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| author | William Boman <william@redwill.se> | 2022-12-19 11:41:58 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-19 10:41:58 +0000 |
| commit | 582fe9e53f192f7062c5811153916189e2301f23 (patch) | |
| tree | d87d134bc9db2df9937901fb948f42b23c8270ae /lua/mason-core | |
| parent | fix(functional): spread function args in _.apply (#770) (diff) | |
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feat(functional): add list.reduce (#772)
Diffstat (limited to 'lua/mason-core')
| -rw-r--r-- | lua/mason-core/functional/init.lua | 1 | ||||
| -rw-r--r-- | lua/mason-core/functional/list.lua | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/lua/mason-core/functional/init.lua b/lua/mason-core/functional/init.lua index dbb27ddd..ee185e8b 100644 --- a/lua/mason-core/functional/init.lua +++ b/lua/mason-core/functional/init.lua @@ -61,6 +61,7 @@ _.partition = list.partition _.take = list.take _.drop = list.drop _.drop_last = list.drop_last +_.reduce = list.reduce ---@module "mason-core.functional.relation" local relation = lazy_require "mason-core.functional.relation" diff --git a/lua/mason-core/functional/list.lua b/lua/mason-core/functional/list.lua index 7c66ccac..8c216c4d 100644 --- a/lua/mason-core/functional/list.lua +++ b/lua/mason-core/functional/list.lua @@ -257,4 +257,16 @@ _.drop_last = fun.curryN(function(n, list) return result end, 2) +---@generic T, U +---@param fn fun(acc: U, item: T): U +---@param acc U +---@param list T[] +---@return U +_.reduce = fun.curryN(function(fn, acc, list) + for i = 1, #list do + acc = fn(acc, list[i]) + end + return acc +end, 3) + return _ |