// Generated by delombok at Sun Feb 26 12:31:38 KST 2017
package scouter.bytebuddy.implementation.bytecode.member;

import scouter.bytebuddy.implementation.Implementation;
import scouter.bytebuddy.implementation.bytecode.StackManipulation;
import scouter.bytebuddy.utility.JavaConstant;
import scouter.bytebuddy.jar.asm.MethodVisitor;
import scouter.bytebuddy.jar.asm.Opcodes;

/**
 * An exact invocation of a method handle with a polymorphic signature.
 */
public class HandleInvocation implements StackManipulation {
    /**
     * The name of the {@code java.lang.invoke.MethodHandle} type.
     */
    private static final String METHOD_HANDLE_NAME = "java/lang/invoke/MethodHandle";
    /**
     * The name of the {@code invokeExact} method.
     */
    private static final String INVOKE_EXACT = "invokeExact";
    /**
     * The method type of the invoked handle.
     */
    private final JavaConstant.MethodType methodType;

    /**
     * Creates a public invocation of a method handle.
     *
     * @param methodType The method type of the invoked handle.
     */
    public HandleInvocation(JavaConstant.MethodType methodType) {
        this.methodType = methodType;
    }

    @Override
    public boolean isValid() {
        return true;
    }

    @Override
    public Size apply(MethodVisitor methodVisitor, Implementation.Context implementationContext) {
        methodVisitor.visitMethodInsn(Opcodes.INVOKEVIRTUAL, METHOD_HANDLE_NAME, INVOKE_EXACT, methodType.getDescriptor(), false);
        int size = methodType.getReturnType().getStackSize().getSize() - methodType.getParameterTypes().getStackSize();
        return new Size(size, Math.max(size, 0));
    }

    @java.lang.Override
    @java.lang.SuppressWarnings("all")
    @javax.annotation.Generated("lombok")
    public boolean equals(final java.lang.Object o) {
        if (o == this) return true;
        if (!(o instanceof HandleInvocation)) return false;
        final HandleInvocation other = (HandleInvocation) o;
        if (!other.canEqual((java.lang.Object) this)) return false;
        final java.lang.Object this$methodType = this.methodType;
        final java.lang.Object other$methodType = other.methodType;
        if (this$methodType == null ? other$methodType != null : !this$methodType.equals(other$methodType)) return false;
        return true;
    }

    @java.lang.SuppressWarnings("all")
    @javax.annotation.Generated("lombok")
    protected boolean canEqual(final java.lang.Object other) {
        return other instanceof HandleInvocation;
    }

    @java.lang.Override
    @java.lang.SuppressWarnings("all")
    @javax.annotation.Generated("lombok")
    public int hashCode() {
        final int PRIME = 59;
        int result = 1;
        final java.lang.Object $methodType = this.methodType;
        result = result * PRIME + ($methodType == null ? 43 : $methodType.hashCode());
        return result;
    }
}