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C-Struct like features for Java 6+ to improve performance.

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/*
 * Copyright (C) 2015 SoftIndex LLC.
 *
 * 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 net.wpm.codegen;

import org.objectweb.asm.Type;

import net.wpm.codegen.Context;
import net.wpm.codegen.Expression;

/**
 * Defines method which allow to take current instance
 */
public final class VarThis implements Expression {
	@Override
	public Type type(Context ctx) {
		return ctx.getThisType();
	}

	@Override
	public Type load(Context ctx) {
		ctx.getGeneratorAdapter().loadThis();
		return type(ctx);
	}

	@Override
	public boolean equals(Object o) {
		if (this == o) return true;
		if (o == null || getClass() != o.getClass()) return false;

		return true;
	}

	@Override
	public int hashCode() {
		return 0;
	}
}