Minor. Renamed variables where 'projection kind' term should be used instead of 'variance'.

This commit is contained in:
Evgeny Gerashchenko
2012-11-13 19:10:42 +04:00
parent 4a37c130df
commit 5ff718b94c
2 changed files with 23 additions and 23 deletions
@@ -116,36 +116,36 @@ public class SignaturesPropagation {
boolean covariantPosition = effectiveProjectionKind == TypeCheckingProcedure.EnrichedProjectionKind.OUT;
JetType type = modifyReturnTypeAccordingToSuperMethods(argumentType, argTypesFromSuper, covariantPosition);
Variance variance = calculateArgumentVarianceFromSuper(argument, projectionsFromSuper);
Variance projectionKind = calculateArgumentProjectionKindFromSuper(argument, projectionsFromSuper);
resultArguments.add(new TypeProjection(variance, type));
resultArguments.add(new TypeProjection(projectionKind, type));
}
return resultArguments;
}
private static Variance calculateArgumentVarianceFromSuper(TypeProjection argument, List<TypeProjection> projectionsFromSuper) {
Set<Variance> variancesInSuper = Sets.newHashSet();
private static Variance calculateArgumentProjectionKindFromSuper(TypeProjection argument, List<TypeProjection> projectionsFromSuper) {
Set<Variance> projectionKindsInSuper = Sets.newHashSet();
for (TypeProjection projection : projectionsFromSuper) {
variancesInSuper.add(projection.getProjectionKind());
projectionKindsInSuper.add(projection.getProjectionKind());
}
Variance defaultVariance = argument.getProjectionKind();
if (variancesInSuper.size() == 0) {
return defaultVariance;
Variance defaultProjectionKind = argument.getProjectionKind();
if (projectionKindsInSuper.size() == 0) {
return defaultProjectionKind;
}
else if (variancesInSuper.size() == 1) {
Variance varianceInSuper = variancesInSuper.iterator().next();
if (defaultVariance == Variance.INVARIANT || defaultVariance == varianceInSuper) {
return varianceInSuper;
else if (projectionKindsInSuper.size() == 1) {
Variance projectionKindInSuper = projectionKindsInSuper.iterator().next();
if (defaultProjectionKind == Variance.INVARIANT || defaultProjectionKind == projectionKindInSuper) {
return projectionKindInSuper;
}
else {
// TODO report error
return defaultVariance;
return defaultProjectionKind;
}
}
else {
// TODO report error
return defaultVariance;
return defaultProjectionKind;
}
}
@@ -123,30 +123,30 @@ class TypeTransformingVisitor extends JetVisitor<JetType, Void> {
TypeProjection argument = arguments.get(i);
JetType alternativeType = computeType(argumentAlternativeTypeElement, argument.getType(), originalToAltTypeParameters);
Variance variance = argument.getProjectionKind();
Variance altVariance;
Variance projectionKind = argument.getProjectionKind();
Variance altProjectionKind;
if (type instanceof JetUserType) {
JetTypeProjection typeProjection = ((JetUserType) type).getTypeArguments().get(i);
switch (typeProjection.getProjectionKind()) {
case IN:
altVariance = Variance.IN_VARIANCE;
altProjectionKind = Variance.IN_VARIANCE;
break;
case OUT:
altVariance = Variance.OUT_VARIANCE;
altProjectionKind = Variance.OUT_VARIANCE;
break;
case STAR:
throw new AlternativeSignatureMismatchException("Star projection is not available in alternative signatures");
default:
altVariance = Variance.INVARIANT;
altProjectionKind = Variance.INVARIANT;
}
if (altVariance != variance && variance != Variance.INVARIANT) {
throw new AlternativeSignatureMismatchException("Variance mismatch, actual: %s, in alternative signature: %s", variance, altVariance);
if (altProjectionKind != projectionKind && projectionKind != Variance.INVARIANT) {
throw new AlternativeSignatureMismatchException("Variance mismatch, actual: %s, in alternative signature: %s", projectionKind, altProjectionKind);
}
}
else {
altVariance = variance;
altProjectionKind = projectionKind;
}
altArguments.add(new TypeProjection(altVariance, alternativeType));
altArguments.add(new TypeProjection(altProjectionKind, alternativeType));
}
TypeConstructor typeConstructor;