bjoernager/rust
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Use ThinVec in various AST types.

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This commit changes the sequence parsers to produce `ThinVec`, which
triggers numerous conversions.
This commit is contained in:
Nicholas Nethercote 2022-11-23 11:55:16 +11:00
parent 6a56c3a930
commit 4143b101f9
52 changed files with 355 additions and 292 deletions
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12
compiler/rustc_builtin_macros/src/proc_macro_harness.rs
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@ -11,6 +11,7 @@ use rustc_span::symbol::{kw, sym, Ident, Symbol};
use rustc_span::{Span, DUMMY_SP};
use smallvec::smallvec;
use std::mem;
use thin_vec::{thin_vec, ThinVec};
struct ProcMacroDerive {
id: NodeId,
@ -314,11 +315,14 @@ fn mk_decls(cx: &mut ExtCtxt<'_>, macros: &[ProcMacro]) -> P<ast::Item> {
cx.expr_call(
span,
proc_macro_ty_method_path(cx, custom_derive),
vec![
thin_vec![
cx.expr_str(span, cd.trait_name),
cx.expr_array_ref(
span,
cd.attrs.iter().map(|&s| cx.expr_str(span, s)).collect::<Vec<_>>(),
cd.attrs
.iter()
.map(|&s| cx.expr_str(span, s))
.collect::<ThinVec<_>>(),
),
local_path(cx, cd.function_name),
],
@ -335,7 +339,7 @@ fn mk_decls(cx: &mut ExtCtxt<'_>, macros: &[ProcMacro]) -> P<ast::Item> {
cx.expr_call(
span,
proc_macro_ty_method_path(cx, ident),
vec![
thin_vec![
cx.expr_str(span, ca.function_name.name),
local_path(cx, ca.function_name),
],
@ -377,7 +381,7 @@ fn mk_decls(cx: &mut ExtCtxt<'_>, macros: &[ProcMacro]) -> P<ast::Item> {
let anon_constant = cx.item_const(
span,
Ident::new(kw::Underscore, span),
cx.ty(span, ast::TyKind::Tup(Vec::new())),
cx.ty(span, ast::TyKind::Tup(ThinVec::new())),
block,
);