120 lines
2.6 KiB
Rust
120 lines
2.6 KiB
Rust
//! The Rust parser and macro expander.
|
|
//!
|
|
//! # Note
|
|
//!
|
|
//! This API is completely unstable and subject to change.
|
|
|
|
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/",
|
|
test(attr(deny(warnings))))]
|
|
|
|
#![feature(box_syntax)]
|
|
#![feature(const_fn)]
|
|
#![feature(const_transmute)]
|
|
#![feature(crate_visibility_modifier)]
|
|
#![feature(label_break_value)]
|
|
#![feature(nll)]
|
|
#![feature(try_trait)]
|
|
#![feature(slice_patterns)]
|
|
#![feature(unicode_internals)]
|
|
|
|
#![recursion_limit="256"]
|
|
|
|
pub use errors;
|
|
use rustc_data_structures::sync::Lock;
|
|
use rustc_index::bit_set::GrowableBitSet;
|
|
pub use rustc_data_structures::thin_vec::ThinVec;
|
|
use ast::AttrId;
|
|
use syntax_pos::edition::Edition;
|
|
|
|
#[cfg(test)]
|
|
mod tests;
|
|
|
|
pub const MACRO_ARGUMENTS: Option<&'static str> = Some("macro arguments");
|
|
|
|
#[macro_export]
|
|
macro_rules! unwrap_or {
|
|
($opt:expr, $default:expr) => {
|
|
match $opt {
|
|
Some(x) => x,
|
|
None => $default,
|
|
}
|
|
}
|
|
}
|
|
|
|
pub struct Globals {
|
|
used_attrs: Lock<GrowableBitSet<AttrId>>,
|
|
known_attrs: Lock<GrowableBitSet<AttrId>>,
|
|
syntax_pos_globals: syntax_pos::Globals,
|
|
}
|
|
|
|
impl Globals {
|
|
fn new(edition: Edition) -> Globals {
|
|
Globals {
|
|
// We have no idea how many attributes there will be, so just
|
|
// initiate the vectors with 0 bits. We'll grow them as necessary.
|
|
used_attrs: Lock::new(GrowableBitSet::new_empty()),
|
|
known_attrs: Lock::new(GrowableBitSet::new_empty()),
|
|
syntax_pos_globals: syntax_pos::Globals::new(edition),
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn with_globals<F, R>(edition: Edition, f: F) -> R
|
|
where F: FnOnce() -> R
|
|
{
|
|
let globals = Globals::new(edition);
|
|
GLOBALS.set(&globals, || {
|
|
syntax_pos::GLOBALS.set(&globals.syntax_pos_globals, f)
|
|
})
|
|
}
|
|
|
|
pub fn with_default_globals<F, R>(f: F) -> R
|
|
where F: FnOnce() -> R
|
|
{
|
|
with_globals(edition::DEFAULT_EDITION, f)
|
|
}
|
|
|
|
scoped_tls::scoped_thread_local!(pub static GLOBALS: Globals);
|
|
|
|
#[macro_use]
|
|
pub mod diagnostics {
|
|
#[macro_use]
|
|
pub mod macros;
|
|
}
|
|
|
|
pub mod error_codes;
|
|
|
|
pub mod util {
|
|
pub mod lev_distance;
|
|
pub mod node_count;
|
|
pub mod parser;
|
|
pub mod map_in_place;
|
|
}
|
|
|
|
pub mod json;
|
|
|
|
pub mod ast;
|
|
pub mod attr;
|
|
pub mod expand;
|
|
pub mod source_map;
|
|
#[macro_use] pub mod config;
|
|
pub mod entry;
|
|
pub mod feature_gate;
|
|
pub mod mut_visit;
|
|
pub mod parse;
|
|
pub mod ptr;
|
|
pub mod show_span;
|
|
pub use syntax_pos::edition;
|
|
pub use syntax_pos::symbol;
|
|
pub mod sess;
|
|
pub mod tokenstream;
|
|
pub mod visit;
|
|
|
|
pub mod print {
|
|
pub mod pp;
|
|
pub mod pprust;
|
|
mod helpers;
|
|
}
|
|
|
|
pub mod early_buffered_lints;
|