bjoernager/rust
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Suggest a path separator if a stray colon is found in a match arm

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Co-authored-by: Esteban Kuber <estebank@users.noreply.github.com>
This commit is contained in:
Fabian Wolff 2021-07-13 13:18:03 +02:00
parent 394804bb23
commit 2362450425
7 changed files with 219 additions and 19 deletions
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12
compiler/rustc_expand/src/expand.rs
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@ -22,7 +22,9 @@ use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_data_structures::sync::Lrc;
use rustc_errors::{Applicability, FatalError, PResult};
use rustc_feature::Features;
use rustc_parse::parser::{AttemptLocalParseRecovery, ForceCollect, Parser, RecoverComma};
use rustc_parse::parser::{
AttemptLocalParseRecovery, ForceCollect, Parser, RecoverColon, RecoverComma,
};
use rustc_parse::validate_attr;
use rustc_session::lint::builtin::UNUSED_DOC_COMMENTS;
use rustc_session::lint::BuiltinLintDiagnostics;
@ -930,9 +932,11 @@ pub fn parse_ast_fragment<'a>(
}
}
AstFragmentKind::Ty => AstFragment::Ty(this.parse_ty()?),
AstFragmentKind::Pat => {
AstFragment::Pat(this.parse_pat_allow_top_alt(None, RecoverComma::No)?)
}
AstFragmentKind::Pat => AstFragment::Pat(this.parse_pat_allow_top_alt(
None,
RecoverComma::No,
RecoverColon::Yes,
)?),
AstFragmentKind::Arms
| AstFragmentKind::Fields
| AstFragmentKind::FieldPats