rishi/scryer-prolog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'rebis-dev' of https://github.com/mthom/scryer-prolog into rebis-dev

Browse Source
This commit is contained in:
Mark Thom
2021-02-03 22:34:34 -07:00
parent b7218d2279 e17eb01f76
commit 62b103fa23
12 changed files with 377 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
Cargo.lock generated
View File

@@ -23,9 +23,9 @@ checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
[[package]]
name = "az"
version = "1.0.0"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e9bcd47d94aa4eb8c076b50fc61a75020789394ffb9bd74a180b3379130f6569"
checksum = "d84e1d907bfc5795a6addb95ef8666141ee73c8f2f5250ff2a46bf4e4f4aec8a"
[[package]]
name = "base64"
@@ -470,9 +470,9 @@ dependencies = [
[[package]]
name = "libc"
version = "0.2.84"
version = "0.2.85"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1cca32fa0182e8c0989459524dc356b8f2b5c10f1b9eb521b7d182c03cf8c5ff"
checksum = "7ccac4b00700875e6a07c6cde370d44d32fa01c5a65cdd2fca6858c479d28bb3"
[[package]]
name = "libsodium-sys"
@@ -1103,9 +1103,9 @@ dependencies = [
[[package]]
name = "ring"
version = "0.16.19"
version = "0.16.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "024a1e66fea74c66c66624ee5622a7ff0e4b73a13b4f5c326ddb50c708944226"
checksum = "3053cf52e236a3ed746dfc745aa9cacf1b791d846bdaf412f60a8d7d6e17c8fc"
dependencies = [
"cc",
"libc",

265
crates/prolog_parser/Cargo.lock generated Normal file
View File

@@ -0,0 +1,265 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "arrayvec"
version = "0.4.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cd9fd44efafa8690358b7408d253adf110036b88f55672a933f01d616ad9b1b9"
dependencies = [
"nodrop",
]
[[package]]
name = "autocfg"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
[[package]]
name = "az"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d84e1d907bfc5795a6addb95ef8666141ee73c8f2f5250ff2a46bf4e4f4aec8a"
[[package]]
name = "cfg-if"
version = "0.1.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
[[package]]
name = "gmp-mpfr-sys"
version = "1.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a57fdb339d49833021b1fded600ed240ae907e33909d5511a61dff884df7f16e"
dependencies = [
"libc",
"winapi",
]
[[package]]
name = "lexical"
version = "2.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8e0d09e60c187a6d0a3fa418aec8587c6a4ae9de872f6126f2134f319b5ed10d"
dependencies = [
"cfg-if",
"lexical-core",
"rustc_version",
]
[[package]]
name = "lexical-core"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2304bccb228c4b020f3a4835d247df0a02a7c4686098d4167762cfbbe4c5cb14"
dependencies = [
"arrayvec",
"cfg-if",
"rustc_version",
"ryu",
"static_assertions",
]
[[package]]
name = "libc"
version = "0.2.85"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7ccac4b00700875e6a07c6cde370d44d32fa01c5a65cdd2fca6858c479d28bb3"
[[package]]
name = "nodrop"
version = "0.1.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
[[package]]
name = "num-bigint"
version = "0.2.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "090c7f9998ee0ff65aa5b723e4009f7b217707f1fb5ea551329cc4d6231fb304"
dependencies = [
"autocfg",
"num-integer",
"num-traits 0.2.14",
]
[[package]]
name = "num-integer"
version = "0.1.44"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
dependencies = [
"autocfg",
"num-traits 0.2.14",
]
[[package]]
name = "num-rational"
version = "0.2.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c000134b5dbf44adc5cb772486d335293351644b801551abe8f75c84cfa4aef"
dependencies = [
"autocfg",
"num-bigint",
"num-integer",
"num-traits 0.2.14",
]
[[package]]
name = "num-rug-adapter"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7470b6acf85abce0771203112db4181d03f7b8a6be49f0e842a78030192f8a58"
dependencies = [
"libc",
"num-bigint",
"num-integer",
"num-rational",
"num-traits 0.2.14",
]
[[package]]
name = "num-traits"
version = "0.1.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "92e5113e9fd4cc14ded8e499429f396a20f98c772a47cc8622a736e1ec843c31"
dependencies = [
"num-traits 0.2.14",
]
[[package]]
name = "num-traits"
version = "0.2.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
dependencies = [
"autocfg",
]
[[package]]
name = "ordered-float"
version = "0.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7eb5259643245d3f292c7a146b2df53bba24d7eab159410e648eb73dc164669d"
dependencies = [
"num-traits 0.1.43",
"unreachable",
]
[[package]]
name = "prolog_parser_rebis"
version = "0.8.68"
dependencies = [
"lexical",
"num-rug-adapter",
"ordered-float",
"rug",
"unicode_reader",
]
[[package]]
name = "rug"
version = "1.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e538d00da450a8e48aac7e6322e67b2dc86ec71a1feeac0e3954c4f07f01bc45"
dependencies = [
"az",
"gmp-mpfr-sys",
"libc",
]
[[package]]
name = "rustc_version"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
dependencies = [
"semver",
]
[[package]]
name = "ryu"
version = "1.0.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
[[package]]
name = "semver"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
dependencies = [
"semver-parser",
]
[[package]]
name = "semver-parser"
version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
[[package]]
name = "smallvec"
version = "1.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
[[package]]
name = "static_assertions"
version = "0.3.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7f3eb36b47e512f8f1c9e3d10c2c1965bc992bd9cdb024fa581e2194501c83d3"
[[package]]
name = "unicode-segmentation"
version = "1.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bb0d2e7be6ae3a5fa87eed5fb451aff96f2573d2694942e40543ae0bbe19c796"
[[package]]
name = "unicode_reader"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5b639121690b27acd92c97ed2b52c5e5e8d3d39482e943b4559695cef62f771a"
dependencies = [
"smallvec",
"unicode-segmentation",
]
[[package]]
name = "unreachable"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
dependencies = [
"void",
]
[[package]]
name = "void"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
[[package]]
name = "winapi"
version = "0.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
dependencies = [
"winapi-i686-pc-windows-gnu",
"winapi-x86_64-pc-windows-gnu",
]
[[package]]
name = "winapi-i686-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
[[package]]
name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

