1 //! This crate contains implementations of built-in macros and other code generating facilities
2 //! injecting code into the crate before it is lowered to HIR.
4 #![allow(rustc::potential_query_instability)]
5 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
6 #![feature(array_windows)]
7 #![feature(box_patterns)]
8 #![feature(decl_macro)]
9 #![feature(if_let_guard)]
10 #![feature(is_some_and)]
11 #![feature(is_sorted)]
12 #![feature(let_chains)]
13 #![feature(proc_macro_internals)]
14 #![feature(proc_macro_quote)]
15 #![recursion_limit = "256"]
17 extern crate proc_macro;
22 use crate::deriving::*;
24 use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};
25 use rustc_expand::proc_macro::BangProcMacro;
26 use rustc_span::symbol::sym;
28 mod alloc_error_handler;
51 pub mod cmdline_attrs;
52 pub mod proc_macro_harness;
53 pub mod standard_library_imports;
56 pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) {
57 let mut register = |name, kind| resolver.register_builtin_macro(name, kind);
58 macro register_bang($($name:ident: $f:expr,)*) {
59 $(register(sym::$name, SyntaxExtensionKind::LegacyBang(Box::new($f as MacroExpanderFn)));)*
61 macro register_attr($($name:ident: $f:expr,)*) {
62 $(register(sym::$name, SyntaxExtensionKind::LegacyAttr(Box::new($f)));)*
64 macro register_derive($($name:ident: $f:expr,)*) {
65 $(register(sym::$name, SyntaxExtensionKind::LegacyDerive(Box::new(BuiltinDerive($f))));)*
70 assert: assert::expand_assert,
72 column: source_util::expand_column,
73 compile_error: compile_error::expand_compile_error,
74 concat_bytes: concat_bytes::expand_concat_bytes,
75 concat_idents: concat_idents::expand_concat_idents,
76 concat: concat::expand_concat,
78 file: source_util::expand_file,
79 format_args_nl: format::expand_format_args_nl,
80 format_args: format::expand_format_args,
81 const_format_args: format::expand_format_args,
82 global_asm: asm::expand_global_asm,
83 include_bytes: source_util::expand_include_bytes,
84 include_str: source_util::expand_include_str,
85 include: source_util::expand_include,
86 line: source_util::expand_line,
87 log_syntax: log_syntax::expand_log_syntax,
88 module_path: source_util::expand_mod,
89 option_env: env::expand_option_env,
90 core_panic: edition_panic::expand_panic,
91 std_panic: edition_panic::expand_panic,
92 unreachable: edition_panic::expand_unreachable,
93 stringify: source_util::expand_stringify,
94 trace_macros: trace_macros::expand_trace_macros,
98 alloc_error_handler: alloc_error_handler::expand,
99 bench: test::expand_bench,
100 cfg_accessible: cfg_accessible::Expander,
101 cfg_eval: cfg_eval::expand,
102 derive: derive::Expander(false),
103 derive_const: derive::Expander(true),
104 global_allocator: global_allocator::expand,
105 test: test::expand_test,
106 test_case: test::expand_test_case,
110 Clone: clone::expand_deriving_clone,
111 Copy: bounds::expand_deriving_copy,
112 Debug: debug::expand_deriving_debug,
113 Default: default::expand_deriving_default,
114 Eq: eq::expand_deriving_eq,
115 Hash: hash::expand_deriving_hash,
116 Ord: ord::expand_deriving_ord,
117 PartialEq: partial_eq::expand_deriving_partial_eq,
118 PartialOrd: partial_ord::expand_deriving_partial_ord,
119 RustcDecodable: decodable::expand_deriving_rustc_decodable,
120 RustcEncodable: encodable::expand_deriving_rustc_encodable,
123 let client = proc_macro::bridge::client::Client::expand1(proc_macro::quote);
124 register(sym::quote, SyntaxExtensionKind::Bang(Box::new(BangProcMacro { client })));