public QualifiedName rest() {
if (isSimpleName()) {
throw new UnsupportedOperationException();
}
if (base.isSimpleName()) {
return new QualifiedName(name);
} else {
return new QualifiedName(base.rest(), name);
}
}
public String firstSegment() {
if (isSimpleName()) {
return name;
} else {
return base.firstSegment();
}
}
public static QualifiedName create(List<String> base) {
if (base.isEmpty()) {
throw new IllegalArgumentException();
} else if (base.size() == 1) {
return new QualifiedName(base.get(0));
} else {
return new QualifiedName(
QualifiedName.create(base.subList(0, base.size() - 1)), base.get(base.size() - 1));
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
QualifiedName that = (QualifiedName) o;
if (base != null ? !base.equals(that.base) : that.base != null) return false;
if (!name.equals(that.name)) return false;
return true;
}
@Override
public Optional<Node> findAmongImported(String name, SymbolResolver resolver) {
if (alias == null) {
throw new UnsupportedOperationException();
} else {
if (alias.equals(name)) {
String canonicalTypeName = packagePart.qualifiedName() + "." + typeName;
TypeDefinition typeDefinition =
resolver.getTypeDefinitionIn(canonicalTypeName, this, resolver);
Node importedValue = typeDefinition.getField(fieldsPath, resolver);
return Optional.of(importedValue);
} else {
return Optional.empty();
}
}
}
@Override
public int hashCode() {
int result = base != null ? base.hashCode() : 0;
result = 31 * result + name.hashCode();
return result;
}