dgamevfs.exceptions source code

1 
2 //          Copyright Ferdinand Majerech 2011 - 2012.
3 // Distributed under the Boost Software License, Version 1.0.
4 //    (See accompanying file LICENSE_1_0.txt or copy at
5 //          http://www.boost.org/LICENSE_1_0.txt)
6 
7 
8 /// Exceptions thrown by D:GameVFS and exception related code.
9 module dgamevfs.exceptions;
10 
11 
12 import std.conv;
13 
14 
15 /// Parent class of all exceptions thrown at VFS errors.
16 abstract class VFSException : Exception
17 {
18     public this(string msg, string file = __FILE__, int line = __LINE__) @safe pure nothrow
19     {
20         super(msg, file, line);
21     }
22 }
23 
24 /// Exception thrown when a file/directory was not found.
25 class VFSNotFoundException : VFSException 
26 {
27     public this(string msg, string file = __FILE__, int line = __LINE__) @safe pure nothrow
28     {
29         super(msg, file, line);
30     }
31 }
32 
33 /// Exception thrown when an invalid path or file/directory name is detected.
34 class VFSInvalidPathException : VFSException 
35 {
36     public this(string msg, string file = __FILE__, int line = __LINE__) @safe pure nothrow
37     {
38         super(msg, file, line);
39     }
40 }
41 
42 /// Exception thrown at input/output errors.
43 class VFSIOException : VFSException 
44 {
45     public this(string msg, string file = __FILE__, int line = __LINE__) @safe pure nothrow
46     {
47         super(msg, file, line);
48     }
49 }
50 
51 /// Exception thrown at mounting errors.
52 class VFSMountException : VFSException 
53 {
54     public this(string msg, string file = __FILE__, int line = __LINE__) @safe pure nothrow
55     {
56         super(msg, file, line);
57     }
58 }
59 
60 package:
61 
62 // Template for shortcut functions to throw VFS exceptions.
63 package template error(E) if(is(E : VFSException))
64 {
65     E error(string file = __FILE__, int line = __LINE__, A ...)(A args) @safe pure
66     {
67         string message;
68         foreach(arg; args) { message ~= to!string(arg); }
69         return new E(message, file, line);
70     }
71 }
72 
73 alias error!VFSNotFoundException    notFound;
74 alias error!VFSInvalidPathException invalidPath;
75 alias error!VFSIOException          ioError;
76 alias error!VFSMountException       mountError;
77