From c624623efe934779df4dc6896515bc20a73294ca Mon Sep 17 00:00:00 2001
From: Robin Wellner <robin@robinwell.net>
Date: Tue, 16 Feb 2016 02:08:07 +0100
Subject: [PATCH] add ability to load from raw data

see https://love2d.org/wiki/Data:getPointer
---
 bitser.lua           | 14 ++++++++++----
 spec/bitser_spec.lua |  3 +++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/bitser.lua b/bitser.lua
index f42d3f1..de58901 100644
--- a/bitser.lua
+++ b/bitser.lua
@@ -15,7 +15,11 @@ end
 local function Buffer_newReader(str)
 	local buf = ffi.new("uint8_t[?]", #str)
 	ffi.copy(buf, str, #str)
-	return {size = #str, pos = 0, buf = buf}
+	return {pos = 0, buf = buf}
+end
+
+local function Buffer_newDataReader(data)
+	return {pos = 0, buf = ffi.cast("uint8_t*", data)}
 end
 
 local function Buffer_reserve(self, additional_size)
@@ -307,10 +311,12 @@ local function deserialize_Slither(instance, class)
 	return getmetatable(class).allocate(instance)
 end
 
-return {dump = nil, dumps = function(value)
+return {dumps = function(value)
 	return ffi.string(serialize(value))
-end, load = nil, loads = function(value)
-	return deserialize(Buffer_newReader(value))
+end, loadData = function(data)
+	return deserialize(Buffer_newDataReader(data))
+end, loads = function(str)
+	return deserialize(Buffer_newReader(str))
 end, register = function(name, resource)
 	assert(not resource_registry[name], name .. " already registered")
 	resource_registry[name] = resource
diff --git a/spec/bitser_spec.lua b/spec/bitser_spec.lua
index 33fccae..7e8a3df 100644
--- a/spec/bitser_spec.lua
+++ b/spec/bitser_spec.lua
@@ -187,4 +187,7 @@ describe("bitser", function()
 		assert.has_error(function() bitser.loads("\254") end, "unsupported serialized type 254")
 		assert.has_error(function() bitser.loads("\255") end, "unsupported serialized type 255")
 	end)
+	it("can load from raw data", function()
+		assert.are.same(bitser.loadData(ffi.new("uint8[4]", 195, 103, 118, 120)), "gvx")
+	end)
 end)