/*
* Copyright 2000-2012 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 com.intellij.util.text;
import org.jetbrains.annotations.NotNull;
import java.lang.reflect.Constructor;
public class StringFactory {
// String(char[], boolean). Works since JDK1.7
private static Constructor<String> ourConstructor;
static {
try {
Constructor<String> constructor = String.class.getDeclaredConstructor(char[].class, boolean.class);
constructor.setAccessible(true);
ourConstructor = constructor;
}
catch (Throwable ignored) {
}
}
/**
* @return new instance of String which backed by chars array.
*
* CAUTION. EXTREMELY DANGEROUS.
* DO NOT USE THIS METHOD UNLESS YOU ARE TOO DESPERATE
*/
@NotNull
public static String createShared(@NotNull char[] chars) {
if (ourConstructor != null) {
try {
return ourConstructor.newInstance(chars, Boolean.TRUE);
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
return new String(chars);
}
}