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Co-authored-by: bjorn3 <bjorn3@users.noreply.github.com>
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ivan770 2020-12-09 10:17:28 +02:00 committed by GitHub
parent 7738467e0a
commit 86c183716c
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1 changed files with 20 additions and 17 deletions
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37
crates/hir_ty/src/diagnostics/expr.rs
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@ -77,13 +77,11 @@ pub(super) fn validate_body(&mut self, db: &dyn HirDatabase) {
}
}
let body_expr = &body[body.body_expr];
if let Expr::Block { tail: Some(t), .. } = body_expr {
self.validate_results_in_tail_expr(body.body_expr, *t, db);
} else {
if let Expr::Block { statements, .. } = body_expr {
if let Some(Statement::Expr(id)) = statements.last() {
self.validate_missing_tail_expr(body.body_expr, *id, db);
}
if let Expr::Block { statements, tail, .. } = body_expr {
if let Some(t) = tail {
self.validate_results_in_tail_expr(body.body_expr, *t, db);
} else if let Some(Statement::Expr(id)) = statements.last() {
self.validate_missing_tail_expr(body.body_expr, *id, db);
}
}
}
@ -336,17 +334,22 @@ fn validate_missing_tail_expr(
None => return,
};
if let Some(possible_tail_ty) = self.infer.type_of_expr.get(possible_tail_id) {
if mismatch.actual == Ty::unit() && mismatch.expected == *possible_tail_ty {
let (_, source_map) = db.body_with_source_map(self.owner.into());
let possible_tail_ty = if let Some(possible_tail_ty) = self.infer.type_of_expr.get(possible_tail_id) {
possible_tail_ty
} else {
return;
};
if let Ok(source_ptr) = source_map.expr_syntax(possible_tail_id) {
self.sink.push(RemoveThisSemicolon {
file: source_ptr.file_id,
expr: source_ptr.value,
});
}
}
if mismatch.actual != Ty::unit() || mismatch.expected != *possible_tail_ty {
return;
}
let (_, source_map) = db.body_with_source_map(self.owner.into());
if let Ok(source_ptr) = source_map.expr_syntax(possible_tail_id) {
self.sink.push(RemoveThisSemicolon {
file: source_ptr.file_id,
expr: source_ptr.value,
});
}
}
}