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eliminate need for embedded, handwritten WAM code.

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This commit is contained in:
Mark Thom
2018-05-09 22:58:23 -06:00
parent b09c20670b
commit bae107f8cd
13 changed files with 550 additions and 943 deletions
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8
src/prolog/toplevel.rs
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@@ -233,7 +233,7 @@ fn unfold_by_str(mut term: Term, s: &str) -> Vec<Term>
terms.push(fst);
term = snd;
}
terms.push(term);
terms
}
@@ -397,10 +397,8 @@ impl RelationWorker {
},
Term::Var(_, ref v) if v.as_str() == "!" =>
Ok(QueryTerm::UnblockedCut(Cell::default())),
Term::Clause(r, name, mut terms, fixity) =>
if let Some(system_ct) = SystemClauseType::from(name.as_str(), terms.len()) {
Ok(QueryTerm::Clause(r, ClauseType::System(system_ct), terms))
} else if name.as_str() == ";" {
Term::Clause(r, name, mut terms, fixity) =>
if name.as_str() == ";" {
if terms.len() == 2 {
let term = Term::Clause(r, name.clone(), terms, fixity);
let (stub, clauses) = self.fabricate_disjunct(term);