rishi/scryer-prolog
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remove cyclic_term/1

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This commit is contained in:
Mark Thom
2020-02-27 16:19:48 -07:00
parent 993c6f0e7b
commit 934f73f696
2 changed files with 0 additions and 9 deletions
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4
src/prolog/clause_types.rs
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@@ -117,7 +117,6 @@ ref_thread_local! {
m.insert(("@>=", 2), ClauseType::BuiltIn(BuiltInClauseType::CompareTerm(CompareTermQT::GreaterThanOrEqual)));
m.insert(("@=<", 2), ClauseType::BuiltIn(BuiltInClauseType::CompareTerm(CompareTermQT::LessThanOrEqual)));
m.insert(("copy_term", 2), ClauseType::BuiltIn(BuiltInClauseType::CopyTerm));
m.insert(("cyclic_term", 1), ClauseType::BuiltIn(BuiltInClauseType::CyclicTerm));
m.insert(("==", 2), ClauseType::BuiltIn(BuiltInClauseType::Eq));
m.insert(("functor", 3), ClauseType::BuiltIn(BuiltInClauseType::Functor));
m.insert(("ground", 1), ClauseType::BuiltIn(BuiltInClauseType::Ground));
@@ -538,7 +537,6 @@ pub enum BuiltInClauseType {
Arg,
Compare,
CompareTerm(CompareTermQT),
CyclicTerm,
CopyTerm,
Eq,
Functor,
@@ -569,7 +567,6 @@ impl BuiltInClauseType {
&BuiltInClauseType::Arg => clause_name!("arg"),
&BuiltInClauseType::Compare => clause_name!("compare"),
&BuiltInClauseType::CompareTerm(qt) => clause_name!(qt.name()),
&BuiltInClauseType::CyclicTerm => clause_name!("cyclic_term"),
&BuiltInClauseType::CopyTerm => clause_name!("copy_term"),
&BuiltInClauseType::Eq => clause_name!("=="),
&BuiltInClauseType::Functor => clause_name!("functor"),
@@ -589,7 +586,6 @@ impl BuiltInClauseType {
&BuiltInClauseType::Arg => 3,
&BuiltInClauseType::Compare => 2,
&BuiltInClauseType::CompareTerm(_) => 2,
&BuiltInClauseType::CyclicTerm => 1,
&BuiltInClauseType::CopyTerm => 2,
&BuiltInClauseType::Eq => 2,
&BuiltInClauseType::Functor => 3,

5
src/prolog/machine/machine_state.rs
View File

@@ -711,11 +711,6 @@ pub(crate) trait CallPolicy: Any {
machine_st.compare_term(qt);
return_from_clause!(machine_st.last_call, machine_st)
}
&BuiltInClauseType::CyclicTerm => {
let addr = machine_st[temp_v!(1)].clone();
machine_st.fail = !machine_st.is_cyclic_term(addr);
return_from_clause!(machine_st.last_call, machine_st)
}
&BuiltInClauseType::Nl => {
let mut stdout = stdout();