8
crates/prolog_parser/tests/bom.rs
View File

@@ -1,8 +1,8 @@
extern crate prolog_parser;
extern crate prolog_parser_rebis;
use prolog_parser::ast::*;
use prolog_parser::lexer::{Lexer, Token};
use prolog_parser::tabled_rc::TabledData;
use prolog_parser_rebis::ast::*;
use prolog_parser_rebis::lexer::{Lexer, Token};
use prolog_parser_rebis::tabled_rc::TabledData;
use std::rc::Rc;

8
crates/prolog_parser/tests/parse_tokens.rs
View File

@@ -1,8 +1,8 @@
extern crate prolog_parser;
extern crate prolog_parser_rebis;
use prolog_parser::ast::*;
use prolog_parser::lexer::{Lexer, Token};
use prolog_parser::tabled_rc::TabledData;
use prolog_parser_rebis::ast::*;
use prolog_parser_rebis::lexer::{Lexer, Token};
use prolog_parser_rebis::tabled_rc::TabledData;
use std::rc::Rc;

2
src/lib/atts.pl
View File

@@ -156,6 +156,8 @@ user:goal_expansion(Term, M:get_atts(Var, Attr)) :-
nonvar(Term),
Term = get_atts(Var, M, Attr).
:- meta_predicate call_residue_vars(0, ?).
call_residue_vars(Goal, Vars) :-
'$get_attr_var_queue_delim'(B),
call(Goal),

23
src/lib/clpz.pl
View File

@@ -5884,10 +5884,12 @@ difference_arcs([V|Vs], FL0) -->
writeln(T) :- write(T), nl.
:- meta_predicate must_succeed(0).
must_succeed(G) :-
(G -> true
;write(failed-G), halt
).
( G -> true
; throw(failed-G)
).
enumerate([], _) --> [].
enumerate([N|Ns], V) -->
@@ -6047,6 +6049,8 @@ remove_attr(Var, Attr) :-
functor(Term, Attr, 1),
put_atts(Var, -Term).
:- meta_predicate with_local_attributes(?, 0, ?).
with_local_attributes(Vars, Goal, Result) :-
catch((Goal,
maplist(del_all_attrs, Vars),
@@ -7763,11 +7767,10 @@ zo_t(1, true).
Generated predicates
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
generated_clauses(Cs) :-
make_parse_clpz(Cs1),
make_parse_reified(Cs2),
make_matches(Cs3),
append([Cs1,Cs2,Cs3], Cs).
term_expansion(make_parse_clpz, Clauses) :- make_parse_clpz(Clauses).
term_expansion(make_parse_reified, Clauses) :- make_parse_reified(Clauses).
term_expansion(make_matches, Clauses) :- make_matches(Clauses).
:- initialization((generated_clauses(Cs),
maplist(assertz, Cs))).
make_parse_clpz.
make_parse_reified.
make_matches.

