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68 lines
2.1 KiB
68 lines
2.1 KiB
-- ------------------------------------------------------------------------------ --
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-- TradeSkillMaster --
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-- https://tradeskillmaster.com --
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-- All Rights Reserved - Detailed license information included with addon. --
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-- ------------------------------------------------------------------------------ --
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local TSM = select(2, ...) ---@type TSM
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local Vararg = TSM.Init("Util.Vararg") ---@class Util.Vararg
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local private = {
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iterTemp = {},
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}
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-- ============================================================================
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-- Module Functions
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-- ============================================================================
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---Stores a varag into a table.
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---@param tbl table The table to store the values in
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---@param ... any Zero or more values to store in the table
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function Vararg.IntoTable(tbl, ...)
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for i = 1, select("#", ...) do
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tbl[i] = select(i, ...)
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end
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end
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---Creates an iterator from a vararg.
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---
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---**NOTE:** This iterator must be run to completion and not be interrupted (i.e. with a `break` or `return`).
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---@param ... any The values to iterate over
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---@return fun(): number, any @An iterator with fields: `index, value`
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function Vararg.Iterator(...)
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local tbl = private.iterTemp
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assert(not tbl.inUse)
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tbl.inUse = true
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tbl.length = select("#", ...)
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Vararg.IntoTable(private.iterTemp, ...)
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return private.IteratorHelper, private.iterTemp, 0
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end
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---Returns whether not the value exists within the vararg.
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---@param value any The value to search for
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---@param ... any Any number of values to search in
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---@return boolean @Whether or not the value was found in the vararg
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function Vararg.In(value, ...)
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for i = 1, select("#", ...) do
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if value == select(i, ...) then
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return true
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end
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end
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return false
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end
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-- ============================================================================
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-- Private Helper Functions
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-- ============================================================================
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function private.IteratorHelper(tbl, index)
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index = index + 1
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if index > tbl.length then
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wipe(tbl)
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return
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end
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return index, tbl[index]
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end
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