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// Copyright 2018 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.skylarkbuildapi.java;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.skylarkbuildapi.FileApi;
import com.google.devtools.build.lib.skylarkbuildapi.ProviderApi;
import com.google.devtools.build.lib.skylarkbuildapi.SkylarkActionFactoryApi;
import com.google.devtools.build.lib.skylarkbuildapi.SkylarkRuleContextApi;
import com.google.devtools.build.lib.skylarkbuildapi.TransitiveInfoCollectionApi;
import com.google.devtools.build.lib.skylarkbuildapi.platform.ToolchainInfoApi;
import com.google.devtools.build.lib.skylarkinterface.Param;
import com.google.devtools.build.lib.skylarkinterface.ParamType;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.syntax.Environment;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.SkylarkList;
import com.google.devtools.build.lib.syntax.SkylarkNestedSet;
import com.google.devtools.build.lib.syntax.StarlarkSemantics;
import javax.annotation.Nullable;
/** Utilities for Java compilation support in Skylark. */
@SkylarkModule(name = "java_common", doc = "Utilities for Java compilation support in Starlark.")
public interface JavaCommonApi<
FileT extends FileApi,
JavaInfoT extends JavaInfoApi<FileT>,
SkylarkRuleContextT extends SkylarkRuleContextApi,
SkylarkActionFactoryT extends SkylarkActionFactoryApi> {
@SkylarkCallable(
name = "create_provider",
doc =
"This API is deprecated. It will be disabled by default in Bazel 0.23. Please use "
+ "<a href ="
+ "'https://docs.bazel.build/versions/master/skylark/lib/JavaInfo.html#JavaInfo'>"
+ "JavaInfo()</a> instead."
+ "Creates a JavaInfo from jars. compile_time/runtime_jars are the outputs of the "
+ "target providing a JavaInfo, while transitive_*_jars represent their dependencies."
+ "<p>Note: compile_time_jars and runtime_jars are not automatically merged into the "
+ "transitive jars (unless the given transitive_*_jars are empty) - if this is the "
+ "desired behaviour the user should merge the jars before creating the provider."
+ "<p>This function also creates actions to generate interface jars by default."
+ "<p>When use_ijar is True, ijar will be run on the given compile_time_jars and the "
+ "resulting interface jars will be stored as compile_jars, "
+ "while the initial jars will be stored as full_compile_jars. "
+ "<p>When use_ijar=False, the given compile_time_jars will be stored as both "
+ "compile_jars and full_compile_jars. No actions are created. "
+ "See JavaInfo#compile_jars and JavaInfo#full_compile_jars for more details."
+ "<p>Currently only "
+ "<a href='https://github.com/bazelbuild/bazel/tree/master/third_party/ijar'>"
+ "ijar</a>"
+ " is supported for generating interface jars. "
+ "Header compilation is not yet supported.",
parameters = {
@Param(
name = "actions",
type = SkylarkActionFactoryApi.class,
noneable = true,
defaultValue = "None",
doc =
"The ctx.actions object, used to register the actions for creating the "
+ "interface jars. Only set if use_ijar=True."),
@Param(
name = "compile_time_jars",
positional = false,
named = true,
allowedTypes = {
@ParamType(type = SkylarkList.class),
@ParamType(type = SkylarkNestedSet.class),
},
generic1 = FileApi.class,
defaultValue = "[]",
doc = "A list or a set of jars that should be used at compilation for a given target."),
@Param(
name = "runtime_jars",
positional = false,
named = true,
allowedTypes = {
@ParamType(type = SkylarkList.class),
@ParamType(type = SkylarkNestedSet.class),
},
generic1 = FileApi.class,
defaultValue = "[]",
doc = "A list or a set of jars that should be used at runtime for a given target."),
@Param(
name = "use_ijar",
positional = false,
named = true,
type = Boolean.class,
defaultValue = "True",
doc =
"If True it will generate interface jars for every jar in compile_time_jars."
