e539dd65f8
By moving `{known,used}_attrs` from `SessionGlobals` to `Session`. This
means they are accessed via the `Session`, rather than via TLS. A few
`Attr` methods and `librustc_ast` functions are now methods of
`Session`.
All of this required passing a `Session` to lots of functions that didn't
already have one. Some of these functions also had arguments removed, because
those arguments could be accessed directly via the `Session` argument.
`contains_feature_attr()` was dead, and is removed.
Some functions were moved from `librustc_ast` elsewhere because they now need
to access `Session`, which isn't available in that crate.
- `entry_point_type()` --> `librustc_builtin_macros`
- `global_allocator_spans()` --> `librustc_metadata`
- `is_proc_macro_attr()` --> `Session`
69 lines
1.7 KiB
Rust
69 lines
1.7 KiB
Rust
//! The Rust parser and macro expander.
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//!
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//! # Note
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//!
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//! This API is completely unstable and subject to change.
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#![doc(html_root_url = "https://doc.rust-lang.org/nightly/", test(attr(deny(warnings))))]
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#![feature(bool_to_option)]
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#![feature(box_syntax)]
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#![feature(const_fn)] // For the `transmute` in `P::new`
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#![feature(const_panic)]
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#![feature(const_fn_transmute)]
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#![feature(crate_visibility_modifier)]
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#![feature(label_break_value)]
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#![feature(nll)]
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#![feature(or_patterns)]
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#![feature(try_trait)]
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#![feature(unicode_internals)]
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#![recursion_limit = "256"]
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// FIXME(#56935): Work around ICEs during cross-compilation.
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#[allow(unused)]
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extern crate rustc_macros;
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#[macro_export]
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macro_rules! unwrap_or {
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($opt:expr, $default:expr) => {
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match $opt {
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Some(x) => x,
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None => $default,
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}
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};
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}
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pub mod util {
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pub mod classify;
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pub mod comments;
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pub mod lev_distance;
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pub mod literal;
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pub mod parser;
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}
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pub mod ast;
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pub mod attr;
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pub mod crate_disambiguator;
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pub mod entry;
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pub mod expand;
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pub mod mut_visit;
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pub mod node_id;
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pub mod ptr;
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pub mod token;
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pub mod tokenstream;
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pub mod visit;
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use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
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/// Requirements for a `StableHashingContext` to be used in this crate.
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/// This is a hack to allow using the `HashStable_Generic` derive macro
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/// instead of implementing everything in librustc_middle.
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pub trait HashStableContext: rustc_span::HashStableContext {
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fn hash_attr(&mut self, _: &ast::Attribute, hasher: &mut StableHasher);
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}
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impl<AstCtx: crate::HashStableContext> HashStable<AstCtx> for ast::Attribute {
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fn hash_stable(&self, hcx: &mut AstCtx, hasher: &mut StableHasher) {
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hcx.hash_attr(self, hasher)
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}
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}
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