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Diffstat (limited to 'crates/hir-ty/src/infer/expr.rs')
-rw-r--r--crates/hir-ty/src/infer/expr.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/crates/hir-ty/src/infer/expr.rs b/crates/hir-ty/src/infer/expr.rs
index 2e645bf52b..4d4d187fe8 100644
--- a/crates/hir-ty/src/infer/expr.rs
+++ b/crates/hir-ty/src/infer/expr.rs
@@ -775,6 +775,12 @@ impl<'a> InferenceContext<'a> {
},
},
Expr::MacroStmts { tail } => self.infer_expr_inner(*tail, expected),
+ Expr::Underscore => {
+ // Underscore expressions may only appear in assignee expressions,
+ // which are handled by `infer_assignee_expr()`, so any underscore
+ // expression reaching this branch is an error.
+ self.err_ty()
+ }
};
// use a new type variable if we got unknown here
let ty = self.insert_type_vars_shallow(ty);