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REPL :javap -fun broken under -Ydelambdafy:method #8898

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scabug opened this issue Oct 10, 2014 · 2 comments
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REPL :javap -fun broken under -Ydelambdafy:method #8898

scabug opened this issue Oct 10, 2014 · 2 comments
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2.11.5

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scabug commented Oct 10, 2014

The :javap -fun C command shows the content of (some?) anonymous function declared in C, except for C itself. Its implementation assumes "anonfun" to be found in the class name, which is no longer true since scala/scala@63207e1.

luc$ qs -Ydelambdafy:method
Welcome to Scala version 2.11.3-20141010-082147-3e0164d7be (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_65).
Type in expressions to have them evaluated.
Type :help for more information.

scala> class C { def f = List(1).map(_ + 1) }
defined class C

scala> :javap -fun C
Failed: No anonfuns found.
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scabug commented Oct 10, 2014

Imported From: https://issues.scala-lang.org/browse/SI-8898?orig=1
Reporter: @lrytz

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scabug commented Oct 20, 2014

@som-snytt said:
An approximation, perhaps.

scala/scala#4069

The feature intends to save the user from drilling down into closure implementations. For -Ydelambdafy:inline, it examines the anonfun classes for C. For method, it looks at lamba classes and follows the invokestatic of accessors to select the anonfun methods of C.

So -fun C selects all closures in C, -fun C#f closures in method f.

@scabug scabug closed this as completed Nov 5, 2014
@scabug scabug added this to the 2.11.5 milestone Apr 7, 2017
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