bjoernager/rust
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Use ThinVec in ast::Path.

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This commit is contained in:
Nicholas Nethercote 2022-09-08 17:22:52 +10:00
parent 6b7ca2fcf2
commit 67d5cc0462
16 changed files with 168 additions and 156 deletions
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9
compiler/rustc_parse/src/parser/path.rs
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@ -11,8 +11,9 @@ use rustc_ast::{
use rustc_errors::{pluralize, Applicability, PResult};
use rustc_span::source_map::{BytePos, Span};
use rustc_span::symbol::{kw, sym, Ident};
use std::mem;
use thin_vec::ThinVec;
use tracing::debug;
/// Specifies how to parse a path.
#[derive(Copy, Clone, PartialEq)]
@ -63,7 +64,7 @@ impl<'a> Parser<'a> {
path_span = path_lo.to(self.prev_token.span);
} else {
path_span = self.token.span.to(self.token.span);
path = ast::Path { segments: Vec::new(), span: path_span, tokens: None };
path = ast::Path { segments: ThinVec::new(), span: path_span, tokens: None };
}
// See doc comment for `unmatched_angle_bracket_count`.
@ -179,7 +180,7 @@ impl<'a> Parser<'a> {
}
let lo = self.token.span;
let mut segments = Vec::new();
let mut segments = ThinVec::new();
let mod_sep_ctxt = self.token.span.ctxt();
if self.eat(&token::ModSep) {
segments.push(PathSegment::path_root(lo.shrink_to_lo().with_ctxt(mod_sep_ctxt)));
@ -191,7 +192,7 @@ impl<'a> Parser<'a> {
pub(super) fn parse_path_segments(
&mut self,
segments: &mut Vec<PathSegment>,
segments: &mut ThinVec<PathSegment>,
style: PathStyle,
ty_generics: Option<&Generics>,
) -> PResult<'a, ()> {