rishi/scryer-prolog
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Remove unnecessary mutability

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This commit is contained in:
Anton Kochkov
2019-05-08 14:09:33 +08:00
parent 6240f04769
commit 580dc761d5
6 changed files with 9 additions and 9 deletions
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6
src/prolog/machine/system_calls.rs
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@@ -1079,7 +1079,7 @@ impl MachineState {
self.truncate_if_no_lifted_heap_diff(|_| Addr::Con(Constant::EmptyList)),
&SystemClauseType::GetAttributedVariableList => {
let attr_var = self.store(self.deref(self[temp_v!(1)].clone()));
let mut attr_var_list = match attr_var {
let attr_var_list = match attr_var {
Addr::AttrVar(h) => h + 1,
attr_var @ Addr::HeapCell(_) | attr_var @ Addr::StackCell(..) => {
// create an AttrVar in the heap.
@@ -1322,7 +1322,7 @@ impl MachineState {
};
},
&SystemClauseType::RedoAttrVarBindings => {
let mut bindings = mem::replace(&mut self.attr_var_init.bindings, vec![]);
let bindings = mem::replace(&mut self.attr_var_init.bindings, vec![]);
for (h, addr) in bindings {
self.heap[h] = HeapCellValue::Addr(addr);
@@ -1707,7 +1707,7 @@ impl MachineState {
return Err(err)
}
let mut output = printer.print(addr);
let output = printer.print(addr);
print!("{}", output.result());
stdout().flush().unwrap();
}