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Display witnesses of non-exhaustive match

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Reporting format follows rustc and shows at most three witnesses.
This commit is contained in:
iDawer 2022-06-20 15:48:09 +05:00
parent ad6810e90b
commit 4ff9bedbed
6 changed files with 320 additions and 80 deletions
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1
crates/hir/src/diagnostics.rs
View file

@ -150,6 +150,7 @@ pub struct MismatchedArgCount {
pub struct MissingMatchArms {
pub file: HirFileId,
pub match_expr: AstPtr<ast::Expr>,
pub uncovered_patterns: String,
}
#[derive(Debug)]

3
crates/hir/src/lib.rs
View file

@ -1295,7 +1295,7 @@ impl DefWithBody {
);
}
}
BodyValidationDiagnostic::MissingMatchArms { match_expr } => {
BodyValidationDiagnostic::MissingMatchArms { match_expr, uncovered_patterns } => {
match source_map.expr_syntax(match_expr) {
Ok(source_ptr) => {
let root = source_ptr.file_syntax(db.upcast());
@ -1307,6 +1307,7 @@ impl DefWithBody {
MissingMatchArms {
file: source_ptr.file_id,
match_expr: AstPtr::new(&match_expr),
uncovered_patterns,
}
.into(),
);