Add //rust/private/BUILD (therefore create a package there)

bindgen/bindgen.bzl

@@ -14,6 +14,7 @@
 
 # buildifier: disable=module-docstring
 load("//rust:rust.bzl", "rust_library")
+load("//rust/private:utils.bzl", "find_toolchain", "get_libs_for_static_executable")
 
 # buildifier: disable=bzl-visibility
 load("//rust/private:utils.bzl", "find_toolchain", "get_libs_for_static_executable")

cargo/cargo_build_script.bzl

@@ -2,6 +2,9 @@
 load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "C_COMPILE_ACTION_NAME")
 load("@bazel_tools//tools/cpp:toolchain_utils.bzl", "find_cpp_toolchain")
 load("//rust:rust.bzl", "rust_binary")
+load("//rust/private:rust.bzl", "name_to_crate_name")
+load("//rust/private:rustc.bzl", "BuildInfo", "DepInfo", "get_cc_toolchain", "get_compilation_mode_opts", "get_linker_and_args")
+load("//rust/private:utils.bzl", "expand_locations", "find_toolchain")
 
 # buildifier: disable=bzl-visibility
 load("//rust/private:rust.bzl", "name_to_crate_name")

rust/BUILD

@@ -15,7 +15,6 @@ toolchain_type(
 
 bzl_library(
     name = "rules",
-    srcs = glob(["**/*.bzl"]),
     deps = [
         "//rust/platform:rules",
         "//rust/private:rules",

rust/private/rustdoc.bzl

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+load("//rust:rust_common.bzl", "CrateInfo")
+
 # buildifier: disable=module-docstring
 load("//rust/private:common.bzl", "rust_common")
 load("//rust/private:rustc.bzl", "DepInfo", "add_crate_link_flags", "add_edition_flags")

rust/private/rustdoc_test.bzl

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+load("//rust:rust_common.bzl", "CrateInfo")
+
 # buildifier: disable=module-docstring
 load("//rust/private:common.bzl", "rust_common")
 load("//rust/private:rustc.bzl", "DepInfo")

rust/rust_common.bzl

@@ -0,0 +1,32 @@
+# Copyright 2015 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.
+
+"""Module with Rust definitions required to write custom Rust rules."""
+
+CrateInfo = provider(
+    doc = "A provider containing general Crate information.",
+    fields = {
+        "aliases": "Dict[Label, String]: Renamed and aliased crates",
+        "deps": "List[Provider]: This crate's (rust or cc) dependencies' providers.",
+        "edition": "str: The edition of this crate.",
+        "is_test": "bool: If the crate is being compiled in a test context",
+        "name": "str: The name of this crate.",
+        "output": "File: The output File that will be produced, depends on crate type.",
+        "proc_macro_deps": "List[CrateInfo]: This crate's rust proc_macro dependencies' providers.",
+        "root": "File: The source File entrypoint to this crate, eg. lib.rs",
+        "rustc_env": "Dict[String, String]: Additional `\"key\": \"value\"` environment variables to set for rustc.",
+        "srcs": "List[File]: All source Files that are part of the crate.",
+        "type": "str: The type of this crate. eg. lib or bin",
+    },
+)