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Implement Chalk variable kinds

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This means we need to keep track of the kinds (general/int/float) of variables
in `Canonical`, which requires some more ceremony. (It also exposes some places
where we're not really dealing with canonicalization correctly -- another thing
to be cleaned up when we switch to using Chalk's types directly.)

Should fix the last remaining issue of #2534.
This commit is contained in:
Florian Diebold 2020-06-28 21:17:27 +02:00 • committed by Florian Diebold
parent 4a19d5954a
commit d5d485ef92
8 changed files with 140 additions and 71 deletions
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10
crates/ra_hir/src/code_model.rs
View file

@ -1187,7 +1187,7 @@ impl Type {
None => return false,
};
let canonical_ty = Canonical { value: self.ty.value.clone(), num_vars: 0 };
let canonical_ty = Canonical { value: self.ty.value.clone(), kinds: Arc::new([]) };
method_resolution::implements_trait(
&canonical_ty,
db,
@ -1211,7 +1211,7 @@ impl Type {
self.ty.environment.clone(),
hir_ty::Obligation::Trait(trait_ref),
),
num_vars: 0,
kinds: Arc::new([]),
};
db.trait_solve(self.krate, goal).is_some()
@ -1286,7 +1286,7 @@ impl Type {
pub fn autoderef<'a>(&'a self, db: &'a dyn HirDatabase) -> impl Iterator<Item = Type> + 'a {
// There should be no inference vars in types passed here
// FIXME check that?
let canonical = Canonical { value: self.ty.value.clone(), num_vars: 0 };
let canonical = Canonical { value: self.ty.value.clone(), kinds: Arc::new([]) };
let environment = self.ty.environment.clone();
let ty = InEnvironment { value: canonical, environment };
autoderef(db, Some(self.krate), ty)
@ -1327,7 +1327,7 @@ impl Type {
// There should be no inference vars in types passed here
// FIXME check that?
// FIXME replace Unknown by bound vars here
let canonical = Canonical { value: self.ty.value.clone(), num_vars: 0 };
let canonical = Canonical { value: self.ty.value.clone(), kinds: Arc::new([]) };
let env = self.ty.environment.clone();
let krate = krate.id;
@ -1358,7 +1358,7 @@ impl Type {
// There should be no inference vars in types passed here
// FIXME check that?
// FIXME replace Unknown by bound vars here
let canonical = Canonical { value: self.ty.value.clone(), num_vars: 0 };
let canonical = Canonical { value: self.ty.value.clone(), kinds: Arc::new([]) };
let env = self.ty.environment.clone();
let krate = krate.id;