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Merge #8364

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8364: Memory usage improvements r=jonas-schievink a=alexmaco

These are mostly focused on splitting up enum variants with large size differences between variants by `Box`-ing things up.

In my testing this reduces the memory usage somewhere in the low percentages, even though the measurements are quite noisy.

Co-authored-by: Alexandru Macovei <alexnmaco@gmail.com>
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bors[bot] 2021-04-06 13:43:37 +00:00 • committed by GitHub
commit 7d39b13996
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8 changed files with 54 additions and 33 deletions
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10
crates/hir_ty/src/infer/expr.rs
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@ -318,7 +318,13 @@ impl<'a> InferenceContext<'a> {
self.normalize_associated_types_in(ret_ty)
}
Expr::MethodCall { receiver, args, method_name, generic_args } => self
.infer_method_call(tgt_expr, *receiver, &args, &method_name, generic_args.as_ref()),
.infer_method_call(
tgt_expr,
*receiver,
&args,
&method_name,
generic_args.as_deref(),
),
Expr::Match { expr, arms } => {
let input_ty = self.infer_expr(*expr, &Expectation::none());
@ -399,7 +405,7 @@ impl<'a> InferenceContext<'a> {
TyKind::Never.intern(&Interner)
}
Expr::RecordLit { path, fields, spread } => {
let (ty, def_id) = self.resolve_variant(path.as_ref());
let (ty, def_id) = self.resolve_variant(path.as_deref());
if let Some(variant) = def_id {
self.write_variant_resolution(tgt_expr.into(), variant);
}