wehub-resource-sync
68 lines
1.6 KiB
Lua
68 lines
1.6 KiB
Lua
local table_merge = require("kong.tools.table").table_merge
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--- Utilities for Lua tables.
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--
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-- @module kong.table
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---
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-- Returns a table with a pre-allocated number of slots in its array and hash
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-- parts.
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--
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-- @function kong.table.new
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-- @tparam[opt] number narr Specifies the number of slots to pre-allocate
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-- in the array part.
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-- @tparam[opt] number nrec Specifies the number of slots to pre-allocate in
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-- the hash part.
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-- @treturn table The newly created table.
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-- @usage
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-- local tab = kong.table.new(4, 4)
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local new_tab = require "table.new"
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---
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-- Clears all array and hash parts entries from a table.
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--
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-- @function kong.table.clear
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-- @tparam table tab The table to be cleared.
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-- @return Nothing.
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-- @usage
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-- local tab = {
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-- "hello",
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-- foo = "bar"
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-- }
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--
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-- kong.table.clear(tab)
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--
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-- kong.log(tab[1]) -- nil
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-- kong.log(tab.foo) -- nil
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local clear_tab = require "table.clear"
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--- Merges the contents of two tables together, producing a new one.
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-- The entries of both tables are copied non-recursively to the new one.
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-- If both tables have the same key, the second one takes precedence.
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-- If only one table is given, it returns a copy.
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-- @function kong.table.merge
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-- @tparam[opt] table t1 The first table.
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-- @tparam[opt] table t2 The second table.
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-- @treturn table The (new) merged table.
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-- @usage
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-- local t1 = {1, 2, 3, foo = "f"}
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-- local t2 = {4, 5, bar = "b"}
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-- local t3 = kong.table.merge(t1, t2) -- {4, 5, 3, foo = "f", bar = "b"}
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local merge_tab = table_merge
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local function new(self)
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return {
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new = new_tab,
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clear = clear_tab,
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merge = merge_tab,
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}
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end
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return {
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new = new,
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}
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