+ "The generating interface jars will be stored as compile_jars "
+ "and the initial (full) compile_time_jars will be stored as "
+ "full_compile_jars. If False the given compile_jars will be "
+ "stored as both compile_jars and full_compile_jars."),
@Param(
name = "java_toolchain",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = ToolchainInfoApi.class)
},
noneable = true,
defaultValue = "None",
doc =
"A JavaToolchainInfo to be used for retrieving the ijar "
+ "tool. Only set when use_ijar is True."),
@Param(
name = "transitive_compile_time_jars",
positional = false,
named = true,
allowedTypes = {
@ParamType(type = SkylarkList.class),
@ParamType(type = SkylarkNestedSet.class),
},
generic1 = FileApi.class,
defaultValue = "[]",
doc =
"A list or set of compile time jars collected from the transitive closure of a "
+ "rule."),
@Param(
name = "transitive_runtime_jars",
positional = false,
named = true,
allowedTypes = {
@ParamType(type = SkylarkList.class),
@ParamType(type = SkylarkNestedSet.class),
},
generic1 = FileApi.class,
defaultValue = "[]",
doc = "A list or set of runtime jars collected from the transitive closure of a rule."),
@Param(
name = "source_jars",
positional = false,
named = true,
allowedTypes = {
@ParamType(type = SkylarkList.class),
@ParamType(type = SkylarkNestedSet.class),
},
generic1 = FileApi.class,
defaultValue = "[]",
doc =
"A list or set of output source jars that contain the uncompiled source files "
+ "including the source files generated by annotation processors if the case.")
},
useLocation = true,
useEnvironment = true)
public JavaInfoT 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;
@SkylarkCallable(
name = "provider",
structField = true,
doc =
"Returns the Java declared provider. <br>"
+ "The same value is accessible as <code>JavaInfo</code>. <br>"
+ "Prefer using <code>JavaInfo</code> in new code.")
public ProviderApi getJavaProvider();
@SkylarkCallable(
name = "compile",
doc =
"Compiles Java source files/jars from the implementation of a Starlark rule and returns "
+ "a provider that represents the results of the compilation and can be added to "
+ "the set of providers emitted by this rule.",
parameters = {
@Param(
name = "ctx",
positional = true,
named = false,
type = SkylarkRuleContextApi.class,
doc = "The rule context."),
@Param(
name = "source_jars",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = FileApi.class,
defaultValue = "[]",
doc =
"A list of the jars to be compiled. At least one of source_jars or source_files"
+ " should be specified."),
@Param(
name = "source_files",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = FileApi.class,
defaultValue = "[]",
doc =
"A list of the Java source files to be compiled. At least one of source_jars or "
+ "source_files should be specified."),
@Param(name = "output", positional = false, named = true, type = FileApi.class),
@Param(
name = "output_source_jar",
positional = false,
named = true,
type = FileApi.class,
noneable = true,
defaultValue = "None",
doc = "The output source jar. Optional. Defaults to `{output_jar}-src.jar` if unset."),
@Param(
name = "javac_opts",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = String.class,
defaultValue = "[]",
doc = "A list of the desired javac options. Optional."),
@Param(
name = "deps",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = JavaInfoApi.class,
defaultValue = "[]",
doc = "A list of dependencies. Optional."),
@Param(
name = "exports",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = JavaInfoApi.class,
defaultValue = "[]",
doc = "A list of exports. Optional."),
@Param(
name = "plugins",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = JavaInfoApi.class,
defaultValue = "[]",
doc = "A list of plugins. Optional."),
@Param(
name = "exported_plugins",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = JavaInfoApi.class,
defaultValue = "[]",
doc = "A list of exported plugins. Optional."),
@Param(
name = "strict_deps",
defaultValue = "'ERROR'",
positional = false,
named = true,
type = String.class,
doc =
"A string that specifies how to handle strict deps. Possible values: 'OFF', "
+ "'ERROR', 'WARN' and 'DEFAULT'. For more details see "
+ "https://docs.bazel.build/versions/master/bazel-user-manual.html#"
