Add support for clauseInterleaving in JVM generic signatures #21709
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hamzaremmal
commented
Oct 5, 2024
| // erased method parameters do not make it to the bytecode. | ||
| def effectiveParamInfoss(t: Type)(using Context): List[List[Type]] = t match { | ||
| case t: MethodType if t.hasErasedParams => | ||
| t.paramInfos.zip(t.erasedParams).collect{ case (i, false) => i } |
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I'm not sure why the previous code here didn't just use filter
sjrd
requested changes
Oct 7, 2024
tests/run/i21346.scala
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| // scalajs: --skip | ||
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| object Foo: | ||
| def foo[X, Y, Z](x: X, y: Y)[A](z: Z) = ??? |
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We need to test what happens if we actually refer to A. And perhaps also give a result type since Nothing is a bit weird and not what we're testing for:
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| def foo[X, Y, Z](x: X, y: Y)[A](z: Z) = ??? | |
| def foo[X, Y, Z](x: X, y: Y)[A](z: Z, A: A): (X, Y, Z, A) = ??? |
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Likewise, we should test what happens if the bounds of a type parameter are path-dependent on a previous term parameter.
It might not result in something very sensible, but it should be good enough not to crash Java reflection.
compiler/src/dotty/tools/dotc/transform/GenericSignatures.scala
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compiler/src/dotty/tools/dotc/transform/GenericSignatures.scala
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sjrd
approved these changes
Oct 7, 2024
hamzaremmal
commented
Oct 7, 2024
tests/run/i21346.scala
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| def bar[X](x: X)[Y <: x.type](y: Y): (X, Y) = (x, y) | ||
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| @main def Test = | ||
| val mtds = Foo.getClass().getDeclaredMethods().filterNot(_.getName() == "writeReplace") |
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The order of the methods is not deterministic, I'll order them alphabetically
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Closes #21346