tseeker-pub/rust-crafting-interpreters-part-1
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Resolver - Fixed off-by-one error in resolve_local()

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Emmanuel BENOîT 2023-01-05 07:06:27 +01:00
parent 79a0667f34
commit b5573cee3b
1 changed files with 2 additions and 3 deletions
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5
src/resolver.rs
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@ -65,14 +65,13 @@ impl ResolverState {
} }
fn resolve_local(&mut self, expr: &ast::ExprNode, name: &Token) { fn resolve_local(&mut self, expr: &ast::ExprNode, name: &Token) {
let start = self.scopes.len() - 1; let mut i = self.scopes.len();
let mut i = start;
while i != 0 { while i != 0 {
i -= 1;
if self.scopes[i].contains_key(&name.lexeme as &str) { if self.scopes[i].contains_key(&name.lexeme as &str) {
self.mark_resolved(expr, self.scopes.len() - 1 - i); self.mark_resolved(expr, self.scopes.len() - 1 - i);
return; return;
} }
i -= 1;
} }
} }