166 lines
5.2 KiB
Prolog
166 lines
5.2 KiB
Prolog
/**
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* @file expand_macros.yap
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* @author VITOR SANTOS COSTA <vsc@VITORs-MBP.lan>
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* @date Tue Nov 17 15:16:12 2015
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*
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* @brief utilities that perform macro expansion for maplist/2 and
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* friends.
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*
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*
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*/
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%
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%% preprocessing for meta-calls
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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:- module( expand_macros,
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[compile_aux/2,
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pred_name/4,
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transformation_id/1,
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allowed_expansion/1,
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allowed_module/2] ).
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:- use_module(library(lists), [append/3]).
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:- use_module(library(charsio), [format_to_chars/3, read_from_chars/2]).
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:- use_module(library(error), [must_be/2]).
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:- use_module(library(occurs), [sub_term/2]).
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:- multifile allowed_module/2.
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:- dynamic number_of_expansions/1.
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number_of_expansions(0).
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%%%%%%%%%%%%%%%%%%%%
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% utilities
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%%%%%%%%%%%%%%%%%%%%
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compile_aux([Clause|Clauses], Module) :-
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% compile the predicate declaration if needed
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(
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Clause = (Head :- _)
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;
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Clause = Head
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),
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!,
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functor(Head, F, N),
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( current_predicate(Module:F/N)
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->
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true
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;
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% format'*** Creating auxiliary predicate ~q~n', [F/N]),
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% checklist(portray_clause, [Clause|Clauses]),
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compile_term([Clause|Clauses], Module)
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).
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compile_term([], _).
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compile_term([Clause|Clauses], Module) :-
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assert_static(Module:Clause),
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compile_term(Clauses, Module).
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append_args(Term, Args, NewTerm) :-
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Term =.. [Meta|OldArgs],
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append(OldArgs, Args, GoalArgs),
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NewTerm =.. [Meta|GoalArgs].
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aux_preds(Module:Meta, MetaVars, Pred, PredVars, Proto, _, OModule) :- !,
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Module, OModule).
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aux_preds(Meta, MetaVars, Pred, PredVars, Proto, Module, Module) :-
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Meta =.. [F|Args],
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aux_args(Args, MetaVars, PredArgs, PredVars, ProtoArgs),
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Pred =.. [F|PredArgs],
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Proto =.. [F|ProtoArgs].
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aux_args([], [], [], [], []).
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aux_args([Arg|Args], MVars, [Arg|PArgs], PVars, [Arg|ProtoArgs]) :-
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ground(Arg), !,
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aux_args(Args, MVars, PArgs, PVars, ProtoArgs).
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aux_args([Arg|Args], [Arg|MVars], [PVar|PArgs], [PVar|PVars], ['_'|ProtoArgs]) :-
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aux_args(Args, MVars, PArgs, PVars, ProtoArgs).
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pred_name(Macro, Arity, _ , Name) :-
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transformation_id(Id),
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atomic_concat(['$$$__Auxiliary_predicate__ for',Macro,'/',Arity,' ',Id], Name).
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transformation_id(Id) :-
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retract(number_of_expansions(Id)),
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Id1 is Id+1,
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assert(number_of_expansions(Id1)).
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harmless_dcgexception(instantiation_error). % ex: phrase(([1],x:X,[3]),L)
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harmless_dcgexception(type_error(callable,_)). % ex: phrase(27,L)
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allowed_expansion(QExpand) :-
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strip_module(QExpand, Mod, Pred),
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goal_expansion_allowed(Pred, Mod).
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goal_expansion_allowed(Pred, Mod) :-
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allowed_module(Pred,Mod),
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once( prolog_load_context(_, _) ), % make sure we are compiling.
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allowed_module(checklist(_,_),expand_macros).
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allowed_module(checklist(_,_),apply_macros).
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allowed_module(checklist(_,_),maplist).
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allowed_module(maplist(_,_),expand_macros).
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allowed_module(maplist(_,_),apply_macros).
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allowed_module(maplist(_,_),maplist).
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allowed_module(maplist(_,_,_),expand_macros).
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allowed_module(maplist(_,_,_),apply_macros).
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allowed_module(maplist(_,_,_),maplist).
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allowed_module(maplist(_,_,_,_),expand_macros).
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allowed_module(maplist(_,_,_,_),apply_macros).
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allowed_module(maplist(_,_,_,_),maplist).
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allowed_module(maplist(_,_,_,_,_),expand_macros).
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allowed_module(maplist(_,_,_,_,_),apply_macros).
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allowed_module(maplist(_,_,_,_,_),maplist).
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allowed_module(maplist(_,_,_,_,_,_),expand_macros).
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allowed_module(maplist(_,_,_,_,_,_),apply_macros).
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allowed_module(maplist(_,_,_,_,_,_),maplist).
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allowed_module(selectlist(_,_,_),expand_macros).
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allowed_module(selectlist(_,_,_),apply_macros).
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allowed_module(selectlist(_,_,_),maplist).
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allowed_module(include(_,_,_),expand_macros).
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allowed_module(include(_,_,_),apply_macros).
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allowed_module(include(_,_,_),maplist).
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allowed_module(exclude(_,_,_),expand_macros).
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allowed_module(exclude(_,_,_),apply_macros).
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allowed_module(exclude(_,_,_),maplist).
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allowed_module(partition(_,_,_,_),expand_macros).
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allowed_module(partition(_,_,_,_),apply_macros).
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allowed_module(partition(_,_,_,_),maplist).
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allowed_module(partition(_,_,_,_,_),expand_macros).
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allowed_module(partition(_,_,_,_,_),apply_macros).
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allowed_module(partition(_,_,_,_,_),maplist).
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allowed_module(convlist(_,_,_),expand_macros).
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allowed_module(convlist(_,_,_),apply_macros).
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allowed_module(convlist(_,_,_),maplist).
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allowed_module(sumlist(_,_,_,_),expand_macros).
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allowed_module(sumlist(_,_,_,_),apply_macros).
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allowed_module(sumlist(_,_,_,_),maplist).
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allowed_module(mapargs(_,_,_),expand_macros).
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allowed_module(mapargs(_,_,_),apply_macros).
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allowed_module(mapargs(_,_,_),maplist).
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allowed_module(sumargs(_,_,_,_),expand_macros).
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allowed_module(sumargs(_,_,_,_),apply_macros).
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allowed_module(sumargs(_,_,_,_),maplist).
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allowed_module(mapnodes(_,_,_),expand_macros).
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allowed_module(mapnodes(_,_,_),apply_macros).
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allowed_module(mapnodes(_,_,_),maplist).
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allowed_module(checknodes(_,_),expand_macros).
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allowed_module(checknodes(_,_),apply_macros).
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allowed_module(checknodes(_,_),maplist).
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allowed_module(sumnodes(_,_,_,_),expand_macros).
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allowed_module(sumnodes(_,_,_,_),apply_macros).
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allowed_module(sumnodes(_,_,_,_),maplist).
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