Ints greater than equal to 2^5 cannot be decoded as an Int when part of a Union

[johnliedtke]

Hey pkl-swift team,

I have another issue with the union type. It appears integers that exceed 2^5 are decoded as Swift.UInt8, Swift.UInt16, etc. depending on their size rather than a Swift Int which causes the decoding to fail.

Example:

module Example

typealias IntOrFloat = Int|Float

valueOne: IntOrFloat
valueTwo: IntOrFloat

amends "Example.pkl"

valueOne = 127 // yay!
valueTwo = 128 // decoding error

Error: typeMismatch(glass.Example.IntOrFloat, Swift.DecodingError.Context(codingPath: [], debugDescription: "Expected type IntOrFloat, but got Optional(AnyHashable(128))", underlyingError: nil))

Actual type is

(lldb) po type(of: decoded!.base)
Swift.UInt8

[bioball]

I can reproduce this.

Thanks for the bug report!

As a workaround for now, you can adjust the generated files with:

-case let decoded as Int:
-    self = IntOrFloat.int(decoded)
+case let decoded as any BinaryInteger:
+    self = IntOrFloat.int(Int(decoded))