/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.expr;
import com.caucho.quercus.Location;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.parser.QuercusParser;
import java.io.IOException;
/**
* Represents a PHP error suppression
*/
public class UnarySuppressErrorExpr extends AbstractUnaryExpr {
public UnarySuppressErrorExpr(Location location, Expr expr)
{
super(location, expr);
}
public UnarySuppressErrorExpr(Expr expr)
{
super(expr);
}
/**
* Creates the assignment.
*/
public Expr createAssign(QuercusParser parser, Expr value)
throws IOException
{
// php/03j2
return new UnarySuppressErrorExpr(parser.getLocation(),
getExpr().createAssign(parser, value));
}
/**
* Creates the assignment.
*/
public Expr createAssignRef(QuercusParser parser,
Expr value
)
throws IOException
{
// php/03j2
return new UnarySuppressErrorExpr(parser.getLocation(),
getExpr().createAssignRef(parser, value));
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public Value eval(Env env)
{
int oldErrorMask = env.setErrorMask(0);
try {
return _expr.eval(env);
} finally {
env.setErrorMask(oldErrorMask);
}
}
/**
* Evaluates the expression as a boolean.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public boolean evalBoolean(Env env)
{
int oldErrorMask = env.setErrorMask(0);
try {
return _expr.evalBoolean(env);
} finally {
env.setErrorMask(oldErrorMask);
}
}
/**
* Evaluates the expression as a string.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public String evalString(Env env)
{
int oldErrorMask = env.setErrorMask(0);
try {
return _expr.evalString(env);
} finally {
env.setErrorMask(oldErrorMask);
}
}
/**
* Evaluates the expression, copying the results as necessary
*
* @param env the calling environment.
*
* @return the expression value.
*/
public Value evalCopy(Env env)
{
int oldErrorMask = env.setErrorMask(0);
try {
return _expr.evalCopy(env);
} finally {
env.setErrorMask(oldErrorMask);
}
}
public String toString()
{
return "@" + _expr;
}
}