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// 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.objc;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Maps;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.packages.Info;
import com.google.devtools.build.lib.packages.NativeProvider;
import java.util.HashMap;
import java.util.Map.Entry;
/**
* A provider that holds debug outputs of an Apple binary rule.
*
* <p>This provider has no native interface and is intended to be read in Skylark code.
*
* <p>The only field it has is {@code output_map}, which is a dictionary of: { arch: { output_type:
* Artifact, output_type: Artifact, ... } }
*
* <p>Where {@code arch} is any Apple architecture such as "arm64" or "armv7", {@code output_type}
* can currently be "bitcode_symbols" or "dsym_binary", and the artifact is an instance of the
* {@link Artifact} class.
*
* <p>Example: { "arm64": { "bitcode_symbols": Artifact, "dsym_binary": Artifact } }
*/
@Immutable
public final class AppleDebugOutputsProvider extends Info {
/** Expected types of debug outputs. */
enum OutputType {
/** A Bitcode symbol map, per architecture. */
BITCODE_SYMBOLS,
/** A single-architecture DWARF binary with debug symbols. */
DSYM_BINARY,
/** A single-architecture linkmap. */
LINKMAP;
@Override
public String toString() {
return name().toLowerCase();
}
}
/** Skylark name for the AppleDebugOutputsProvider. */
public static final String SKYLARK_NAME = "AppleDebugOutputs";
/** Skylark constructor and identifier for AppleDebugOutputsProvider. */
public static final NativeProvider<AppleDebugOutputsProvider> SKYLARK_CONSTRUCTOR =
new NativeProvider<AppleDebugOutputsProvider>(
AppleDebugOutputsProvider.class, SKYLARK_NAME) {};
/**
* Creates a new provider instance.
*
* @param map a map of
* <pre>{@code
* {
* arch: { output_type: Artifact, output_type: Artifact, ... },
* }
* }</pre>
* Where:
* <ul>
* <li>arch - {@link String}, any Apple supported architecture (e.g. arm64, x86_64)
* <li>output_type - an instance of {@link OutputType}
* </ul>
*/
private AppleDebugOutputsProvider(ImmutableMap<String, ImmutableMap<String, Artifact>> map) {
super(SKYLARK_CONSTRUCTOR, ImmutableMap.<String, Object>of("outputs_map", map));
}
/** A builder for {@link AppleDebugOutputsProvider}. */
public static class Builder {
private final HashMap<String, HashMap<String, Artifact>> outputsByArch = Maps.newHashMap();
private Builder() {}
public static Builder create() {
return new Builder();
}
/**
* Adds an output to the provider.
*
* @param arch any Apple architecture string, e.g. arm64, armv7.
* @param outputType {@link OutputType} corresponding to the artifact.
* @param artifact an {@link Artifact} that contains debug information.
* @return this builder.
*/
public Builder addOutput(String arch, OutputType outputType, Artifact artifact) {
outputsByArch.computeIfAbsent(arch, k -> new HashMap<String, Artifact>());
outputsByArch.get(arch).put(outputType.toString(), artifact);
return this;
}
public AppleDebugOutputsProvider build() {
ImmutableMap.Builder<String, ImmutableMap<String, Artifact>> builder = ImmutableMap.builder();
for (Entry<String, HashMap<String, Artifact>> e : outputsByArch.entrySet()) {
builder.put(e.getKey(), ImmutableMap.copyOf(e.getValue()));
}
return new AppleDebugOutputsProvider(builder.build());
}
}
}
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