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/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2003, 2007, 2008 Apple Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "config.h"
#include "RegExpPrototype.h"
#include "ArrayPrototype.h"
#include "Error.h"
#include "JSArray.h"
#include "JSFunction.h"
#include "JSObject.h"
#include "JSString.h"
#include "JSStringBuilder.h"
#include "JSValue.h"
#include "ObjectPrototype.h"
#include "RegExpObject.h"
#include "RegExp.h"
#include "RegExpCache.h"
#include "StringRecursionChecker.h"
#include "UStringConcatenate.h"
namespace JSC {
ASSERT_CLASS_FITS_IN_CELL(RegExpPrototype);
static EncodedJSValue JSC_HOST_CALL regExpProtoFuncTest(ExecState*);
static EncodedJSValue JSC_HOST_CALL regExpProtoFuncExec(ExecState*);
static EncodedJSValue JSC_HOST_CALL regExpProtoFuncCompile(ExecState*);
static EncodedJSValue JSC_HOST_CALL regExpProtoFuncToString(ExecState*);
// ECMA 15.10.5
RegExpPrototype::RegExpPrototype(ExecState* exec, JSGlobalObject* globalObject, Structure* structure, Structure* functionStructure)
: RegExpObject(globalObject, structure, RegExp::create(&exec->globalData(), "", NoFlags))
{
putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 2, exec->propertyNames().compile, regExpProtoFuncCompile), DontEnum);
putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().exec, regExpProtoFuncExec), DontEnum);
putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().test, regExpProtoFuncTest), DontEnum);
putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 0, exec->propertyNames().toString, regExpProtoFuncToString), DontEnum);
}
// ------------------------------ Functions ---------------------------
EncodedJSValue JSC_HOST_CALL regExpProtoFuncTest(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&RegExpObject::s_info))
return throwVMTypeError(exec);
return JSValue::encode(asRegExpObject(thisValue)->test(exec));
}
EncodedJSValue JSC_HOST_CALL regExpProtoFuncExec(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&RegExpObject::s_info))
return throwVMTypeError(exec);
return JSValue::encode(asRegExpObject(thisValue)->exec(exec));
}
EncodedJSValue JSC_HOST_CALL regExpProtoFuncCompile(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&RegExpObject::s_info))
return throwVMTypeError(exec);
RefPtr<RegExp> regExp;
JSValue arg0 = exec->argument(0);
JSValue arg1 = exec->argument(1);
if (arg0.inherits(&RegExpObject::s_info)) {
if (!arg1.isUndefined())
return throwVMError(exec, createTypeError(exec, "Cannot supply flags when constructing one RegExp from another."));
regExp = asRegExpObject(arg0)->regExp();
} else {
UString pattern = !exec->argumentCount() ? UString("") : arg0.toString(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
RegExpFlags flags = NoFlags;
if (!arg1.isUndefined()) {
flags = regExpFlags(arg1.toString(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (flags == InvalidFlags)
return throwVMError(exec, createSyntaxError(exec, "Invalid flags supplied to RegExp constructor."));
}
regExp = exec->globalData().regExpCache()->lookupOrCreate(pattern, flags);
}
if (!regExp->isValid())
return throwVMError(exec, createSyntaxError(exec, regExp->errorMessage()));
asRegExpObject(thisValue)->setRegExp(regExp.release());
asRegExpObject(thisValue)->setLastIndex(0);
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL regExpProtoFuncToString(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&RegExpObject::s_info)) {
if (thisValue.inherits(&RegExpPrototype::s_info))
return JSValue::encode(jsNontrivialString(exec, "//"));
return throwVMTypeError(exec);
}
RegExpObject* thisObject = asRegExpObject(thisValue);
StringRecursionChecker checker(exec, thisObject);
if (EncodedJSValue earlyReturnValue = checker.earlyReturnValue())
return earlyReturnValue;
char postfix[5] = { '/', 0, 0, 0, 0 };
int index = 1;
if (thisObject->get(exec, exec->propertyNames().global).toBoolean(exec))
postfix[index++] = 'g';
if (thisObject->get(exec, exec->propertyNames().ignoreCase).toBoolean(exec))
postfix[index++] = 'i';
if (thisObject->get(exec, exec->propertyNames().multiline).toBoolean(exec))
postfix[index] = 'm';
UString source = thisObject->get(exec, exec->propertyNames().source).toString(exec);
// If source is empty, use "/(?:)/" to avoid colliding with comment syntax
return JSValue::encode(jsMakeNontrivialString(exec, "/", source.length() ? source : UString("(?:)"), postfix));
}
} // namespace JSC
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