Line data Source code
1 : /* valaversion.vala
2 : *
3 : * Copyright (C) 2018 Rico Tzschichholz
4 : *
5 : * This library is free software; you can redistribute it and/or
6 : * modify it under the terms of the GNU Lesser General Public
7 : * License as published by the Free Software Foundation; either
8 : * version 2.1 of the License, or (at your option) any later version.
9 :
10 : * This library is distributed in the hope that it will be useful,
11 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 : * Lesser General Public License for more details.
14 :
15 : * You should have received a copy of the GNU Lesser General Public
16 : * License along with this library; if not, write to the Free Software
17 : * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 : *
19 : * Author:
20 : * Rico Tzschichholz <ricotz@ubuntu.com>
21 : */
22 :
23 : namespace Vala {
24 : /**
25 : * Like get_major_version, but from the headers used at application compile time,
26 : * rather than from the library linked against at application run time
27 : */
28 : public const int MAJOR_VERSION = 0;
29 : /**
30 : * Like get_minor_version, but from the headers used at application compile time,
31 : * rather than from the library linked against at application run time
32 : */
33 : public const int MINOR_VERSION = 57;
34 : /**
35 : * Like get_micro_version, but from the headers used at application compile time,
36 : * rather than from the library linked against at application run time
37 : */
38 : public const int MICRO_VERSION = 0;
39 :
40 : /**
41 : * The API version string
42 : */
43 : public const string API_VERSION = "0.58";
44 :
45 : /**
46 : * The full build-version string generated by the build-system
47 : */
48 : public const string BUILD_VERSION = "0.57.0.298-a8cae1";
49 :
50 : /**
51 : * Returns the major version number of the vala library.
52 : *
53 : * This function is in the library, so it represents the GTK+
54 : * library your code is running against.
55 : *
56 : * @return the major version number of the vala library
57 : */
58 : public uint get_major_version () {
59 0 : return MAJOR_VERSION;
60 : }
61 :
62 : /**
63 : * Returns the minor version number of the vala library.
64 : *
65 : * This function is in the library, so it represents the vala
66 : * library your code is are running against.
67 : *
68 : * @return the minor version number of the vala library
69 : */
70 : public uint get_minor_version () {
71 0 : return MINOR_VERSION;
72 : }
73 :
74 : /**
75 : * Returns the micro version number of the vala library.
76 : *
77 : * This function is in the library, so it represents the vala
78 : * library your code is running against.
79 : *
80 : * @return the micro version number of the vala library
81 : */
82 : public uint get_micro_version () {
83 0 : return MICRO_VERSION;
84 : }
85 :
86 : /**
87 : * Returns the full build-version string of the vala library.
88 : *
89 : * This function is in the library, so it represents the vala
90 : * library your code is running against.
91 : *
92 : * @return the full build-version string of the vala library
93 : */
94 : public unowned string get_build_version () {
95 3005 : return BUILD_VERSION;
96 : }
97 :
98 : /**
99 : * Checks that the vala library in use is compatible with the given version.
100 : *
101 : * This function is in the library, so it represents the vala
102 : * library your code is running against.
103 : *
104 : * @param required_major the required major version
105 : * @param required_minor the required minor version
106 : * @param required_micro the required micro version
107 : * @return null if the vala library is compatible with the given version,
108 : * or a string describing the version mismatch.
109 : */
110 : public unowned string? check_version (uint required_major, uint required_minor, uint required_micro)
111 : {
112 0 : uint effective_micro = 100 * MINOR_VERSION + MICRO_VERSION;
113 0 : uint required_effective_micro = 100 * required_minor + required_micro;
114 :
115 0 : if (required_major > MAJOR_VERSION)
116 0 : return "vala version too old (major mismatch)";
117 :
118 0 : if (required_effective_micro > effective_micro)
119 0 : return "vala version too old (micro mismatch)";
120 :
121 0 : return null;
122 : }
123 : }
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