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Add operator type inspections #10

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Benjamin-Dobell opened this issue Jul 31, 2020 · 1 comment

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Benjamin-Dobell commented Jul 31, 2020 •

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Operators (in particular arithmetic operators) should ensure their operands are covariant of number.

The following certainly shouldn't be allowed:

---@type boolean
local aBoolean = true + true -- Illegal

However, non-arithmetic operators should also be checked for compatibility e.g.

---@type number
local a = 1

---@type number
local length = #a -- Illegal

adriweb commented Jul 31, 2020 via email

Be careful when dealing overloaded operators, though :)

Benjamin-Dobell added the enhancement label

Benjamin-Dobell mentioned this issue

Missing Operators kerwanp/core-types-generator#5

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