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| author | Klaus Aehlig <klaus.aehlig@huawei.com> | 2023-08-14 11:43:28 +0200 |
|---|---|---|
| committer | Klaus Aehlig <klaus.aehlig@huawei.com> | 2023-08-14 12:09:57 +0200 |
| commit | 726e70cb9bf544ee3164e32405e4dd4f750c0403 (patch) | |
| tree | 7e15485967af5f24852e30d54059b62a40e8928d /doc/concepts | |
| parent | 755360ab129879c8981c84262ef1f1d3e697a5e0 (diff) | |
| download | justbuild-726e70cb9bf544ee3164e32405e4dd4f750c0403.tar.gz | |
expression: add new built in "set"
... to obtain from a list of strings a map with those entries
as keys and true as value. In this way, repeated membership tests
in lists can be implemented more efficiently.
Diffstat (limited to 'doc/concepts')
| -rw-r--r-- | doc/concepts/expressions.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/concepts/expressions.md b/doc/concepts/expressions.md index b6aa0945..c66de8bc 100644 --- a/doc/concepts/expressions.md +++ b/doc/concepts/expressions.md @@ -249,6 +249,10 @@ those) argument(s) to obtain the final result. same iteration order as the list for all lists indexable by 32-bit integers. +- `"set"` The argument has to be a list of strings. The result is + a map with the members of the list as keys, and all values being + `true`. + - `"++"` The argument has to be a list of lists. The result is the concatenation of those lists. |