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⬆️ rust-analyzer

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This commit is contained in:
Laurențiu Nicola 2022-09-20 17:39:17 +03:00
parent 459bbb4222
commit f5fde4df43
76 changed files with 1613 additions and 654 deletions
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50
crates/hir/src/lib.rs
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@ -63,10 +63,9 @@ use hir_ty::{
primitive::UintTy,
subst_prefix,
traits::FnTrait,
AliasEq, AliasTy, BoundVar, CallableDefId, CallableSig, Canonical, CanonicalVarKinds, Cast,
ClosureId, DebruijnIndex, GenericArgData, InEnvironment, Interner, ParamKind,
QuantifiedWhereClause, Scalar, Solution, Substitution, TraitEnvironment, TraitRefExt, Ty,
TyBuilder, TyDefId, TyExt, TyKind, TyVariableKind, WhereClause,
AliasTy, CallableDefId, CallableSig, Canonical, CanonicalVarKinds, Cast, ClosureId,
GenericArgData, Interner, ParamKind, QuantifiedWhereClause, Scalar, Substitution,
TraitEnvironment, TraitRefExt, Ty, TyBuilder, TyDefId, TyExt, TyKind, WhereClause,
};
use itertools::Itertools;
use nameres::diagnostics::DefDiagnosticKind;
@ -582,8 +581,13 @@ impl Module {
/// Finds a path that can be used to refer to the given item from within
/// this module, if possible.
pub fn find_use_path(self, db: &dyn DefDatabase, item: impl Into<ItemInNs>) -> Option<ModPath> {
hir_def::find_path::find_path(db, item.into().into(), self.into())
pub fn find_use_path(
self,
db: &dyn DefDatabase,
item: impl Into<ItemInNs>,
prefer_no_std: bool,
) -> Option<ModPath> {
hir_def::find_path::find_path(db, item.into().into(), self.into(), prefer_no_std)
}
/// Finds a path that can be used to refer to the given item from within
@ -593,8 +597,15 @@ impl Module {
db: &dyn DefDatabase,
item: impl Into<ItemInNs>,
prefix_kind: PrefixKind,
prefer_no_std: bool,
) -> Option<ModPath> {
hir_def::find_path::find_path_prefixed(db, item.into().into(), self.into(), prefix_kind)
hir_def::find_path::find_path_prefixed(
db,
item.into().into(),
self.into(),
prefix_kind,
prefer_no_std,
)
}
}
@ -2880,27 +2891,12 @@ impl Type {
}
})
.build();
let goal = hir_ty::make_canonical(
InEnvironment::new(
&self.env.env,
AliasEq {
alias: AliasTy::Projection(projection),
ty: TyKind::BoundVar(BoundVar::new(DebruijnIndex::INNERMOST, 0))
.intern(Interner),
}
.cast(Interner),
),
[TyVariableKind::General].into_iter(),
);
match db.trait_solve(self.env.krate, goal)? {
Solution::Unique(s) => s
.value
.subst
.as_slice(Interner)
.first()
.map(|ty| self.derived(ty.assert_ty_ref(Interner).clone())),
Solution::Ambig(_) => None,
let ty = db.normalize_projection(projection, self.env.clone());
if ty.is_unknown() {
None
} else {
Some(self.derived(ty))
}
}