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| author | Niko Matsakis <niko@alum.mit.edu> | 2012-07-13 18:43:47 -0700 |
|---|---|---|
| committer | Niko Matsakis <niko@alum.mit.edu> | 2012-07-14 17:37:19 -0700 |
| commit | 1fbb9d035ddd0c9ae56a91167fda2f100c3987ad (patch) | |
| tree | 15c47f32d2e6346505dbf6f59bd1944039969c39 /src/libstd/map.rs | |
| parent | 6822ec3eb4cb39a3a075b8373fcc974424ef63e8 (diff) | |
| download | rust-1fbb9d035ddd0c9ae56a91167fda2f100c3987ad.tar.gz rust-1fbb9d035ddd0c9ae56a91167fda2f100c3987ad.zip | |
improve failure message when key is not present
Diffstat (limited to 'src/libstd/map.rs')
| -rw-r--r-- | src/libstd/map.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libstd/map.rs b/src/libstd/map.rs index bce843224d1..90ca5e23372 100644 --- a/src/libstd/map.rs +++ b/src/libstd/map.rs @@ -237,7 +237,10 @@ mod chained { } fn get(k: K) -> V { - self.find(k).expect(~"Key not found in table") + alt self.find(k) { + some(v) => {v} + none => {fail #fmt["Key not found in table: %?", k]} + } } fn [](k: K) -> V { |