add display predicate

2018-01-14 22:11:02 -07:00
parent 58ba368280
commit 08b94dcdf5
9 changed files with 80 additions and 32 deletions
--- a/src/prolog/codegen.rs
+++ b/src/prolog/codegen.rs
@@ -247,6 +247,8 @@ impl<'a, TermMarker: Allocator<'a>> CodeGenerator<'a, TermMarker>
            },
            &QueryTerm::Catch(_) =>
                code.push(Line::Control(ControlInstruction::CatchCall)),
+            &QueryTerm::Display(_) =>
+                code.push(Line::Control(ControlInstruction::DisplayCall)),
            &QueryTerm::Functor(_) =>
                code.push(Line::Control(ControlInstruction::FunctorCall)),            
            &QueryTerm::Inlined(_) =>
@@ -281,6 +283,8 @@ impl<'a, TermMarker: Allocator<'a>> CodeGenerator<'a, TermMarker>
                        *ctrl = ControlInstruction::Execute(name, arity),
                    ControlInstruction::CallN(arity) =>
                        *ctrl = ControlInstruction::ExecuteN(arity),
+                    ControlInstruction::DisplayCall =>
+                        *ctrl = ControlInstruction::DisplayExecute,
                    ControlInstruction::FunctorCall =>
                        *ctrl = ControlInstruction::FunctorExecute,
                    ControlInstruction::CatchCall =>