djinja.exception source code

1 /**
2   * Djinja Exceptions
3   *
4   * Copyright:
5   *     Copyright (c) 2018, Maxim Tyapkin.
6   * Authors:
7   *     Maxim Tyapkin
8   * License:
9   *     This software is licensed under the terms of the BSD 3-clause license.
10   *     The full terms of the license can be found in the LICENSE.md file.
11   */
12 
13 module djinja.exception;
14 
15 private
16 {
17     import djinja.lexer : Position;
18 }
19 
20 
21 class JinjaException : Exception
22 {
23     this(string msg, string file = __FILE__, size_t line = __LINE__)
24     {
25         super(msg, file, line);
26     }
27 }
28 
29 
30 
31 class JinjaLexerException : JinjaException
32 {
33     this(string msg, string file = __FILE__, size_t line = __LINE__)
34     {
35         super(msg, file, line);
36     }
37 }
38 
39 
40 
41 class JinjaParserException : JinjaException
42 {
43     this(string msg, string file = __FILE__, size_t line = __LINE__)
44     {
45         super(msg, file, line);
46     }
47 }
48 
49 
50 
51 class JinjaRenderException : JinjaException
52 {
53     this(string msg, string file = __FILE__, size_t line = __LINE__)
54     {
55         super(msg, file, line);
56     }
57 }
58 
59 
60 void assertJinja(E : JinjaException)(bool expr, string msg = "", Position pos = Position.init, string file = __FILE__, size_t line = __LINE__)
61 {
62     if (!expr)
63     {
64         if (pos == Position.init)
65             throw new E(msg, file, line);
66         else
67             throw new E(pos.toString ~ ": " ~ msg, file, line); 
68     }
69 }
70 
71 
72 alias assertJinjaException = assertJinja!JinjaException;
73 alias assertJinjaLexer = assertJinja!JinjaLexerException;
74 alias assertJinjaParser = assertJinja!JinjaParserException;
75 alias assertJinjaRender = assertJinja!JinjaRenderException;