util/envload.lua
author Matthew Wild <mwild1@gmail.com>
Tue, 11 Oct 2022 11:37:55 +0100
changeset 12767 d26eefe98d09
parent 12580 d1aacc6a81ac
permissions -rw-r--r--
util.dbuffer: Add efficient shortcuts for discard() in certain cases If the buffer is already empty, nothing to do. If we're throwing away the whole buffer, we can just empty it and avoid read_chunk() (which in turn may collapse()). These shortcuts are much more efficient.
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-- Prosody IM
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-- Copyright (C) 2008-2011 Florian Zeitz
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--
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-- This project is MIT/X11 licensed. Please see the
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-- COPYING file in the source package for more information.
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--
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-- luacheck: ignore 113/setfenv 113/loadstring
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local load = load;
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local io_open = io.open;
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local function envload(code, source, env)
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	return load(code, source, nil, env);
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end
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local function envloadfile(file, env)
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	local fh, err, errno = io_open(file);
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	if not fh then return fh, err, errno; end
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	local f, err = load(fh:lines(2048), "@" .. file, nil, env);
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	fh:close();
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	return f, err;
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end
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return { envload = envload, envloadfile = envloadfile };