runtime/Completion.cpp

   1 /*
   2  *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
   4  *  Copyright (C) 2003, 2007 Apple Inc.
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Library General Public
   8  *  License as published by the Free Software Foundation; either
   9  *  version 2 of the License, or (at your option) any later version.
  10  *
  11  *  This library is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *  Library General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Library General Public License
  17  *  along with this library; see the file COPYING.LIB.  If not, write to
  18  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  *  Boston, MA 02110-1301, USA.
  20  *
  21  */
  22
  23 #include "config.h"
  24 #include "Completion.h"
  25
  26 #include "CallFrame.h"
  27 #include "JSGlobalObject.h"
  28 #include "JSLock.h"
  29 #include "Interpreter.h"
  30 #include "Parser.h"
  31 #include "Debugger.h"
  32 #include <stdio.h>
  33
  34 #if !PLATFORM(WIN_OS)
  35 #include <unistd.h>
  36 #endif
  37
  38 namespace JSC {
  39
  40 Completion checkSyntax(ExecState* exec, const SourceCode& source)
  41 {
  42     JSLock lock(exec);
  43
  44     int errLine;
  45     UString errMsg;
  46
  47     RefPtr<ProgramNode> progNode = exec->globalData().parser->parse<ProgramNode>(exec, exec->dynamicGlobalObject()->debugger(), source, &errLine, &errMsg);
  48     if (!progNode)
  49         return Completion(Throw, Error::create(exec, SyntaxError, errMsg, errLine, source.provider()->asID(), source.provider()->url()));
  50     return Completion(Normal);
  51 }
  52
  53 Completion evaluate(ExecState* exec, ScopeChain& scopeChain, const SourceCode& source, JSValue thisValue)
  54 {
  55     JSLock lock(exec);
  56
  57     int errLine;
  58     UString errMsg;
  59     RefPtr<ProgramNode> programNode = exec->globalData().parser->parse<ProgramNode>(exec, exec->dynamicGlobalObject()->debugger(), source, &errLine, &errMsg);
  60
  61     if (!programNode)
  62         return Completion(Throw, Error::create(exec, SyntaxError, errMsg, errLine, source.provider()->asID(), source.provider()->url()));
  63
  64     JSObject* thisObj = (!thisValue || thisValue.isUndefinedOrNull()) ? exec->dynamicGlobalObject() : thisValue.toObject(exec);
  65
  66     JSValue exception;
  67     JSValue result = exec->interpreter()->execute(programNode.get(), exec, scopeChain.node(), thisObj, &exception);
  68
  69     if (exception) {
  70         if (exception.isObject() && asObject(exception)->isWatchdogException())
  71             return Completion(Interrupted, exception);
  72         return Completion(Throw, exception);
  73     }
  74     return Completion(Normal, result);
  75 }
  76
  77 } // namespace JSC