1 files changed, 83 insertions, 0 deletions
diff --git a/tests/ui/expr/if/if-without-else-as-fn-expr.stderr b/tests/ui/expr/if/if-without-else-as-fn-expr.stderr
new file mode 100644
index 00000000000..4daf27493c1
--- /dev/null
+++ b/tests/ui/expr/if/if-without-else-as-fn-expr.stderr
@@ -0,0 +1,83 @@
+error[E0317]: `if` may be missing an `else` clause
+  --> $DIR/if-without-else-as-fn-expr.rs:2:5
+   |
+LL |   fn foo(bar: usize) -> usize {
+   |                         ----- expected `usize` because of this return type
+LL | /     if bar % 5 == 0 {
+LL | |         return 3;
+LL | |     }
+   | |_____^ expected `usize`, found `()`
+   |
+   = note: `if` expressions without `else` evaluate to `()`
+   = help: consider adding an `else` block that evaluates to the expected type
+
+error[E0317]: `if` may be missing an `else` clause
+  --> $DIR/if-without-else-as-fn-expr.rs:9:20
+   |
+LL |       let x: usize = if bar % 5 == 0 {
+   |  _________-__________^
+   | |         |
+   | |         expected because of this assignment
+LL | |         return 3;
+LL | |     };
+   | |_____^ expected `usize`, found `()`
+   |
+   = note: `if` expressions without `else` evaluate to `()`
+   = help: consider adding an `else` block that evaluates to the expected type
+
+error[E0317]: `if` may be missing an `else` clause
+  --> $DIR/if-without-else-as-fn-expr.rs:17:5
+   |
+LL |   fn foo3(bar: usize) -> usize {
+   |                          ----- expected `usize` because of this return type
+LL | /     if bar % 5 == 0 {
+LL | |         3
+LL | |     }
+   | |_____^ expected `usize`, found `()`
+   |
+   = note: `if` expressions without `else` evaluate to `()`
+   = help: consider adding an `else` block that evaluates to the expected type
+
+error[E0317]: `if` may be missing an `else` clause
+  --> $DIR/if-without-else-as-fn-expr.rs:24:5
+   |
+LL |   fn foo_let(bar: usize) -> usize {
+   |                             ----- expected `usize` because of this return type
+LL | /     if let 0 = 1 {
+LL | |         return 3;
+LL | |     }
+   | |_____^ expected `usize`, found `()`
+   |
+   = note: `if` expressions without `else` evaluate to `()`
+   = help: consider adding an `else` block that evaluates to the expected type
+
+error[E0317]: `if` may be missing an `else` clause
+  --> $DIR/if-without-else-as-fn-expr.rs:31:20
+   |
+LL |       let x: usize = if let 0 = 1 {
+   |  _________-__________^
+   | |         |
+   | |         expected because of this assignment
+LL | |         return 3;
+LL | |     };
+   | |_____^ expected `usize`, found `()`
+   |
+   = note: `if` expressions without `else` evaluate to `()`
+   = help: consider adding an `else` block that evaluates to the expected type
+
+error[E0317]: `if` may be missing an `else` clause
+  --> $DIR/if-without-else-as-fn-expr.rs:39:5
+   |
+LL |   fn foo3_let(bar: usize) -> usize {
+   |                              ----- expected `usize` because of this return type
+LL | /     if let 0 = 1 {
+LL | |         3
+LL | |     }
+   | |_____^ expected `usize`, found `()`
+   |
+   = note: `if` expressions without `else` evaluate to `()`
+   = help: consider adding an `else` block that evaluates to the expected type
+
+error: aborting due to 6 previous errors
+
+For more information about this error, try `rustc --explain E0317`.