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authorNanoTech2016-12-12 02:24:15 +0000
committerNanoTech2017-03-10 23:48:29 -0600
commiteca97e7b04ce5c02ffeef3fa0f1c4da5c4d25a26 (patch)
tree4d67340f051f98659bb96ae6039f469acc53060b
parent490070cbb26d0853c6011407d8d72f0075fd7322 (diff)
Fix context lookup order
The most recent item, with context index 0, is at the end of the Vec.
-rw-r--r--src/context.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/context.rs b/src/context.rs
index b72182d..9fb3bf4 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -30,7 +30,7 @@ impl<'i, T> Context<'i, T> {
/// lookup k n (insert j v c) = lookup k n c -- k /= j
/// ```
pub fn lookup<'a>(&'a self, k: &str, n: usize) -> Option<&'a T> {
- self.0.get(k).and_then(|v| v.get(n))
+ self.0.get(k).and_then(|v| v.get(v.len() - 1 - n))
}
pub fn map<U, F: Fn(&T) -> U>(&self, f: F) -> Context<'i, U> {