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Remove some allocations

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This commit is contained in:
Lukas Wirth 2021-12-10 20:01:24 +01:00
parent c81aa68afe
commit 1bbc255ec5
13 changed files with 78 additions and 58 deletions
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8
crates/hir_ty/src/lower.rs
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@ -28,7 +28,7 @@ use la_arena::ArenaMap;
use rustc_hash::FxHashSet;
use smallvec::SmallVec;
use stdx::impl_from;
use syntax::ast;
use syntax::{ast, SmolStr};
use crate::all_super_traits;
use crate::{
@ -797,7 +797,7 @@ impl<'a> TyLoweringContext<'a> {
let sized_trait = self
.resolver
.krate()
.and_then(|krate| self.db.lang_item(krate, "sized".into()))
.and_then(|krate| self.db.lang_item(krate, SmolStr::new_inline("sized")))
.and_then(|lang_item| lang_item.as_trait());
// Don't lower associated type bindings as the only possible relaxed trait bound
// `?Sized` has no of them.
@ -895,7 +895,7 @@ impl<'a> TyLoweringContext<'a> {
let krate = func.lookup(ctx.db.upcast()).module(ctx.db.upcast()).krate();
let sized_trait = ctx
.db
.lang_item(krate, "sized".into())
.lang_item(krate, SmolStr::new_inline("sized"))
.and_then(|lang_item| lang_item.as_trait().map(to_chalk_trait_id));
let sized_clause = sized_trait.map(|trait_id| {
let clause = WhereClause::Implemented(TraitRef {
@ -1200,7 +1200,7 @@ fn implicitly_sized_clauses<'a>(
let generic_args = &substitution.as_slice(&Interner)[is_trait_def as usize..];
let sized_trait = resolver
.krate()
.and_then(|krate| db.lang_item(krate, "sized".into()))
.and_then(|krate| db.lang_item(krate, SmolStr::new_inline("sized")))
.and_then(|lang_item| lang_item.as_trait().map(to_chalk_trait_id));
sized_trait.into_iter().flat_map(move |sized_trait| {