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-rw-r--r--compiler/rustc_builtin_macros/src/lib.rs119
1 files changed, 119 insertions, 0 deletions
diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs
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+//! This crate contains implementations of built-in macros and other code generating facilities
+//! injecting code into the crate before it is lowered to HIR.
+
+#![allow(rustc::potential_query_instability)]
+#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
+#![feature(array_windows)]
+#![feature(box_patterns)]
+#![feature(decl_macro)]
+#![feature(if_let_guard)]
+#![feature(is_sorted)]
+#![feature(let_chains)]
+#![feature(let_else)]
+#![feature(proc_macro_internals)]
+#![feature(proc_macro_quote)]
+#![recursion_limit = "256"]
+
+extern crate proc_macro;
+
+use crate::deriving::*;
+
+use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};
+use rustc_expand::proc_macro::BangProcMacro;
+use rustc_span::symbol::sym;
+
+mod assert;
+mod cfg;
+mod cfg_accessible;
+mod cfg_eval;
+mod compile_error;
+mod concat;
+mod concat_bytes;
+mod concat_idents;
+mod derive;
+mod deriving;
+mod edition_panic;
+mod env;
+mod format;
+mod format_foreign;
+mod global_allocator;
+mod log_syntax;
+mod source_util;
+mod test;
+mod trace_macros;
+mod util;
+
+pub mod asm;
+pub mod cmdline_attrs;
+pub mod proc_macro_harness;
+pub mod standard_library_imports;
+pub mod test_harness;
+
+pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) {
+ let mut register = |name, kind| resolver.register_builtin_macro(name, kind);
+ macro register_bang($($name:ident: $f:expr,)*) {
+ $(register(sym::$name, SyntaxExtensionKind::LegacyBang(Box::new($f as MacroExpanderFn)));)*
+ }
+ macro register_attr($($name:ident: $f:expr,)*) {
+ $(register(sym::$name, SyntaxExtensionKind::LegacyAttr(Box::new($f)));)*
+ }
+ macro register_derive($($name:ident: $f:expr,)*) {
+ $(register(sym::$name, SyntaxExtensionKind::LegacyDerive(Box::new(BuiltinDerive($f))));)*
+ }
+
+ register_bang! {
+ asm: asm::expand_asm,
+ assert: assert::expand_assert,
+ cfg: cfg::expand_cfg,
+ column: source_util::expand_column,
+ compile_error: compile_error::expand_compile_error,
+ concat_bytes: concat_bytes::expand_concat_bytes,
+ concat_idents: concat_idents::expand_concat_idents,
+ concat: concat::expand_concat,
+ env: env::expand_env,
+ file: source_util::expand_file,
+ format_args_nl: format::expand_format_args_nl,
+ format_args: format::expand_format_args,
+ const_format_args: format::expand_format_args,
+ global_asm: asm::expand_global_asm,
+ include_bytes: source_util::expand_include_bytes,
+ include_str: source_util::expand_include_str,
+ include: source_util::expand_include,
+ line: source_util::expand_line,
+ log_syntax: log_syntax::expand_log_syntax,
+ module_path: source_util::expand_mod,
+ option_env: env::expand_option_env,
+ core_panic: edition_panic::expand_panic,
+ std_panic: edition_panic::expand_panic,
+ unreachable: edition_panic::expand_unreachable,
+ stringify: source_util::expand_stringify,
+ trace_macros: trace_macros::expand_trace_macros,
+ }
+
+ register_attr! {
+ bench: test::expand_bench,
+ cfg_accessible: cfg_accessible::Expander,
+ cfg_eval: cfg_eval::expand,
+ derive: derive::Expander,
+ global_allocator: global_allocator::expand,
+ test: test::expand_test,
+ test_case: test::expand_test_case,
+ }
+
+ register_derive! {
+ Clone: clone::expand_deriving_clone,
+ Copy: bounds::expand_deriving_copy,
+ Debug: debug::expand_deriving_debug,
+ Default: default::expand_deriving_default,
+ Eq: eq::expand_deriving_eq,
+ Hash: hash::expand_deriving_hash,
+ Ord: ord::expand_deriving_ord,
+ PartialEq: partial_eq::expand_deriving_partial_eq,
+ PartialOrd: partial_ord::expand_deriving_partial_ord,
+ RustcDecodable: decodable::expand_deriving_rustc_decodable,
+ RustcEncodable: encodable::expand_deriving_rustc_encodable,
+ }
+
+ let client = proc_macro::bridge::client::Client::expand1(proc_macro::quote);
+ register(sym::quote, SyntaxExtensionKind::Bang(Box::new(BangProcMacro { client })));
+}