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std.strict NEWS - User visible changes

Noteworthy changes in release ?.? (????-??-??) [?]

Noteworthy changes in release 1.4.1 (2026-07-25) [stable]

New Features

  • Initial support for Lua 5.5.

Noteworthy changes in release 1.4 (2023-01-07) [stable]

New Features

  • Support importing into another project directly with:

    $ cp ../strict/lib/std/strict/init.lua lib/std/strict.lua

Noteworthy changes in release 1.3.2 (2018-09-23) [stable]

New Features

  • Initial support for Lua 5.4.

Noteworthy changes in release 1.3.1 (2017-10-14) [stable]

Documentation changes

  • removed references to _DEBUG and require 'std.debug_init'; for completeness, with a modern version of 'std._debug' you could:

    local _ENV = setmetatable({}, {__index=_G})
if require 'std._debug'.strict == true then
   _ENV = require 'std.strict'.strict(_ENV)
end
if rawget(_G, 'setfenv') ~= nil then
   setfenv(1, _ENV)
end

    ...or you could just let the 'std.normalize' library take care of all this for you!

Noteworthy changes in release 1.3 (2017-09-17) [stable]

Bug Fixes

  • where available, use setfenv to enforce _ENV table.

Noteworthy changes in release 1.2 (2017-02-04) [stable]

New features

  • Builds and installs with luke instead of Make.

  • In order to support __call responses from deeper in the call stack, accept an optional level argument.

Noteworthy changes in release 1.1 (2016-04-10) [stable]

New features

  • Strict environments created by this module now correctly proxy len and pairs calls to the environment table.

    Note that ipairs works by looking for the first numeric key with a nil value, and a nil valued key in the environment table is the exact criterion for an undeclared variable access. This means that passing a strict environment table to ipairs always triggers an 'assignment to undeclared variable <#env + 1>' error.

Incompatible changes

  • To avoid clashing with PUC-Rio strict.lua, rename this package to std.strict. You should change client packages to load from its new location:

    local strict = require 'std.strict'

  • To minimise the number of places the release number needs to be updated, the std.strict._VERSION constant has been replaced by a generated std.strict.version submodule.

Noteworthy changes in strict release 1.0 (2016-01-19) [stable]

New features

  • Initial release, now separated out from lua-stdlib.

Incompatible changes

  • The standalone implementation no longer requires or is affected by the value of std.debug_init._DEBUG.strict. If you still want to do that you can write:

    local strict = require 'strict'
local _DEBUG = require 'std.debug_init'._DEBUG

local _ENV = _ENV
if nil ~= (_DEBUG or {}).strict then
   _ENV = strict.strict(_ENV)
end
if rawget(_G, 'setfenv') ~= nil then
   setfenv(1, _ENV)
end