@Nullable
@Override
protected ClassData getClassData(@NotNull ClassId classId) {
InputStream stream =
getStreamNullable(BuiltInsSerializationUtil.getClassMetadataPath(classId));
if (stream == null) {
return null;
}
try {
ProtoBuf.Class classProto = ProtoBuf.Class.parseFrom(stream);
Name expectedShortName = classId.getRelativeClassName().shortName();
Name actualShortName =
nameResolver.getClassId(classProto.getFqName()).getRelativeClassName().shortName();
if (!actualShortName.isSpecial() && !actualShortName.equals(expectedShortName)) {
// Workaround for case-insensitive file systems,
// otherwise we'd find "Collection" for "collection" etc
return null;
}
return new ClassData(nameResolver, classProto);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
@Nullable
private static JetTypeConstraint findTypeParameterConstraint(
@NotNull JetFunction function, @NotNull Name typeParameterName, int index) {
if (index != 0) {
int currentIndex = 0;
for (JetTypeConstraint constraint : function.getTypeConstraints()) {
JetSimpleNameExpression parameterName = constraint.getSubjectTypeParameterName();
assert parameterName != null;
if (typeParameterName.equals(parameterName.getReferencedNameAsName())) {
currentIndex++;
}
if (currentIndex == index) {
return constraint;
}
}
}
return null;
}