rishi/scryer-prolog
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514 Commits

Author SHA1 Message Date
Adrián Arroyo Calle
36b3150225 Negative shifts (fixes #1719 and #1718) 2023-01-30 18:56:37 +01:00
Mark Thom
a7e93db363 improve retract/1 and related predicates (#1598) 2023-01-22 21:04:41 -07:00
Mark Thom
3a4aa2a541 tighten deallocate truncation of stack (#1686) 2023-01-12 23:47:07 -07:00
Mark Thom
820011412b Merge pull request #1658 from aarroyoc/copy_file 
Add predicate file_copy/2 in library(files)
 2022-12-18 21:22:25 +01:00
Markus Triska
6cb8d7596a dereference more registers, analogous to d660e4244f 
See also #1654 for a nice test case by @notoria which this corrects.
 2022-12-18 17:43:33 +01:00
Mark Thom
cf63e8375d track attr_var_init lengths on the stack (#1667) 2022-12-16 20:10:17 -07:00
Mark Thom
0a8fc70ba9 detect cyclic bindings in attr_vars_of_term (#1666) 2022-12-16 00:42:38 -07:00
Mark Thom
4dc0114c52 fix mishandled if-then-else interpretation (#1659) 2022-12-11 16:35:32 -07:00
Adrián Arroyo Calle
5f703afed1 Rename copy_file/2 to file_copy/2 2022-12-11 00:08:41 +01:00
Adrián Arroyo Calle
c6aa2068e2 Add predicate copy_file/2 in library(files) 2022-12-11 00:06:56 +01:00
Markus Triska
309e5b320e more uses of newly available deref_register(n) 2022-12-07 23:19:31 +01:00
Markus Triska
56e5da6680 introduce and use deref_register(n) 2022-12-06 21:07:50 +01:00
Mark Thom
d660e4244f dereference encoding register in crypto_data_decrypt (#1650) 2022-12-05 23:28:47 -07:00
Mark Thom
d383e5eb8b avoid pushing stack variables to the heap in get_continuation_chunk (#1644) 2022-12-05 23:17:15 -07:00
Mark Thom
3bdcc3aba9 return -1 from get_code to indicate end of file (#1622) 2022-11-18 18:19:55 -07:00
Mark Thom
9366a48d6d introduce InlineTermStream to avoid arena allocations during call_inline (#1576) 2022-11-09 00:01:01 +01:00
Mark Thom
8781e03863 cache ball terms before unifying in handle_ball/3 (#1608) 2022-10-26 23:36:07 -06:00
Mark Thom
140149f051 fix crash in read_term (#1616) 2022-10-26 23:36:07 -06:00
Markus Triska
579aa8acd4 use newly available u8s_to_string 2022-10-26 23:36:07 -06:00
Markus Triska
9c2cb144b5 remove redundant error handling, since this case is checked in Prolog 
This restores f668640e3d, where this
change was already made. It seems it was accidentally overwritten in
0404c3bd94.
 2022-10-26 23:36:07 -06:00
Markus Triska
3d04689660 introduce and use u8s_to_string 2022-10-26 23:36:07 -06:00
Markus Triska
9c1de8e00b ENHANCED: Eliminate the OpenSSL dependency of library(crypto). 
This is achieved by using the newly available crrl crate by @pornin
to implement crypto_curve_scalar_mult/4 for secp256k1. Many thanks!
 2022-10-26 23:36:07 -06:00
Mark Thom
1109e05e06 properly match strings concluding with characters in lists (#1597) 2022-10-26 23:36:07 -06:00
Mark Thom
8a9cd7779c offset into complete strings with '$skip_max_list'/4 (#1529) 2022-10-26 23:36:07 -06:00
Mark Thom
d4c0277065 don't return ops with priority 0 when building set for current_op (#1571) 2022-10-26 23:36:07 -06:00
Mark Thom
069e132c0e treat functors with PI '.'/2 as lists (#1570) 2022-10-26 23:36:07 -06:00
Adrián Arroyo Calle
181be5be3f HTTP Server 2.0 2022-10-26 23:36:07 -06:00
Mark Thom
91d4e91f53 prefix inlined goals with module names in expand_subgoal/5 (#1551) 2022-10-26 23:36:07 -06:00
Mark Thom
ad3ae7991b try to invoke '$call_inline' a second time in call/N (#1543) 2022-10-26 23:36:07 -06:00
Mark Thom
ea95a7900c deduplicate index ptr inlining for 0-arity atoms (#1538) 2022-10-26 23:36:07 -06:00
Mark Thom
ec9c763211 print index_ptr offset (#1534) 2022-10-26 23:36:07 -06:00
Mark Thom
0aec980aa8 inference count call_inline, fail on undefined index 2022-10-26 23:36:07 -06:00
Mark Thom
6b05ee5130 streamline assertz/1, asserta/1 2022-10-26 23:36:07 -06:00
Mark Thom
1ffbf63d20 inline metacalls 2022-10-26 23:36:07 -06:00
Manos Pitsidianakis
b905d2758d fix type_error with instantiated EOF -1 byte literal in get_byte/2 
According to ISO Prolog, get_byte/2 predicate can receive an
instantiated input byte:

