src/third_party/WebKit/Source/JavaScriptCore/runtime/ExceptionHelpers.cpp

/*
 * Copyright (C) 2008, 2009 Apple 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 Computer, 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
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 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 */

#include "config.h"
#include "ExceptionHelpers.h"

#include "CodeBlock.h"
#include "CallFrame.h"
#include "ErrorInstance.h"
#include "JSGlobalObjectFunctions.h"
#include "JSObject.h"
#include "JSNotAnObject.h"
#include "Interpreter.h"
#include "Nodes.h"

namespace JSC {

ASSERT_HAS_TRIVIAL_DESTRUCTOR(InterruptedExecutionError);

const ClassInfo InterruptedExecutionError::s_info = { "InterruptedExecutionError", Base::s_classinfo(), 0, 0, CREATE_METHOD_TABLE(InterruptedExecutionError) };

JSValue InterruptedExecutionError::defaultValue(const JSObject*, ExecState* exec, PreferredPrimitiveType hint)
{
    if (hint == PreferString)
        return jsNontrivialString(exec, String(ASCIILiteral("JavaScript execution exceeded timeout.")));
    return JSValue(QNaN);
}

JSObject* createInterruptedExecutionException(JSGlobalData* globalData)
{
    return InterruptedExecutionError::create(*globalData);
}

bool isInterruptedExecutionException(JSObject* object)
{
    return object->inherits(InterruptedExecutionError::s_classinfo());
}

bool isInterruptedExecutionException(JSValue value)
{
    return value.inherits(InterruptedExecutionError::s_classinfo());
}


ASSERT_HAS_TRIVIAL_DESTRUCTOR(TerminatedExecutionError);

const ClassInfo TerminatedExecutionError::s_info = { "TerminatedExecutionError", Base::s_classinfo(), 0, 0, CREATE_METHOD_TABLE(TerminatedExecutionError) };

JSValue TerminatedExecutionError::defaultValue(const JSObject*, ExecState* exec, PreferredPrimitiveType hint)
{
    if (hint == PreferString)
        return jsNontrivialString(exec, String(ASCIILiteral("JavaScript execution terminated.")));
    return JSValue(QNaN);
}

JSObject* createTerminatedExecutionException(JSGlobalData* globalData)
{
    return TerminatedExecutionError::create(*globalData);
}

bool isTerminatedExecutionException(JSObject* object)
{
    return object->inherits(TerminatedExecutionError::s_classinfo());
}

bool isTerminatedExecutionException(JSValue value)
{
    return value.inherits(TerminatedExecutionError::s_classinfo());
}


JSObject* createStackOverflowError(ExecState* exec)
{
    return createRangeError(exec, ASCIILiteral("Maximum call stack size exceeded."));
}

JSObject* createStackOverflowError(JSGlobalObject* globalObject)
{
    return createRangeError(globalObject, ASCIILiteral("Maximum call stack size exceeded."));
}

JSObject* createUndefinedVariableError(ExecState* exec, const Identifier& ident)
{
    String message(makeString("Can't find variable: ", ident.string()));
    return createReferenceError(exec, message);
}
    
JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a valid argument for '", op, "'");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createNotAConstructorError(ExecState* exec, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a constructor");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createNotAFunctionError(ExecState* exec, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not a function");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createNotAnObjectError(ExecState* exec, JSValue value)
{
    String errorMessage = makeString("'", value.toString(exec)->value(exec), "' is not an object");
    JSObject* exception = createTypeError(exec, errorMessage);
    ASSERT(exception->isErrorInstance());
    static_cast<ErrorInstance*>(exception)->setAppendSourceToMessage();
    return exception;
}

JSObject* createErrorForInvalidGlobalAssignment(ExecState* exec, const String& propertyName)
{
    return createReferenceError(exec, makeString("Strict mode forbids implicit creation of global property '", propertyName, "'"));
}

JSObject* createOutOfMemoryError(JSGlobalObject* globalObject)
{
    return createError(globalObject, ASCIILiteral("Out of memory"));
}

JSObject* throwOutOfMemoryError(ExecState* exec)
{
    return throwError(exec, createOutOfMemoryError(exec->lexicalGlobalObject()));
}

JSObject* throwStackOverflowError(ExecState* exec)
{
    Interpreter::ErrorHandlingMode mode(exec);
    return throwError(exec, createStackOverflowError(exec));
}

} // namespace JSC