com.facebook.buck.ocaml.OcamlLibraryDescription.java Source code

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Here is the source code for com.facebook.buck.ocaml.OcamlLibraryDescription.java

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/*
 * Copyright 2013-present Facebook, Inc.
 *
 * 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.facebook.buck.ocaml;

import com.facebook.buck.cxx.CxxPlatforms;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.parser.NoSuchBuildTargetException;
import com.facebook.buck.rules.AbstractDescriptionArg;
import com.facebook.buck.rules.BuildRule;
import com.facebook.buck.rules.BuildRuleParams;
import com.facebook.buck.rules.BuildRuleResolver;
import com.facebook.buck.rules.CellPathResolver;
import com.facebook.buck.rules.Description;
import com.facebook.buck.rules.ImplicitDepsInferringDescription;
import com.facebook.buck.rules.TargetGraph;
import com.facebook.buck.rules.coercer.OcamlSource;
import com.facebook.infer.annotation.SuppressFieldNotInitialized;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedSet;

import java.util.Optional;

public class OcamlLibraryDescription implements Description<OcamlLibraryDescription.Arg>,
        ImplicitDepsInferringDescription<OcamlLibraryDescription.Arg> {

    private final OcamlBuckConfig ocamlBuckConfig;

    public OcamlLibraryDescription(OcamlBuckConfig ocamlBuckConfig) {
        this.ocamlBuckConfig = ocamlBuckConfig;
    }

    @Override
    public Arg createUnpopulatedConstructorArg() {
        return new Arg();
    }

    @Override
    public <A extends Arg> BuildRule createBuildRule(TargetGraph targetGraph, BuildRuleParams params,
            BuildRuleResolver resolver, A args) throws NoSuchBuildTargetException {

        ImmutableList<OcamlSource> srcs = args.srcs;
        ImmutableList.Builder<String> flags = ImmutableList.builder();
        flags.addAll(args.compilerFlags);
        if (ocamlBuckConfig.getWarningsFlags().isPresent() || args.warningsFlags.isPresent()) {
            flags.add("-w");
            flags.add(ocamlBuckConfig.getWarningsFlags().orElse("") + args.warningsFlags.orElse(""));
        }
        ImmutableList<String> linkerflags = args.linkerFlags;
        return OcamlRuleBuilder.createBuildRule(ocamlBuckConfig, params, resolver, srcs, /*isLibrary*/ true,
                args.bytecodeOnly.orElse(false), flags.build(), linkerflags);
    }

    @Override
    public Iterable<BuildTarget> findDepsForTargetFromConstructorArgs(BuildTarget buildTarget,
            CellPathResolver cellRoots, OcamlLibraryDescription.Arg constructorArg) {
        return CxxPlatforms.getParseTimeDeps(ocamlBuckConfig.getCxxPlatform());
    }

    @SuppressFieldNotInitialized
    public static class Arg extends AbstractDescriptionArg {
        public ImmutableList<OcamlSource> srcs = ImmutableList.of();
        public ImmutableSortedSet<BuildTarget> deps = ImmutableSortedSet.of();
        public ImmutableList<String> compilerFlags = ImmutableList.of();
        public ImmutableList<String> linkerFlags = ImmutableList.of();
        public Optional<String> warningsFlags;
        public Optional<Boolean> bytecodeOnly;
    }

}