http://www.gprolog.org/manual/html_node/gprolog037.html#sec156

    get_byte(+stream_or_alias, ?in_byte)

Since in_byte can be -1 if EOF is reached, instantiating it with -1
should work but does not because the implementation is trying to convert
it to a u8 which is unsigned:

?- open("/dev/null", read, S, [type(binary)]), get_byte(S, -1).
   error(type_error(in_byte,-1),get_byte/2).

This commit adds an extra check for -1 before checking for a valid u8
instantiated value if in_byte is an input:

?- open("/dev/null", read, S, [type(binary)]), get_byte(S, -1).
   S = '$stream'(0x55601e65c998).

Closes #1625
 2022-10-26 13:49:38 +03:00
Manos Pitsidianakis
a9a06b5297 Fix xor/2 type error reporting wrong argument 
If first argument n1 in xor/2 is of wrong numerical type, the match
patterns fall through to a catch all case that reports the second
argument in the type error.

Fixes #1626

`xor/2 function reports the wrong argument in type error #1626`

https://github.com/mthom/scryer-prolog/issues/1626
 2022-10-24 19:26:43 +03:00
Ross Smyth
577f85099d Fixed imports num-rug-adapter 2022-07-17 02:06:37 -04:00
Mark Thom
cd1150c11d use setup_cal_n_init_goal_info in dynamic_module_resolution 2022-06-15 22:33:13 -06:00
Mark Thom
987bbdecf5 improve efficiency of call/N, replace '$call_with_default_policy' with 
'$call_with_inference_counting'
 2022-06-12 22:34:07 -06:00
Mark Thom
a68394b6f2 simplify detecting undefined goal_ and term_expansion 2022-06-12 22:34:07 -06:00
Mark Thom
336311ecc8 replace call with $call in more meta-predicates 2022-06-06 09:28:03 -06:00
Mark Thom
e9bb35c895 emit indexing instructions in single clauses of dynamic predicates 2022-06-04 23:43:48 -06:00
Mark Thom
c36d4a9c9a unmark cells in arith_eval_by_metacall (#1497) 2022-06-01 00:02:11 -06:00
Mark Thom
084fc84590 use existence_error for dropped streams (#1472) 2022-05-23 11:15:58 -06:00
Mark Thom
10a11c293e fix stream position and term comparison bugs (#1472) 2022-05-22 14:16:14 -06:00
Mark Thom
bef8eb538c throw a representation error if max arity is exceeded (#1483) 2022-05-22 00:03:55 -06:00
Mark Thom
4d23542ef3 add max arity checks at various stages (#1459) 2022-05-21 12:32:48 -06:00
Mark Thom
2f3de51e55 remove non-determinism in number_chars/2 and numbercodes/2 (#1473) 2022-05-13 18:38:58 -06:00
Mark Thom
cea1353fbb use must_be(chars) in number_chars/2 (#1470) 2022-05-12 01:09:06 -06:00
Euan Lacy
c2a87f898e fix: remove unnecessary string & vec allocations 2022-05-10 18:10:18 +01:00