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mercury/compiler/mercury_compile_main.m
Zoltan Somogyi a14544b7e7 Rationalize the code expanding @file cmd line args. 
compiler/mercury_compile_args.m:
    Instead of writing out any error messages (and setting the exit status)
    in different ways in different circumstances, return all error messages
    to our caller, as error_specs, and the option_table needed to print
    those error_specs out.

    Simplify the code that actually does the expansion of @file arguments,
    both by invoking higher level primitives than were available when
    the original code was written, and by avoiding repeatedly putting
    arguments info ok/1 wrappers and taking them out again.

    Change the argument list of setup_all_args to delete the ErrorStream
    argument and pass only ProgressStream, because its only caller always
    passes the *same* stream as both arguments.

compiler/mercury_compile_main.m:
    Print the error messages that mercury_compile_args.m now returns.
    Standardize on printing "mmc:" before those messages to identify
    the program reporting those errors. (The old code could print any
    one of "mercury_compile:", "mmc:", the name of the executable,
    or nothing.)

compiler/file_util.m:
    Add two utility functions for the new code in mercury_compile_args.m.

compiler/handle_options.m:
    Add an XXX.

tests/invalid/invalid_mllibs.err_exp:
tests/invalid_make_int/bad_color.int_err_exp:
tests/invalid_options_file/inf_incl_direct.err_exp:
tests/invalid_options_file/inf_incl_indirect.err_exp:
tests/invalid_options_file/no_assign.err_exp:
tests/invalid_options_file/no_var.err_exp:
tests/invalid_options_file/nonexistent_file.err_exp:
tests/invalid_options_file/undefined_var.err_exp:
tests/invalid_options_file/unterminated_string.err_exp:
tests/invalid_options_file/unterminated_var.err_exp:
    Consistently expect the "mmc:" prefix before the error messages
    now printed by mercury_compile_main.m.
2026-04-03 07:06:46 +11:00

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%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
% Copyright (C) 1994-2012 The University of Melbourne.
% Copyright (C) 2017-2026 The Mercury Team.
% This file may only be copied under the terms of the GNU General
% Public License - see the file COPYING in the Mercury distribution.
%---------------------------------------------------------------------------%
%
% File: mercury_compile_main.m.
% Main authors: fjh, zs.
%
% This is the top-level of the Mercury compiler.
%
%---------------------------------------------------------------------------%
:- module top_level.mercury_compile_main.
:- interface.
:- import_module libs.
:- import_module libs.globals.
:- import_module io.
:- import_module list.
% This is the main entry point for the Mercury compiler.
% It is called from mercury_compile.main.
%
:- pred real_main(io::di, io::uo) is det.
% main_for_make(ProgressStream, ErrorStream, Globals, Args, !IO)
% is called from make.module_target.call_mercury_compile_main.
%
:- pred main_for_make(io.text_output_stream::in, io.text_output_stream::in,
globals::in, list(string)::in, io::di, io::uo) is det.
%---------------------------------------------------------------------------%
%---------------------------------------------------------------------------%
:- implementation.
:- import_module backend_libs.
:- import_module backend_libs.compile_target_code.
:- import_module backend_libs.link_target_code.
:- import_module check_hlds.
:- import_module check_hlds.switch_detection.
:- import_module hlds.
:- import_module hlds.instmap.
:- import_module libs.check_libgrades.
:- import_module libs.file_util.
:- import_module libs.maybe_util.
:- import_module libs.op_mode.
:- import_module libs.options.
:- import_module libs.print_help.
:- import_module libs.timestamp.
:- import_module make.
:- import_module make.build.
:- import_module make.options_file.
:- import_module make.prereqs_cache.
:- import_module make.top_level.
:- import_module mdbcomp.
:- import_module mdbcomp.shared_utilities.
:- import_module mdbcomp.sym_name.
:- import_module parse_tree.
:- import_module parse_tree.comp_unit_interface.
:- import_module parse_tree.deps_map.
:- import_module parse_tree.error_spec.
:- import_module parse_tree.error_util.
:- import_module parse_tree.file_names.
:- import_module parse_tree.make_module_file_names.
:- import_module parse_tree.module_baggage.
:- import_module parse_tree.module_cmds.
:- import_module parse_tree.parse_error.
:- import_module parse_tree.parse_tree_out.
:- import_module parse_tree.prog_data.
:- import_module parse_tree.prog_item.
:- import_module parse_tree.prog_parse_tree.
:- import_module parse_tree.read_modules.
:- import_module parse_tree.source_file_map.
:- import_module parse_tree.write_deps_file.
:- import_module parse_tree.write_error_spec.
:- import_module parse_tree.write_module_interface_files.
:- import_module recompilation.
:- import_module recompilation.check.
:- import_module top_level.mercury_compile_args.
:- import_module top_level.mercury_compile_augment.
:- import_module assoc_list.
:- import_module benchmarking.
:- import_module bool.
:- import_module cord.
:- import_module dir.
:- import_module gc.
:- import_module getopt.
:- import_module io.environment.
:- import_module library.
:- import_module map.
:- import_module maybe.
:- import_module one_or_more.
:- import_module pair.
:- import_module require.
:- import_module set.
:- import_module solutions.
:- import_module string.
%---------------------------------------------------------------------------%
real_main(!IO) :-
gc_init(!IO),
% All messages go to stderr.
io.stderr_stream(StdErr, !IO),
ProgressStream = StdErr,
ErrorStream = StdErr,
% XXX STREAM
io.set_output_stream(StdErr, _, !IO),
unlimit_stack(!IO),
io.command_line_arguments(CmdLineArgs, !IO),
setup_all_args(ProgressStream, CmdLineArgs, ArgResult, !IO),
(
ArgResult = apr_success(Globals, ArgPack),
main_after_setup(ProgressStream, ErrorStream, Globals, ArgPack, !IO),
trace [compile_time(flag("file_name_translations")), io(!TIO)] (
write_translations_record_if_any(Globals, !TIO)
)
;
ArgResult = apr_failure(OptionTable, OoMArgSpecs),
ArgSpecs = one_or_more_to_list(OoMArgSpecs),
io.write_string(ProgressStream, "mmc:\n", !IO),
write_error_specs_opt_table(ProgressStream, OptionTable,
ArgSpecs, !IO),
% In most cases, ArgSpecs should contain errors, so the above
% should have set the exit status to 1. However, in cases such as
% tests/invalid_options_file/undefined_var.m, it contains
% only warnings.
%
% XXX In such cases, should we get our caller to return apr_success?
% And if so, should we do so only with --no-halt-at-warn, or
% with --halt-at-warn as well?
io.set_exit_status(1, !IO)
),
record_make_prereqs_cache_stats(!IO),
record_module_ext_cache_stats(!IO),
record_instmap_delta_restrict_stats(!IO),
record_switch_search_depth_results(!IO),
close_any_specific_compiler_streams(!IO).
