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| author | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2015-07-23T20·05+0200 |
|---|---|---|
| committer | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2015-07-23T20·05+0200 |
| commit | b83801f8b3b48f4d69414401c8a51724946a8666 (patch) | |
| tree | 912be85806c1d0ebc49dfafc0431eca0ee928655 /src/libexpr/json-to-value.cc | |
| parent | 14be783676adbb3517b2f73fee31c6f341575440 (diff) | |
Optimize small lists
The value pointers of lists with 1 or 2 elements are now stored in the list value itself. In particular, this makes the "concatMap (x: if cond then [(f x)] else [])" idiom cheaper.
Diffstat (limited to 'src/libexpr/json-to-value.cc')
| -rw-r--r-- | src/libexpr/json-to-value.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libexpr/json-to-value.cc b/src/libexpr/json-to-value.cc index 1892b0bac1af..0898b560911b 100644 --- a/src/libexpr/json-to-value.cc +++ b/src/libexpr/json-to-value.cc @@ -73,7 +73,7 @@ static void parseJSON(EvalState & state, const char * & s, Value & v) s++; state.mkList(v, values.size()); for (size_t n = 0; n < values.size(); ++n) - v.list.elems[n] = values[n]; + v.listElems()[n] = values[n]; } else if (*s == '{') { |