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/* valabooleanliteral.vala
*
* Copyright (C) 2006-2010 Jürg Billeter
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
*/
using GLib;
/**
* Represents a literal boolean, i.e. true or false.
*/
public class Vala.BooleanLiteral : Literal {
/**
* The literal value.
*/
public bool value { get; set; }
/**
* Creates a new boolean literal.
*
* @param b boolean value
* @param source reference to source code
* @return newly created boolean literal
*/
public BooleanLiteral (bool b, SourceReference? source = null) {
value = b;
source_reference = source;
}
public override void accept (CodeVisitor visitor) {
visitor.visit_boolean_literal (this);
visitor.visit_expression (this);
}
public override string to_string () {
if (value) {
return "true";
} else {
return "false";
}
}
public override bool is_pure () {
return true;
}
public override bool check (SemanticAnalyzer analyzer) {
if (checked) {
return !error;
}
checked = true;
value_type = analyzer.bool_type;
return !error;
}
public override void emit (CodeGenerator codegen) {
codegen.visit_boolean_literal (this);
codegen.visit_expression (this);
}
}
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