%---------------------------------------------------------------------------%
main_for_make(ProgressStream, ErrorStream, Globals, Args, !IO) :-
io.environment.get_environment_var_map(EnvVarMap, !IO),
EnvOptFileVariables = env_optfile_variables_init(EnvVarMap),
get_args_representing_env_vars(EnvVarArgs, !IO),
OptionArgs = [],
ArgPack =
compiler_arg_pack(EnvOptFileVariables, EnvVarArgs, OptionArgs, Args),
main_after_setup(ProgressStream, ErrorStream, Globals, ArgPack, !IO).
%---------------------------------------------------------------------------%
:- pred main_after_setup(io.text_output_stream::in, io.text_output_stream::in,
globals::in, compiler_arg_pack::in, io::di, io::uo) is det.
main_after_setup(ProgressStream, ErrorStream, Globals, ArgPack, !IO) :-
globals.lookup_bool_option(Globals, version, Version),
globals.lookup_bool_option(Globals, help, Help),
globals.lookup_bool_option(Globals, help_priv, HelpPriv),
globals.lookup_bool_option(Globals, help_texinfo, HelpTexInfo),
% NOTE: --help takes precedence over any other modes of operation as we do
% not wish to place unnecessary obstacles before users who want help.
% --version takes precedence over the remaining modes of operation since
% this behaviour is common in other compilers and command line tools and
% will be in line with the expectations of at least some users.
% XXX Should we use ErrorStream (which is stderr) instead of StdOutStream?
( if Help = yes then
io.stdout_stream(StdOutStream, !IO),
long_usage(StdOutStream, print_public_help, !IO)
else if HelpPriv = yes then
io.stdout_stream(StdOutStream, !IO),
long_usage(StdOutStream, print_public_and_private_help, !IO)
else if HelpTexInfo = yes then
io.stdout_stream(StdOutStream, !IO),
document_options_for_users_guide(StdOutStream, !IO)
else if Version = yes then
io.stdout_stream(StdOutStream, !IO),
LibraryVersion = library.mercury_version,
PackageVersion = library.package_version,
io.format(StdOutStream, "Mercury Compiler, version %s",
[s(LibraryVersion)], !IO),
( if PackageVersion = "" then
io.nl(StdOutStream, !IO)
else
io.format(StdOutStream, " (%s)\n", [s(PackageVersion)], !IO)
),
write_copyright_notice(StdOutStream, !IO)
else
globals.get_op_mode(Globals, OpMode),
HaveParseTreeMaps0 = init_have_parse_tree_maps,
Specs0 = [],
do_op_mode(ProgressStream, ErrorStream, Globals, OpMode, ArgPack,
HaveParseTreeMaps0, _HaveParseTreeMaps, Specs0, Specs, !IO),
write_error_specs(ErrorStream, Globals, Specs, !IO)
).
%---------------------------------------------------------------------------%
:- pred do_op_mode(io.text_output_stream::in, io.text_output_stream::in,
globals::in, op_mode::in, compiler_arg_pack::in,
have_parse_tree_maps::in, have_parse_tree_maps::out,
list(error_spec)::in, list(error_spec)::out, io::di, io::uo) is det.
do_op_mode(ProgressStream, ErrorStream, Globals, OpMode, ArgPack,
!HaveParseTreeMaps, !Specs, !IO) :-
(
OpMode = opm_top_make,
% make_process_compiler_args itself does not pay attention to the
% value of filenames_from_stdin, but we definitely should not let it
% pass filenames_from_stdin=yes to any subcompilations.
globals.set_option(filenames_from_stdin, bool(no),
Globals, MakeGlobals),
make_process_compiler_args(ProgressStream, MakeGlobals, ArgPack, !IO)
;
OpMode = opm_top_generate_source_file_mapping,
ArgPack = compiler_arg_pack(_, _, _, Args),
source_file_map.write_source_file_map(ErrorStream, Globals, Args, !IO)
;
OpMode = opm_top_generate_standalone_interface(StandaloneIntBasename),
do_op_mode_standalone_interface(ProgressStream, ErrorStream, Globals,
StandaloneIntBasename, !IO)
;
OpMode = opm_top_query(OpModeQuery),
do_op_mode_query(ErrorStream, Globals, OpModeQuery, !IO)
;
OpMode = opm_top_args(OpModeArgs, InvokedByMmcMake),
globals.lookup_bool_option(Globals, filenames_from_stdin,
FileNamesFromStdin),
ArgPack = compiler_arg_pack(_, _, _, Args),
( if
Args = [],
FileNamesFromStdin = no
then
io.stderr_stream(StdErr, !IO),
short_usage(StdErr, !IO)
else
do_op_mode_args(ProgressStream, ErrorStream, Globals, OpModeArgs,
InvokedByMmcMake, FileNamesFromStdin, ArgPack,
!HaveParseTreeMaps, !Specs, !IO)
)
).
:- pred do_op_mode_standalone_interface(io.text_output_stream::in,
io.text_output_stream::in, globals::in, string::in,
io::di, io::uo) is det.
do_op_mode_standalone_interface(ProgressStream, ErrorStream, Globals,
StandaloneIntBasename, !IO) :-
globals.get_target(Globals, Target),
(
( Target = target_csharp
; Target = target_java
),
io.progname_base("mercury_compile", ProgName, !IO),
Pieces = [fixed(ProgName), suffix(":"), nl,
words("Error:"), quote("--generate-standalone-interface"),
words("is not required for target language"),
words(compilation_target_string(Target)), suffix("."), nl],
Spec = no_ctxt_spec($pred, severity_error, phase_options,
Pieces),
write_error_spec(ErrorStream, Globals, Spec, !IO)
;
Target = target_c,
make_standalone_interface(Globals, ProgressStream,
StandaloneIntBasename, !IO)
).
%---------------------------------------------------------------------------%
:- pred do_op_mode_query(io.text_output_stream::in, globals::in,
op_mode_query::in, io::di, io::uo) is det.
do_op_mode_query(ErrorStream, Globals, OpModeQuery, !IO) :-
io.stdout_stream(StdOutStream, !IO),
(
OpModeQuery = opmq_output_cc,
globals.lookup_string_option(Globals, cc, CC),
io.print_line(StdOutStream, CC, !IO)
;
OpModeQuery = opmq_output_c_compiler_type,
globals.lookup_string_option(Globals, c_compiler_type, CC_Type),
io.print_line(StdOutStream, CC_Type, !IO)
;
OpModeQuery = opmq_output_cflags,
get_c_compiler_flags(Globals, CFlags),
io.print_line(StdOutStream, CFlags, !IO)
;
OpModeQuery = opmq_output_c_include_directory_flags,
get_c_include_dir_flags(Globals, CInclFlags),
io.print_line(StdOutStream, CInclFlags, !IO)
;
OpModeQuery = opmq_output_csharp_compiler,
globals.lookup_string_option(Globals, csharp_compiler, CSC),
io.print_line(StdOutStream, CSC, !IO)
;
OpModeQuery = opmq_output_csharp_compiler_type,
globals.lookup_string_option(Globals, csharp_compiler_type, CSC_Type),
io.print_line(StdOutStream, CSC_Type, !IO)
;
OpModeQuery = opmq_output_java_class_dir,
% XXX LEGACY
get_java_dir_path(Globals, ext_cur_ngs_gs_java_class,
ClassDirNames, _ClassDirNamesProposed),
ClassDirName = dir.relative_path_name_from_components(ClassDirNames),
io.print_line(StdOutStream, ClassDirName, !IO)
;
OpModeQuery = opmq_output_grade_defines,
get_c_grade_defines(Globals, GradeDefines),
io.print_line(StdOutStream, GradeDefines, !IO)
;
OpModeQuery = opmq_output_link_command,
globals.lookup_string_option(Globals, link_executable_command,
LinkCommand),
io.print_line(StdOutStream, LinkCommand, !IO)
;
OpModeQuery = opmq_output_shared_lib_link_command,
globals.lookup_string_option(Globals, link_shared_lib_command,
LinkCommand),
io.print_line(StdOutStream, LinkCommand, !IO)
;
OpModeQuery = opmq_output_library_link_flags,
output_library_link_flags_for_c(Globals, StdOutStream, Specs, !IO),
write_error_specs(ErrorStream, Globals, Specs, !IO)
;
OpModeQuery = opmq_output_grade_string,
% When Mmake asks for the grade, it really wants the directory
% component to use. This is consistent with scripts/canonical_grade.
