private static boolean isSamInterface(@NotNull ClassDescriptor klass) {
if (klass.getKind() != ClassKind.TRAIT) {
return false;
}
List<CallableMemberDescriptor> abstractMembers = getAbstractMembers(klass.getDefaultType());
if (abstractMembers.size() == 1) {
CallableMemberDescriptor member = abstractMembers.get(0);
if (member instanceof SimpleFunctionDescriptor) {
return member.getTypeParameters().isEmpty();
}
}
return false;
}
private void renderWhereSuffix(
@NotNull CallableMemberDescriptor callable, @NotNull StringBuilder builder) {
boolean first = true;
for (TypeParameterDescriptor typeParameter : callable.getTypeParameters()) {
if (typeParameter.getUpperBounds().size() > 1) {
for (JetType upperBound : typeParameter.getUpperBounds()) {
if (first) {
builder.append(" ");
builder.append(renderKeyword("where"));
builder.append(" ");
} else {
builder.append(", ");
}
builder.append(typeParameter.getName());
builder.append(" : ");
builder.append(escape(renderType(upperBound)));
first = false;
}
}
}
}
