1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/* valaerrortype.vala
*
* Copyright (C) 2008-2010 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>
* Raffaele Sandrini <raffaele@sandrini.ch>
*/
using GLib;
/**
* A class type.
*/
public class Vala.ErrorType : ReferenceType {
/**
* The error domain or null for generic error.
*/
public weak ErrorDomain? error_domain {
get {
return symbol as ErrorDomain;
}
}
/**
* The error code or null for generic error.
*/
public weak ErrorCode? error_code { get; set; }
public bool dynamic_error { get; set; }
public ErrorType (ErrorDomain? error_domain, ErrorCode? error_code, SourceReference? source_reference = null) {
base ((Symbol) error_domain ?? CodeContext.get ().root.scope.lookup ("GLib").scope.lookup ("Error"), source_reference);
this.error_code = error_code;
}
public override bool compatible (DataType target_type) {
/* temporarily ignore type parameters */
if (target_type is GenericType) {
return true;
}
unowned ErrorType? et = target_type as ErrorType;
/* error types are only compatible to error types */
if (et == null) {
return false;
}
/* every error type is compatible to the base error type */
if (et.error_domain == null) {
return true;
}
/* otherwise the error_domain has to be equal */
if (et.error_domain != error_domain) {
return false;
}
if (et.error_code == null) {
return true;
}
return et.error_code == error_code;
}
public override DataType copy () {
var result = new ErrorType (error_domain, error_code, source_reference);
result.value_owned = value_owned;
result.nullable = nullable;
result.dynamic_error = dynamic_error;
return result;
}
public override bool equals (DataType type2) {
unowned ErrorType? et = type2 as ErrorType;
if (et == null) {
return false;
}
return error_domain == et.error_domain;
}
public override Symbol? get_member (string member_name) {
return CodeContext.get ().analyzer.gerror_type.scope.lookup (member_name);
}
public override bool is_reference_type_or_type_parameter () {
return true;
}
public override bool check (CodeContext context) {
if (error_domain != null) {
return error_domain.check (context);
}
return true;
}
}
|
