217 lines
11 KiB
Python
217 lines
11 KiB
Python
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# Copyright 2018 The Bazel Authors. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Attributes."""
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load(
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"//rules:attrs.bzl",
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_attrs = "attrs",
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)
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ATTRS = _attrs.add(
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dict(
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deps = attr.label_list(
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providers = [
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[CcInfo],
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[JavaInfo],
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],
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doc = (
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"The list of other libraries to link against. Permitted library types " +
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"are: `android_library`, `java_library` with `android` constraint and " +
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"`cc_library` wrapping or producing `.so` native libraries for the " +
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"Android target platform."
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),
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),
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enable_data_binding = attr.bool(
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default = False,
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doc = (
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"If true, this rule processes [data binding]" +
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"(https://developer.android.com/topic/libraries/data-binding) " +
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"expressions in layout resources included through the [resource_files]" +
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"(https://docs.bazel.build/versions/main/be/android.html#android_binary.resource_files) " +
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"attribute. Without this setting, data binding expressions produce build " +
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"failures. To build an Android app with data binding, you must also do the following:" +
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"\n\n1. Set this attribute for all Android rules that transitively depend on " +
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"this one. This is because dependers inherit the rule's data binding " +
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"expressions through resource merging. So they also need to build with " +
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"data binding to parse those expressions." +
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"\n\n2. Add a `deps =` entry for the data binding runtime library to all targets " +
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"that set this attribute. The location of this library depends on your depot setup."
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),
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),
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exported_plugins = attr.label_list(
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providers = [
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[JavaPluginInfo],
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],
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cfg = "exec",
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doc = (
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"The list of [java_plugin](https://docs.bazel.build/versions/main/be/java.html#java_plugin)s " +
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"(e.g. annotation processors) to export to libraries that directly depend on this library. " +
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"The specified list of `java_plugin`s will be applied to any library which directly depends on " +
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"this library, just as if that library had explicitly declared these labels in " +
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"[plugins](#android_library-plugins)."
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),
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),
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exports = attr.label_list(
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providers = [
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[CcInfo],
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[JavaInfo],
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],
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doc = (
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"The closure of all rules reached via `exports` attributes are considered " +
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"direct dependencies of any rule that directly depends on the target with " +
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"`exports`. The `exports` are not direct deps of the rule they belong to."
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),
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),
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exports_manifest = _attrs.tristate.create(
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default = _attrs.tristate.no,
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doc = (
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"Whether to export manifest entries to `android_binary` targets that " +
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"depend on this target. `uses-permissions` attributes are never exported."
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),
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),
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idl_import_root = attr.string(
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doc = (
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"Package-relative path to the root of the java package tree containing idl " +
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"sources included in this library. This path will be used as the import root " +
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"when processing idl sources that depend on this library." +
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"\n\n" +
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"When `idl_import_root` is specified, both `idl_parcelables` and `idl_srcs` must " +
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"be at the path specified by the java package of the object they represent " +
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"under `idl_import_root`. When `idl_import_root` is not specified, both " +
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"`idl_parcelables` and `idl_srcs` must be at the path specified by their " +
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"package under a Java root. " +
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"See [examples](#examples)"
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),
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),
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idl_parcelables = attr.label_list(
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allow_files = [".aidl"],
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doc = (
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"List of Android IDL definitions to supply as imports. These files will " +
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"be made available as imports for any `android_library` target that depends " +
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"on this library, directly or via its transitive closure, but will not be " +
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"translated to Java or compiled. Only `.aidl` files that correspond directly " +
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"to `.java` sources in this library should be included (e.g., custom " +
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"implementations of Parcelable), otherwise `idl_srcs` should be used." +
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"\n\n" +
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"These files must be placed appropriately for the aidl compiler to find " +
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"them. See the description of [idl_import_root](#android_library-idl_import_root) " +
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"for information about what this means."
