mirror of
https://github.com/Mercury-Language/mercury.git
synced 2025-12-19 07:45:09 +00:00
3ab8d92226
Estimated hours taken: _2___ Change names with badly placed double underscores (ie where the part of a name before a double underscore is not the same as the module name.) Reflect changes in the library interface. compiler/*: Use the newer, more correct form of the term and bool names. Predicates "bool__" are now "std_util__bool" and labels of the term ADT are now "term_" instead of "term__". compiler/vn*.m: change all names "vn__*" to a correct module prefix. All the names remain qualified. compiler/hlds.m: s/\<is_builtin__/hlds__is_builtin_/g s/\<dependency_info__/hlds__dependency_info_/g compiler/unify_proc.m: s/\<unify_proc_info__/unify_proc__info_/g compiler/transform.m: s/\<reschedule__conj/transform__reschedule_conj/g
79 lines
2.8 KiB
Mathematica
79 lines
2.8 KiB
Mathematica
%-----------------------------------------------------------------------------%
|
|
% Copyright (C) 1995 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: transform.m
|
|
% Main author: bromage.
|
|
%
|
|
% This module defines the primitive operations that may be performed
|
|
% on a logic program. These include:
|
|
%
|
|
% - unfold (NYI)
|
|
% Replaces a goal with its possible expansions.
|
|
%
|
|
% - fold (NYI)
|
|
% Opposite of unfold (not surprisingly).
|
|
%
|
|
% - definition (NYI)
|
|
% Define a new predicate with a given goal.
|
|
%
|
|
% - identity (NYI)
|
|
% Apply an identity (such as the associative law for
|
|
% addition) to a goal.
|
|
%
|
|
% These operations form the basis of most high-level transformations.
|
|
%
|
|
% Also included is a conjunction rescheduler. Useful just in case
|
|
% your transformer upset the ordering in a conjunction.
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- module transform.
|
|
:- interface.
|
|
:- import_module hlds, llds, mode_info.
|
|
|
|
%:- pred unfold__in_proc(pred_id, proc_id, hlds__goal_expr,
|
|
% mode_info, mode_info).
|
|
%:- mode unfold__in_proc(in, in, out, mode_info_di, module_info_uo) is det.
|
|
|
|
:- pred transform__reschedule_conj(list(hlds__goal), list(hlds__goal),
|
|
mode_info, mode_info).
|
|
:- mode transform__reschedule_conj(in, out, mode_info_di, mode_info_uo) is det.
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- implementation.
|
|
:- import_module list, map, set, std_util.
|
|
:- import_module mode_util, delay_info, term, require.
|
|
:- import_module varset, code_aux, prog_io.
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
% unfold__in_proc(
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
transform__reschedule_conj([], []) --> [].
|
|
transform__reschedule_conj([Goal0 | Goals0], Goals) -->
|
|
=(ModeInfo0),
|
|
{ mode_info_get_instmap(ModeInfo0, InstMap0) },
|
|
{ mode_info_get_delay_info(ModeInfo0, DelayInfo0) },
|
|
|
|
{ delay_info__wakeup_goals(DelayInfo0, WokenGoals, DelayInfo1) },
|
|
mode_info_set_delay_info(DelayInfo1),
|
|
( { WokenGoals \= [] } ->
|
|
{ list__append(WokenGoals, [Goal0 | Goals0], Goals1) },
|
|
transform__reschedule_conj(Goals1, Goals)
|
|
;
|
|
{ Goal0 = _Goal0Goal - Goal0Info },
|
|
{ goal_info_get_instmap_delta(Goal0Info, InstMapDelta) },
|
|
{ apply_instmap_delta(InstMap0, InstMapDelta, InstMap1) },
|
|
mode_info_set_instmap(InstMap1),
|
|
transform__reschedule_conj(Goals0, Goals1),
|
|
{ Goals = [Goal0 | Goals1] }
|
|
).
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
%-----------------------------------------------------------------------------%
|