| require("import") -- the import fn |
| import("extend") -- import lib into global |
| e=extend --alias |
| |
| -- catching undefined variables |
| local env = _ENV -- Lua 5.2 |
| if not env then env = getfenv () end -- Lua 5.1 |
| setmetatable(env, {__index=function (t,i) error("undefined global variable `"..i.."'",2) end}) |
| |
| base1 = e.Base() |
| assert(base1.value == 0) |
| base2 = e.Base(10) |
| assert(base2.value == 10) |
| |
| assert(base1:method(5) == 5) |
| assert(e.Base.zeroVal() == 0) |
| assert(base2:currentValue() == 10) |
| assert(base2:extendmethod(7) == 14) |
| |
| der1 = e.Derived(0) |
| assert(der1.value == 0) |
| assert(der1:method(5) == 10) |
| |
| der2 = e.Derived(17) |
| assert(der2.value == 34) |
| der2.extendval = 200.0 |
| assert(math.abs(der2.actualval - 2.0) < 0.001) |
| assert(math.abs(der2.extendval - 200.0) < 0.001) |
