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Store some hir_def Paths in the type ref source maps

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Most paths are types and therefore already are in the source map, but the trait in impl trait and in bounds are not.

We do this by storing them basically as `TypeRef`s. For convenience, I created a wrapper around `TypeRefId` called `PathId` that always stores a path, and implemented indexing from the types map to it.

Fortunately, this change impacts memory usage negligibly (adds 2mb to `analysis-stats .`, but that could be just fluff). Probably because there aren't that many trait bounds and impl traits, and this also shrinks `TypeBound` by 8 bytes.

I also added an accessor to `TypesSourceMap` to get the source code, which will be needed for diagnostics.
This commit is contained in:
Chayim Refael Friedman 2024-11-19 19:57:07 +02:00
parent 26bc01dae3
commit 4e475a3245
18 changed files with 145 additions and 78 deletions
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6
crates/hir/src/lib.rs
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@ -43,7 +43,7 @@ use arrayvec::ArrayVec;
use base_db::{CrateDisplayName, CrateId, CrateOrigin};
use either::Either;
use hir_def::{
body::{BodyDiagnostic, SyntheticSyntax},
body::BodyDiagnostic,
data::adt::VariantData,
generics::{LifetimeParamData, TypeOrConstParamData, TypeParamProvenance},
hir::{BindingAnnotation, BindingId, ExprId, ExprOrPatId, LabelId, Pat},
@ -57,8 +57,8 @@ use hir_def::{
AssocItemId, AssocItemLoc, AttrDefId, CallableDefId, ConstId, ConstParamId, CrateRootModuleId,
DefWithBodyId, EnumId, EnumVariantId, ExternCrateId, FunctionId, GenericDefId, GenericParamId,
HasModule, ImplId, InTypeConstId, ItemContainerId, LifetimeParamId, LocalFieldId, Lookup,
MacroExpander, ModuleId, StaticId, StructId, TraitAliasId, TraitId, TupleId, TypeAliasId,
TypeOrConstParamId, TypeParamId, UnionId,
MacroExpander, ModuleId, StaticId, StructId, SyntheticSyntax, TraitAliasId, TraitId, TupleId,
TypeAliasId, TypeOrConstParamId, TypeParamId, UnionId,
};
use hir_expand::{
attrs::collect_attrs, proc_macro::ProcMacroKind, AstId, MacroCallKind, RenderedExpandError,