Merge pull request #230 from hlopko:migrate_cc_toolchains_platforms

PiperOrigin-RevId: 248344422

Author: swiple-rules-gardener

swift/internal/swift_toolchain.bzl

@@ -176,7 +176,7 @@ def _run_swift_action(toolchain_tools, swift_wrapper, actions, **kwargs):
 def _swift_toolchain_impl(ctx):
     toolchain_root = ctx.attr.root
     cc_toolchain = find_cpp_toolchain(ctx)
-    cc_toolchain_files = ctx.attr._cc_toolchain.files
+    cc_toolchain_files = cc_toolchain.all_files
 
     linker_opts_producer = partial.make(
         _default_linker_opts,
@@ -274,5 +274,6 @@ The C++ toolchain from which other tools needed by the Swift toolchain (such as
     }),
     doc = "Represents a Swift compiler toolchain.",
     fragments = ["swift"],
+    toolchains = ["@bazel_tools//tools/cpp:toolchain_type"],
     implementation = _swift_toolchain_impl,
 )

swift/internal/xcode_swift_toolchain.bzl

@@ -506,7 +506,7 @@ def _xcode_swift_toolchain_impl(ctx):
     )
 
     cc_toolchain = find_cpp_toolchain(ctx)
-    cc_toolchain_files = ctx.attr._cc_toolchain.files
+    cc_toolchain_files = cc_toolchain.all_files
 
     # Compute the default requested features and conditional ones based on Xcode version.
     requested_features = features_for_build_modes(ctx, objc_fragment = ctx.fragments.objc)
@@ -587,5 +587,6 @@ The C++ toolchain from which linking flags and other tools needed by the Swift t
         "objc",
         "swift",
     ],
+    toolchains = ["@bazel_tools//tools/cpp:toolchain_type"],
     implementation = _xcode_swift_toolchain_impl,
 )