19
src/lib/dcgs.pl
View File

@@ -19,7 +19,7 @@ phrase(GRBody, S0, S) :-
( var(GRBody) ->
throw(error(instantiation_error, phrase/3))
; strip_module(GRBody, Module, GRBody0),
dcg_constr(GRBody0),
dcg_constr(GRBody0) ->
( var(Module) ->
phrase_(GRBody0, S0, S)
; phrase_(Module:GRBody0, S0, S)
@@ -31,9 +31,12 @@ phrase(GRBody, S0, S) :-
phrase_([], S, S).
phrase_(!, S, S).
phrase_(_:[], S, S) :- !.
phrase_(_:!, S, S) :- !.
phrase_((A, B), S0, S) :-
phrase(A, S0, S1), phrase(B, S1, S).
phrase_(M:(A, B), S0, S) :-
!,
phrase(M:A, S0, S1), phrase(M:B, S1, S).
phrase_((A -> B ; C), S0, S) :-
!,
@@ -50,23 +53,37 @@ phrase_(M:(A -> B ; C), S0, S) :-
phrase_((A ; B), S0, S) :-
( phrase(A, S0, S) ; phrase(B, S0, S) ).
phrase_(M:(A ; B), S0, S) :-
!,
( phrase(M:A, S0, S) ; phrase(M:B, S0, S) ).
phrase_((A | B), S0, S) :-
( phrase(A, S0, S) ; phrase(B, S0, S) ).
phrase_(M:(A | B), S0, S) :-
!,
( phrase(M:A, S0, S) ; phrase(M:B, S0, S) ).
phrase_({G}, S0, S) :-
( call(G), S0 = S ).
phrase_(M:{G}, S0, S) :-
!,
( call(M:G), S0 = S ).
phrase_(call(G), S0, S) :-
call(G, S0, S).
phrase_(M:call(G), S0, S) :-
!,
call(M:G, S0, S).
phrase_((A -> B), S0, S) :-
phrase((A -> B ; fail), S0, S).
phrase_(M:(A -> B), S0, S) :-
!,
phrase((M:A -> M:B ; fail), S0, S).
phrase_(phrase(NonTerminal), S0, S) :-
phrase(NonTerminal, S0, S).
phrase_(M:phrase(NonTerminal), S0, S) :-
!,
phrase(M:NonTerminal, S0, S).
phrase_([T|Ts], S0, S) :-
append([T|Ts], S, S0).
phrase_(_:[T|Ts], S0, S) :-
append([T|Ts], S, S0).
% The same version of the below two dcg_rule clauses, but with module scoping.

16
src/lib/lists.pl
View File

@@ -126,7 +126,7 @@ maplist(Cont, [E1|E1s], [E2|E2s], [E3|E3s], [E4|E4s], [E5|E5s], [E6|E6s], [E7|E7
sum_list(Ls, S) :-
foldl(sum_, Ls, 0, S).
foldl(lists:sum_, Ls, 0, S).
sum_(L, S0, S) :- S is S0 + L.
@@ -160,17 +160,17 @@ transpose(Ls, Ts) :-
lists_transpose([], []).
lists_transpose([L|Ls], Ts) :-
maplist(same_length(L), Ls),
foldl(transpose_, L, Ts, [L|Ls], _).
maplist(lists:same_length(L), Ls),
foldl(lists:transpose_, L, Ts, [L|Ls], _).
transpose_(_, Fs, Lists0, Lists) :-
maplist(list_first_rest, Lists0, Fs, Lists).
maplist(lists:list_first_rest, Lists0, Fs, Lists).
list_first_rest([L|Ls], L, Ls).
list_to_set(Ls0, Ls) :-
maplist(with_var, Ls0, LVs0),
maplist(lists:with_var, Ls0, LVs0),
keysort(LVs0, LVs),
same_elements(LVs),
pick_firsts(LVs0, Ls).
@@ -188,7 +188,7 @@ with_var(E, E-_).
same_elements([]).
same_elements([EV|EVs]) :-
foldl(unify_same, EVs, EV, _).
foldl(lists:unify_same, EVs, EV, _).
unify_same(E-V, Prev-Var, E-V) :-
( Prev == E ->
@@ -221,13 +221,13 @@ nth0_search(N0, N, [_|Es], E) :-
list_max([N|Ns], Max) :-
foldl(list_max_, Ns, N, Max).
foldl(lists:list_max_, Ns, N, Max).
list_max_(N, Max0, Max) :-
Max is max(N, Max0).
list_min([N|Ns], Min) :-
foldl(list_min_, Ns, N, Min).
foldl(lists:list_min_, Ns, N, Min).
list_min_(N, Min0, Min) :-
Min is min(N, Min0).

