bjoernager/rust
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stabilize min_const_generics

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This commit is contained in:
Bastian Kauschke 2020-11-17 10:55:13 +01:00
parent 1f5beec3b1
commit 06cc9c26da
17 changed files with 41 additions and 51 deletions
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10
compiler/rustc_ast_passes/src/ast_validation.rs
View file

@ -773,14 +773,12 @@ fn validate_generic_param_order<'a>(
err.span_suggestion(
span,
&format!(
"reorder the parameters: lifetimes{}",
"reorder the parameters: lifetimes, {}",
if sess.features_untracked().const_generics {
", then consts and types"
} else if sess.features_untracked().min_const_generics {
", then types, then consts"
"then consts and types"
} else {
", then types"
},
"then types, then consts"
}
),
ordered_params.clone(),
Applicability::MachineApplicable,

15
compiler/rustc_ast_passes/src/feature_gate.rs
View file

@ -1,7 +1,7 @@
use rustc_ast as ast;
use rustc_ast::visit::{self, AssocCtxt, FnCtxt, FnKind, Visitor};
use rustc_ast::{AssocTyConstraint, AssocTyConstraintKind, NodeId};
use rustc_ast::{GenericParam, GenericParamKind, PatKind, RangeEnd, VariantData};
use rustc_ast::{PatKind, RangeEnd, VariantData};
use rustc_errors::struct_span_err;
use rustc_feature::{AttributeGate, BUILTIN_ATTRIBUTE_MAP};
use rustc_feature::{Features, GateIssue};
@ -529,19 +529,6 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
visit::walk_fn(self, fn_kind, span)
}
fn visit_generic_param(&mut self, param: &'a GenericParam) {
if let GenericParamKind::Const { .. } = param.kind {
gate_feature_fn!(
&self,
|x: &Features| x.const_generics || x.min_const_generics,
param.ident.span,
sym::min_const_generics,
"const generics are unstable"
);
}
visit::walk_generic_param(self, param)
}
fn visit_assoc_ty_constraint(&mut self, constraint: &'a AssocTyConstraint) {
if let AssocTyConstraintKind::Bound { .. } = constraint.kind {
gate_feature_post!(