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resetLocalAttrs does not work with lazy val #8499

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scabug opened this issue Apr 14, 2014 · 3 comments
Closed

resetLocalAttrs does not work with lazy val #8499

scabug opened this issue Apr 14, 2014 · 3 comments
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@scabug
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@scabug scabug commented Apr 14, 2014

Welcome to Scala version 2.10.3 (Java HotSpot(TM) 64-Bit Server VM, Java 1.7.0_45).
Type in expressions to have them evaluated.
Type :help for more information.

scala> object Mover {
     |   import scala.reflect.macros.Context
     |   def moveTreeMacro(c: Context)(e: c.Expr[Any]): c.Expr[Any] = {
     |     import c._
     |     import c.universe._
     |     val ee = c.Expr(c.resetLocalAttrs(e.tree))
     |     reify {
     |       new AnyRef {
     |         def moved = {
     |           ee.splice
     |         }
     |       }
     |     }
     |   }
     |   import scala.language.experimental.macros
     |   def moveTree(e: Any): Any = macro moveTreeMacro
     | }
defined module Mover

scala> Mover.moveTree { lazy val a = 1 }
<console>:9: error: missing parameter type
              Mover.moveTree { lazy val a = 1 }
                                        ^
@scabug
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@scabug scabug commented Apr 14, 2014

Imported From: https://issues.scala-lang.org/browse/SI-8499?orig=1
Reporter: @Atry
Affected Versions: 2.10.3, 2.10.4
See #5464, #5466

@scabug scabug added the macros label Apr 7, 2017
@joroKr21
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@joroKr21 joroKr21 commented Feb 28, 2018

Works in 2.12 after lazy vals got reworked

@SethTisue SethTisue added this to the 2.12.0 milestone Feb 28, 2018
@SethTisue SethTisue closed this Feb 28, 2018
@SethTisue
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@SethTisue SethTisue commented Feb 28, 2018

@joroKr21 thanks for the ticket triage help, much appreciated

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