rishi/scryer-prolog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

match on partial strings through get_list

Browse Source
This commit is contained in:
Mark Thom
2018-09-24 19:53:51 -06:00
parent bf84edce59
commit 23eed192e9
3 changed files with 46 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/prolog/machine/machine_state.rs
View File

@@ -1,4 +1,5 @@
use prolog_parser::ast::*;
use prolog_parser::string_list::*;
use prolog_parser::tabled_rc::*;
use prolog::instructions::*;
@@ -248,6 +249,7 @@ pub struct MachineState {
pub(super) or_stack: OrStack,
pub(super) registers: Registers,
pub(super) trail: Vec<Ref>,
pub(super) partial_string_trail: Vec<(StringList, usize)>,
pub(super) tr: usize,
pub(super) hb: usize,
pub(super) block: usize, // an offset into the OR stack.
@@ -299,7 +301,6 @@ pub(crate) trait CallPolicy: Any {
machine_st.heap.truncate(machine_st.or_stack[b].h);
machine_st.hb = machine_st.heap.h;
machine_st.p += 1;
Ok(())
@@ -329,7 +330,6 @@ pub(crate) trait CallPolicy: Any {
machine_st.heap.truncate(machine_st.or_stack[b].h);
machine_st.hb = machine_st.heap.h;
machine_st.p += offset;
Ok(())