globals.get_grade_dir(Globals, Grade),
io.print_line(StdOutStream, Grade, !IO)
;
OpModeQuery = opmq_output_library_install_grades,
globals.lookup_accumulating_option(Globals, library_install_grades,
LibGrades),
list.foldl(io.print_line(StdOutStream), LibGrades, !IO)
;
OpModeQuery = opmq_output_stdlib_grades,
globals.get_maybe_stdlib_grades(Globals, MaybeStdLibGrades),
(
MaybeStdLibGrades = stdlib_grades_known(StdLibGrades),
set.fold(io.print_line(StdOutStream), StdLibGrades, !IO)
;
MaybeStdLibGrades = stdlib_grades_unknown
% During the construction of Globals, handle_opmode_implications
% should have set detect_stdlib_grades to "yes", which should
% cause handle_libgrades to detect the standard library's grades.
% That predicate would leave this field of the globals containing
% stdlib_grades_unknown only if that process got an error.
% In such cases, it would print a message about the error,
% which leaves us nothing to do here.
)
;
OpModeQuery = opmq_output_stdlib_modules,
GetStdLibModules =
( pred(Line::out) is multi :-
library.stdlib_module_doc_undoc(ModuleName, DocUndoc),
(
DocUndoc = doc,
DocStr = "DOC"
;
DocUndoc = undoc,
DocStr = "UNDOC"
),
Line = DocStr ++ " " ++ ModuleName ++ ".m\n"
),
solutions.solutions(GetStdLibModules, StdLibLines),
list.foldl(io.write_string(StdOutStream), StdLibLines, !IO)
;
OpModeQuery = opmq_output_target_arch,
globals.lookup_string_option(Globals, target_arch, TargetArch),
io.print_line(StdOutStream, TargetArch, !IO)
;
OpModeQuery = opmq_output_optimization_options(MaybeUpTo),
list_optimization_options(StdOutStream, MaybeUpTo, !IO)
).
%---------------------------------------------------------------------------%
%
% Do the modes of operation that process the argument list.
%
:- pred do_op_mode_args(io.text_output_stream::in, io.text_output_stream::in,
globals::in, op_mode_args::in, op_mode_invoked_by_mmc_make::in,
bool::in, compiler_arg_pack::in,
have_parse_tree_maps::in, have_parse_tree_maps::out,
list(error_spec)::in, list(error_spec)::out, io::di, io::uo) is det.
do_op_mode_args(ProgressStream, ErrorStream, Globals, OpModeArgs,
InvokedByMmcMake, FileNamesFromStdin, ArgPack,
!HaveParseTreeMaps, !Specs, !IO) :-
ArgPack = compiler_arg_pack(EnvOptFileVariables, EnvVarArgs,
OptionArgs, Args),
Params = compiler_params(EnvOptFileVariables, EnvVarArgs,
OptionArgs),
maybe_check_libraries_are_installed(Globals, LibgradeCheckSpecs, !IO),
io.stderr_stream(StdErr, !IO),
(
LibgradeCheckSpecs = [],
(
FileNamesFromStdin = yes,
% Mmc --make does not set --filenames-from-stdin.
expect(unify(InvokedByMmcMake, op_mode_not_invoked_by_mmc_make),
$pred, "InvokedByMmcMake != op_mode_not_invoked_by_mmc_make"),
io.stdin_stream(StdIn, !IO),
setup_and_process_compiler_stdin_args(ProgressStream, ErrorStream,
StdIn, Globals, OpModeArgs, InvokedByMmcMake, Params,
cord.empty, ModulesToLinkCord, cord.empty, ExtraObjFilesCord,
!HaveParseTreeMaps, !Specs, !IO)
;
FileNamesFromStdin = no,
(
InvokedByMmcMake = op_mode_not_invoked_by_mmc_make,
setup_and_process_compiler_cmd_line_args(ProgressStream,
ErrorStream, Globals, OpModeArgs, InvokedByMmcMake,
Params, Args, cord.empty, ModulesToLinkCord,
cord.empty, ExtraObjFilesCord, !HaveParseTreeMaps, !IO)
;
InvokedByMmcMake = op_mode_invoked_by_mmc_make,
% `mmc --make' has already set up the options.
do_process_compiler_cmd_line_args(ProgressStream, ErrorStream,
Globals, OpModeArgs, InvokedByMmcMake, OptionArgs, Args,
cord.empty, ModulesToLinkCord,
cord.empty, ExtraObjFilesCord, !HaveParseTreeMaps, !IO)
)
),
% Print all remaining module-specific error_specs,
% as well as the ones generated just above.
write_error_specs(ErrorStream, Globals, !.Specs, !IO),
maybe_print_delayed_error_messages(ErrorStream, Globals, !IO),
io.get_exit_status(ExitStatus, !IO),
( if ExitStatus = 0 then
ModulesToLink = cord.list(ModulesToLinkCord),
ExtraObjFiles = cord.list(ExtraObjFilesCord),
( if
OpModeArgs = opma_augment(opmau_front_and_middle(
opfam_target_object_and_executable)),
ModulesToLink = [FirstModule | _]
then
generate_executable(ProgressStream, ErrorStream, Globals,
InvokedByMmcMake, Params,
FirstModule, ModulesToLink, ExtraObjFiles, !IO)
else
true
)
else
true
)
;
LibgradeCheckSpecs = [_ | _],
% Print all remaining module-specific error_specs.
write_error_specs(ErrorStream, Globals, !.Specs, !IO),
maybe_print_delayed_error_messages(ErrorStream, Globals, !IO),
% Print the error_specs from the library check, which are
% not specific to any module.
write_error_specs(StdErr, Globals, LibgradeCheckSpecs, !IO)
),
globals.lookup_bool_option(Globals, statistics, Statistics),
(
Statistics = yes,
( if benchmarking.full_memory_stats_are_available then
benchmarking.report_full_memory_stats(StdErr, !IO)
else
true
)
;
Statistics = no
).
