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authorWilliam Boman <william@redwill.se>2022-07-08 18:34:38 +0200
committerGitHub <noreply@github.com>2022-07-08 18:34:38 +0200
commit976aa4fbee8a070f362cab6f6ec84e9251a90cf9 (patch)
tree5e8d9c9c59444a25c7801b8f39763c4ba6e1f76d /lua/mason-core/functional/logic.lua
parentfeat: add gotests, gomodifytags, impl (#28) (diff)
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refactor: add mason-schemas and mason-core modules (#29)
* refactor: add mason-schemas and move generated filetype map to mason-lspconfig * refactor: add mason-core module
Diffstat (limited to 'lua/mason-core/functional/logic.lua')
-rw-r--r--lua/mason-core/functional/logic.lua63
1 files changed, 63 insertions, 0 deletions
diff --git a/lua/mason-core/functional/logic.lua b/lua/mason-core/functional/logic.lua
new file mode 100644
index 00000000..0e0044d5
--- /dev/null
+++ b/lua/mason-core/functional/logic.lua
@@ -0,0 +1,63 @@
+local fun = require "mason-core.functional.function"
+
+local _ = {}
+
+---@generic T
+---@param predicates (fun(item: T): boolean)[]
+---@return fun(item: T): boolean
+_.all_pass = fun.curryN(function(predicates, item)
+ for i = 1, #predicates do
+ if not predicates[i](item) then
+ return false
+ end
+ end
+ return true
+end, 2)
+
+---@generic T
+---@param predicates (fun(item: T): boolean)[]
+---@return fun(item: T): boolean
+_.any_pass = fun.curryN(function(predicates, item)
+ for i = 1, #predicates do
+ if predicates[i](item) then
+ return true
+ end
+ end
+ return false
+end, 2)
+
+---@generic T
+---@param predicate fun(item: T): boolean
+---@param on_true fun(item: T): any
+---@param on_false fun(item: T): any
+---@param value T
+_.if_else = fun.curryN(function(predicate, on_true, on_false, value)
+ if predicate(value) then
+ return on_true(value)
+ else
+ return on_false(value)
+ end
+end, 4)
+
+---@param value boolean
+_.is_not = function(value)
+ return not value
+end
+
+---@generic T
+---@param predicate fun(value: T): boolean
+---@param value T
+_.complement = fun.curryN(function(predicate, value)
+ return not predicate(value)
+end, 2)
+
+_.cond = fun.curryN(function(predicate_transformer_pairs, value)
+ for _, pair in ipairs(predicate_transformer_pairs) do
+ local predicate, transformer = pair[1], pair[2]
+ if predicate(value) then
+ return transformer(value)
+ end
+ end
+end, 2)
+
+return _