Merge pull request #1849 from som-snytt/issue/6894-javap-app

Repl javap decodes various synthetic names for us (fixing SI-6894)

1 files changed, 26 insertions, 0 deletions

diff --git a/src/partest/scala/tools/partest/JavapTest.scala b/src/partest/scala/tools/partest/JavapTest.scala
new file mode 100644
index 0000000000..3cb3dc6ca8
--- /dev/null
+++ b/src/partest/scala/tools/partest/JavapTest.scala
@@ -0,0 +1,26 @@
+
+package scala.tools.partest
+
+import scala.util.{Try,Success,Failure}
+import java.lang.System.{out => sysout}
+
+/** A trait for testing repl's javap command
+ *  or possibly examining its output.
+ */
+abstract class JavapTest extends ReplTest {
+
+  /** Your Assertion Here, whatever you want to bejahen.
+   *  Assertions must be satisfied by all flavors of javap
+   *  and should not be fragile with respect to compiler output.
+   */
+  def yah(res: Seq[String]): Boolean
+
+  def baddies = List(":javap unavailable", ":javap not yet working")
+
+  // give it a pass if javap is broken
+  override def show() = try {
+    val res = eval().toSeq
+    val unsupported = res exists (s => baddies exists (s contains _))
+    assert ((unsupported || yah(res)), res.mkString("","\n","\n"))
+  } catch { case ae: AssertionError => ae.printStackTrace(sysout) }
+}