Rust: expand attribute macros

rust/codegen/BUILD.bazel

@@ -7,6 +7,7 @@ _args = [
     "//rust/ast-generator:Cargo.toml",
     "//misc/codegen",
     "//rust:codegen-conf",
+    "@rules_rust//tools/rustfmt:upstream_rustfmt",
 ]
 
 sh_binary(

rust/codegen/codegen.sh

@@ -9,7 +9,9 @@ grammar_file="$(rlocation "$2")"
 ast_generator_manifest="$(rlocation "$3")"
 codegen="$(rlocation "$4")"
 codegen_conf="$(rlocation "$5")"
-shift 5
+rustfmt="$(rlocation "$6")"
+shift 6
 
 CARGO_MANIFEST_DIR="$(dirname "$ast_generator_manifest")" "$ast_generator" "$grammar_file"
+"$rustfmt" "$(dirname "$ast_generator_manifest")/../extractor/src/translate/generated.rs"
 "$codegen" --configuration-file="$codegen_conf" "$@"