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-rw-r--r--tests/ui/parser/fn-body-optional-semantic-fail.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/parser/fn-body-optional-semantic-fail.rs b/tests/ui/parser/fn-body-optional-semantic-fail.rs
new file mode 100644
index 000000000..12df48880
--- /dev/null
+++ b/tests/ui/parser/fn-body-optional-semantic-fail.rs
@@ -0,0 +1,27 @@
+// Tests the different rules for `fn` forms requiring the presence or lack of a body.
+
+fn main() {
+ fn f1(); //~ ERROR free function without a body
+ fn f2() {} // OK.
+
+ trait X {
+ fn f1(); // OK.
+ fn f2() {} // OK.
+ }
+
+ struct Y;
+ impl X for Y {
+ fn f1(); //~ ERROR associated function in `impl` without body
+ fn f2() {} // OK.
+ }
+
+ impl Y {
+ fn f3(); //~ ERROR associated function in `impl` without body
+ fn f4() {} // OK.
+ }
+
+ extern "C" {
+ fn f5(); // OK.
+ fn f6() {} //~ ERROR incorrect function inside `extern` block
+ }
+}