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DynASM: Lua 5.2 compatibility fixes.

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This commit is contained in:
Mike Pall 2012-02-17 11:40:18 +01:00
parent ff71394931
commit 6c05739684
2 changed files with 11 additions and 3 deletions
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2
dynasm/dasm_x86.lua
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@ -23,7 +23,7 @@ local _M = { _info = _info }
-- Cache library functions.
local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
local assert, unpack, setmetatable = assert, unpack, setmetatable
local assert, unpack, setmetatable = assert, unpack or table.unpack, setmetatable
local _s = string
local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
local find, match, gmatch, gsub = _s.find, _s.match, _s.gmatch, _s.gsub

12
dynasm/dynasm.lua
View File

@ -259,9 +259,17 @@ local condstack = {}
-- Evaluate condition with a Lua expression. Substitutions already performed.
local function cond_eval(cond)
local func, err = loadstring("return "..cond)
local func, err
if setfenv then
func, err = loadstring("return "..cond, "=expr")
else
-- No globals. All unknown identifiers evaluate to nil.
func, err = load("return "..cond, "=expr", "t", {})
end
if func then
setfenv(func, {}) -- No globals. All unknown identifiers evaluate to nil.
if setfenv then
setfenv(func, {}) -- No globals. All unknown identifiers evaluate to nil.
end
local ok, res = pcall(func)
if ok then
if res == 0 then return false end -- Oh well.