Dusk's ComputerCraft Snippets

safecall.lua

-- Call a function in an xpcall() wrapper.
local function safeCall(f,args)
    if not type(f) == "function" then
        return false, "[libcommon]: cannot safeCall "..f..": not a function"
    end

    local function errorHandle(errormsg)
        return false, "[libcommon]: exec error: "..errormsg
    end

    local status, result = xpcall(function() return f(table.unpack(args or {})) end, errorHandle)
    return status, result
end