ReadOnly | DontDelete);
+    return error;
+}
+
+
+bool hasErrorInfo(ExecState* exec, JSObject* error)
+{
+    return error->hasProperty(exec, Identifier::fromString(exec, linePropertyName))
+        || error->hasProperty(exec, Identifier::fromString(exec, sourceURLPropertyName));
+}
+
+JSObject* throwTypeError(ExecState* exec)
+{
+    return exec->vm().throwException(exec, createTypeError(exec));
+}
+
+JSObject* throwSyntaxError(ExecState* exec)
+{
+    return exec->vm().throwException(exec, createSyntaxError(exec, ASCIILiteral("Syntax error")));
+}
+
+
+JSObject* createError(ExecState* exec, const String& message)
+{
+    return createError(exec, message, nullptr);
+}
+
+JSObject* createEvalError(ExecState* exec, const String& message)
+{
+    return createEvalError(exec, message, nullptr);
+}
+
+JSObject* createRangeError(ExecState* exec, const String& message)
+{
+    return createRangeError(exec, message, nullptr);
+}
+
+JSObject* createReferenceError(ExecState* exec, const String& message)
+{
+    return createReferenceError(exec, message, nullptr);
+}
+
+JSObject* createSyntaxError(ExecState* exec, const String& message)
+{
+    return createSyntaxError(exec, message, nullptr);
+}
+
+JSObject* createTypeError(ExecState* exec)
+{
+    return createTypeError(exec, ASCIILiteral("Type error"));
+}
+
+JSObject* createTypeError(ExecState* exec, const String& message)
+{
+    return createTypeError(exec, message, nullptr, TypeNothing);
+}
+
+JSObject* createNotEnoughArgumentsError(ExecState* exec)
+{
+    return createNotEnoughArgumentsError(exec, nullptr);
+}
+
+JSObject* createURIError(ExecState* exec, const String& message)
+{
+    return createURIError(exec, message, nullptr);
+}
+
+JSObject* createOutOfMemoryError(ExecState* exec)
+{
+    return createOutOfMemoryError(exec, nullptr);
+}
+
+
+const ClassInfo StrictModeTypeErrorFunction::s_info = { "Function", &Base::s_info, 0, CREATE_METHOD_TABLE(StrictModeTypeErrorFunction) };
+
+void StrictModeTypeErrorFunction::destroy(JSCell* cell)
+{
+    static_cast<StrictModeTypeErrorFunction*>(cell)->StrictModeTypeErrorFunction::~StrictModeTypeErrorFunction();
+}
+
+} // namespace JSC