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boyned//Kampfkarren 2021-11-05 15:00:48 -07:00
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rfcs/syntax-safe-navigation-operator.md
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@ -92,7 +92,16 @@ local value = x?
This syntax would be based on expressions, and not identifiers, meaning that `(x or y)?.call()` would be valid syntax.
The type of an expression using the nil-safety operator would simply resolve to the expression, nillable. Meaning if `dog.name` was a `string`, then `dog?.name` would be `string?`.
### Type
If the expression is typed as an optional, then the resulting type would be the final expression, also optional. Otherwise, it'll just be the resulting type if `?` wasn't used.
```lua
local optionalObject: { name: string }?
local optionalObjectName = optionalObject?.name -- resolves to `string?`
local nonOptionalObject: { name: string }
local nonOptionalObjectName = nonOptionalObject?.name -- resolves to `string`
```
## Drawbacks