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
|
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Syntax extensions in the Rust compiler.
#![crate_name = "syntax_ext"]
#![unstable(feature = "rustc_private", issue = "27812")]
#![crate_type = "dylib"]
#![crate_type = "rlib"]
#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
html_root_url = "https://doc.rust-lang.org/nightly/")]
#![cfg_attr(not(stage0), deny(warnings))]
#![feature(rustc_private)]
#![feature(staged_api)]
extern crate fmt_macros;
#[macro_use] extern crate log;
#[macro_use]
extern crate syntax;
use syntax::ext::base::{MacroExpanderFn, NormalTT};
use syntax::ext::base::{SyntaxEnv, SyntaxExtension};
use syntax::parse::token::intern;
mod asm;
mod cfg;
mod concat;
mod concat_idents;
mod env;
mod format;
mod log_syntax;
mod trace_macros;
// for custom_derive
pub mod deriving;
pub fn register_builtins(env: &mut SyntaxEnv) {
// utility function to simplify creating NormalTT syntax extensions
fn builtin_normal_expander(f: MacroExpanderFn) -> SyntaxExtension {
NormalTT(Box::new(f), None, false)
}
env.insert(intern("asm"),
builtin_normal_expander(asm::expand_asm));
env.insert(intern("cfg"),
builtin_normal_expander(cfg::expand_cfg));
env.insert(intern("concat"),
builtin_normal_expander(concat::expand_syntax_ext));
env.insert(intern("concat_idents"),
builtin_normal_expander(concat_idents::expand_syntax_ext));
env.insert(intern("env"),
builtin_normal_expander(env::expand_env));
env.insert(intern("option_env"),
builtin_normal_expander(env::expand_option_env));
env.insert(intern("format_args"),
// format_args uses `unstable` things internally.
NormalTT(Box::new(format::expand_format_args), None, true));
env.insert(intern("log_syntax"),
builtin_normal_expander(log_syntax::expand_syntax_ext));
env.insert(intern("trace_macros"),
builtin_normal_expander(trace_macros::expand_trace_macros));
deriving::register_all(env);
}
|
