bgfx/scripts/bgfx-idl.lua

-- Copyright 2019 云风 https://github.com/cloudwu . All rights reserved.
-- License (the same with bgfx) : https://github.com/bkaradzic/bgfx/blob/master/LICENSE

function doIdl()

	local idl     = require "idl"
	local codegen = require "codegen"

	assert(loadfile("bgfx.idl" , "t", idl))()

	codegen.nameconversion(idl.types, idl.funcs)

	local code_temp_include = [[
/*
 * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
 */

/*
 *
 * AUTO GENERATED! DO NOT EDIT!
 *
 */

$c99decl
/**/
typedef struct bgfx_interface_vtbl
{
	$interface_struct
} bgfx_interface_vtbl_t;
]]

	local code_temp_impl = [[
/*
 * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
 */

/*
 *
 * AUTO GENERATED! DO NOT EDIT!
 *
 */

$c99
/**/
BGFX_C_API bgfx_interface_vtbl_t* bgfx_get_interface(uint32_t _version)
{
	if (_version == BGFX_API_VERSION)
	{
		static bgfx_interface_vtbl_t s_bgfx_interface =
		{
			$interface_import
		};

		return &s_bgfx_interface;
	}

	return NULL;
}
]]

	local function codes()
		local temp = {}
		local action = {
			c99 = "\n",
			c99decl = "\n",
			interface_struct = "\n\t",
			interface_import = ",\n\t\t\t",
		}
		for k in pairs(action) do
			temp[k] = {}
		end
		for _, f in ipairs(idl.funcs) do
			for k in pairs(action) do
				table.insert(temp[k], (codegen["gen_"..k](f)))
			end
		end

		for k, ident in pairs(action) do
			temp[k] = table.concat(temp[k], ident)
		end

		return temp
	end

	local codes_tbl = codes()

	for filename, temp in pairs {
		["../include/bgfx/c99/bgfx.idl.h"] = code_temp_include ,
		["../src/bgfx.idl.inl"] = code_temp_impl } do

		print ("Generate " .. filename)
		local out = io.open(filename, "wb")
		out:write((temp:gsub("$([%l%d_]+)", codes_tbl)))
		out:close()
	end

	os.exit()
end