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// Copyright 2016 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.java;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.skylark.SkylarkActionFactory;
import com.google.devtools.build.lib.analysis.skylark.SkylarkRuleContext;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.packages.Provider;
import com.google.devtools.build.lib.skylarkbuildapi.java.JavaCommonApi;
import com.google.devtools.build.lib.syntax.Environment;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.Runtime;
import com.google.devtools.build.lib.syntax.SkylarkList;
import com.google.devtools.build.lib.syntax.SkylarkNestedSet;
import com.google.devtools.build.lib.syntax.Type;
import javax.annotation.Nullable;
/** A module that contains Skylark utilities for Java support. */
public class JavaSkylarkCommon implements JavaCommonApi<Artifact, JavaInfo, SkylarkRuleContext,
ConfiguredTarget, SkylarkActionFactory> {
private final JavaSemantics javaSemantics;
@Override
public JavaInfo create(
@Nullable Object actionsUnchecked,
Object compileTimeJars,
Object runtimeJars,
Boolean useIjar,
@Nullable Object javaToolchainUnchecked,
Object transitiveCompileTimeJars,
Object transitiveRuntimeJars,
Object sourceJars,
Location location,
Environment environment)
throws EvalException {
if (environment.getSemantics().incompatibleDisallowLegacyJavaInfo()) {
throw new EvalException(
location,
"create_provider is deprecated and cannot be used when "
+ "--incompatible_disallow_legacy_javainfo is set. "
+ "Please migrate to the JavaInfo constructor.");
}
return JavaInfoBuildHelper.getInstance()
.create(
actionsUnchecked,
asArtifactNestedSet(compileTimeJars),
asArtifactNestedSet(runtimeJars),
useIjar,
javaToolchainUnchecked,
asArtifactNestedSet(transitiveCompileTimeJars),
asArtifactNestedSet(transitiveRuntimeJars),
asArtifactNestedSet(sourceJars),
location);
}
public JavaSkylarkCommon(JavaSemantics javaSemantics) {
this.javaSemantics = javaSemantics;
}
@Override
public Provider getJavaProvider() {
return JavaInfo.PROVIDER;
}
@Override
public JavaInfo createJavaCompileAction(
SkylarkRuleContext skylarkRuleContext,
SkylarkList<Artifact> sourceJars,
SkylarkList<Artifact> sourceFiles,
Artifact outputJar,
SkylarkList<String> javacOpts,
SkylarkList<JavaInfo> deps,
SkylarkList<JavaInfo> exports,
SkylarkList<JavaInfo> plugins,
SkylarkList<JavaInfo> exportedPlugins,
String strictDepsMode,
ConfiguredTarget javaToolchain,
ConfiguredTarget hostJavabase,
SkylarkList<Artifact> sourcepathEntries,
SkylarkList<Artifact> resources,
Boolean neverlink) throws EvalException, InterruptedException {
return JavaInfoBuildHelper.getInstance()
.createJavaCompileAction(
skylarkRuleContext,
sourceJars,
sourceFiles,
outputJar,
javacOpts,
deps,
exports,
plugins,
exportedPlugins,
strictDepsMode,
javaToolchain,
hostJavabase,
sourcepathEntries,
resources,
neverlink,
javaSemantics);
}
@Override
public Artifact runIjar(
SkylarkActionFactory actions,
Artifact jar,
Object targetLabel,
ConfiguredTarget javaToolchain)
throws EvalException {
return JavaInfoBuildHelper.getInstance()
.buildIjar(
actions, jar, targetLabel != Runtime.NONE ? (Label) targetLabel : null, javaToolchain);
}
@Override
public Artifact stampJar(
SkylarkActionFactory actions, Artifact jar, Label targetLabel, ConfiguredTarget javaToolchain)
throws EvalException {
return JavaInfoBuildHelper.getInstance().stampJar(actions, jar, targetLabel, javaToolchain);
}
@Override
public Artifact packSources(
SkylarkActionFactory actions,
Artifact outputJar,
SkylarkList<Artifact> sourceFiles,
SkylarkList<Artifact> sourceJars,
ConfiguredTarget javaToolchain,
ConfiguredTarget hostJavabase)
throws EvalException {
return JavaInfoBuildHelper.getInstance()
.packSourceFiles(actions, outputJar, sourceFiles, sourceJars, javaToolchain, hostJavabase);
}
@Override
// TODO(b/78512644): migrate callers to passing explicit javacopts or using custom toolchains, and
// delete
public ImmutableList<String> getDefaultJavacOpts(
SkylarkRuleContext skylarkRuleContext, String javaToolchainAttr) throws EvalException {
RuleContext ruleContext = skylarkRuleContext.getRuleContext();
ConfiguredTarget javaToolchainConfigTarget =
(ConfiguredTarget) skylarkRuleContext.getAttr().getValue(javaToolchainAttr);
JavaToolchainProvider toolchain =
JavaInfoBuildHelper.getInstance().getJavaToolchainProvider(javaToolchainConfigTarget);
ImmutableList<String> javacOptsFromAttr;
if (ruleContext.getRule().isAttrDefined("javacopts", Type.STRING_LIST)) {
javacOptsFromAttr = ruleContext.getExpander().withDataLocations().tokenized("javacopts");
} else {
// This can also be called from Skylark rules that may or may not have an appropriate
// javacopts attribute.
javacOptsFromAttr = ImmutableList.of();
}
return ImmutableList.copyOf(Iterables.concat(
toolchain.getJavacOptions(),
javacOptsFromAttr));
}
@Override
public JavaInfo mergeJavaProviders(SkylarkList<JavaInfo> providers) {
return JavaInfo.merge(providers);
}
// TODO(b/65113771): Remove this method because it's incorrect.
@Override
public JavaInfo makeNonStrict(JavaInfo javaInfo) {
return JavaInfo.Builder.copyOf(javaInfo)
// Overwrites the old provider.
.addProvider(
JavaCompilationArgsProvider.class,
JavaCompilationArgsProvider.makeNonStrict(
javaInfo.getProvider(JavaCompilationArgsProvider.class)))
.build();
}
@Override
public Provider getJavaRuntimeProvider() {
return JavaRuntimeInfo.PROVIDER;
}
/**
* Takes an Object that is either a SkylarkNestedSet or a SkylarkList of Artifacts and returns it
* as a NestedSet.
*/
private NestedSet<Artifact> asArtifactNestedSet(Object o) throws EvalException {
return o instanceof SkylarkNestedSet
? ((SkylarkNestedSet) o).getSet(Artifact.class)
: NestedSetBuilder.<Artifact>naiveLinkOrder()
.addAll(((SkylarkList<?>) o).getContents(Artifact.class, /*description=*/ null))
.build();
}
}
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