rishi/scryer-prolog
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add ground/1.

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This commit is contained in:
Mark Thom
2018-02-08 23:51:05 -07:00
parent df3e8b8fce
commit 9c1b48865b
11 changed files with 166 additions and 13 deletions
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8
src/prolog/iterators.rs
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@@ -60,6 +60,10 @@ impl<'a> QueryIterator<'a> {
let state = TermIterState::Clause(0, ClauseType::Display, terms);
QueryIterator { state_stack: vec![state] }
},
&QueryTerm::Ground(ref terms) => {
let state = TermIterState::Clause(0, ClauseType::Ground, terms);
QueryIterator { state_stack: vec![state] }
},
&QueryTerm::Inlined(InlinedQueryTerm::CompareNumber(qt, ref terms)) => {
let state = TermIterState::Clause(0, ClauseType::CompareNumber(qt), terms);
QueryIterator { state_stack: vec![state] }
@@ -317,7 +321,7 @@ impl<'a> ChunkedIterator<'a>
arity = child_terms.len();
break;
},
&QueryTerm::Display(_) => {
&QueryTerm::Ground(_) | &QueryTerm::Display(_) => {
result.push(term);
arity = 1;
break;
@@ -341,7 +345,7 @@ impl<'a> ChunkedIterator<'a>
if self.term_loc.chunk_num() > 0 {
self.deep_cut_encountered = true;
}
},
},
};
item = self.iter.next();