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Fix #7416: Don't emit signatures of fields of primitive types #7417

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Merged
merged 2 commits into from
Oct 15, 2019
Merged

Fix #7416: Don't emit signatures of fields of primitive types #7417

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cd2b23a
Fix #7416: Don't emit signatures of fields of primitive types
odersky Oct 13, 2019
ebbea1a
Better fix: Exclude in DottyBackendInterface
odersky Oct 13, 2019
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4 changes: 3 additions & 1 deletion compiler/src/dotty/tools/backend/jvm/DottyBackendInterface.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -535,8 +535,10 @@ class DottyBackendInterface(outputDirectory: AbstractFile, val superCallsMap: Ma

private def getGenericSignature(sym: Symbol, owner: Symbol, memberTpe: Type)(implicit ctx: Context): Option[String] =
if (needsGenericSignature(sym)) {
val erasedTypeSym = sym.denot.info.typeSymbol
val erasedTypeSym = TypeErasure.fullErasure(sym.denot.info).typeSymbol
if (erasedTypeSym.isPrimitiveValueClass) {
// Suppress signatures for symbols whose types erase in the end to primitive
// value types. This is needed to fix #7416.
None
} else {
val jsOpt = GenericSignatures.javaSig(sym, memberTpe)
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6 changes: 6 additions & 0 deletions compiler/src/dotty/tools/dotc/core/TypeErasure.scala
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Expand Up @@ -147,6 +147,12 @@ object TypeErasure {
def valueErasure(tp: Type)(implicit ctx: Context): Type =
erasureFn(isJava = false, semiEraseVCs = true, isConstructor = false, wildcardOK = false)(tp)(erasureCtx)

/** Like value class erasure, but value classes erase to their underlying type erasure */
def fullErasure(tp: Type)(implicit ctx: Context): Type =
valueErasure(tp) match
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@Duhemm Duhemm Oct 13, 2019

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Was there some decision about mixing significant indentation syntax with braces syntax? (this match has no braces)

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@odersky odersky Oct 13, 2019

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I currently use indentation syntax for all code I touch to get a better feeling for it. If we decide not to do indentation, we can rewrite to braces automatically.

The reason not to convert to indentation wholesale is that is would destroy commit history.

case ErasedValueType(_, underlying) => erasure(underlying)
case etp => etp

def sigName(tp: Type, isJava: Boolean)(implicit ctx: Context): TypeName = {
val normTp = tp.underlyingIfRepeated(isJava)
val erase = erasureFn(isJava, semiEraseVCs = false, isConstructor = false, wildcardOK = true)
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4 changes: 2 additions & 2 deletions compiler/src/dotty/tools/dotc/transform/CapturedVars.scala
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Expand Up @@ -23,7 +23,7 @@ class CapturedVars extends MiniPhase with IdentityDenotTransformer { thisPhase =
/** the following two members override abstract members in Transform */
val phaseName: String = "capturedVars"

private var Captured: Store.Location[collection.Set[Symbol]] = _
private[this] var Captured: Store.Location[collection.Set[Symbol]] = _
private def captured(implicit ctx: Context) = ctx.store(Captured)

override def initContext(ctx: FreshContext): Unit =
Expand Down Expand Up @@ -82,7 +82,7 @@ class CapturedVars extends MiniPhase with IdentityDenotTransformer { thisPhase =
*/
def refClass(cls: Symbol, isVolatile: Boolean)(implicit ctx: Context): Symbol = {
val refMap = if (isVolatile) refInfo.volatileRefClass else refInfo.refClass
if (cls.isClass)
if (cls.isClass)
refMap.getOrElse(cls, refMap(defn.ObjectClass))
else refMap(defn.ObjectClass)
}
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