16
src/lib/reif.pl
View File

@@ -4,6 +4,8 @@
:- use_module(library(dif)).
:- meta_predicate if_(0, 0, 0).
if_(If_1, Then_0, Else_0) :-
call(If_1, T),
( T == true -> call(Then_0)
@@ -26,6 +28,8 @@ dif(X, Y, T) :-
non(true, false).
non(false, true).
:- meta_predicate tfilter(1, ?, ?).
tfilter(C_2, Es, Fs) :-
i_tfilter(Es, C_2, Fs).
@@ -34,6 +38,8 @@ i_tfilter([E|Es], C_2, Fs0) :-
if_(call(C_2, E), Fs0 = [E|Fs], Fs0 = Fs),
i_tfilter(Es, C_2, Fs).
:- meta_predicate tpartition(1, ?, ?).
tpartition(P_2, Xs, Ts, Fs) :-
i_tpartition(Xs, P_2, Ts, Fs).
@@ -44,12 +50,18 @@ i_tpartition([X|Xs], P_2, Ts0, Fs0) :-
, ( Fs0 = [X|Fs], Ts0 = Ts ) ),
i_tpartition(Xs, P_2, Ts, Fs).
:- meta_predicate ','(0, 0, ?).
','(A_1, B_1, T) :-
if_(A_1, call(B_1, T), T = false).
:- meta_predicate ';'(0, 0, ?).
';'(A_1, B_1, T) :-
if_(A_1, T = true, call(B_1, T)).
:- meta_predicate cond_t(0, 0, ?).
cond_t(If_1, Then_0, T) :-
if_(If_1, ( Then_0, T = true ), T = false ).
@@ -60,8 +72,12 @@ i_memberd_t([], _, false).
i_memberd_t([X|Xs], E, T) :-
if_( X = E, T = true, i_memberd_t(Xs, E, T) ).
:- meta_predicate tmember(1, ?).
tmember(P_2, [X|Xs]) :-
if_( call(P_2, X), true, tmember(P_2, Xs) ).
:- meta_predicate tmember_t(1, ?).
tmember_t(P_2, [X|Xs], T) :-
if_( call(P_2, X), T = true, tmember_t(P_2, Xs, T) ).

