bjoernager/rust
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Add a helper method for extracting spans from AttrArgsEq

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This commit is contained in:
Oli Scherer 2024-12-02 10:29:45 +00:00
parent 778321d155
commit c0b532277b
3 changed files with 14 additions and 9 deletions
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14
compiler/rustc_ast/src/ast.rs
View file

@ -1750,15 +1750,21 @@ pub enum AttrArgsEq {
Hir(MetaItemLit),
}
impl AttrArgsEq {
pub fn span(&self) -> Span {
match self {
AttrArgsEq::Ast(p) => p.span,
AttrArgsEq::Hir(lit) => lit.span,
}
}
}
impl AttrArgs {
pub fn span(&self) -> Option<Span> {
match self {
AttrArgs::Empty => None,
AttrArgs::Delimited(args) => Some(args.dspan.entire()),
AttrArgs::Eq { eq_span, value: AttrArgsEq::Ast(expr) } => Some(eq_span.to(expr.span)),
AttrArgs::Eq { value: AttrArgsEq::Hir(lit), .. } => {
unreachable!("in literal form when getting span: {:?}", lit);
}
AttrArgs::Eq { eq_span, value } => Some(eq_span.to(value.span())),
}
}

4
compiler/rustc_resolve/src/rustdoc.rs
View file

@ -220,9 +220,9 @@ pub fn attrs_to_doc_fragments<'a>(
fn span_for_value(attr: &ast::Attribute) -> Span {
if let ast::AttrKind::Normal(normal) = &attr.kind
&& let ast::AttrArgs::Eq { value: ast::AttrArgsEq::Hir(meta), .. } = &normal.item.args
&& let ast::AttrArgs::Eq { value, .. } = &normal.item.args
{
meta.span.with_ctxt(attr.span.ctxt())
value.span().with_ctxt(attr.span.ctxt())
} else {
attr.span
}

5
compiler/rustc_trait_selection/src/error_reporting/traits/on_unimplemented.rs
View file

@ -1,7 +1,7 @@
use std::iter;
use std::path::PathBuf;
use rustc_ast::{AttrArgs, AttrArgsEq, AttrKind, Attribute, MetaItemInner};
use rustc_ast::{AttrArgs, AttrKind, Attribute, MetaItemInner};
use rustc_data_structures::fx::FxHashMap;
use rustc_errors::codes::*;
use rustc_errors::{ErrorGuaranteed, struct_span_code_err};
@ -639,8 +639,7 @@ impl<'tcx> OnUnimplementedDirective {
let report_span = match &item.args {
AttrArgs::Empty => item.path.span,
AttrArgs::Delimited(args) => args.dspan.entire(),
AttrArgs::Eq { eq_span, value: AttrArgsEq::Ast(expr) } => eq_span.to(expr.span),
AttrArgs::Eq { eq_span, value: AttrArgsEq::Hir(expr) } => eq_span.to(expr.span),
AttrArgs::Eq { eq_span, value } => eq_span.to(value.span()),
};
if let Some(item_def_id) = item_def_id.as_local() {