From: Matthew Wild <mwild1@gmail.com>
Date: Mon, 5 Oct 2009 13:38:04 +0000 (+0100)
Subject: util.array: Per-array methods now always mutate the array, array.* return a mutated... 
X-Git-Url: https://git.enpas.org/?a=commitdiff_plain;h=4ac119e7af89cd0003f32427b69314bec147ecb6;p=prosody.git

util.array: Per-array methods now always mutate the array, array.* return a mutated copy, and most methods (e.g. sort) now return the array
---

diff --git a/util/array.lua b/util/array.lua
index bbf26f32..ae3a0b5b 100644
--- a/util/array.lua
+++ b/util/array.lua
@@ -33,22 +33,11 @@ function array_base.map(outa, ina, func)
 end
 
 function array_base.filter(outa, ina, func)
-	local inplace, start_length = ina == outa, #ina;
-	local write = 1;
-	for read=1,start_length do
-		local v = ina[read];
+	for k,v in ipairs(ina) do
 		if func(v) then
-			outa[write] = v;
-			write = write + 1;
-		end
-	end
-	
-	if inplace and write < start_length then
-		for i=write,start_length do
-			outa[i] = nil;
+			outa:push(v);
 		end
 	end
-	
 	return outa;
 end