Crash after scope extrusion in macros #8216

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nicolasstucki opened this issue Feb 5, 2020 · 0 comments · Fixed by #11442

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nicolasstucki commented Feb 5, 2020 •

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// Macro_1.scala

package macros
import scala.quoted._

var saved = Option.empty[Expr[Any]]

def oops(c: Expr[Any])(using QuoteContext) = {
  if saved.isEmpty then
    saved = Some(c)
    c
  else saved.get
}
inline def test(c: Any) = ${oops('c)}

// Test_2.scala

object Test {
  class A(x: Int) {
    macros.test(x)
  }
  class B(y: String) {
    macros.test(y)
  }
}

Originally posted by @LPTK in #7142 (comment)

nicolasstucki added area:meta-programming itype:bug itype:crash labels

odersky assigned nicolasstucki

nicolasstucki linked a pull request

that will close this issue

Add add informative scope extrusion check #11442

Merged

nicolasstucki closed this as completed in #11442

Kordyjan added this to the 3.0.0 milestone

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