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NamedTuple.From does not reduce with match type argument #22036

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soronpo opened this issue Nov 27, 2024 · 0 comments · May be fixed by #22449
Open

NamedTuple.From does not reduce with match type argument #22036

soronpo opened this issue Nov 27, 2024 · 0 comments · May be fixed by #22449
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@aherlihy
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area:named-tuples Issues tied to the named tuples feature. itype:bug

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@soronpo
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soronpo commented Nov 27, 2024

Compiler version

v3.6.2-RC1

Minimized code

type Foo[T] = T
val x: NamedTuple.From[Tuple.Map[(Int, Int), Foo]] = ???
val y = x._1

Output

[error] 3 |val y = x._1
[error]   |        ^^^^
[error]   |        value _1 is not a member of NamedTuple.From[(Foo[Int], Foo[Int])]

Expectation

No error.
@soronpo soronpo added itype:bug area:named-tuples Issues tied to the named tuples feature. labels Nov 27, 2024
soronpo pushed a commit to DFiantHDL/DFHDL that referenced this issue Nov 27, 2024
used Scala 3.6.x Selectable.Fields for DFStruct/DFTuple with workar…
86bcafa 
…ound for scala/scala3#22036
@bishabosha bishabosha changed the title NamedTuple.From does not always work NamedTuple.From does not normalize match type argument Nov 27, 2024
@bishabosha bishabosha changed the title NamedTuple.From does not normalize match type argument NamedTuple.From does not reduce with match type argument Nov 27, 2024
@aherlihy aherlihy linked a pull request Jan 24, 2025 that will close this issue
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area:named-tuples Issues tied to the named tuples feature. itype:bug
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Special case NamedTuple.From for arguments derived from Tuple aherlihy/scala3
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@aherlihy @soronpo