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Tighten some code

This commit is contained in:
greg 2018-03-08 00:32:19 -08:00
parent 76fadf0701
commit 59d621ed75
1 changed files with 2 additions and 3 deletions
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5
src/schala_lang/eval.rs
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@ -175,14 +175,13 @@ impl<'a> State<'a> {
}
self.eval_application(*f, evaled_arguments)
},
Index { box indexee, mut indexers } => {
Index { box indexee, indexers } => {
let evaled = self.eval_expr(indexee)?;
match evaled {
Tuple(mut exprs) => {
let len = indexers.len();
if len == 1 {
indexers.truncate(1);
let idx = indexers.pop().unwrap();
let idx = indexers.into_iter().nth(0).unwrap();
match self.eval_expr(idx)? {
UnsignedInt(n) if (n as usize) < exprs.len() => Ok(exprs.drain(n as usize..).next().unwrap()),
UnsignedInt(n) => Err(format!("Index {} out of range", n)),