bjoernager/rust
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Rename HIR TypeBinding to AssocItemConstraint and related cleanup

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This commit is contained in:
León Orell Valerian Liehr 2024-05-27 23:53:46 +02:00
parent 0a59f11362
commit 34c56c45cf
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GPG key ID: D17A07215F68E713
108 changed files with 878 additions and 818 deletions
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16
compiler/rustc_ast_passes/src/ast_validation.rs
View file

@ -673,7 +673,7 @@ impl<'a> AstValidator<'a> {
let constraint_sugg = data.args.iter().filter_map(|a| match a {
AngleBracketedArg::Arg(_) => None,
AngleBracketedArg::Constraint(c) => {
Some(pprust::to_string(|s| s.print_assoc_constraint(c)))
Some(pprust::to_string(|s| s.print_assoc_item_constraint(c)))
}
});
format!(
@ -1201,11 +1201,11 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
for arg in &data.args {
match arg {
AngleBracketedArg::Arg(arg) => self.visit_generic_arg(arg),
// Type bindings such as `Item = impl Debug` in `Iterator<Item = Debug>`
// are allowed to contain nested `impl Trait`.
// Associated type bindings such as `Item = impl Debug` in
// `Iterator<Item = Debug>` are allowed to contain nested `impl Trait`.
AngleBracketedArg::Constraint(constraint) => {
self.with_impl_trait(None, |this| {
this.visit_assoc_constraint(constraint);
this.visit_assoc_item_constraint(constraint);
});
}
}
@ -1365,7 +1365,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
}
}
}
// The lowered form of parenthesized generic args contains a type binding.
// The lowered form of parenthesized generic args contains an associated type binding.
Some(ast::GenericArgs::Parenthesized(args)) => {
self.dcx().emit_err(errors::NegativeBoundWithParentheticalNotation {
span: args.span,
@ -1591,11 +1591,13 @@ fn deny_equality_constraints(
let len = assoc_path.segments.len() - 1;
let gen_args = args.as_deref().cloned();
// Build `<Bar = RhsTy>`.
let arg = AngleBracketedArg::Constraint(AssocConstraint {
let arg = AngleBracketedArg::Constraint(AssocItemConstraint {
id: rustc_ast::node_id::DUMMY_NODE_ID,
ident: *ident,
gen_args,
kind: AssocConstraintKind::Equality { term: predicate.rhs_ty.clone().into() },
kind: AssocItemConstraintKind::Equality {
term: predicate.rhs_ty.clone().into(),
},
span: ident.span,
});
// Add `<Bar = RhsTy>` to `Foo`.

32
compiler/rustc_ast_passes/src/feature_gate.rs
View file

@ -1,6 +1,6 @@
use rustc_ast as ast;
use rustc_ast::visit::{self, AssocCtxt, FnCtxt, FnKind, Visitor};
use rustc_ast::{attr, AssocConstraint, AssocConstraintKind, NodeId};
use rustc_ast::{attr, AssocItemConstraint, AssocItemConstraintKind, NodeId};
use rustc_ast::{token, PatKind};
use rustc_feature::{AttributeGate, BuiltinAttribute, Features, GateIssue, BUILTIN_ATTRIBUTE_MAP};
use rustc_session::parse::{feature_err, feature_err_issue, feature_warn};
@ -344,7 +344,7 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
for predicate in &g.where_clause.predicates {
match predicate {
ast::WherePredicate::BoundPredicate(bound_pred) => {
// A type binding, eg `for<'c> Foo: Send+Clone+'c`
// A type bound (e.g., `for<'c> Foo: Send + Clone + 'c`).
self.check_late_bound_lifetime_defs(&bound_pred.bound_generic_params);
}
_ => {}
@ -445,21 +445,21 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
visit::walk_fn(self, fn_kind)
}
fn visit_assoc_constraint(&mut self, constraint: &'a AssocConstraint) {
if let AssocConstraintKind::Bound { .. } = constraint.kind {
if let Some(ast::GenericArgs::Parenthesized(args)) = constraint.gen_args.as_ref()
&& args.inputs.is_empty()
&& matches!(args.output, ast::FnRetTy::Default(..))
{
gate!(
&self,
return_type_notation,
constraint.span,
"return type notation is experimental"
);
}
fn visit_assoc_item_constraint(&mut self, constraint: &'a AssocItemConstraint) {
if let AssocItemConstraintKind::Bound { .. } = constraint.kind
&& let Some(ast::GenericArgs::Parenthesized(args)) = constraint.gen_args.as_ref()
&& args.inputs.is_empty()
&& let ast::FnRetTy::Default(..) = args.output
{
gate!(
&self,
return_type_notation,
constraint.span,
"return type notation is experimental"
);
}
visit::walk_assoc_constraint(self, constraint)
visit::walk_assoc_item_constraint(self, constraint)
}
fn visit_assoc_item(&mut self, i: &'a ast::AssocItem, ctxt: AssocCtxt) {

4
compiler/rustc_ast_passes/src/node_count.rs
View file

@ -119,9 +119,9 @@ impl<'ast> Visitor<'ast> for NodeCounter {
self.count += 1;
walk_generic_args(self, generic_args)
}
fn visit_assoc_constraint(&mut self, constraint: &AssocConstraint) {
fn visit_assoc_item_constraint(&mut self, constraint: &AssocItemConstraint) {
self.count += 1;
walk_assoc_constraint(self, constraint)
walk_assoc_item_constraint(self, constraint)
}
fn visit_attribute(&mut self, _attr: &Attribute) {
self.count += 1;