+ "flag--strict_java_deps. By default 'ERROR'."),
@Param(
name = "java_toolchain",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = ToolchainInfoApi.class)
},
doc = "A JavaToolchainInfo to be used for this compilation. Mandatory."),
@Param(
name = "host_javabase",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = JavaRuntimeInfoApi.class)
},
doc = "A JavaRuntimeInfo to be used for this compilation. Mandatory."),
@Param(
name = "sourcepath",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = FileApi.class,
defaultValue = "[]"),
@Param(
name = "resources",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = FileApi.class,
defaultValue = "[]"),
@Param(
name = "neverlink",
positional = false,
named = true,
type = Boolean.class,
defaultValue = "False")
},
useLocation = true,
useEnvironment = true)
public JavaInfoT createJavaCompileAction(
SkylarkRuleContextT skylarkRuleContext,
SkylarkList<FileT> sourceJars,
SkylarkList<FileT> sourceFiles,
FileT outputJar,
Object outputSourceJar,
SkylarkList<String> javacOpts,
SkylarkList<JavaInfoT> deps,
SkylarkList<JavaInfoT> exports,
SkylarkList<JavaInfoT> plugins,
SkylarkList<JavaInfoT> exportedPlugins,
String strictDepsMode,
Object javaToolchain,
Object hostJavabase,
SkylarkList<FileT> sourcepathEntries,
SkylarkList<FileT> resources,
Boolean neverlink,
Location loc,
Environment environment)
throws EvalException, InterruptedException;
@SkylarkCallable(
name = "run_ijar",
doc =
"Runs ijar on a jar, stripping it of its method bodies. This helps reduce rebuilding "
+ "of dependent jars during any recompiles consisting only of simple changes to "
+ "method implementations. The return value is typically passed to "
+ "<code><a class=\"anchor\" href=\"JavaInfo.html\">"
+ "JavaInfo</a>#compile_jar</code>.",
parameters = {
@Param(
name = "actions",
named = true,
type = SkylarkActionFactoryApi.class,
doc = "ctx.actions"),
@Param(
name = "jar",
positional = false,
named = true,
type = FileApi.class,
doc = "The jar to run ijar on."),
@Param(
name = "target_label",
positional = false,
named = true,
type = Label.class,
noneable = true,
defaultValue = "None",
doc =
"A target label to stamp the jar with. Used for <code>add_dep</code> support. "
+ "Typically, you would pass <code>ctx.label</code> to stamp the jar "
+ "with the current rule's label."),
@Param(
name = "java_toolchain",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = ToolchainInfoApi.class)
},
doc = "A JavaToolchainInfo to used to find the ijar tool."),
},
useSkylarkSemantics = true,
useLocation = true)
public FileApi runIjar(
SkylarkActionFactoryT actions,
FileT jar,
Object targetLabel,
Object javaToolchain,
Location location,
StarlarkSemantics semantics)
throws EvalException;
@SkylarkCallable(
name = "stamp_jar",
doc =
"Stamps a jar with a target label for <code>add_dep</code> support. "
+ "The return value is typically passed to "
+ "<code><a class=\"anchor\" href=\"JavaInfo.html\">"
+ "JavaInfo</a>#compile_jar</code>. "
+ "Prefer to use "
+ "<code><a class=\"anchor\" href=\"java_common.html#run_ijar\">run_ijar</a></code> "
+ "when possible.",
parameters = {
@Param(
name = "actions",
named = true,
type = SkylarkActionFactoryApi.class,
doc = "ctx.actions"),
@Param(
name = "jar",
positional = false,
named = true,
type = FileApi.class,
doc = "The jar to run stamp_jar on."),
@Param(
name = "target_label",
positional = false,
named = true,
type = Label.class,
doc =
"A target label to stamp the jar with. Used for <code>add_dep</code> support. "
+ "Typically, you would pass <code>ctx.label</code> to stamp the jar "
+ "with the current rule's label."),
@Param(
name = "java_toolchain",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = ToolchainInfoApi.class)
},
doc = "A JavaToolchainInfo to used to find the stamp_jar tool."),
},
useSkylarkSemantics = true,
useLocation = true)
public FileApi stampJar(
SkylarkActionFactoryT actions,
FileT jar,
Label targetLabel,
Object javaToolchain,
Location location,
StarlarkSemantics semantics)
throws EvalException;
@SkylarkCallable(
name = "pack_sources",
doc =
"Packs sources and source jars into a single source jar file. "
+ "The return value is typically passed to"
+ "<p><code><a class=\"anchor\" href=\"JavaInfo.html\">"
