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add slightly more descriptive syntax errors

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This commit is contained in:
Mark Thom
2018-08-30 00:35:42 -06:00
parent 872b153b08
commit ebd62a2c91
3 changed files with 69 additions and 24 deletions
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6
src/prolog/machine/machine_state.rs
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@@ -601,10 +601,10 @@ pub(crate) trait CallPolicy: Any {
let addr = reader.machine_st[temp_v!(1)].clone();
reader.machine_st.unify(addr, Addr::HeapCell(offset));
},
Err(_) => {
// 8.14.1.3 k)-l)
Err(e) => {
let h = reader.machine_st.heap.h;
let stub = MachineError::functor_stub(clause_name!("read"), 1);
let err = MachineError::syntax_error(SyntaxError::ImpDepAtom);
let err = MachineError::syntax_error(h, e);
let err = reader.machine_st.error_form(err, stub);
return Err(err);