userdiff: improve java hunk header regex
Currently, the git diff hunk headers show the wrong method signature if the
method has a qualified return type, an array return type, or a generic return
type because the regex doesn't allow dots (.), [], or < and > in the return
type. Also, type parameter declarations couldn't be matched.
Add several t4018 tests asserting the right hunk headers for different cases:
- enum constant change
- change in generic method with bounded type parameters
- change in generic method with wildcard
- field change in a nested class
Signed-off-by: Tassilo Horn <tsdh@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t4018/java-method-return-generic-bounded b/t/t4018/java-method-return-generic-bounded
new file mode 100644
index 0000000..66dd78c
--- /dev/null
+++ b/t/t4018/java-method-return-generic-bounded
@@ -0,0 +1,9 @@
+class MyExample {
+ public <T extends Bar & Foo<T>, R> Map<T, R[]> foo(String[] RIGHT) {
+ someMethodCall();
+ someOtherMethod()
+ .doThat();
+ // Whatever...
+ return (List<T>) Arrays.asList("ChangeMe");
+ }
+}
