mirror of
https://github.com/rust-lang/rust.git
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298c56f4ba
This commit does the following. - Changes it from `Lrc<Box<dyn ToAttrTokenStream>>` to `Lrc<LazyAttrTokenStreamInner>`. - Reworks `LazyAttrTokenStreamImpl` as `LazyAttrTokenStreamInner`, which is a two-variant enum. - Removes the `ToAttrTokenStream` trait and the two impls of it. The recursion limit must be increased in some crates otherwise rustdoc aborts.
150 lines
5.1 KiB
Rust
150 lines
5.1 KiB
Rust
//! This crate contains implementations of built-in macros and other code generating facilities
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//! injecting code into the crate before it is lowered to HIR.
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// tidy-alphabetical-start
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#![allow(internal_features)]
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#![allow(rustc::diagnostic_outside_of_impl)]
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#![allow(rustc::untranslatable_diagnostic)]
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#![cfg_attr(bootstrap, feature(let_chains))]
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#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
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#![doc(rust_logo)]
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#![feature(assert_matches)]
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#![feature(autodiff)]
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#![feature(box_patterns)]
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#![feature(decl_macro)]
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#![feature(if_let_guard)]
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#![feature(proc_macro_internals)]
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#![feature(proc_macro_quote)]
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#![feature(rustdoc_internals)]
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#![feature(string_from_utf8_lossy_owned)]
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#![feature(try_blocks)]
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#![recursion_limit = "256"]
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// tidy-alphabetical-end
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extern crate proc_macro;
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use std::sync::Arc;
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use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};
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use rustc_expand::proc_macro::BangProcMacro;
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use rustc_span::sym;
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use crate::deriving::*;
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mod alloc_error_handler;
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mod assert;
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mod autodiff;
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mod cfg;
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mod cfg_accessible;
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mod cfg_eval;
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mod compile_error;
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mod concat;
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mod concat_bytes;
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mod concat_idents;
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mod define_opaque;
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mod derive;
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mod deriving;
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mod edition_panic;
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mod env;
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mod errors;
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mod format;
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mod format_foreign;
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mod global_allocator;
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mod log_syntax;
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mod pattern_type;
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mod source_util;
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mod test;
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mod trace_macros;
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pub mod asm;
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pub mod cmdline_attrs;
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pub mod contracts;
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pub mod proc_macro_harness;
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pub mod standard_library_imports;
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pub mod test_harness;
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pub mod util;
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rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
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pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) {
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let mut register = |name, kind| resolver.register_builtin_macro(name, kind);
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macro register_bang($($name:ident: $f:expr,)*) {
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$(register(sym::$name, SyntaxExtensionKind::LegacyBang(Arc::new($f as MacroExpanderFn)));)*
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}
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macro register_attr($($name:ident: $f:expr,)*) {
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$(register(sym::$name, SyntaxExtensionKind::LegacyAttr(Arc::new($f)));)*
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}
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macro register_derive($($name:ident: $f:expr,)*) {
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$(register(sym::$name, SyntaxExtensionKind::LegacyDerive(Arc::new(BuiltinDerive($f))));)*
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}
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register_bang! {
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// tidy-alphabetical-start
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asm: asm::expand_asm,
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assert: assert::expand_assert,
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cfg: cfg::expand_cfg,
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column: source_util::expand_column,
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compile_error: compile_error::expand_compile_error,
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concat: concat::expand_concat,
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concat_bytes: concat_bytes::expand_concat_bytes,
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concat_idents: concat_idents::expand_concat_idents,
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const_format_args: format::expand_format_args,
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core_panic: edition_panic::expand_panic,
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env: env::expand_env,
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file: source_util::expand_file,
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format_args: format::expand_format_args,
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format_args_nl: format::expand_format_args_nl,
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global_asm: asm::expand_global_asm,
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include: source_util::expand_include,
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include_bytes: source_util::expand_include_bytes,
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include_str: source_util::expand_include_str,
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line: source_util::expand_line,
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log_syntax: log_syntax::expand_log_syntax,
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module_path: source_util::expand_mod,
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naked_asm: asm::expand_naked_asm,
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option_env: env::expand_option_env,
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pattern_type: pattern_type::expand,
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std_panic: edition_panic::expand_panic,
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stringify: source_util::expand_stringify,
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trace_macros: trace_macros::expand_trace_macros,
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unreachable: edition_panic::expand_unreachable,
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// tidy-alphabetical-end
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}
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register_attr! {
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alloc_error_handler: alloc_error_handler::expand,
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autodiff: autodiff::expand,
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bench: test::expand_bench,
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cfg_accessible: cfg_accessible::Expander,
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cfg_eval: cfg_eval::expand,
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define_opaque: define_opaque::expand,
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derive: derive::Expander { is_const: false },
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derive_const: derive::Expander { is_const: true },
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global_allocator: global_allocator::expand,
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test: test::expand_test,
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test_case: test::expand_test_case,
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}
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register_derive! {
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Clone: clone::expand_deriving_clone,
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Copy: bounds::expand_deriving_copy,
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ConstParamTy: bounds::expand_deriving_const_param_ty,
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UnsizedConstParamTy: bounds::expand_deriving_unsized_const_param_ty,
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Debug: debug::expand_deriving_debug,
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Default: default::expand_deriving_default,
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Eq: eq::expand_deriving_eq,
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Hash: hash::expand_deriving_hash,
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Ord: ord::expand_deriving_ord,
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PartialEq: partial_eq::expand_deriving_partial_eq,
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PartialOrd: partial_ord::expand_deriving_partial_ord,
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CoercePointee: coerce_pointee::expand_deriving_coerce_pointee,
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}
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let client = proc_macro::bridge::client::Client::expand1(proc_macro::quote);
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register(sym::quote, SyntaxExtensionKind::Bang(Arc::new(BangProcMacro { client })));
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let requires = SyntaxExtensionKind::Attr(Arc::new(contracts::ExpandRequires));
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register(sym::contracts_requires, requires);
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let ensures = SyntaxExtensionKind::Attr(Arc::new(contracts::ExpandEnsures));
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register(sym::contracts_ensures, ensures);
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}
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