:- pred generate_executable(io.text_output_stream::in,
io.text_output_stream::in, globals::in, op_mode_invoked_by_mmc_make::in,
compiler_params::in, module_name::in,
list(module_name)::in, list(string)::in, io::di, io::uo) is det.
generate_executable(ProgressStream, ErrorStream, Globals, InvokedByMmcMake,
Params, FirstModule, ModulesToLink, ExtraObjFiles, !IO) :-
globals.get_target(Globals, Target),
(
Target = target_java,
% For Java, at the "link" step we just generate a shell script;
% the actual linking will be done at runtime by the Java interpreter.
create_java_shell_script(ProgressStream, Globals, FirstModule,
Succeeded, !IO)
;
( Target = target_c
; Target = target_csharp
),
% XXX STREAM
% Should we go from non-main-module-specific
% progress and error streams to main-module-specific streams?
(
InvokedByMmcMake = op_mode_invoked_by_mmc_make,
% `mmc --make' has already set up the options.
link_modules_into_executable_or_shared_library_for_c(
ProgressStream, Globals, ModulesToLink, ExtraObjFiles,
Specs, Succeeded, !IO)
;
InvokedByMmcMake = op_mode_not_invoked_by_mmc_make,
get_default_options(Globals, DefaultOptionTable),
globals.get_maybe_stdlib_grades(Globals, MaybeStdLibGrades),
setup_for_build_with_module_options(ProgressStream,
DefaultOptionTable, MaybeStdLibGrades, not_invoked_by_mmc_make,
FirstModule, Params, [], MayBuild, !IO),
(
MayBuild = may_not_build(Specs),
Succeeded = did_not_succeed
;
MayBuild = may_build(_AllOptionArgs, BuildGlobals),
link_modules_into_executable_or_shared_library_for_c(
ProgressStream, BuildGlobals, ModulesToLink, ExtraObjFiles,
Specs, Succeeded, !IO)
)
),
write_error_specs(ErrorStream, Globals, Specs, !IO)
),
maybe_set_exit_status(Succeeded, !IO).
%---------------------------------------------------------------------------%
:- pred setup_and_process_compiler_stdin_args(io.text_output_stream::in,
io.text_output_stream::in, io.text_input_stream::in, globals::in,
op_mode_args::in, op_mode_invoked_by_mmc_make::in, compiler_params::in,
cord(module_name)::in, cord(module_name)::out,
cord(string)::in, cord(string)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
list(error_spec)::in, list(error_spec)::out, io::di, io::uo) is det.
setup_and_process_compiler_stdin_args(ProgressStream, ErrorStream, StdIn,
Globals, OpModeArgs, InvokedByMmcMake, Params,
!Modules, !ExtraObjFiles, !HaveParseTreeMaps, !Specs, !IO) :-
( if cord.is_empty(!.Modules) then
true
else
gc.garbage_collect(!IO)
),
io.read_line_as_string(StdIn, LineResult, !IO),
(
LineResult = ok(Line),
Arg = string.rstrip(Line),
setup_and_process_compiler_arg(ProgressStream, ErrorStream, Globals,
OpModeArgs, InvokedByMmcMake, Params, Arg,
ArgModules, ArgExtraObjFiles, !HaveParseTreeMaps, !IO),
cord.snoc_list(ArgModules, !Modules),
cord.snoc_list(ArgExtraObjFiles, !ExtraObjFiles),
setup_and_process_compiler_stdin_args(ProgressStream, ErrorStream,
StdIn, Globals, OpModeArgs, InvokedByMmcMake, Params,
!Modules, !ExtraObjFiles, !HaveParseTreeMaps, !Specs, !IO)
;
LineResult = eof
;
LineResult = error(Error),
io.error_message(Error, Msg),
Pieces = [words("Error reading module name from standard input:"),
words(Msg), suffix("."), nl],
Spec = no_ctxt_spec($pred, severity_error, phase_read_files, Pieces),
!:Specs = [Spec | !.Specs]
).
%---------------------%
:- pred setup_and_process_compiler_cmd_line_args(io.text_output_stream::in,
io.text_output_stream::in, globals::in,
op_mode_args::in, op_mode_invoked_by_mmc_make::in,
compiler_params::in, list(string)::in,
cord(module_name)::in, cord(module_name)::out,
cord(string)::in, cord(string)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
setup_and_process_compiler_cmd_line_args(_, _, _, _, _, _, [],
!Modules, !ExtraObjFiles, !HaveParseTreeMaps, !IO).
setup_and_process_compiler_cmd_line_args(ProgressStream, ErrorStream,
Globals, OpModeArgs, InvokedByMmcMake, Params, [Arg | Args],
!Modules, !ExtraObjFiles, !HaveParseTreeMaps, !IO) :-
setup_and_process_compiler_arg(ProgressStream, ErrorStream, Globals,
OpModeArgs, InvokedByMmcMake, Params, Arg,
ArgModules, ArgExtraObjFiles, !HaveParseTreeMaps, !IO),
(
Args = []
;
Args = [_ | _],
gc.garbage_collect(!IO)
),
cord.snoc_list(ArgModules, !Modules),
cord.snoc_list(ArgExtraObjFiles, !ExtraObjFiles),
setup_and_process_compiler_cmd_line_args(ProgressStream, ErrorStream,
Globals, OpModeArgs, InvokedByMmcMake, Params, Args,
!Modules, !ExtraObjFiles, !HaveParseTreeMaps, !IO).
:- pred do_process_compiler_cmd_line_args(io.text_output_stream::in,
io.text_output_stream::in, globals::in, op_mode_args::in,
op_mode_invoked_by_mmc_make::in, list(string)::in, list(string)::in,
cord(module_name)::in, cord(module_name)::out,
cord(string)::in, cord(string)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
do_process_compiler_cmd_line_args(_, _, _, _, _, _, [],
!ModulesToLink, !ExtraObjFiles, !HaveParseTreeMaps, !IO).
do_process_compiler_cmd_line_args(ProgressStream, ErrorStream, Globals,
OpModeArgs, InvokedByMmcMake, OptionArgs, [Arg | Args],
!ModulesToLink, !ExtraObjFiles, !HaveParseTreeMaps, !IO) :-
% `mmc --make' has already set up the options.
FileOrModule = string_to_file_or_module(Arg),
do_process_compiler_arg(ProgressStream, ErrorStream, Globals,
OpModeArgs, InvokedByMmcMake, OptionArgs, FileOrModule,
ArgModules, ArgExtraObjFiles, !HaveParseTreeMaps, !IO),
(
Args = []
;
Args = [_ | _],
gc.garbage_collect(!IO)
),
cord.snoc_list(ArgModules, !ModulesToLink),
cord.snoc_list(ArgExtraObjFiles, !ExtraObjFiles),
do_process_compiler_cmd_line_args(ProgressStream, ErrorStream, Globals,
OpModeArgs, InvokedByMmcMake, OptionArgs, Args,
!ModulesToLink, !ExtraObjFiles, !HaveParseTreeMaps, !IO).
