diogo/yap-6.3
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allow finer control over indexing sub-terms.

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improve flag code a bit.
This commit is contained in:
Vitor Santos Costa 2012-06-01 13:16:29 +01:00
parent 2def937080
commit 39f392be9c
5 changed files with 27 additions and 8 deletions
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7
C/index.c
View File

@ -2545,12 +2545,13 @@ do_compound_index(ClauseDef *min0, ClauseDef* max0, Term* sreg, struct intermedi
/* base case, just commit to the current code */
return emit_single_switch_case(min0, cint, first, clleft, fail_l);
}
if (yap_flags[INDEXING_MODE_FLAG] == INDEX_MODE_SINGLE && ap->PredFlags & LogUpdatePredFlag) {
if ((yap_flags[INDEXING_MODE_FLAG] == INDEX_MODE_SINGLE && ap->PredFlags & LogUpdatePredFlag) ||
(yap_flags[INDEXING_TERM_DEPTH_FLAG] && cint->term_depth - cint->last_index_new_depth > yap_flags[INDEXING_TERM_DEPTH_FLAG])) {
*newlabp =
do_var_clauses(min0, max0, FALSE, cint, first, clleft, fail_l, ap->ArityOfPE+1);
return ret_lab;
return ret_lab;
}
if (sreg == NULL || cint->term_depth > 20) {
if (sreg == NULL) {
return suspend_indexing(min0, max0, ap, cint);
}
cint->term_depth++;

3
C/init.c
View File

@ -915,6 +915,7 @@ InitFlags(void)
yap_flags[INDEXING_MODE_FLAG] = INDEX_MODE_MULTI;
yap_flags[TABLING_MODE_FLAG] = 0;
yap_flags[QUIET_MODE_FLAG] = FALSE;
yap_flags[INDEXING_TERM_DEPTH_FLAG] = 0L;
}
static void
@ -1316,7 +1317,7 @@ Yap_InitWorkspace(UInt Heap, UInt Stack, UInt Trail, UInt Atts, UInt max_table_s
Yap_InitTime();
/* InitAbsmi must be done before InitCodes */
/* This must be done before initialising predicates */
for (i = 0; i <= LAST_FLAG; i++) {
for (i = 0; i <= NUMBER_OF_YAP_FLAGS; i++) {
yap_flags[i] = 0;
}
#ifdef MPW

5
H/Yap.h
View File

@ -453,8 +453,9 @@ typedef enum
TABLING_MODE_FLAG = 20,
VARS_CAN_HAVE_QUOTE_FLAG = 21,
QUIET_MODE_FLAG = 22,
INDEXING_TERM_DEPTH_FLAG = 23,
/* let this be the last one */
LAST_FLAG = 23
NUMBER_OF_YAP_FLAGS = 24
} yap_flags;
#define STRING_AS_CHARS 0
@ -501,8 +502,6 @@ typedef enum
YAP_FAIL_SIGNAL = 0x100000 /* P = FAILCODE */
} yap_signals;
#define NUMBER_OF_YAP_FLAGS LAST_FLAG
typedef enum
{
GPROF_NO_EVENT,

7
docs/yap.tex
View File

@ -8078,8 +8078,13 @@ for which YAP was compiled and Operating System information.
@item index
@findex index (yap_flag/2 option)
@* If @code{on} allow indexing (default), if @code{off} disable it, if
@code{single} allow on first argument only.
@item index_sub_term_search_depth
@findex index (yap_flag/2 option)
@*
If @code{on} allow indexing (default), if @code{off} disable it.
Maximum bound on searching sub-terms for indexing, if @code{0} (default) no bound.
@item informational_messages
@findex informational_messages (yap_flag/2 option)

13
pl/flags.yap
View File

@ -236,6 +236,18 @@ yap_flag(index,X) :-
yap_flag(index,X) :-
'$do_error'(domain_error(flag_value,index+X),yap_flag(index,X)).
% do or do not indexation
yap_flag(index_sub_term_search_depth,X) :- var(X),
'$access_yap_flags'(23, X), !.
yap_flag(index_sub_term_search_depth,X,X) :-
integer(X), X > 0,
'$set_yap_flags'(23,X1).
yap_flag(index_sub_term_search_depth,X,X) :-
\+ integer(X),
'$do_error'(type_error(integer,X),yap_flag(index_sub_term_search_depth,X)).
yap_flag(index_sub_term_search_depth,X,X) :-
'$do_error'(domain_error(out_of_range,index_sub_term_search_depth+X),yap_flag(index_sub_term_search_depth,X)).
yap_flag(home,X) :-
'$yap_home'(X).
@ -869,6 +881,7 @@ yap_flag(dialect,yap).
'$yap_system_flag'(home ).
'$yap_system_flag'(host_type ).
'$yap_system_flag'(index).
'$yap_system_flag'(index_sub_term_search_depth).
'$yap_system_flag'(tabling_mode).
'$yap_system_flag'(informational_messages).
'$yap_system_flag'(integer_rounding_function).