com.facebook.buck.cxx.toolchain.ClangWindowsCompiler.java Source code

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Here is the source code for com.facebook.buck.cxx.toolchain.ClangWindowsCompiler.java

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/*
 * Copyright 2015-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.cxx.toolchain;

import com.facebook.buck.core.toolchain.tool.Tool;
import com.google.common.collect.ImmutableList;
import java.nio.file.Path;

/**
 * Compiler implementation for the Clang for Windows toolchain.
 *
 * <p>This uses clang.exe directly, not simply clang-cl which is a CL-compatible front end for
 * clang. This implementation exists basically only because of argfile differences. See comments on
 * `isArgFileSupported` for details.
 */
public class ClangWindowsCompiler extends ClangCompiler {

    public ClangWindowsCompiler(Tool tool, boolean useDependencyTree) {
        super(tool, useDependencyTree, false);
    }

    @Override
    public ImmutableList<String> getFlagsForReproducibleBuild(String altCompilationDir, Path currentCellPath) {
        ImmutableList<String> flags = super.getFlagsForReproducibleBuild(altCompilationDir, currentCellPath);
        ImmutableList.Builder<String> builder = ImmutableList.builder();
        flags = builder.addAll(flags).add("-mno-incremental-linker-compatible").build();
        return flags;
    }

    @Override
    public boolean isArgFileSupported() {
        // Requires --rsp-quoting=windows to be passed to clang.exe before the argfile to
        // work correctly on Windows, but it is not necessary when driving clang on Unix.
        return false;
    }
}