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• MemoizeBoxed.java

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net.amygdalum.testrecorder.asm.MemoizeBoxed Maven / Gradle / Ivy

package net.amygdalum.testrecorder.asm;

import static net.amygdalum.testrecorder.asm.ByteCode.boxedType;
import static org.objectweb.asm.Opcodes.DUP;
import static org.objectweb.asm.Opcodes.DUP2;
import static org.objectweb.asm.Opcodes.ISTORE;

import org.objectweb.asm.Type;
import org.objectweb.asm.tree.InsnList;
import org.objectweb.asm.tree.InsnNode;
import org.objectweb.asm.tree.VarInsnNode;

public class MemoizeBoxed implements SequenceInstruction {

	private String variableName;
	private Type type;

	public MemoizeBoxed(String variableName, Type type) {
		this.variableName = variableName;
		this.type = type;
	}

	@Override
	public InsnList build(MethodContext context) {
		InsnList insnList = new InsnList();
		if (type.getSize() == 1) {
			insnList.add(new InsnNode(DUP));
		} else if (type.getSize() == 2) {
			insnList.add(new InsnNode(DUP2));
		}
		insnList.add(new BoxPrimitives(type).build(context));
		Local local = context.newLocal(variableName, boxedType(type));
		insnList.add(new VarInsnNode(local.type.getOpcode(ISTORE), local.index));
		return insnList;
	}

}