diggler.util source code

1 /// Utilities not related to the bot framework.
2 module diggler.util;
3 
4 string pluralize(string word)(long amount)
5 {
6 	static immutable plural = word ~ "s";
7 	return amount == 1? word : plural;
8 }
9 
10 // Attributes
11 private template isAttribute(Attribute)
12 {
13 	enum isAttribute(alias other) = is(typeof(other) == Attribute);
14 	enum isAttribute(Other) = is(Other == Attribute);
15 }
16 
17 template hasAttribute(alias sym, Attribute)
18 {
19 	import std.typetuple : anySatisfy;
20 	enum hasAttribute = anySatisfy!(isAttribute!Attribute, __traits(getAttributes, sym));
21 }
22 
23 template getAttribute(alias sym, Attribute)
24 {
25 	import std.typetuple : Filter;
26 	enum getAttribute = Filter!(isAttribute!Attribute, __traits(getAttributes, sym))[0];
27 }
28 
29 // From LuaD's `luad.conversions.functions` module
30 template StripHeadQual(T : const(T*))
31 {
32 	alias const(T)* StripHeadQual;
33 }
34 
35 template StripHeadQual(T : const(T[]))
36 {
37 	alias const(T)[] StripHeadQual;
38 }
39 
40 template StripHeadQual(T : immutable(T*))
41 {
42 	alias immutable(T)* StripHeadQual;
43 }
44 
45 template StripHeadQual(T : immutable(T[]))
46 {
47 	alias immutable(T)[] StripHeadQual;
48 }
49 
50 template StripHeadQual(T : T[])
51 {
52 	alias T[] StripHeadQual;
53 }
54 
55 template StripHeadQual(T : T*)
56 {
57 	alias T* StripHeadQual;
58 }
59 
60 template StripHeadQual(T : T[N], size_t N)
61 {
62 	alias T[N] StripHeadQual;
63 }
64 
65 template StripHeadQual(T)
66 {
67 	alias T StripHeadQual;
68 }
69 
70 template FillableParameterTypeTuple(T)
71 {
72 	import std.typetuple : staticMap;
73 	import std.traits : ParameterTypeTuple;
74 	alias staticMap!(StripHeadQual, ParameterTypeTuple!T) FillableParameterTypeTuple;
75 }