%---------------------%
% Figure out whether the compiler argument is a module name or a file name.
% Open the specified file or module, and process it.
% Return the list of modules (including submodules,
% if they were compiled to separate object files)
% that should be linked into the final executable.
%
% The actual work is done by do_process_compiler_arg.
% XXX The job of this predicate is apparently to ensure that
% we go through the machinery of mmc --make, represented here by
% build_with_module_options_args, even if we were NOT invoked with --make.
% This seems strange to me. -zs
%
:- pred setup_and_process_compiler_arg(io.text_output_stream::in,
io.text_output_stream::in, globals::in,
op_mode_args::in, op_mode_invoked_by_mmc_make::in,
compiler_params::in, string::in,
list(module_name)::out, list(string)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
setup_and_process_compiler_arg(ProgressStream, ErrorStream, Globals,
OpModeArgs, InvokedByMmcMake, Params, Arg,
ModulesToLink, ExtraObjFiles, !HaveParseTreeMaps, !IO) :-
get_default_options(Globals, DefaultOptionTable),
FileOrModule = string_to_file_or_module(Arg),
ModuleName = file_or_module_to_module_name(FileOrModule),
globals.get_maybe_stdlib_grades(Globals, MaybeStdLibGrades),
ExtraOptions = [],
setup_for_build_with_module_options(ProgressStream, DefaultOptionTable,
MaybeStdLibGrades, not_invoked_by_mmc_make, ModuleName,
Params, ExtraOptions, MayBuild, !IO),
(
MayBuild = may_not_build(SetupSpecs),
% XXX STREAM
% Should we print SetupSpecs to the module-specific error stream?
write_error_specs(ErrorStream, Globals, SetupSpecs, !IO),
ModulesToLink = [],
ExtraObjFiles = []
;
MayBuild = may_build(_AllOptionArgs, BuildGlobals),
Params = compiler_params(_EnvOptFileVars, _EnvVarArgs, OptionArgs),
do_process_compiler_arg(ProgressStream, ErrorStream, BuildGlobals,
OpModeArgs, InvokedByMmcMake, OptionArgs, FileOrModule,
ModulesToLink, ExtraObjFiles, !HaveParseTreeMaps, !IO)
).
%---------------------%
:- pred do_process_compiler_arg(io.text_output_stream::in,
io.text_output_stream::in, globals::in,
op_mode_args::in, op_mode_invoked_by_mmc_make::in, list(string)::in,
file_or_module::in, list(module_name)::out, list(string)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
do_process_compiler_arg(ProgressStream, ErrorStream, Globals0,
OpModeArgs, InvokedByMmcMake, OptionArgs, FileOrModule,
ModulesToLink, ExtraObjFiles, !HaveParseTreeMaps, !IO) :-
% XXX ITEM_LIST There is an inconsistency between the various OpModeArgs
% that construct a module_and_imports structure in how they do it.
%
% The op modes that generate one or more dependency files call predicates
% in d_file_deps.m, which all end up constructing that structure
% by calling init_module_and_imports. On the other hand, the op modes
% that augment the module call augment_and_process_module, which
% calls grab_imported_modules, which constructs that structure
% using make_module_and_imports. And once they create an initial
% module_and_imports structure, they subject that structure to
% different further processing.
%
% I (zs) think that this is probably the reason why the .d files
% of a program contain one set of contents just after the program's
% dependencies are built (or rebuilt), and a different set of contents
% after we start generated interface files and target code for the
% program's modules.
%
% This may be *acceptable* behavior if the approaches using
% init_module_and_imports and make_module_and_imports both compute
% supersets of all the actual dependencies, even if e.g.
% the approach using make_module_and_imports computes a *bigger*
% superset. However, it is definitely not *good* behavior.
%
% The best fix seems to be to use a single approach, and that
% approach should be the one using make_module_and_imports.
%
% XXX The predicates named in the above comment have been deleted, though
% I (zs) think that the problem it describes probably still remains.
% XXX Another, different problem is that
%
% - some of the predicates called from here update the initial Globals0
% to disable smart recompilation (when they find some situation that
% smart recompilation is not able to handle), but then
%
% - these updated values of Globals get to the end of a scope, and
% control returns to a caller that has access only to the original
% Globals0, effectively undoing the disabling of smart recompilation,
(
OpModeArgs = opma_generate_dependencies(MaybeMakeInts),
generate_and_write_dep_file_gendep(ProgressStream, Globals0,
FileOrModule, DepsMap, DepSpecs, !IO),
( if
MaybeMakeInts = do_make_ints,
contains_errors(Globals0, DepSpecs) = no
then
deps_make_ints(ProgressStream, Globals0, DepsMap,
DepSpecs, Specs, !HaveParseTreeMaps, !IO)
else
Specs = DepSpecs
),
SpecsList = [Specs],
ModulesToLink = [],
ExtraObjFiles = []
;
OpModeArgs = opma_generate_dependency_file,
generate_and_write_d_file_gendep(ProgressStream, Globals0,
FileOrModule, _DepsMap, DepSpecs, !IO),
SpecsList = [DepSpecs],
ModulesToLink = [],
ExtraObjFiles = []
;
OpModeArgs = opma_convert_to_mercury,
read_module_or_file(ProgressStream, Globals0, Globals, FileOrModule,
do_not_return_timestamp, HaveReadSrc, !HaveParseTreeMaps, !IO),
(
HaveReadSrc = have_not_read_module(_FileName, Errors)
;
HaveReadSrc = have_module(_FileName, ParseTreeSrc, Source),
have_parse_tree_source_get_maybe_timestamp_errors(Source,
_MaybeTimestamp, Errors),
( if halt_at_module_error(Globals, Errors) then
true
else
ModuleName = ParseTreeSrc ^ pts_module_name,
module_name_to_cur_dir_file_name(ext_cur_user_ugly,
ModuleName, UglyFileName),
output_parse_tree_src(ProgressStream, Globals, UglyFileName,
ParseTreeSrc, _Succeeded, !IO)
)
),
Specs = get_read_module_specs(Errors),
SpecsList = [Specs],
ModulesToLink = [],
ExtraObjFiles = []
;
OpModeArgs = opma_make_interface(InterfaceFile),
do_process_compiler_arg_make_interface(ProgressStream, Globals0,
InterfaceFile, FileOrModule, SpecsList, !HaveParseTreeMaps, !IO),
ModulesToLink = [],
ExtraObjFiles = []
;
OpModeArgs = opma_augment(OpModeAugment),
find_file_components_to_recompile(ProgressStream, Globals0, Globals,
FileOrModule, WhatToRecompile, !HaveParseTreeMaps, !IO),
( if WhatToRecompile = some_file_components([]) then
% XXX Currently smart recompilation is disabled if mmc is linking
% the executable, because it doesn't know how to check whether
% all the necessary intermediate files are present and up-to-date.
%
% XXX What does the above comment have to do with the code here?
