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%-----------------------------------------------------------------------------%
% Copyright (C) 1998-1999 University of Melbourne.
% This file may only be copied under the terms of the GNU General
% Public License - see the file COPYING in the Mercury distribution.
%-----------------------------------------------------------------------------%
% File: pd_debug.m
% Main author: stayl.
%
% Debugging routines for partial deduction.
%-----------------------------------------------------------------------------%
:- module pd_debug.
:- interface.
:- import_module pd_info, hlds_goal, hlds_pred, prog_data.
:- import_module list, string.
:- pred pd_debug__do_io(pred(io__state, io__state)::pred(di, uo) is det,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
:- pred pd_debug__output_goal(string::in, hlds_goal::in,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
:- pred pd_debug__search_version_result(maybe_version::in,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
:- pred pd_debug__register_version(pred_proc_id::in, version_info::in,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
:- pred pd_debug__write_instmap(pd_info::pd_info_di,
pd_info::pd_info_uo) is det.
:- pred pd_debug__message(string::in, list(string__poly_type)::in,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
:- pred pd_debug__message(prog_context::in, string::in,
list(string__poly_type)::in,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
:- pred pd_debug__write(T::in, pd_info::pd_info_di,
pd_info::pd_info_uo) is det.
:- pred pd_debug__write_pred_proc_id_list(list(pred_proc_id)::in,
pd_info::pd_info_di, pd_info::pd_info_uo) is det.
%-----------------------------------------------------------------------------%
:- implementation.
:- import_module globals, hlds_module, hlds_out, instmap, options.
:- import_module instmap, prog_out, goal_util.
:- import_module bool, io, set, std_util.
pd_debug__do_io(Pred) -->
pd_debug__do_output(DoOutput),
( { DoOutput = yes } ->
pd_info_get_io_state(IO0),
{ call(Pred, IO0, IO1) },
{ io__flush_output(IO1, IO) },
pd_info_set_io_state(IO)
;
[]
).
%-----------------------------------------------------------------------------%
pd_debug__search_version_result(MaybeVersion) -->
pd_info_get_module_info(ModuleInfo),
pd_debug__do_io(pd_debug__search_version_result_2(ModuleInfo,
MaybeVersion)).
:- pred pd_debug__search_version_result_2(module_info::in, maybe_version::in,
io__state::di, io__state::uo) is det.
pd_debug__search_version_result_2(ModuleInfo, MaybeVersion) -->
(
{ MaybeVersion = no_version },
io__write_string("Specialised version not found.\n")
;
{ MaybeVersion = version(exact, _, _, _, _) },
io__write_string("Exact match found.\n")
;
{ MaybeVersion = version(more_general,
PredProcId, Version, _, _) },
io__write_string("More general version.\n"),
pd_debug__output_version(ModuleInfo, PredProcId, Version, no)
).
%-----------------------------------------------------------------------------%
pd_debug__register_version(PredProcId, Version) -->
pd_info_get_module_info(ModuleInfo),
{ Register = lambda([IO0::di, IO::uo] is det, (
io__write_string("Registering version:\n", IO0, IO1),
pd_debug__output_version(ModuleInfo, PredProcId, Version,
no, IO1, IO)
)) },
pd_debug__do_io(Register).
%-----------------------------------------------------------------------------%
:- pred pd_debug__output_version(module_info::in, pred_proc_id::in,
version_info::in, bool::in, io__state::di, io__state::uo) is det.
