Prohibit named tuple keys called 'apply' #24188
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| untpd.Literal(Constant(nameIdx))), | ||
| pt) | ||
| if selName == nme.apply then | ||
| EmptyTree |
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What is the behavior of the following code now:
val boo: NamedTuple.NamedTuple[("_2", "apply"), (Int, Int)] = (1, 2)
println(boo.apply)I mean, that's too easy to bypass restrictions on named tuple field names. What error will be in this case?
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The validation doesn't apply to non-standard construction of named tuples (#23360). The compiler team decided that validation should only be applied to named tuples created with the spec (k:V) syntax. Either way of course it should not crash the compiler.
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I think we can probably do a slightly different approach, in that we don't try to do member selection on a named tuple if that tuple defines the apply method. That would make the scheme water-tight even for tuples constructed by hand with |
Similar to scala#24188, but we now disallow `apply` members at tuple selection instead of tuple formation. This also works for hand-rolled tuples built using `NamedTuple(...)`. And it constitutes the minimal fix to avoid the recursion.
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Replaced by #24191 |
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Fixes #24021