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Remove has_errors check in builtin macro parsing

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This commit is contained in:
Oli Scherer 2024-01-25 17:12:09 +00:00
parent 2b60e56e1f
commit 3042da0248
1 changed files with 8 additions and 4 deletions
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12
compiler/rustc_builtin_macros/src/format.rs
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@ -139,7 +139,7 @@ fn parse_args<'a>(ecx: &mut ExtCtxt<'a>, sp: Span, tts: TokenStream) -> PResult<
_ => {
let expr = p.parse_expr()?;
if !args.named_args().is_empty() {
ecx.dcx().emit_err(errors::PositionalAfterNamed {
return Err(ecx.dcx().create_err(errors::PositionalAfterNamed {
span: expr.span,
args: args
.named_args()
@ -147,7 +147,7 @@ fn parse_args<'a>(ecx: &mut ExtCtxt<'a>, sp: Span, tts: TokenStream) -> PResult<
.filter_map(|a| a.kind.ident().map(|ident| (a, ident)))
.map(|(arg, n)| n.span.to(arg.expr.span))
.collect(),
});
}));
}
args.add(FormatArgument { kind: FormatArgumentKind::Normal, expr });
}
@ -313,6 +313,8 @@ fn make_format_args(
}
use ArgRef::*;
let mut unnamed_arg_after_named_arg = false;
let mut lookup_arg = |arg: ArgRef<'_>,
span: Option<Span>,
used_as: PositionUsedAs,
@ -352,6 +354,7 @@ fn make_format_args(
// For the moment capturing variables from format strings expanded from macros is
// disabled (see RFC #2795)
ecx.dcx().emit_err(errors::FormatNoArgNamed { span, name });
unnamed_arg_after_named_arg = true;
DummyResult::raw_expr(span, true)
};
Ok(args.add(FormatArgument { kind: FormatArgumentKind::Captured(ident), expr }))
@ -510,7 +513,8 @@ fn make_format_args(
})
.collect::<Vec<_>>();
if !unused.is_empty() {
let has_unused = !unused.is_empty();
if has_unused {
// If there's a lot of unused arguments,
// let's check if this format arguments looks like another syntax (printf / shell).
let detect_foreign_fmt = unused.len() > args.explicit_args().len() / 2;
@ -529,7 +533,7 @@ fn make_format_args(
// Only check for unused named argument names if there are no other errors to avoid causing
// too much noise in output errors, such as when a named argument is entirely unused.
if invalid_refs.is_empty() && ecx.dcx().has_errors().is_none() {
if invalid_refs.is_empty() && !has_unused && !unnamed_arg_after_named_arg {
for &(index, span, used_as) in &numeric_refences_to_named_arg {
let (position_sp_to_replace, position_sp_for_msg) = match used_as {
Placeholder(pspan) => (span, pspan),