pd_debug__output_version(ModuleInfo, PredProcId,
Version, WriteUnfoldedGoal) -->
{ Version = version_info(Goal - GoalInfo, _, _, _, InstMap,
InitialCost, CostDelta, Parents, _) },
{ predicate_name(ModuleInfo, PredId, PredName) },
io__write_string(PredName),
io__write_string(": (PredProcId :"),
{ PredProcId = proc(PredId, ProcId) },
{ pred_id_to_int(PredId, PredInt) },
{ proc_id_to_int(ProcId, ProcInt) },
io__write_int(PredInt),
io__write_string("-"),
io__write_int(ProcInt),
io__write_string(")"),
io__nl,
io__write_string(" initial cost: "),
io__write_int(InitialCost),
io__nl,
io__write_string(" cost delta: "),
io__write_int(CostDelta),
io__nl,
{ goal_info_get_nonlocals(GoalInfo, NonLocals) },
{ module_info_pred_proc_info(ModuleInfo,
PredId, ProcId, _, ProcInfo) },
{ proc_info_varset(ProcInfo, VarSet) },
{ instmap__restrict(InstMap, NonLocals, InstMap1) },
hlds_out__write_instmap(InstMap1, VarSet, yes, 1),
io__nl,
hlds_out__write_goal(Goal - GoalInfo, ModuleInfo, VarSet, no, 1, "\n"),
io__nl,
io__write_string("Parents: "),
{ set__to_sorted_list(Parents, ParentsList) },
io__write_list(ParentsList, ", ",
pd_debug__write_pred_proc_id(ModuleInfo)),
io__nl,
( { WriteUnfoldedGoal = yes } ->
{ proc_info_goal(ProcInfo, ProcGoal) },
io__write_string("Unfolded goal\n"),
hlds_out__write_goal(ProcGoal,
ModuleInfo, VarSet, no, 1, "\n"),
io__nl
;
[]
).
%-----------------------------------------------------------------------------%
pd_debug__write_instmap -->
pd_info_get_instmap(InstMap),
pd_info_get_proc_info(ProcInfo),
{ proc_info_varset(ProcInfo, VarSet) },
pd_debug__do_io(hlds_out__write_instmap(InstMap, VarSet, yes, 1)).
%-----------------------------------------------------------------------------%
pd_debug__write_pred_proc_id_list(PredProcIds) -->
pd_info_get_module_info(ModuleInfo),
pd_debug__do_io(
io__write_list(PredProcIds, ", ",
pd_debug__write_pred_proc_id(ModuleInfo))
).
:- pred pd_debug__write_pred_proc_id(module_info::in, pred_proc_id::in,
io__state::di, io__state::uo) is det.
pd_debug__write_pred_proc_id(ModuleInfo, proc(PredId, ProcId)) -->
hlds_out__write_pred_proc_id(ModuleInfo, PredId, ProcId).
%-----------------------------------------------------------------------------%
pd_debug__output_goal(Msg, Goal - GoalInfo) -->
pd_debug__do_output(DoOutput),
( { DoOutput = yes } ->
pd_info_get_proc_info(ProcInfo),
{ proc_info_varset(ProcInfo, VarSet) },
pd_info_get_instmap(InstMap),
pd_info_get_io_state(IO0),
pd_info_get_module_info(ModuleInfo),
{
io__write_string(Msg, IO0, IO1),
goal_util__goal_vars(Goal - GoalInfo, Vars),
instmap__restrict(InstMap, Vars, InstMap1),
hlds_out__write_instmap(InstMap1, VarSet, yes, 1, IO1, IO2),
io__nl(IO2, IO3),
hlds_out__write_goal(Goal - GoalInfo, ModuleInfo,
VarSet, yes, 1, "\n", IO3, IO4),
io__nl(IO4, IO5),
io__flush_output(IO5, IO)
},
pd_info_set_io_state(IO)
;
[]
).
%-----------------------------------------------------------------------------%
:- pred pd_debug__do_output(bool::out, pd_info::pd_info_di,
pd_info::pd_info_uo) is det.
pd_debug__do_output(DoDebug) -->
pd_info_get_io_state(IO0),
{ globals__io_lookup_bool_option(debug_pd, DoDebug, IO0, IO1) },
pd_info_set_io_state(IO1).
%-----------------------------------------------------------------------------%
pd_debug__message(Context, Fmt, Args) -->
pd_debug__do_io(prog_out__write_context(Context)),
pd_debug__do_io(io__format(Fmt, Args)).
pd_debug__message(Fmt, Args) -->
pd_debug__do_io(io__format(Fmt, Args)).
%-----------------------------------------------------------------------------%
pd_debug__write(Thing) -->
pd_debug__do_io(io__write(Thing)).
%-----------------------------------------------------------------------------%
%-----------------------------------------------------------------------------%
|
