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/*
* Copyright 2016 Google Inc. All Rights Reserved.
*
* 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 com.google.turbine.binder.sym;
import com.google.errorprone.annotations.Immutable;
import org.jspecify.nullness.Nullable;
/**
* A class symbol.
*
* <p>Turbine identifies classes by their binary string name. Symbols are immutable and do not hold
* any semantic information: the information that has been determined at the current phase (e.g.
* about super-types and members) is held externally.
*/
// TODO(cushon): investigate performance impact of interning names/symbols
@Immutable
public class ClassSymbol implements Symbol {
public static final ClassSymbol OBJECT = new ClassSymbol("java/lang/Object");
public static final ClassSymbol STRING = new ClassSymbol("java/lang/String");
public static final ClassSymbol ENUM = new ClassSymbol("java/lang/Enum");
public static final ClassSymbol RECORD = new ClassSymbol("java/lang/Record");
public static final ClassSymbol ANNOTATION = new ClassSymbol("java/lang/annotation/Annotation");
public static final ClassSymbol INHERITED = new ClassSymbol("java/lang/annotation/Inherited");
public static final ClassSymbol CLONEABLE = new ClassSymbol("java/lang/Cloneable");
public static final ClassSymbol SERIALIZABLE = new ClassSymbol("java/io/Serializable");
public static final ClassSymbol DEPRECATED = new ClassSymbol("java/lang/Deprecated");
public static final ClassSymbol PROFILE_ANNOTATION = new ClassSymbol("jdk/Profile+Annotation");
public static final ClassSymbol PROPRIETARY_ANNOTATION =
new ClassSymbol("sun/Proprietary+Annotation");
public static final ClassSymbol ERROR = new ClassSymbol("<error>");
public static final ClassSymbol CHARACTER = new ClassSymbol("java/lang/Character");
public static final ClassSymbol SHORT = new ClassSymbol("java/lang/Short");
public static final ClassSymbol INTEGER = new ClassSymbol("java/lang/Integer");
public static final ClassSymbol LONG = new ClassSymbol("java/lang/Long");
public static final ClassSymbol FLOAT = new ClassSymbol("java/lang/Float");
public static final ClassSymbol DOUBLE = new ClassSymbol("java/lang/Double");
public static final ClassSymbol BOOLEAN = new ClassSymbol("java/lang/Boolean");
public static final ClassSymbol BYTE = new ClassSymbol("java/lang/Byte");
private final String className;
public ClassSymbol(String className) {
this.className = className;
}
@Override
public int hashCode() {
return className.hashCode();
}
@Override
public String toString() {
return className.replace('/', '.');
}
@Override
public boolean equals(@Nullable Object o) {
return o instanceof ClassSymbol && className.equals(((ClassSymbol) o).className);
}
/** The JVMS 4.2.1 binary name of the class. */
public String binaryName() {
return className;
}
@Override
public Kind symKind() {
return Kind.CLASS;
}
public String simpleName() {
return binaryName().substring(binaryName().lastIndexOf('/') + 1);
}
public String packageName() {
int idx = binaryName().lastIndexOf('/');
return idx != -1 ? binaryName().substring(0, idx) : "";
}
public PackageSymbol owner() {
return new PackageSymbol(packageName());
}
}
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