diff options
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/Namers.scala | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Namers.scala b/src/compiler/scala/tools/nsc/typechecker/Namers.scala index 379f56521b..8f542af417 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Namers.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Namers.scala @@ -1420,11 +1420,20 @@ trait Namers extends MethodSynthesis { if (!annotated.isInitialized) tree match { case defn: MemberDef => val ainfos = defn.mods.annotations filterNot (_ eq null) map { ann => + val ctx = typer.context + val annCtx = ctx.make(ann) + annCtx.setReportErrors() // need to be lazy, #1782. beforeTyper to allow inferView in annotation args, SI-5892. AnnotationInfo lazily { - val context1 = typer.context.make(ann) - context1.setReportErrors() - beforeTyper(newTyper(context1) typedAnnotation ann) + if (typer.context ne ctx) + log(sm"""|The var `typer.context` in ${Namer.this} was mutated before the annotation ${ann} was forced. + | + |current value = ${typer.context} + |original value = $ctx + | + |This confirms the hypothesis for the cause of SI-7603. If you see this message, please comment on that ticket.""") + + beforeTyper(newTyper(annCtx) typedAnnotation ann) } } if (ainfos.nonEmpty) { |