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Partially support "overloaded deref" MIR lowering

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This commit is contained in:
hkalbasi 2023-03-04 23:38:04 +03:30
parent bf0f99f15d
commit af90ec8096
14 changed files with 546 additions and 297 deletions
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3
crates/hir/src/has_source.rs
View file

@ -11,7 +11,8 @@ use syntax::ast;
use crate::{
db::HirDatabase, Adt, Const, Enum, Field, FieldSource, Function, Impl, LifetimeParam,
LocalSource, Macro, Module, Static, Struct, Trait, TypeAlias, TraitAlias, TypeOrConstParam, Union, Variant,
LocalSource, Macro, Module, Static, Struct, Trait, TraitAlias, TypeAlias, TypeOrConstParam,
Union, Variant,
};
pub trait HasSource {

10
crates/hir/src/lib.rs
View file

@ -85,12 +85,12 @@ use crate::db::{DefDatabase, HirDatabase};
pub use crate::{
attrs::{HasAttrs, Namespace},
diagnostics::{
AnyDiagnostic, BreakOutsideOfLoop, InactiveCode, IncorrectCase, InvalidDeriveTarget,
MacroError, MalformedDerive, MismatchedArgCount, MissingFields, MissingMatchArms,
MissingUnsafe, NeedMut, NoSuchField, PrivateAssocItem, PrivateField,
AnyDiagnostic, BreakOutsideOfLoop, ExpectedFunction, InactiveCode, IncorrectCase,
InvalidDeriveTarget, MacroError, MalformedDerive, MismatchedArgCount, MissingFields,
MissingMatchArms, MissingUnsafe, NeedMut, NoSuchField, PrivateAssocItem, PrivateField,
ReplaceFilterMapNextWithFindMap, TypeMismatch, UnimplementedBuiltinMacro,
UnresolvedExternCrate, UnresolvedImport, UnresolvedMacroCall, UnresolvedModule,
UnresolvedProcMacro, UnusedMut,
UnresolvedExternCrate, UnresolvedField, UnresolvedImport, UnresolvedMacroCall,
UnresolvedMethodCall, UnresolvedModule, UnresolvedProcMacro, UnusedMut,
},
has_source::HasSource,
semantics::{PathResolution, Semantics, SemanticsScope, TypeInfo, VisibleTraits},

5
crates/hir/src/semantics.rs
View file

@ -1103,7 +1103,10 @@ impl<'db> SemanticsImpl<'db> {
let kind = match adjust.kind {
hir_ty::Adjust::NeverToAny => Adjust::NeverToAny,
hir_ty::Adjust::Deref(Some(hir_ty::OverloadedDeref(m))) => {
Adjust::Deref(Some(OverloadedDeref(mutability(m))))
// FIXME: Should we handle unknown mutability better?
Adjust::Deref(Some(OverloadedDeref(
m.map(mutability).unwrap_or(Mutability::Shared),
)))
}
hir_ty::Adjust::Deref(None) => Adjust::Deref(None),
hir_ty::Adjust::Borrow(hir_ty::AutoBorrow::RawPtr(m)) => {