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| author | Klaus Aehlig <klaus.aehlig@huawei.com> | 2023-08-14 12:13:05 +0200 |
|---|---|---|
| committer | Klaus Aehlig <klaus.aehlig@huawei.com> | 2023-08-14 12:43:35 +0200 |
| commit | cbe7bde952b4ed5d910e9a152f953ba172c5f654 (patch) | |
| tree | 729f58fb6f26fe5b906e822d58030fb9a399e5dd /doc/concepts | |
| parent | 726e70cb9bf544ee3164e32405e4dd4f750c0403 (diff) | |
| download | justbuild-cbe7bde952b4ed5d910e9a152f953ba172c5f654.tar.gz | |
expression: add new built in "reverse"
While a foldl is enough to implement a reverse functionality,
adding it as a built in allows doing so in linear time.
Diffstat (limited to 'doc/concepts')
| -rw-r--r-- | doc/concepts/expressions.md | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/concepts/expressions.md b/doc/concepts/expressions.md index c66de8bc..dcd567af 100644 --- a/doc/concepts/expressions.md +++ b/doc/concepts/expressions.md @@ -253,6 +253,9 @@ those) argument(s) to obtain the final result. a map with the members of the list as keys, and all values being `true`. +- `"reverse"` The argument has to be a list. The result is a new list + with the entries in reverse order. + - `"++"` The argument has to be a list of lists. The result is the concatenation of those lists. |