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/* valamemberaccess.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 2.1 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;
using Gee;
/**
* Represents an access to a type member in the source code.
*/
public class Vala.MemberAccess : Expression {
/**
* The parent of the member.
*/
public Expression inner {
get {
return _inner;
}
set {
_inner = value;
if (_inner != null) {
_inner.parent_node = this;
}
}
}
/**
* The name of the member.
*/
public string member_name { get; set; }
/**
* Pointer member access.
*/
public bool pointer_member_access { get; set; }
/**
* Represents access to an instance member without an actual instance,
* e.g. `MyClass.an_instance_method`.
*/
public bool prototype_access { get; set; }
/**
* Specifies whether the member is used for object creation.
*/
public bool creation_member { get; set; }
private Expression _inner;
private Gee.List<DataType> type_argument_list = new ArrayList<DataType> ();
/**
* Creates a new member access expression.
*
* @param inner parent of the member
* @param member_name member name
* @param source_reference reference to source code
* @return newly created member access expression
*/
public MemberAccess (construct Expression inner, construct string member_name, construct SourceReference source_reference = null) {
}
public MemberAccess.simple (construct string member_name, construct SourceReference source_reference = null) {
}
public MemberAccess.pointer (construct Expression inner, construct string member_name, construct SourceReference source_reference = null) {
pointer_member_access = true;
}
/**
* Appends the specified type as generic type argument.
*
* @param arg a type reference
*/
public void add_type_argument (DataType arg) {
type_argument_list.add (arg);
arg.parent_node = this;
}
/**
* Returns a copy of the list of generic type arguments.
*
* @return type argument list
*/
public Collection<DataType> get_type_arguments () {
return new ReadOnlyCollection<DataType> (type_argument_list);
}
public override void accept (CodeVisitor visitor) {
if (inner != null) {
inner.accept (visitor);
}
foreach (DataType type_arg in type_argument_list) {
type_arg.accept (visitor);
}
visitor.visit_member_access (this);
}
public override string to_string () {
if (inner == null) {
return member_name;
} else {
return "%s.%s".printf (inner.to_string (), member_name);
}
}
public override void replace_expression (Expression old_node, Expression new_node) {
if (inner == old_node) {
inner = new_node;
}
}
public override bool is_pure () {
// accessing property could have side-effects
return (inner == null || inner.is_pure ()) && !(symbol_reference is Property);
}
public override void replace_type (DataType old_type, DataType new_type) {
for (int i = 0; i < type_argument_list.size; i++) {
if (type_argument_list[i] == old_type) {
type_argument_list[i] = new_type;
return;
}
}
}
}
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