src/libsyntax_ext/lib.rs

   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.
   3
   4 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
   5
   6 #![feature(crate_visibility_modifier)]
   7 #![feature(decl_macro)]
   8 #![feature(mem_take)]
   9 #![feature(nll)]
  10 #![feature(rustc_diagnostic_macros)]
  11
  12 use crate::deriving::*;
  13
  14 use syntax::ast::Ident;
  15 use syntax::edition::Edition;
  16 use syntax::ext::base::{SyntaxExtension, SyntaxExtensionKind, MacroExpanderFn};
  17 use syntax::symbol::sym;
  18
  19 mod error_codes;
  20
  21 mod asm;
  22 mod assert;
  23 mod cfg;
  24 mod compile_error;
  25 mod concat;
  26 mod concat_idents;
  27 mod deriving;
  28 mod env;
  29 mod format;
  30 mod format_foreign;
  31 mod global_allocator;
  32 mod global_asm;
  33 mod log_syntax;
  34 mod source_util;
  35 mod test;
  36 mod trace_macros;
  37
  38 pub mod plugin_macro_defs;
  39 pub mod proc_macro_harness;
  40 pub mod standard_library_imports;
  41 pub mod test_harness;
  42
  43 pub fn register_builtin_macros(resolver: &mut dyn syntax::ext::base::Resolver, edition: Edition) {
  44     let mut register = |name, kind| resolver.register_builtin_macro(
  45         Ident::with_empty_ctxt(name), SyntaxExtension {
  46             is_builtin: true, ..SyntaxExtension::default(kind, edition)
  47         },
  48     );
  49     macro register_bang($($name:ident: $f:expr,)*) {
  50         $(register(sym::$name, SyntaxExtensionKind::LegacyBang(Box::new($f as MacroExpanderFn)));)*
  51     }
  52     macro register_attr($($name:ident: $f:expr,)*) {
  53         $(register(sym::$name, SyntaxExtensionKind::LegacyAttr(Box::new($f)));)*
  54     }
  55     macro register_derive($($name:ident: $f:expr,)*) {
  56         $(register(sym::$name, SyntaxExtensionKind::LegacyDerive(Box::new(BuiltinDerive($f))));)*
  57     }
  58
  59     register_bang! {
  60         __rust_unstable_column: source_util::expand_column,
  61         asm: asm::expand_asm,
  62         assert: assert::expand_assert,
  63         cfg: cfg::expand_cfg,
  64         column: source_util::expand_column,
  65         compile_error: compile_error::expand_compile_error,
  66         concat_idents: concat_idents::expand_syntax_ext,
  67         concat: concat::expand_syntax_ext,
  68         env: env::expand_env,
  69         file: source_util::expand_file,
  70         format_args_nl: format::expand_format_args_nl,
  71         format_args: format::expand_format_args,
  72         global_asm: global_asm::expand_global_asm,
  73         include_bytes: source_util::expand_include_bytes,
  74         include_str: source_util::expand_include_str,
  75         include: source_util::expand_include,
  76         line: source_util::expand_line,
  77         log_syntax: log_syntax::expand_syntax_ext,
  78         module_path: source_util::expand_mod,
  79         option_env: env::expand_option_env,
  80         stringify: source_util::expand_stringify,
  81         trace_macros: trace_macros::expand_trace_macros,
  82     }
  83
  84     register_attr! {
  85         bench: test::expand_bench,
  86         global_allocator: global_allocator::expand,
  87         test: test::expand_test,
  88         test_case: test::expand_test_case,
  89     }
  90
  91     register_derive! {
  92         Clone: clone::expand_deriving_clone,
  93         Copy: bounds::expand_deriving_copy,
  94         Debug: debug::expand_deriving_debug,
  95         Decodable: decodable::expand_deriving_decodable,
  96         Default: default::expand_deriving_default,
  97         Encodable: encodable::expand_deriving_encodable,
  98         Eq: eq::expand_deriving_eq,
  99         Hash: hash::expand_deriving_hash,
 100         Ord: ord::expand_deriving_ord,
 101         PartialEq: partial_eq::expand_deriving_partial_eq,
 102         PartialOrd: partial_ord::expand_deriving_partial_ord,
 103         RustcDecodable: decodable::expand_deriving_rustc_decodable,
 104         RustcEncodable: encodable::expand_deriving_rustc_encodable,
 105     }
 106 }