44
src/loader.pl
View File

@@ -423,7 +423,7 @@ expand_module_names(Goals, MetaSpecs, Module, ExpandedGoals, HeadVars) :-
Goals =.. [GoalFunctor | SubGoals],
( GoalFunctor == (:),
SubGoals = [M, SubGoal] ->
expand_module_names(SubGoal, MetaSpecs, Module, ExpandedSubGoal, HeadVars),
expand_module_names(SubGoal, MetaSpecs, M, ExpandedSubGoal, HeadVars),
ExpandedGoals = M:ExpandedSubGoal
; expand_meta_predicate_subgoals(SubGoals, MetaSpecs, Module, ExpandedGoalList, HeadVars),
ExpandedGoals =.. [GoalFunctor | ExpandedGoalList]
@@ -434,6 +434,28 @@ expand_goal(UnexpandedGoals, Module, ExpandedGoals) :-
expand_goal(UnexpandedGoals, Module, ExpandedGoals, []),
!.
expand_goal_cases((Goal0, Goals0), Module, ExpandedGoals, HeadVars) :-
( expand_goal(Goal0, Module, Goal1, HeadVars) ->
expand_goal(Goals0, Module, Goals1, HeadVars),
thread_goals(Goal1, ExpandedGoals, Goals1, (','))
; expand_goal(Goals0, Module, Goals1, HeadVars),
ExpandedGoals = (Goal0, Goals1)
).
expand_goal_cases((Goals0 -> Goals1), Module, ExpandedGoals, HeadVars) :-
expand_goal(Goals0, Module, ExpandedGoals0, HeadVars),
expand_goal(Goals1, Module, ExpandedGoals1, HeadVars),
ExpandedGoals = (ExpandedGoals0 -> ExpandedGoals1).
expand_goal_cases((Goals0 ; Goals1), Module, ExpandedGoals, HeadVars) :-
expand_goal(Goals0, Module, ExpandedGoals0, HeadVars),
expand_goal(Goals1, Module, ExpandedGoals1, HeadVars),
ExpandedGoals = (ExpandedGoals0 ; ExpandedGoals1).
expand_goal_cases((\+ Goals0), Module, ExpandedGoals, HeadVars) :-
expand_goal(Goals0, Module, Goals1, HeadVars),
ExpandedGoals = (\+ Goals1).
expand_goal_cases((Module:Goals0), _, ExpandedGoals, HeadVars) :-
expand_goal(Goals0, Module, Goals1, HeadVars),
ExpandedGoals = (Module:Goals1).
expand_goal(UnexpandedGoals, Module, ExpandedGoals, HeadVars) :-
( var(UnexpandedGoals) ->
UnexpandedGoals = ExpandedGoals
@@ -442,24 +464,8 @@ expand_goal(UnexpandedGoals, Module, ExpandedGoals, HeadVars) :-
goal_expansion(UnexpandedGoals1, user, Goals)
; Goals = UnexpandedGoals1
),
( Goals = (Goal0, Goals0) ->
( expand_goal(Goal0, Module, Goal1, HeadVars) ->
expand_goal(Goals0, Module, Goals1, HeadVars),
thread_goals(Goal1, ExpandedGoals, Goals1, (','))
; expand_goal(Goals0, Module, Goals1, HeadVars),
ExpandedGoals = (Goal0, Goals1)
)
; Goals = (Goals0 -> Goals1) ->
expand_goal(Goals0, Module, ExpandedGoals0, HeadVars),
expand_goal(Goals1, Module, ExpandedGoals1, HeadVars),
ExpandedGoals = (ExpandedGoals0 -> ExpandedGoals1)
; Goals = (Goals0 ; Goals1) ->
expand_goal(Goals0, Module, ExpandedGoals0, HeadVars),
expand_goal(Goals1, Module, ExpandedGoals1, HeadVars),
ExpandedGoals = (ExpandedGoals0 ; ExpandedGoals1)
; Goals = (\+ Goals0) ->
expand_goal(Goals0, Module, Goals1, HeadVars),
ExpandedGoals = (\+ Goals1)
( expand_goal_cases(Goals, Module, ExpandedGoals, HeadVars) ->
true
; predicate_property(Module:Goals, meta_predicate(MetaSpecs)) ->
expand_module_names(Goals, MetaSpecs, Module, ExpandedGoals, HeadVars)
; thread_goals(Goals, ExpandedGoals, (','))

16
src/machine/compile.rs
View File

@@ -1001,22 +1001,22 @@ fn append_compiled_clause(
AppendOrPrepend::Append,
);
if lower_bound + 1 == target_pos {
let lower_bound_clause_start = find_inner_choice_instr(
code,
skeleton.clauses[lower_bound].clause_start,
index_loc,
);
let target_pos_clause_start = find_inner_choice_instr(
code,
skeleton.clauses[target_pos - 1].clause_start,
index_loc,
);
if lower_bound + 1 == target_pos {
set_switch_var_offset(
code,
index_loc,
lower_bound_clause_start - index_loc,
target_pos_clause_start - index_loc,
retraction_info,
);
}
skeleton.clauses[target_pos - 1].clause_start
target_pos_clause_start // skeleton.clauses[target_pos - 1].clause_start
}
_ => {
skeleton.clauses[target_pos].opt_arg_index_key += clause_loc;

8
src/machine/machine_state_impl.rs
View File

@@ -162,6 +162,14 @@ impl MachineState {
}
fn bind_with_occurs_check(&mut self, r: Ref, addr: Addr) {
if let Ref::StackCell(..) = r {
// local variable optimization -- r cannot occur in the
// data structure bound to addr, so don't bother
// traversing it.
self.bind(r, addr);
return;
}
let mut fail = false;
for addr in self.acyclic_pre_order_iter(addr) {