/*
* Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package sun.tools.tree;
import sun.tools.java.*;
import sun.tools.asm.Assembler;
import java.io.PrintStream;
import java.util.Hashtable;
/**
* WARNING: The contents of this source file are not part of any
* supported API. Code that depends on them does so at its own risk:
* they are subject to change or removal without notice.
*/
public
class SuperExpression extends ThisExpression {
/**
* Constructor
*/
public SuperExpression(long where) {
super(SUPER, where);
}
/**
* Constructor for "outer.super()"
*/
public SuperExpression(long where, Expression outerArg) {
super(where, outerArg);
op = SUPER;
}
public SuperExpression(long where, Context ctx) {
super(where, ctx);
op = SUPER;
}
/**
* Check expression
*/
public Vset checkValue(Environment env, Context ctx, Vset vset, Hashtable exp) {
vset = checkCommon(env, ctx, vset, exp);
if (type != Type.tError) {
// "super" is not allowed in this context:
env.error(where, "undef.var.super", idSuper);
}
return vset;
}
/**
* Check if the present name is part of a scoping prefix.
*/
public Vset checkAmbigName(Environment env, Context ctx,
Vset vset, Hashtable exp,
UnaryExpression loc) {
return checkCommon(env, ctx, vset, exp);
}
/** Common code for checkValue and checkAmbigName */
private Vset checkCommon(Environment env, Context ctx, Vset vset, Hashtable exp) {
ClassDeclaration superClass = ctx.field.getClassDefinition().getSuperClass();
if (superClass == null) {
env.error(where, "undef.var", idSuper);
type = Type.tError;
return vset;
}
vset = super.checkValue(env, ctx, vset, exp);
type = superClass.getType();
return vset;
}
}