Naturally, the main catch is that this only detects the violation at run-time. I... | Hacker News

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ufo 11 months ago | parent | context | favorite | on: The evolution of Lua, continued [pdf]

Naturally, the main catch is that this only detects the violation at run-time. It also won't stop you from accidentally overwriting a global variable that already exists.

nmz 11 months ago | [–]

> It also won't stop you from accidentally overwriting a global variable that already exists.

That's also solvable using metatables.

Dylan16807 11 months ago | [–]

Do the declarations in 5.5 prevent overwriting? That sounds tricky to define and implement.

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