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/* valavariabledeclarator.vala
*
* Copyright (C) 2006-2007 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 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 variable declarator in the source code.
*/
public class Vala.VariableDeclarator : Symbol, Invokable {
/**
* The optional initializer expression.
*/
public Expression initializer {
get {
return _initializer;
}
set {
_initializer = value;
if (_initializer != null) {
_initializer.parent_node = this;
}
}
}
/**
* The variable type.
*/
public TypeReference type_reference { get; set; }
private Expression _initializer;
/**
* Creates a new variable declarator.
*
* @param name name of the variable
* @param init optional initializer expression
* @param source reference to source code
* @return newly created variable declarator
*/
public VariableDeclarator (construct string! name, construct Expression initializer = null, construct SourceReference source_reference = null) {
}
public override void accept (CodeVisitor! visitor) {
if (initializer != null) {
initializer.accept (visitor);
visitor.visit_end_full_expression (initializer);
}
if (type_reference != null) {
type_reference.accept (visitor);
}
visitor.visit_variable_declarator (this);
}
public List<weak FormalParameter> get_parameters () {
if (!is_invokable ()) {
return null;
}
var cb = (Callback) type_reference.data_type;
return cb.get_parameters ();
}
public TypeReference get_return_type () {
if (!is_invokable ()) {
return null;
}
var cb = (Callback) type_reference.data_type;
return cb.return_type;
}
public bool is_invokable () {
return (type_reference.data_type is Callback);
}
public override void replace (CodeNode! old_node, CodeNode! new_node) {
if (initializer == old_node) {
initializer = (Expression) new_node;
}
}
}
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