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/* valamethodtype.vala
*
* Copyright (C) 2007-2008 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;
/**
* The type of a method referencea.
*/
public class Vala.MethodType : DataType {
public Method method_symbol { get; set; }
public MethodType (Method method_symbol) {
this.method_symbol = method_symbol;
}
public override bool is_invokable () {
return true;
}
public override DataType? get_return_type () {
return method_symbol.return_type;
}
public override List<Parameter>? get_parameters () {
return method_symbol.get_parameters ();
}
public override DataType copy () {
return new MethodType (method_symbol);
}
public override bool compatible (DataType target_type) {
var dt = target_type as DelegateType;
if (dt == null) {
// method types incompatible to anything but delegates
return false;
}
return dt.delegate_symbol.matches_method (method_symbol, dt);
}
public override string to_qualified_string (Scope? scope) {
return method_symbol.get_full_name ();
}
public override Symbol? get_member (string member_name) {
if (method_symbol.coroutine && member_name == "begin") {
return method_symbol;
} else if (method_symbol.coroutine && member_name == "end") {
return method_symbol;
} else if (method_symbol.coroutine && member_name == "callback") {
return method_symbol.get_callback_method ();
}
return null;
}
public string to_prototype_string (bool with_type_parameters = false) {
var proto = "%s %s (".printf (get_return_type ().to_string (), this.to_string ());
int i = 1;
foreach (Parameter param in get_parameters ()) {
if (i > 1) {
proto += ", ";
}
if (param.ellipsis) {
proto += "...";
continue;
}
if (param.direction == ParameterDirection.IN) {
if (param.variable_type.value_owned) {
proto += "owned ";
}
} else {
if (param.direction == ParameterDirection.REF) {
proto += "ref ";
} else if (param.direction == ParameterDirection.OUT) {
proto += "out ";
}
if (param.variable_type.is_weak ()) {
proto += "unowned ";
}
}
proto = "%s%s %s".printf (proto, param.variable_type.to_qualified_string (), param.name);
if (param.initializer != null) {
proto = "%s = %s".printf (proto, param.initializer.to_string ());
}
i++;
}
return proto + ")";
}
}
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