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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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 *

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package java.lang.constant;

import java.lang.invoke.MethodHandle;

import java.lang.invoke.MethodHandles;

import java.lang.invoke.MethodType;

import static java.lang.constant.ConstantDescs.BSM_INVOKE;

import static java.lang.constant.ConstantDescs.CD_MethodHandle;

import static java.util.Objects.requireNonNull;

/**

 * A <a href="package-summary.html#nominal">nominal descriptor</a> for a

 * {@link MethodHandle} constant that performs a {@link MethodHandle#asType(MethodType)}

 * adaptation on another {@link MethodHandle}.

 */

final class AsTypeMethodHandleDesc extends DynamicConstantDesc<MethodHandle>

        implements MethodHandleDesc {

    private final MethodHandleDesc underlying;

    private final MethodTypeDesc type;

    AsTypeMethodHandleDesc(MethodHandleDesc underlying, MethodTypeDesc type) {

        super(BSM_INVOKE, ConstantDescs.DEFAULT_NAME, CD_MethodHandle,

              ConstantDescs.MHD_METHODHANDLE_ASTYPE, underlying, type);

        this.underlying = requireNonNull(underlying);

        this.type = requireNonNull(type);

    }

    @Override

    public MethodTypeDesc invocationType() {

        return type;

    }

    @Override

    public MethodHandle resolveConstantDesc(MethodHandles.Lookup lookup)

            throws ReflectiveOperationException {

        MethodHandle handle = (MethodHandle) underlying.resolveConstantDesc(lookup);

        MethodType methodType = (MethodType) type.resolveConstantDesc(lookup);

        return handle.asType(methodType);

    }

    @Override

    public String toString() {

        return  String.format("%s.asType%s", underlying.toString(), type.displayDescriptor());

    }

}