+ "JavaInfo</a>#source_jar</code></p>.",
parameters = {
@Param(
name = "actions",
named = true,
type = SkylarkActionFactoryApi.class,
doc = "ctx.actions"),
@Param(
name = "output_jar",
positional = false,
named = true,
type = FileApi.class,
doc = "The output jar of the rule. Used to name the resulting source jar."),
@Param(
name = "sources",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = FileApi.class,
defaultValue = "[]",
doc = "A list of Java source files to be packed into the source jar."),
@Param(
name = "source_jars",
positional = false,
named = true,
type = SkylarkList.class,
generic1 = FileApi.class,
defaultValue = "[]",
doc = "A list of source jars to be packed into the source jar."),
@Param(
name = "java_toolchain",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = ToolchainInfoApi.class)
},
doc = "A JavaToolchainInfo to used to find the ijar tool."),
@Param(
name = "host_javabase",
positional = false,
named = true,
type = Object.class,
allowedTypes = {
@ParamType(type = TransitiveInfoCollectionApi.class),
@ParamType(type = JavaRuntimeInfoApi.class)
},
doc = "A JavaRuntimeInfo to be used for packing sources."),
},
allowReturnNones = true,
useSkylarkSemantics = true,
useLocation = true)
public FileApi packSources(
SkylarkActionFactoryT actions,
FileT outputJar,
SkylarkList<FileT> sourceFiles,
SkylarkList<FileT> sourceJars,
Object javaToolchain,
Object hostJavabase,
Location location,
StarlarkSemantics semantics)
throws EvalException;
@SkylarkCallable(
name = "default_javac_opts",
// This function is experimental for now.
documented = false,
parameters = {
@Param(
name = "ctx",
positional = true,
named = false,
type = Object.class,
allowedTypes = {@ParamType(type = SkylarkRuleContextApi.class)},
noneable = true,
defaultValue = "None",
doc = "The rule context."),
@Param(
name = "java_toolchain_attr",
positional = false,
named = true,
type = Object.class,
allowedTypes = {@ParamType(type = String.class)},
noneable = true,
defaultValue = "None"),
@Param(
name = "java_toolchain",
positional = false,
named = true,
type = Object.class,
allowedTypes = {@ParamType(type = ToolchainInfoApi.class)},
noneable = true,
defaultValue = "None",
doc =
"A JavaToolchainInfo to be used for retrieving the ijar "
+ "tool. Only set when use_ijar is True."),
},
useSkylarkSemantics = true,
useLocation = true)
// TODO(b/78512644): migrate callers to passing explicit javacopts or using custom toolchains, and
// delete
public ImmutableList<String> getDefaultJavacOpts(
Object skylarkRuleContext,
Object javaToolchainAttr,
Object javaToolchain,
Location loc,
StarlarkSemantics semantics)
throws EvalException;
@SkylarkCallable(
name = "merge",
doc = "Merges the given providers into a single JavaInfo.",
parameters = {
@Param(
name = "providers",
positional = true,
named = false,
type = SkylarkList.class,
generic1 = JavaInfoApi.class,
doc = "The list of providers to merge."),
})
public JavaInfoT mergeJavaProviders(SkylarkList<JavaInfoT> providers);
@SkylarkCallable(
name = "make_non_strict",
doc =
"Returns a new Java provider whose direct-jars part is the union of both the direct and"
+ " indirect jars of the given Java provider.",
parameters = {
@Param(
name = "java_info",
positional = true,
named = false,
type = JavaInfoApi.class,
doc = "The java info."),
})
public JavaInfoT makeNonStrict(JavaInfoT javaInfo);
@SkylarkCallable(
name = "JavaToolchainInfo",
doc =
"The key used to retrieve the provider that contains information about the Java "
+ "toolchain being used.",
structField = true)
public ProviderApi getJavaToolchainProvider();
@SkylarkCallable(
name = "JavaRuntimeInfo",
doc =
"The key used to retrieve the provider that contains information about the Java "
+ "runtime being used.",
structField = true)
public ProviderApi getJavaRuntimeProvider();
@SkylarkCallable(
name = "is_java_toolchain_resolution_enabled_do_not_use",
documented = false,
parameters = {
@Param(
name = "ctx",
positional = false,
named = true,
type = SkylarkRuleContextApi.class,
doc = "The rule context."),
},
doc = "Returns true if --experimental_use_toolchain_resolution_for_java_rules is enabled.")
boolean isJavaToolchainResolutionEnabled(SkylarkRuleContextT ruleContext) throws EvalException;
}