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/*
* This file is part of the KDE libraries
* Copyright (C) 2008 Harri Porten (porten@kde.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 "kjsinterpreter.h"
#include "kjsprivate.h"
#include "kjs/interpreter.h"
#include "kjs/completion.h"
#include "kjs/object.h"
#include "kjs/JSVariableObject.h"
#include <QString>
#include <stdio.h>
using namespace KJS;
class KJSResultHandle
{
public:
KJSResultHandle() : rc(1), val(KJSUndefined()) { }
int rc;
KJSObject val;
UString errMsg;
void ref() { ++rc; }
void deref() { if (--rc == 0) delete this; }
};
KJSResult::KJSResult()
: hnd(new KJSResultHandle())
{
}
KJSResult::KJSResult(const KJSResult& r)
{
hnd = r.hnd;
hnd->ref();
}
KJSResult& KJSResult::operator=(const KJSResult& r)
{
if (hnd != r.hnd) {
r.hnd->ref();
hnd->deref();
hnd = r.hnd;
}
return *this;
}
KJSResult::~KJSResult()
{
hnd->deref();
}
bool KJSResult::isException() const
{
return !hnd->errMsg.isNull();
}
QString KJSResult::errorMessage() const
{
return toQString(hnd->errMsg);
}
KJSObject KJSResult::value() const
{
return hnd->val;
}
KJSInterpreter::KJSInterpreter()
: globCtx(0)
{
Interpreter* ip = new Interpreter();
ip->ref();
hnd = INTERPRETER_HANDLE(ip);
}
KJSInterpreter::KJSInterpreter(const KJSGlobalObject& global)
: globCtx(0)
{
JSValue* gv = JSVALUE(&global);
assert(gv->isObject());
JSObject* go = static_cast<JSObject*>(gv);
assert(go->isGlobalObject());
Interpreter* ip = new Interpreter(static_cast<JSGlobalObject*>(go));
ip->ref();
assert(go->prototype()->isObject());
JSObject* p = static_cast<JSObject*>(go->prototype());
JSObject* objectProto = ip->builtinObjectPrototype();
p->setPrototype(objectProto);
hnd = INTERPRETER_HANDLE(ip);
}
KJSInterpreter::KJSInterpreter(const KJSInterpreter& other)
: globCtx(0)
{
Interpreter* ip = INTERPRETER(&other);
ip->ref();
hnd = INTERPRETER_HANDLE(ip);
globCtx.hnd = EXECSTATE_HANDLE(ip->globalExec());
}
KJSInterpreter& KJSInterpreter::operator=(const KJSInterpreter& other)
{
Interpreter* thisIp = INTERPRETER(this);
Interpreter* otherIp = INTERPRETER(&other);
if (otherIp != thisIp) {
otherIp->ref();
thisIp->deref();
hnd = INTERPRETER_HANDLE(otherIp);
globCtx.hnd = EXECSTATE_HANDLE(otherIp->globalExec());
}
return *this;
}
KJSInterpreter::KJSInterpreter(KJSInterpreterHandle* h)
: hnd(h), globCtx(0)
{
Interpreter* ip = INTERPRETER(this);
globCtx.hnd = EXECSTATE_HANDLE(ip->globalExec());
}
KJSInterpreter::~KJSInterpreter()
{
Interpreter* ip = INTERPRETER(this);
ip->deref();
ip = 0;
}
KJSContext* KJSInterpreter::globalContext()
{
Interpreter* ip = INTERPRETER(this);
globCtx.hnd = EXECSTATE_HANDLE(ip->globalExec());
return &globCtx;
}
KJSObject KJSInterpreter::globalObject()
{
Interpreter* ip = INTERPRETER(this);
return KJSObject(JSVALUE_HANDLE(ip->globalObject()));
}
KJSResult KJSInterpreter::evaluate(const QString& sourceURL,
int startingLineNumber,
const QString& code,
KJSObject* thisValue)
{
Interpreter* ip = INTERPRETER(this);
JSValue* tv = thisValue ? JSVALUE(thisValue) : 0;
KJS::Completion c = ip->evaluate(toUString(sourceURL), startingLineNumber,
toUString(code), tv);
KJSResult res;
if (c.complType() == Throw) {
ExecState* exec = ip->globalExec();
UString msg = c.value()->toString(exec);
#if 0
JSObject* resObj = c.value()->toObject(exec);
CString message = resObj->toString(exec).UTF8String();
int line = resObj->toObject(exec)->get(exec, "line")->toUInt32(exec);
if (!sourceURL.isEmpty())
fprintf(stderr, "%s (line %d): ", qPrintable(sourceURL), line);
fprintf(stderr, "%s\n", msg.c_str());
#endif
fprintf(stderr, "evaluate() threw an exception\n");
res.hnd->errMsg = msg;
} else {
if (c.isValueCompletion())
res.hnd->val = KJSObject(JSVALUE_HANDLE(c.value()));
}
return res;
}
KJSResult KJSInterpreter::evaluate(const QString& code,
KJSObject* thisValue)
{
return evaluate("<string>", 0, code, thisValue);
}
bool KJSInterpreter::normalizeCode(const QString& code, QString* normalized,
int* errLine, QString* errMsg)
{
assert(normalized);
UString codeOut, msg;
bool success = Interpreter::normalizeCode(toUString(code), &codeOut,
errLine, &msg);
*normalized = toQString(codeOut);
if (errMsg)
*errMsg = toQString(msg);
return success;
}
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