SpecsList = [],
ModulesToLink = [],
ExtraObjFiles = []
else
read_augment_and_process_module(ProgressStream, ErrorStream,
Globals, OpModeAugment, InvokedByMmcMake, OptionArgs,
FileOrModule, WhatToRecompile, ModulesToLink, ExtraObjFiles,
Specs, !HaveParseTreeMaps, !IO),
SpecsList = [Specs]
)
),
list.foldl(write_error_specs(ErrorStream, Globals0), SpecsList, !IO),
maybe_print_delayed_error_messages(ErrorStream, Globals0, !IO).
%---------------------%
:- pred deps_make_ints(io.text_output_stream::in, globals::in, deps_map::in,
list(error_spec)::in, list(error_spec)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
deps_make_ints(ProgressStream, Globals, DepsMap,
!Specs, !HaveParseTreeMaps, !IO) :-
map.values(DepsMap, DepsList),
list.map_foldl(gather_local_burdened_modules,
DepsList, BurdenedModules, [], Ancestors),
% XXX This code should be parallelized.
% We could replace the next call with a loop that, in each iteration,
%
% - calls generate_parse_tree_int3 for a given burdened_module,
% adding that parse_tree_int3 to !HaveParseTreeMaps, and then
% - adds that parse_tree_int3 to a work queue
%
% while independently, each of several workers execute a loop in which
% they take a parse_tree_int3 off the work queue and invoke
% write_parse_tree_int3 on it.
list.map2_foldl2(
generate_and_write_interface_file_int3(ProgressStream, Globals,
do_add_new_to_hptm),
BurdenedModules, _Succeededs3, SpecsList3,
!HaveParseTreeMaps, !IO),
list.condense(SpecsList3, Specs3),
!:Specs = Specs3 ++ !.Specs,
Errors3 = contains_errors(Globals, Specs3),
(
Errors3 = yes
;
Errors3 = no,
list.sort(Ancestors, SortedAncestors),
assoc_list.values(SortedAncestors, AncestorBurdenedModules),
% XXX This code could be parallelized by the same method as proposed
% for .int3 files above, starting with a !HaveParseTreeMaps
% containing the parse trees of all the .int3 files generated above.
%
% There is a complication, but it does not need a change in code.
%
% The complication is that the process of generating a .int0 file
% for mod_a.mod_b.mod_c.m requires access to the parse trees of
% for mod_a.int0 and mod_a.mod_b.int0. In our context, this means that
% we should not invoke generate_parse_tree_int0 for a module
% until we have already generated the parse trees of all its
% ancestors (if any). The reason why this does not need any extra code
% is the call to list.sort above. Ancestors is an assoc_list,
% but each of its keys is unique, so the sort of the assoc_list
% effectively sorts only on the keys. Each key is the list of
% the module qualifiers in front of the base module name, followed
% by the base module name. Since the empty list sorts before
% any nonempty list, any comparison of a list of module name components
% (representing an arbitrary module name) with any initial subsequence
% of those components (representing the arbitrary module's ancestors)
% will put the latter first, thus guaranteeing that we process
% ancestor modules before their descendants.
list.map2_foldl2(
generate_and_write_interface_file_int0(ProgressStream, Globals,
do_add_new_to_hptm),
AncestorBurdenedModules, _Succeededs0, RawSpecsList0,
!HaveParseTreeMaps, !IO),
% The code above created a .int3 file for every module in
% BurdenedModules, but some of those modules may import modules
% that are NOT in BurdenedModules. These modules may be in
% other directories in which we have not yet created .int3 files.
% If this is the case, then mention this fact in a message
% that won't (by itself) prevent the compiler from exiting
% with a successful exit status.
list.condense(RawSpecsList0, RawSpecs0),
handle_not_found_files(RawSpecs0, Specs0, Continue0),
!:Specs = Specs0 ++ !.Specs,
Errors0 = contains_errors(Globals, Specs0),
( if
Errors0 = no,
Continue0 = yes
then
% XXX This code could be parallelized by the same method as
% proposed for .int3 files above, starting with a
% !HaveParseTreeMaps containing the parse trees of all the
% .int3 and .int0 files generated above.
%
% XXX We should teach the implementation of mmc --make
% to use this technique of holding onto the parse trees
% of the files it generates, to allow later actions to get
% access to those parse trees without reading the file
% they were written out to.
%
% XXX At the moment, generate_parse_tree_int12 takes some shortcuts
% when creating type_ctor_checked_defns that would need to be fixed
% before mmc --make reuses the parse trees it returns.
% Those shortcuts are marked by "XXX CLEANUP".
list.map2_foldl2(
generate_and_write_interface_file_int1_int2(ProgressStream,
Globals, do_add_new_to_hptm),
BurdenedModules, _Succeededs12, RawSpecsList12,
!HaveParseTreeMaps, !IO),
list.condense(RawSpecsList12, RawSpecs12),
handle_not_found_files(RawSpecs12, Specs12, _Continue12),
!:Specs = Specs12 ++ !.Specs
else
true
)
).
:- pred gather_local_burdened_modules(deps::in, burdened_module::out,
assoc_list(list(string), burdened_module)::in,
assoc_list(list(string), burdened_module)::out) is det.
gather_local_burdened_modules(Deps, BurdenedModule, !Ancestors) :-
Deps = deps(_HaveProcessed, BurdenedModule),
BurdenedModule = burdened_module(_Baggage, ParseTreeModuleSrc),
IncludeMap = ParseTreeModuleSrc ^ ptms_include_map,
( if map.is_empty(IncludeMap) then
true
else
ModuleName = ParseTreeModuleSrc ^ ptms_module_name,
ModuleNameComponents = sym_name_to_list(ModuleName),
!:Ancestors = [ModuleNameComponents - BurdenedModule | !.Ancestors]
).
:- pred handle_not_found_files(list(error_spec)::in, list(error_spec)::out,
bool::out) is det.
handle_not_found_files(Specs0, Specs, Continue) :-
list.foldl2(acc_not_found_files, Specs0,
[], NotFoundFiles, [], OtherSpecs),
(
NotFoundFiles = [],
Specs = OtherSpecs,
% Continue if OtherSpecs allows it; our caller will test that.
Continue = yes
;
NotFoundFiles = [_ | _],
list.sort_and_remove_dups(NotFoundFiles, SortedNotFoundFiles),
list.split_upto(10, SortedNotFoundFiles, FilesToShow, FilesNotToShow),
(
FilesNotToShow = [],
NotFoundPieces = [invis_order_default_end(999, ""),
words("Could not find the following files:")] ++
indented_list(FilesToShow)
;
FilesNotToShow = [_ | _],
NotFoundPieces = [invis_order_default_end(999, ""),
words("Could not find many files, including these:")] ++
indented_list(FilesToShow)
),
Pieces = NotFoundPieces ++
[words("and thus could not create some interface files."), nl],
Spec = no_ctxt_spec($pred, severity_informational(report_not_written),
phase_read_files, Pieces),
Specs = [Spec | OtherSpecs],
Continue = no
).
