org.jetbrains.kotlin.name.FqName Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of kotlin-compiler-embeddable Show documentation
Show all versions of kotlin-compiler-embeddable Show documentation
the Kotlin compiler embeddable
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.name;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.utils.StringsKt;
import java.util.List;
public final class FqName {
@NotNull
public static FqName fromSegments(@NotNull List names) {
return new FqName(StringsKt.join(names, "."));
}
public static final FqName ROOT = new FqName("");
@NotNull
private final FqNameUnsafe fqName;
// cache
private transient FqName parent;
public FqName(@NotNull String fqName) {
this.fqName = new FqNameUnsafe(fqName, this);
}
public FqName(@NotNull FqNameUnsafe fqName) {
this.fqName = fqName;
}
private FqName(@NotNull FqNameUnsafe fqName, FqName parent) {
this.fqName = fqName;
this.parent = parent;
}
@NotNull
public String asString() {
return fqName.asString();
}
@NotNull
public FqNameUnsafe toUnsafe() {
return fqName;
}
public boolean isRoot() {
return fqName.isRoot();
}
@NotNull
public FqName parent() {
if (parent != null) {
return parent;
}
if (isRoot()) {
throw new IllegalStateException("root");
}
parent = new FqName(fqName.parent());
return parent;
}
@NotNull
public FqName child(@NotNull Name name) {
return new FqName(fqName.child(name), this);
}
@NotNull
public Name shortName() {
return fqName.shortName();
}
@NotNull
public Name shortNameOrSpecial() {
return fqName.shortNameOrSpecial();
}
@NotNull
public List pathSegments() {
return fqName.pathSegments();
}
public boolean startsWith(@NotNull Name segment) {
return fqName.startsWith(segment);
}
public boolean startsWith(@NotNull FqName other) {
return fqName.startsWith(other.fqName);
}
@NotNull
public static FqName topLevel(@NotNull Name shortName) {
return new FqName(FqNameUnsafe.topLevel(shortName));
}
@Override
public String toString() {
return fqName.toString();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof FqName)) return false;
FqName otherFqName = (FqName) o;
if (!fqName.equals(otherFqName.fqName)) return false;
return true;
}
@Override
public int hashCode() {
return fqName.hashCode();
}
}