Lua

A surprising lua parse error

17/06/2025 · 1 minute

While working on my lua VM, I encountered the following parse error: lune> function f() local x<const> x = nil 2: local x<const> 3: x = nil ^ error: AssignToConst This error surprised me because the input is not parsable because the body of the function is never closed with an end. In the REPL of this VM, the parser is run every time a new line is added to see whether or not it …