commit 1ccb8a78170e6928fd1fc36a4b3b0abf591c7fb4
author jrose <none@none> Sat Oct 05 05:30:39 2013 -0700
committer jrose <none@none> Sat Oct 05 05:30:39 2013 -0700
tree a7d2d9e12b39a269f5e7a975f37c37f891eced4d
parent ea3cc9cabcec552f96aec4ccda1c935876fb5d5c

8001110: method handles should have a collectArguments transform, generalizing asCollector
Summary: promote an existing private method; make unit tests on all argument positions to arity 10 with mixed types
Reviewed-by: twisti, vlivanov

test/java/lang/invoke/JavaDocExamplesTest.java

diff --git a/test/java/lang/invoke/JavaDocExamplesTest.java b/test/java/lang/invoke/JavaDocExamplesTest.java
index 982bfe9..194564f 100644
--- a/test/java/lang/invoke/JavaDocExamplesTest.java
+++ b/test/java/lang/invoke/JavaDocExamplesTest.java
@@ -281,6 +281,28 @@
             }}
     }
 
+    @Test public void testCollectArguments() throws Throwable {
+        {{
+{} /// JAVADOC
+MethodHandle deepToString = publicLookup()
+  .findStatic(Arrays.class, "deepToString", methodType(String.class, Object[].class));
+MethodHandle ts1 = deepToString.asCollector(String[].class, 1);
+assertEquals("[strange]", (String) ts1.invokeExact("strange"));
+MethodHandle ts2 = deepToString.asCollector(String[].class, 2);
+assertEquals("[up, down]", (String) ts2.invokeExact("up", "down"));
+MethodHandle ts3 = deepToString.asCollector(String[].class, 3);
+MethodHandle ts3_ts2 = collectArguments(ts3, 1, ts2);
+assertEquals("[top, [up, down], strange]",
+             (String) ts3_ts2.invokeExact("top", "up", "down", "strange"));
+MethodHandle ts3_ts2_ts1 = collectArguments(ts3_ts2, 3, ts1);
+assertEquals("[top, [up, down], [strange]]",
+             (String) ts3_ts2_ts1.invokeExact("top", "up", "down", "strange"));
+MethodHandle ts3_ts2_ts3 = collectArguments(ts3_ts2, 1, ts3);
+assertEquals("[top, [[up, down, strange], charm], bottom]",
+             (String) ts3_ts2_ts3.invokeExact("top", "up", "down", "strange", "charm", "bottom"));
+            }}
+    }
+
     @Test public void testFoldArguments() throws Throwable {
         {{
 {} /// JAVADOC