:- pred acc_not_found_files(error_spec::in,
list(format_piece)::in, list(format_piece)::out,
list(error_spec)::in, list(error_spec)::out) is det.
acc_not_found_files(Spec, !NotFoundFiles, !OtherSpecs) :-
extract_spec_phase(Spec, Phase),
( if Phase = phase_find_files(FileName) then
!:NotFoundFiles = [fixed(FileName) | !.NotFoundFiles]
else
!:OtherSpecs = [Spec | !.OtherSpecs]
).
%---------------------%
:- pred do_process_compiler_arg_make_interface(io.text_output_stream::in,
globals::in, op_mode_interface_file::in, file_or_module::in,
list(list(error_spec))::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
do_process_compiler_arg_make_interface(ProgressStream, Globals0,
InterfaceFile, FileOrModule, SpecLists, !HaveParseTreeMaps, !IO) :-
(
InterfaceFile = omif_int3,
ReturnTimestamp = do_not_return_timestamp
;
InterfaceFile = omif_int0,
globals.lookup_bool_option(Globals0, generate_item_version_numbers,
GenerateVersionNumbers),
ReturnTimestamp =
version_numbers_return_timestamp(GenerateVersionNumbers)
;
InterfaceFile = omif_int1_int2,
globals.lookup_bool_option(Globals0, generate_item_version_numbers,
GenerateVersionNumbers),
ReturnTimestamp =
version_numbers_return_timestamp(GenerateVersionNumbers)
),
read_module_or_file(ProgressStream, Globals0, Globals, FileOrModule,
ReturnTimestamp, HaveReadSrc, !HaveParseTreeMaps, !IO),
(
HaveReadSrc = have_not_read_module(_FileName, ReadErrors),
ReadSpecs = get_read_module_specs(ReadErrors),
SpecLists = [ReadSpecs]
;
HaveReadSrc = have_module(FileName, ParseTreeSrc, Source),
have_parse_tree_source_get_maybe_timestamp_errors(Source,
MaybeTimestamp, ReadErrors),
ReadSpecs = get_read_module_specs(ReadErrors),
( if halt_at_module_error(Globals, ReadErrors) then
SpecLists = [ReadSpecs]
else
parse_tree_src_to_burdened_module_list(Globals, FileName,
ReadErrors, MaybeTimestamp, ParseTreeSrc,
SplitSpecs, BurdenedModules),
% parse_tree_src_to_burdened_module_list includes in SplitSpecs
% the errors it gets from ReadErrors.
ReadSplitSpecs0 = SplitSpecs,
filter_interface_generation_specs(Globals, ReadSplitSpecs0,
ReadSplitSpecs),
(
InterfaceFile = omif_int0,
IsAncestor =
( pred(BM::in) is semidet :-
BM = burdened_module(_, PTMS),
IncludeMap = PTMS ^ ptms_include_map,
not map.is_empty(IncludeMap)
),
list.filter(IsAncestor,
BurdenedModules, AncestorBurdenedModules),
list.map2_foldl2(
generate_and_write_interface_file_int0(ProgressStream,
Globals0, do_not_add_new_to_hptm),
AncestorBurdenedModules, _Succeededs, WriteSpecsList,
!HaveParseTreeMaps, !IO)
;
InterfaceFile = omif_int1_int2,
list.map2_foldl2(
generate_and_write_interface_file_int1_int2(ProgressStream,
Globals0, do_not_add_new_to_hptm),
BurdenedModules, _Succeededs, WriteSpecsList,
!HaveParseTreeMaps, !IO)
;
InterfaceFile = omif_int3,
list.map2_foldl2(
generate_and_write_interface_file_int3(ProgressStream,
Globals0, do_not_add_new_to_hptm),
BurdenedModules, _Succeededs, WriteSpecsList,
!HaveParseTreeMaps, !IO)
),
SpecLists = [ReadSplitSpecs | WriteSpecsList]
)
).
:- func version_numbers_return_timestamp(bool) = maybe_return_timestamp.
version_numbers_return_timestamp(no) = do_not_return_timestamp.
version_numbers_return_timestamp(yes) = do_return_timestamp.
%---------------------%
:- pred find_file_components_to_recompile(io.text_output_stream::in,
globals::in, globals::out, file_or_module::in,
file_components_to_recompile::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
find_file_components_to_recompile(ProgressStream, Globals0, Globals,
FileOrModule, WhatToRecompile, !HaveParseTreeMaps, !IO) :-
globals.lookup_bool_option(Globals0, smart_recompilation, Smart0),
io_get_disable_smart_recompilation(DisableSmart, !IO),
(
DisableSmart = disable_smart_recompilation,
globals.set_option(smart_recompilation, bool(no),
Globals0, Globals),
Smart = no
;
DisableSmart = do_not_disable_smart_recompilation,
Globals = Globals0,
Smart = Smart0
),
(
Smart = yes,
% Note that `--smart-recompilation' only works with
% `--target-code-only', which is always set when the compiler is
% invoked by mmake. Using smart recompilation without using mmake
% is not a sensible thing to do. handle_options.m will disable smart
% recompilation if `--target-code-only' is not set.
(
FileOrModule = fm_module(ModuleName)
;
FileOrModule = fm_file(FileName),
% XXX This won't work if the module name doesn't match
% the file name -- such modules will always be recompiled.
%
% This problem will be fixed when mmake functionality
% is moved into the compiler. The file_name->module_name
% mapping will be explicitly recorded.
file_name_to_module_name(FileName, ModuleName)
),
what_file_components_should_we_recompile(ProgressStream, Globals,
ModuleName, WhatToRecompile, !HaveParseTreeMaps, !IO)
;
Smart = no,
WhatToRecompile = all_file_components
).
%---------------------------------------------------------------------------%
:- pred read_augment_and_process_module(io.text_output_stream::in,
io.text_output_stream::in, globals::in, op_mode_augment::in,
op_mode_invoked_by_mmc_make::in, list(string)::in,
file_or_module::in, file_components_to_recompile::in,
list(module_name)::out, list(string)::out, list(error_spec)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
read_augment_and_process_module(ProgressStream, ErrorStream, Globals0,
OpModeAugment, InvokedByMmcMake, OptionArgs, FileOrModule,
MaybeWhatToRecompile, ModulesToLink, ExtraObjFiles, Specs,
!HaveParseTreeMaps, !IO) :-
(
( OpModeAugment = opmau_make_plain_opt
; OpModeAugment = opmau_make_trans_opt
; OpModeAugment = opmau_make_analysis_registry
; OpModeAugment = opmau_make_xml_documentation
)
;
( OpModeAugment = opmau_typecheck_only
; OpModeAugment = opmau_front_and_middle(_)
),
globals.lookup_bool_option(Globals0, report_cmd_line_args_in_doterr,
ReportCmdLineArgsDotErr),
io.stderr_stream(StdErrStream, !IO),
maybe_report_cmd_line(StdErrStream, ReportCmdLineArgsDotErr,
OptionArgs, [], !IO)
),
read_module_or_file(ProgressStream, Globals0, Globals, FileOrModule,
do_return_timestamp, HaveReadSrc, !HaveParseTreeMaps, !IO),
(
HaveReadSrc = have_not_read_module(_, Errors),
Specs = get_read_module_specs(Errors),
ModulesToLink = [],
ExtraObjFiles = []
;
HaveReadSrc = have_module(SourceFileName, ParseTreeSrc, Source),
have_parse_tree_source_get_maybe_timestamp_errors(Source,
MaybeTimestamp, ReadModuleErrors),
( if halt_at_module_error(Globals, ReadModuleErrors) then
Specs = get_read_module_specs(ReadModuleErrors),
ModulesToLink = [],
ExtraObjFiles = []
else
% XXX STREAM
% We should test whether to go from non-module-specific
% progress and error streams to module-specific streams.
augment_and_process_source_file(ProgressStream, ErrorStream,
Globals, OpModeAugment, InvokedByMmcMake, SourceFileName,
MaybeTimestamp, ReadModuleErrors, ParseTreeSrc,
MaybeWhatToRecompile, ModulesToLink, ExtraObjFiles,
Specs, !HaveParseTreeMaps, !IO)
)
).
