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91 lines
4.0 KiB
91 lines
4.0 KiB
(*
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* Copyright (c) 2013 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*)
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open! IStd
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open! PVariant
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(** Module for function to retrieve the location (file, line, etc) of instructions *)
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let clang_to_sil_location trans_unit_ctx clang_loc =
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let line = Option.value ~default:(-1) clang_loc.Clang_ast_t.sl_line in
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let col = Option.value ~default:(-1) clang_loc.Clang_ast_t.sl_column in
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let file =
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Option.value ~default:trans_unit_ctx.CFrontend_config.source_file
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clang_loc.Clang_ast_t.sl_file in
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Location.{line; col; file}
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let source_file_in_project source_file =
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let file_in_project = SourceFile.is_under_project_root source_file in
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let rel_source_file = SourceFile.to_string source_file in
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let file_should_be_skipped =
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List.exists
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~f:(fun path -> String.is_prefix ~prefix:path rel_source_file)
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Config.skip_translation_headers in
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file_in_project && not (file_should_be_skipped)
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let should_do_frontend_check trans_unit_ctx (loc_start, _) =
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match loc_start.Clang_ast_t.sl_file with
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| Some source_file ->
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SourceFile.equal source_file trans_unit_ctx.CFrontend_config.source_file ||
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(source_file_in_project source_file && not Config.testing_mode)
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| None -> false
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(** We translate by default the instructions in the current file. In C++ development, we also
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translate the headers that are part of the project. However, in testing mode, we don't want to
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translate the headers because the dot files in the frontend tests should contain nothing else
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than the source file to avoid conflicts between different versions of the libraries. *)
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let should_translate trans_unit_ctx (loc_start, loc_end) decl_trans_context ~translate_when_used =
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let map_file_of pred loc =
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match loc.Clang_ast_t.sl_file with
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| Some f -> pred f
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| None -> false
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in
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(* it's not necessary to compare inodes here because both files come from
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the same context - they are produced by the same invocation of ASTExporter
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which uses same logic to produce both files *)
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let equal_current_source = SourceFile.equal trans_unit_ctx.CFrontend_config.source_file
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in
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let equal_header_of_current_source maybe_header =
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(* SourceFile.of_header will cache calls to filesystem *)
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let source_of_header_opt = SourceFile.of_header maybe_header in
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Option.value_map ~f:equal_current_source ~default:false source_of_header_opt
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in
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let file_in_project = map_file_of source_file_in_project loc_end
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|| map_file_of source_file_in_project loc_start in
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let translate_on_demand = translate_when_used || file_in_project || Config.models_mode in
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let file_in_models = map_file_of SourceFile.is_cpp_model loc_end
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|| map_file_of SourceFile.is_cpp_model loc_start in
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map_file_of equal_current_source loc_end
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|| map_file_of equal_current_source loc_start
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|| file_in_models
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|| (Config.cxx && map_file_of equal_header_of_current_source loc_start)
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|| (Config.cxx && decl_trans_context = `Translation && translate_on_demand
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&& not Config.testing_mode)
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let should_translate_lib trans_unit_ctx source_range decl_trans_context ~translate_when_used =
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not Config.no_translate_libs
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|| should_translate trans_unit_ctx source_range decl_trans_context ~translate_when_used
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let is_file_blacklisted file =
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let paths = Config.skip_clang_analysis_in_path in
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let is_file_blacklisted =
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List.exists
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~f:(fun path -> Str.string_match (Str.regexp ("^.*/" ^ path)) file 0)
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paths in
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is_file_blacklisted
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let get_sil_location_from_range trans_unit_ctx source_range prefer_first =
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let sloc1, sloc2 = source_range in
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let sloc = if not prefer_first then sloc2 else sloc1 in
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clang_to_sil_location trans_unit_ctx sloc
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let get_sil_location stmt_info context =
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let sloc1, _ = stmt_info.Clang_ast_t.si_source_range in
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clang_to_sil_location context.CContext.translation_unit_context sloc1
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