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better search for predicate location

This commit is contained in:
Vítor Santos Costa 2015-08-18 15:06:36 -05:00
parent 08733b815c
commit f41a8c19ef
1 changed files with 17 additions and 7 deletions
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24
pl/hacks.yap
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@ -19,7 +19,7 @@
:- module('$hacks',
[display_stack_info/4,
display_stack_info/6,
display_pc/3,
display_pc/4,
code_location/3]).
/** hacks:context_variables(-NamedVariables)
@ -78,16 +78,26 @@ construct_code(Cl,Name,Arity,Mod,Where,Location) :-
'$construct_code'(Clause,Name,Arity,Mod,Info,Location).
'$prepare_loc'(Info,_,Info).
display_pc(PC) -->
display_pc(PC, Source) -->
{ integer(PC) },
{ '$pred_for_code'(PC,Name,Arity,Mod,Clause) },
pc_code(Clause,Name,Arity,Mod).
pc_code(Clause,Name,Arity,Mod, Source).
pc_code(-1,Name,Arity,Mod) --> !,
[ ' indexing code of ~a:~q/~d' - [Mod,Name,Arity] ].
pc_code(Cl,Name,Arity,Mod) -->
pc_code(0,_Name,_Arity,_Mod, 'top level' - []) --> !,
{fail}.
pc_code(-1,Name,Arity,Mod, '~a:~q/~d' - [Mod,Name,Arity]) --> !,
{ functor(S, Name,Arity),
nth_clause(Mod:S,1,Ref),
clause_property(Ref, file(File)),
clause_property(Ref, line_count(Line)) },
[ '~a:~d:0, ' - [File,Line] ].
pc_code(Cl,Name,Arity,Mod, 'clause ~d for ~a:~q/~d'-[Cl,Mod,Name,Arity]) -->
{ Cl > 0 },
[ ' clause ~d of ~a:~q/~d' - [Cl,Mod,Name,Arity] ].
{ functor(S, Name,Arity),
nth_clause(Mod:S,Cl,Ref),
clause_property(Ref, file(File)),
clause_property(Ref, line_count(Line)) },
[ '~a:~d:0, ' - [File,Line] ].
display_stack_info(_,_,0,_) --> !.