com.google.gwt.dev.jjs.ast.JCharLiteral Maven / Gradle / Ivy
/*
* Copyright 2008 Google Inc.
*
* 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.gwt.dev.jjs.ast;
import com.google.gwt.dev.jjs.SourceInfo;
import com.google.gwt.dev.jjs.SourceOrigin;
/**
* Java character literal expression.
*/
public class JCharLiteral extends JValueLiteral {
public static final JCharLiteral NULL = new JCharLiteral(
SourceOrigin.UNKNOWN, (char) 0);
public static JCharLiteral get(char value) {
return (value == 0) ? NULL : new JCharLiteral(SourceOrigin.UNKNOWN, value);
}
private final char value;
public JCharLiteral(SourceInfo sourceInfo, char value) {
super(sourceInfo);
this.value = value;
}
@Override
public JValueLiteral cloneFrom(JValueLiteral value) {
Object valueObj = value.getValueObj();
if (valueObj instanceof Character) {
return value;
} else if (valueObj instanceof Number) {
Number number = (Number) valueObj;
return new JCharLiteral(value.getSourceInfo(), (char) number.intValue());
}
return null;
}
public JType getType() {
return JPrimitiveType.CHAR;
}
public char getValue() {
return value;
}
@Override
public Object getValueObj() {
return Character.valueOf(value);
}
public void traverse(JVisitor visitor, Context ctx) {
if (visitor.visit(this, ctx)) {
}
visitor.endVisit(this, ctx);
}
private Object readResolve() {
return (value == 0) ? NULL : this;
}
}