// 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.rules.apple.swift;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.analysis.config.BuildOptions;
import com.google.devtools.build.lib.analysis.config.ConfigurationEnvironment;
import com.google.devtools.build.lib.analysis.config.ConfigurationFragmentFactory;
import com.google.devtools.build.lib.analysis.config.FragmentOptions;
import com.google.devtools.build.lib.analysis.config.InvalidConfigurationException;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
/**
* A configuration containing flags required for Swift tools. This is used primarily by swift_*
* family of rules written in Skylark.
*/
@SkylarkModule(
name = "swift",
doc = "A configuration fragment for Swift tools.",
category = SkylarkModuleCategory.CONFIGURATION_FRAGMENT
)
@Immutable
public class SwiftConfiguration extends BuildConfiguration.Fragment {
private final boolean enableWholeModuleOptimization;
private final ImmutableList<String> copts;
public SwiftConfiguration(SwiftCommandLineOptions options) {
enableWholeModuleOptimization = options.enableWholeModuleOptimization;
copts = ImmutableList.copyOf(options.copts);
}
/** Returns whether to enable Whole Module Optimization. */
@SkylarkCallable(
name = "enable_whole_module_optimization",
doc = "Whether to enable Whole Module Optimization."
)
public boolean enableWholeModuleOptimization() {
return enableWholeModuleOptimization;
}
/** Returns a list of options to use for compiling Swift. */
@SkylarkCallable(name = "copts", doc = "Returns a list of options to use for compiling Swift.")
public ImmutableList<String> getCopts() {
return copts;
}
/** Loads {@link SwiftConfiguration} from build options. */
public static class Loader implements ConfigurationFragmentFactory {
@Override
public SwiftConfiguration create(ConfigurationEnvironment env, BuildOptions buildOptions)
throws InvalidConfigurationException, InterruptedException {
SwiftCommandLineOptions options = buildOptions.get(SwiftCommandLineOptions.class);
return new SwiftConfiguration(options);
}
@Override
public Class<? extends BuildConfiguration.Fragment> creates() {
return SwiftConfiguration.class;
}
@Override
public ImmutableSet<Class<? extends FragmentOptions>> requiredOptions() {
return ImmutableSet.<Class<? extends FragmentOptions>>of(SwiftCommandLineOptions.class);
}
}
}