%---------------------%
:- pred maybe_report_cmd_line(io.text_output_stream::in, bool::in,
list(string)::in, list(string)::in, io::di, io::uo) is det.
maybe_report_cmd_line(OutStream, Report, OptionArgs, Args, !IO) :-
(
Report = no
;
Report = yes,
io.format(OutStream, "%% Command line options start\n", [], !IO),
io.format(OutStream, "%% %s\n",
[s(string.join_list("\n% ", OptionArgs ++ Args))], !IO),
io.format(OutStream, "%% Command line options end\n", [], !IO)
).
%---------------------%
:- func string_to_file_or_module(string) = file_or_module.
string_to_file_or_module(String) = FileOrModule :-
( if string.remove_suffix(String, ".m", FileName) then
% If the argument name ends in `.m', then we assume it is a file name.
FileOrModule = fm_file(FileName)
else
% If it doesn't end in `.m', then we assume it is a module name.
% (Is it worth checking that the name doesn't contain directory
% separators, and issuing a warning or error in that case?)
file_name_to_module_name(String, ModuleName),
FileOrModule = fm_module(ModuleName)
).
:- func file_or_module_to_module_name(file_or_module) = module_name.
file_or_module_to_module_name(fm_file(FileName)) = ModuleName :-
% Assume the module name matches the file name.
file_name_to_module_name(FileName, ModuleName).
file_or_module_to_module_name(fm_module(ModuleName)) = ModuleName.
%---------------------------------------------------------------------------%
:- pred read_module_or_file(io.text_output_stream::in,
globals::in, globals::out, file_or_module::in, maybe_return_timestamp::in,
have_module(parse_tree_src)::out,
have_parse_tree_maps::in, have_parse_tree_maps::out,
io::di, io::uo) is det.
read_module_or_file(ProgressStream, Globals0, Globals, FileOrModuleName,
ReturnTimestamp, HaveSrc, !HaveParseTreeMaps, !IO) :-
globals.lookup_bool_option(Globals0, verbose, Verbose),
(
FileOrModuleName = fm_module(ModuleName),
ModuleNameStr = sym_name_to_string(ModuleName),
string.format("%% Parsing file `%s'.m and imported interfaces...\n",
[s(ModuleNameStr)], ParsingMsg)
;
FileOrModuleName = fm_file(FileName0),
string.format("%% Parsing file `%s'.m and imported interfaces...\n",
[s(FileName0)], ParsingMsg),
% This is only the *default* module name, but it is the only one
% we can use until we actually read the file.
file_name_to_module_name(FileName0, ModuleName)
),
maybe_write_string(ProgressStream, Verbose, ParsingMsg, !IO),
( if
% Avoid rereading the module if it was already read
% by recompilation.version.m.
map.search(!.HaveParseTreeMaps ^ hptm_src, ModuleName, HaveSrc0),
HaveSrc0 = have_module(FN, PT, Source0),
Source0 = was_read(MaybeTimestamp0, E),
return_timestamp_if_needed(ReturnTimestamp,
MaybeTimestamp0, MaybeTimestamp),
Source = was_read(MaybeTimestamp, E),
HaveSrc1 = have_module(FN, PT, Source)
then
Globals = Globals0,
HaveSrc = HaveSrc1,
% XXX When we have read the module before, it *could* have had
% problems that should cause smart recompilation to be disabled.
HaveReadModuleMapSrc0 = !.HaveParseTreeMaps ^ hptm_src,
map.delete(ModuleName, HaveReadModuleMapSrc0, HaveReadModuleMapSrc),
!HaveParseTreeMaps ^ hptm_src := HaveReadModuleMapSrc
else
% We don't search `--search-directories' for source files
% because that can result in the generated interface files
% being created in the wrong directory.
(
FileOrModuleName = fm_module(_),
read_module_src(ProgressStream, Globals0, rrm_std,
do_not_search, ModuleName, [],
always_read_module(ReturnTimestamp), HaveReadSrc, !IO)
;
FileOrModuleName = fm_file(FileName),
FileNameDotM = FileName ++ ".m",
read_module_src_from_file(ProgressStream, Globals0,
FileName, FileNameDotM, rrm_file, do_not_search,
always_read_module(ReturnTimestamp), HaveReadSrc, !IO)
),
HaveSrc = coerce(HaveReadSrc),
io_get_disable_smart_recompilation(DisableSmart, !IO),
(
DisableSmart = disable_smart_recompilation,
globals.set_option(smart_recompilation, bool(no),
Globals0, Globals)
;
DisableSmart = do_not_disable_smart_recompilation,
Globals = Globals0
)
),
globals.lookup_bool_option(Globals, detailed_statistics, Stats),
maybe_report_stats(ProgressStream, Stats, !IO).
%---------------------------------------------------------------------------%
:- pred halt_at_module_error(globals::in, read_module_errors::in) is semidet.
halt_at_module_error(Globals, Errors) :-
(
set.is_non_empty(Errors ^ rm_fatal_errors)
;
set.is_non_empty(Errors ^ rm_nonfatal_errors),
globals.lookup_bool_option(Globals, halt_at_syntax_errors, HaltSyntax),
HaltSyntax = yes
).
%---------------------------------------------------------------------------%
:- pred gc_init(io::di, io::uo) is det.
% This version is only used if there is no matching foreign_proc version.
gc_init(!IO).
:- pragma foreign_proc("C",
gc_init(_IO0::di, _IO::uo),
[will_not_call_mercury, promise_pure, tabled_for_io],
"
#ifdef MR_BOEHM_GC
// Explicitly force the initial heap size to be at least 4 Mb.
//
// This works around a bug in the Boehm collector (for versions up
// to at least 6.2) where the collector would sometimes abort with
// the message `unexpected mark stack overflow' (e.g. in grade hlc.gc
// on dec-alpha-osf3.2).
//
// Doing this should also improve performance slightly by avoiding
// frequent garbage collection during start-up.
GC_expand_hp(4 * 1024 * 1024);
#endif
").
%---------------------------------------------------------------------------%
:- end_module top_level.mercury_compile_main.
%---------------------------------------------------------------------------%
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