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rustc_feature: Convert BuiltinAttribute from tuple to a struct

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This commit is contained in:
Vadim Petrochenkov 2021-11-12 20:15:14 +08:00
parent e4c23daeb4
commit 6655727041
6 changed files with 62 additions and 44 deletions
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13
compiler/rustc_ast_passes/src/feature_gate.rs
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@ -3,7 +3,7 @@ use rustc_ast::visit::{self, AssocCtxt, FnCtxt, FnKind, Visitor};
use rustc_ast::{AssocTyConstraint, AssocTyConstraintKind, NodeId};
use rustc_ast::{PatKind, RangeEnd, VariantData};
use rustc_errors::struct_span_err;
use rustc_feature::{AttributeGate, BUILTIN_ATTRIBUTE_MAP};
use rustc_feature::{AttributeGate, BuiltinAttribute, BUILTIN_ATTRIBUTE_MAP};
use rustc_feature::{Features, GateIssue};
use rustc_session::parse::{feature_err, feature_err_issue};
use rustc_session::Session;
@ -301,11 +301,14 @@ impl<'a> PostExpansionVisitor<'a> {
impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
fn visit_attribute(&mut self, attr: &ast::Attribute) {
let attr_info =
attr.ident().and_then(|ident| BUILTIN_ATTRIBUTE_MAP.get(&ident.name)).map(|a| **a);
let attr_info = attr.ident().and_then(|ident| BUILTIN_ATTRIBUTE_MAP.get(&ident.name));
// Check feature gates for built-in attributes.
if let Some((.., AttributeGate::Gated(_, name, descr, has_feature))) = attr_info {
gate_feature_fn!(self, has_feature, attr.span, name, descr);
if let Some(BuiltinAttribute {
gate: AttributeGate::Gated(_, name, descr, has_feature),
..
}) = attr_info
{
gate_feature_fn!(self, has_feature, attr.span, *name, descr);
}
// Check unstable flavors of the `#[doc]` attribute.
if attr.has_name(sym::doc) {