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91 lines
2.3 KiB
91 lines
2.3 KiB
//==============================================================================
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//
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// Copyright (c) 2002-
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// Authors:
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// * Dave Parker <d.a.parker@cs.bham.ac.uk> (University of Birmingham/Oxford)
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//
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//------------------------------------------------------------------------------
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//
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// This file is part of PRISM.
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//
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// PRISM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// PRISM is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with PRISM; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//==============================================================================
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package parser.ast;
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import parser.type.*;
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import parser.visitor.ASTVisitor;
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import prism.PrismLangException;
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public class DeclarationIntUnbounded extends DeclarationType
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{
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public DeclarationIntUnbounded()
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{
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// The type stored for a Declaration/DeclarationType object
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// is static - it is not computed during type checking.
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// (But we re-use the existing "type" field for this purpose)
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setType(TypeInt.getInstance());
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}
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/**
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* Return the default start value for a variable of this type.
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*/
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public Expression getDefaultStart()
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{
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return Expression.Int(0);
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}
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/* TODO:
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@Override
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public Expression getStart(ModulesFile parent)
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{
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if (parent != null && parent.getInitialStates() != null)
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return null;
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return start != null ? start : low;
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}
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*/
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// Methods required for ASTElement:
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/**
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* Visitor method.
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*/
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public Object accept(ASTVisitor v) throws PrismLangException
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{
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return v.visit(this);
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}
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/**
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* Convert to string.
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*/
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@Override
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public String toString()
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{
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return "int";
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}
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/**
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* Perform a deep copy.
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*/
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@Override
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public ASTElement deepCopy()
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{
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DeclarationIntUnbounded ret = new DeclarationIntUnbounded();
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ret.setPosition(this);
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return ret;
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}
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}
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