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add expand_term/2

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This commit is contained in:
Mark Thom
2018-10-15 20:07:22 -06:00
parent 24a7206021
commit eabb851d8c
4 changed files with 10 additions and 1 deletions
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3
src/prolog/instructions.rs
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@@ -217,6 +217,7 @@ pub struct Module {
#[derive(Copy, Clone, PartialEq)]
pub enum SystemClauseType {
CheckCutPoint,
ExpandTerm,
GetBValue,
GetSCCCleaner,
InstallSCCCleaner,
@@ -252,6 +253,7 @@ impl SystemClauseType {
pub fn name(&self) -> ClauseName {
match self {
&SystemClauseType::CheckCutPoint => clause_name!("$check_cp"),
&SystemClauseType::ExpandTerm => clause_name!("$expand_term"),
&SystemClauseType::GetBValue => clause_name!("$get_b_value"),
&SystemClauseType::GetDoubleQuotes => clause_name!("$get_double_quotes"),
&SystemClauseType::GetSCCCleaner => clause_name!("$get_scc_cleaner"),
@@ -286,6 +288,7 @@ impl SystemClauseType {
pub fn from(name: &str, arity: usize) -> Option<SystemClauseType> {
match (name, arity) {
("$check_cp", 1) => Some(SystemClauseType::CheckCutPoint),
("$expand_term", 2) => Some(SystemClauseType::ExpandTerm),
("$get_b_value", 1) => Some(SystemClauseType::GetBValue),
("$get_double_quotes", 1) => Some(SystemClauseType::GetDoubleQuotes),
("$get_scc_cleaner", 1) => Some(SystemClauseType::GetSCCCleaner),