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add comparisons between partial strings and string constants (#263)

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This commit is contained in:
Mark Thom
2020-02-22 00:51:27 -07:00
parent 545472f9c4
commit 003b4d0218
3 changed files with 16 additions and 3 deletions
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6
src/prolog/machine/machine_state.rs
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@@ -538,8 +538,8 @@ pub(crate) trait CallPolicy: Any {
attr_var_init_bindings_b,
);
machine_st.stack.truncate(machine_st.b);
machine_st.b = machine_st.stack.index_or_frame(b).prelude.b;
machine_st.stack.truncate(b);
machine_st.hb = machine_st.heap.h();
machine_st.p += offset;
@@ -578,8 +578,8 @@ pub(crate) trait CallPolicy: Any {
attr_var_init_bindings_b,
);
machine_st.stack.truncate(machine_st.b);
machine_st.b = machine_st.stack.index_or_frame(b).prelude.b;
machine_st.stack.truncate(b);
machine_st.hb = machine_st.heap.h();
machine_st.p += 1;
@@ -1032,7 +1032,7 @@ impl CWILCallPolicy {
pub(crate) trait CutPolicy: Any {
// returns true iff we fail or cut redirected the MachineState's p itself
fn cut(&mut self, _: &mut MachineState, _: RegType) -> bool;
fn cut(&mut self, machine_st: &mut MachineState, r: RegType) -> bool;
}
downcast!(dyn CutPolicy);