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detect character type errors in atom_{chars|codes}/2 (#1472)

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This commit is contained in:
Mark Thom
2022-05-16 16:32:38 -06:00
parent e8eb6765bd
commit b96cd06129
1 changed files with 5 additions and 1 deletions
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6
src/lib/builtins.pl
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@@ -1258,10 +1258,12 @@ atom_chars(Atom, List) :-
( var(Tail) ->
throw(error(instantiation_error, atom_chars/2))
; ground(List) ->
chars_or_vars(List, atom_chars/2),
'$atom_chars'(Atom, List)
; throw(error(instantiation_error, atom_chars/2))
)
; atom(Atom) ->
chars_or_vars(List, atom_chars/2),
'$atom_chars'(Atom, List)
; throw(error(type_error(atom, Atom), atom_chars/2))
).
@@ -1275,11 +1277,13 @@ atom_codes(Atom, List) :-
( var(Atom) ->
( var(Tail) ->
throw(error(instantiation_error, atom_codes/2))
; ground(List), Tail == [] ->
; ground(List) ->
codes_or_vars(List, atom_codes/2),
'$atom_codes'(Atom, List)
; throw(error(instantiation_error, atom_codes/2))
)
; atom(Atom) ->
codes_or_vars(List, atom_codes/2),
'$atom_codes'(Atom, List)
; throw(error(type_error(atom, Atom), atom_codes/2))
).