Change Option<usize> to usize for variable resolver index.

2020-10-11 22:41:26 +08:00
parent fd5a932611
commit e343bcfa8f
8 changed files with 68 additions and 29 deletions
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -745,7 +745,7 @@ impl Engine {
                this_ptr,
                level: 0,
            };
-            if let Some(result) = resolve_var(name, index.map(|v| v.get()), scope, &context)
+            if let Some(result) = resolve_var(name, index.map_or(0, |v| v.get()), scope, &context)
                .map_err(|err| err.fill_position(*pos))?
            {
                return Ok((result.into(), name, ScopeEntryType::Constant, *pos));