bjoernager/rust
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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5
compiler/rustc_expand/src/build.rs
View file

@ -1,13 +1,12 @@
use crate::base::ExtCtxt;
use rustc_ast::attr;
use rustc_ast::ptr::P;
use rustc_ast::{self as ast, AttrVec, BlockCheckMode, Expr, LocalKind, PatKind, UnOp};
use rustc_data_structures::sync::Lrc;
use rustc_span::source_map::Spanned;
use rustc_span::symbol::{kw, sym, Ident, Symbol};
use rustc_span::Span;
use thin_vec::ThinVec;
impl<'a> ExtCtxt<'a> {
pub fn path(&self, span: Span, strs: Vec<Ident>) -> ast::Path {
@ -28,7 +27,7 @@ impl<'a> ExtCtxt<'a> {
) -> ast::Path {
assert!(!idents.is_empty());
let add_root = global && !idents[0].is_path_segment_keyword();
let mut segments = Vec::with_capacity(idents.len() + add_root as usize);
let mut segments = ThinVec::with_capacity(idents.len() + add_root as usize);
if add_root {
segments.push(ast::PathSegment::path_root(span));
}

8
compiler/rustc_expand/src/placeholders.rs
View file

@ -1,14 +1,12 @@
use crate::expand::{AstFragment, AstFragmentKind};
use rustc_ast as ast;
use rustc_ast::mut_visit::*;
use rustc_ast::ptr::P;
use rustc_data_structures::fx::FxHashMap;
use rustc_span::source_map::DUMMY_SP;
use rustc_span::symbol::Ident;
use smallvec::{smallvec, SmallVec};
use rustc_data_structures::fx::FxHashMap;
use thin_vec::ThinVec;
pub fn placeholder(
kind: AstFragmentKind,
@ -17,7 +15,7 @@ pub fn placeholder(
) -> AstFragment {
fn mac_placeholder() -> P<ast::MacCall> {
P(ast::MacCall {
path: ast::Path { span: DUMMY_SP, segments: Vec::new(), tokens: None },
path: ast::Path { span: DUMMY_SP, segments: ThinVec::new(), tokens: None },
args: P(ast::MacArgs::Empty),
prior_type_ascription: None,
})