private JSType getNominalTypeHelper(
RawNominalType rawType,
Node n,
DeclaredTypeRegistry registry,
ImmutableList<String> outerTypeParameters)
throws UnknownTypeException {
NominalType uninstantiated = rawType.getAsNominalType();
if (!rawType.isGeneric() && !n.hasChildren()) {
return rawType.getInstanceWithNullability(NULLABLE_TYPES_BY_DEFAULT);
}
ImmutableList.Builder<JSType> typeList = ImmutableList.builder();
if (n.hasChildren()) {
// Compute instantiation of polymorphic class/interface.
Preconditions.checkState(n.getFirstChild().isBlock(), n);
for (Node child : n.getFirstChild().children()) {
typeList.add(getTypeFromCommentHelper(child, registry, outerTypeParameters));
}
}
ImmutableList<JSType> typeArguments = typeList.build();
ImmutableList<String> typeParameters = rawType.getTypeParameters();
int typeArgsSize = typeArguments.size();
int typeParamsSize = typeParameters.size();
if (typeArgsSize != typeParamsSize) {
// We used to also warn when (typeArgsSize < typeParamsSize), but it
// happens so often that we stopped. Array, Object and goog.Promise are
// common culprits, but many other types as well.
if (typeArgsSize > typeParamsSize) {
warnings.add(
JSError.make(
n,
INVALID_GENERICS_INSTANTIATION,
uninstantiated.getName(),
String.valueOf(typeParamsSize),
String.valueOf(typeArgsSize)));
}
return maybeMakeNullable(
JSType.fromObjectType(
ObjectType.fromNominalType(
uninstantiated.instantiateGenerics(
fixLengthOfTypeList(typeParameters.size(), typeArguments)))));
}
return maybeMakeNullable(
JSType.fromObjectType(
ObjectType.fromNominalType(uninstantiated.instantiateGenerics(typeArguments))));
}
StringBuilder appendTo(StringBuilder builder) {
if (!hasNonPrototypeProperties()) {
if (fn != null) {
return fn.appendTo(builder);
} else if (getNominalType() != null) {
return getNominalType().appendTo(builder);
}
}
if (nominalType != null && !nominalType.getName().equals("Function")) {
nominalType.appendTo(builder);
} else if (isStruct()) {
builder.append("struct");
} else if (isDict()) {
builder.append("dict");
}
if (fn != null) {
builder.append("<|");
fn.appendTo(builder);
builder.append("|>");
}
if (nominalType == null || !props.isEmpty()) {
builder.append('{');
boolean firstIteration = true;
for (String pname : new TreeSet<>(props.keySet())) {
if (firstIteration) {
firstIteration = false;
} else {
builder.append(", ");
}
builder.append(pname);
builder.append(':');
props.get(pname).appendTo(builder);
}
builder.append('}');
}
if (isLoose) {
builder.append(" (loose)");
}
return builder;
}