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Shrink TypeRef from 16 from 32 bytes

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Only references and arrays need to be boxed, and they comprise only 9.4% of the types (according to counting on r-a's code).

This saves 17mb.
This commit is contained in:
Chayim Refael Friedman 2024-10-20 01:56:51 +03:00
parent 061e5d7f71
commit bf7edd3783
10 changed files with 178 additions and 149 deletions
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8
crates/hir-def/src/path/lower.rs
View file

@ -9,6 +9,7 @@ use hir_expand::{
name::{AsName, Name},
};
use intern::{sym, Interned};
use stdx::thin_vec::EmptyOptimizedThinVec;
use syntax::ast::{self, AstNode, HasGenericArgs, HasTypeBounds};
use crate::{
@ -267,8 +268,9 @@ fn lower_generic_args_from_fn_path(
let type_ref = TypeRef::from_ast_opt(ctx, param.ty());
param_types.push(type_ref);
}
let args =
Box::new([GenericArg::Type(ctx.alloc_type_ref_desugared(TypeRef::Tuple(param_types)))]);
let args = Box::new([GenericArg::Type(
ctx.alloc_type_ref_desugared(TypeRef::Tuple(EmptyOptimizedThinVec::from_iter(param_types))),
)]);
let bindings = if let Some(ret_type) = ret_type {
let type_ref = TypeRef::from_ast_opt(ctx, ret_type.ty());
Box::new([AssociatedTypeBinding {
@ -279,7 +281,7 @@ fn lower_generic_args_from_fn_path(
}])
} else {
// -> ()
let type_ref = ctx.alloc_type_ref_desugared(TypeRef::Tuple(Vec::new()));
let type_ref = ctx.alloc_type_ref_desugared(TypeRef::unit());
Box::new([AssociatedTypeBinding {
name: Name::new_symbol_root(sym::Output.clone()),
args: None,