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),
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),
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idl_preprocessed = attr.label_list(
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allow_files = [".aidl"],
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doc = (
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"List of preprocessed Android IDL definitions to supply as imports. These " +
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"files will be made available as imports for any `android_library` target " +
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"that depends on this library, directly or via its transitive closure, but " +
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"will not be translated to Java or compiled. Only preprocessed `.aidl` " +
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"files that correspond directly to `.java` sources in this library should " +
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"be included (e.g., custom implementations of Parcelable), otherwise use " +
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"`idl_srcs` for Android IDL definitions that need to be translated to Java " +
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"interfaces and use `idl_parcelable` for non-preprocessed AIDL files."
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),
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),
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idl_srcs = attr.label_list(
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allow_files = [".aidl"],
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doc = (
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"List of Android IDL definitions to translate to Java interfaces. After " +
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"the Java interfaces are generated, they will be compiled together with " +
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"the contents of `srcs`. These files will be made available as imports " +
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"for any `android_library` target that depends on this library, directly " +
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"or via its transitive closure." +
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"\n\n" +
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"These files must be placed appropriately for the aidl compiler to find " +
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"them. See the description of [idl_import_root](#android_library-idl_import_root) " +
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"for information about what this means."
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),
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),
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idl_uses_aosp_compiler = attr.bool(
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default = False,
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doc = (
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"Use the upstream AOSP compiler to generate Java files out of `idl_srcs`." +
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"The upstream AOSP compiler provides several new language features that the " +
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"Google3-only compiler doesn't provide. For example: structured parcelables, " +
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"unions, enums, nested type declarations, constant expressions, annotations, " +
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"and more. " +
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"See [AIDL Doc](https://source.android.com/docs/core/architecture/aidl/overview) " +
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"for more details. " +
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"Note: the use of the AOSP compiler in google3 is restricted due to performance " +
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"considerations. This should not be broadly used unless these features are " +
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"strictly required."
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),
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),
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idlopts = attr.string_list(
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mandatory = False,
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allow_empty = True,
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default = [],
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doc = (
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"Add these flags to the AIDL compiler command."
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),
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),
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neverlink = attr.bool(
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default = False,
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doc = (
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"Only use this library for compilation and not at runtime. The outputs " +
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"of a rule marked as neverlink will not be used in `.apk` creation. " +
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"Useful if the library will be provided by the runtime environment during execution."
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),
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),
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proguard_specs = attr.label_list(
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allow_files = True,
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doc = (
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"Files to be used as Proguard specification. These will describe the set " +
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"of specifications to be used by Proguard. If specified, they will be " +
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"added to any `android_binary` target depending on this library. The " +
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"files included here must only have idempotent rules, namely -dontnote, " +
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"-dontwarn, assumenosideeffects, and rules that start with -keep. Other " +
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"options can only appear in `android_binary`'s proguard_specs, to " +
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"ensure non-tautological merges."
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),
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),
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srcs = attr.label_list(
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allow_files = [".java", ".srcjar"],
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doc = (
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"The list of `.java` or `.srcjar` files that are processed to create the " +
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"target. `srcs` files of type `.java` are compiled. For *readability's " +
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"sake*, it is not good to put the name of a generated `.java` source " +
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"file into the `srcs`. Instead, put the depended-on rule name in the `srcs`, " +
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"as described below." +
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"\n\n" +
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"`srcs` files of type `.srcjar` are unpacked and compiled. (This is useful " +
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"if you need to generate a set of `.java` files with a genrule or build extension.)"
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),
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),
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# TODO(b/127517031): Remove these entries once fixed.
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_defined_assets = attr.bool(default = False),
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_defined_assets_dir = attr.bool(default = False),
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_defined_idl_import_root = attr.bool(default = False),
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_defined_idl_parcelables = attr.bool(default = False),
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_defined_idl_srcs = attr.bool(default = False),
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_defined_local_resources = attr.bool(default = False),
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_java_toolchain = attr.label(
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default = Label("//tools/jdk:toolchain_android_only"),
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),
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# TODO(str): Remove when fully migrated to android_instrumentation_test
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_android_test_migration = attr.bool(default = False),
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_flags = attr.label(
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default = "//rules/flags",
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),
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_package_name = attr.string(), # for sending the package name to the outputs callback
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),
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_attrs.COMPILATION,
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_attrs.DATA_CONTEXT,
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_attrs.ANDROID_TOOLCHAIN_ATTRS,
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)
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