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
#![recursion_limit="128"]
extern crate syn;
#[macro_use]
extern crate quote;
extern crate proc_macro;
extern crate proc_macro2;
mod helpers;
mod as_ref_str;
mod display;
mod to_string;
mod from_string;
mod enum_iter;
mod enum_messages;
mod enum_properties;
use std::env;
use proc_macro2::TokenStream;
fn debug_print_generated(ast: &syn::DeriveInput, toks: &TokenStream) {
let debug = env::var("STRUM_DEBUG");
if let Ok(s) = debug {
if s == "1" {
println!("{}", toks);
}
if ast.ident == s {
println!("{}", toks);
}
}
}
#[proc_macro_derive(EnumString,attributes(strum))]
pub fn from_string(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = from_string::from_string_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(AsRefStr,attributes(strum))]
pub fn as_ref_str(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = as_ref_str::as_ref_str_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(AsStaticStr,attributes(strum))]
pub fn as_static_str(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = as_ref_str::as_static_str_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(ToString,attributes(strum))]
pub fn to_string(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = to_string::to_string_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(Display,attributes(strum))]
pub fn display(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = display::display_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(EnumIter,attributes(strum))]
pub fn enum_iter(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = enum_iter::enum_iter_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(EnumMessage,attributes(strum))]
pub fn enum_messages(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = enum_messages::enum_message_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}
#[proc_macro_derive(EnumProperty,attributes(strum))]
pub fn enum_properties(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let ast = syn::parse(input).unwrap();
let toks = enum_properties::enum_properties_inner(&ast);
debug_print_generated(&ast, &toks);
toks.into()
}