// Copyright 2017 The Bazel Authors. All rights reserved. // // 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.google.devtools.build.lib.packages; import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; import com.google.devtools.build.lib.events.Location; import com.google.devtools.build.lib.syntax.EvalException; import com.google.devtools.build.lib.syntax.FunctionSignature; import com.google.devtools.build.lib.syntax.SkylarkType; import com.google.devtools.build.lib.util.Pair; import java.util.Map; import javax.annotation.Nullable; /** * Base class for declared providers {@see ClassObjectConstructor} defined in native code. * *
Every non-abstract derived class of {@link NativeClassObjectConstructor} corresponds to a * single declared provider. This is enforced by final {@link #equals(Object)} and {@link * #hashCode()}. * *
Typical implementation of a non-constructable from Skylark declared provider is as follows: * *
* public static final ClassObjectConstructor CC_LINK_PARAMS = * new NativeClassObjectConstructor("link_params") { }; ** * To allow construction from Skylark and custom construction logic, override {@link * #createInstanceFromSkylark(Object[], Location)} (see {@link #STRUCT} for an example. */ @Immutable public abstract class NativeClassObjectConstructor
Singleton, instance is {@link #STRUCT}.
*/
public static final class StructConstructor
extends NativeClassObjectConstructor