diff options
Diffstat (limited to 'third_party/bazel/rules_haskell/haskell/private/list.bzl')
| -rw-r--r-- | third_party/bazel/rules_haskell/haskell/private/list.bzl | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/third_party/bazel/rules_haskell/haskell/private/list.bzl b/third_party/bazel/rules_haskell/haskell/private/list.bzl deleted file mode 100644 index 14ffd5f068..0000000000 --- a/third_party/bazel/rules_haskell/haskell/private/list.bzl +++ /dev/null @@ -1,26 +0,0 @@ -"""Helper functions on lists.""" - -load(":private/set.bzl", "set") - -def _dedup_on(f, list_): - """deduplicate `list_` by comparing the result of applying - f to each element (e.g. comparing sub fields) - - def compare_x(el): - return el.x - - dedup_on([struct(x=3), struct(x=4), struct(x=3)], compare_x) - => [struct(x=3), struct(x=4)] - """ - seen = set.empty() - deduped = [] - for el in list_: - by = f(el) - if not set.is_member(seen, by): - set.mutable_insert(seen, by) - deduped.append(el) - return deduped - -list = struct( - dedup_on = _dedup_on, -) |