Collection expression not supported

[adrian-fjellberg]

I tried using a collection expression when setting the storage prefixes, but the Neo compiler does not support that properly, thus throwing a "Specified cast invalid" at runtime.

// Does NOT work:
private static readonly byte[] TreeByteLengthPrefix = [0x01, 0x03];

// Works:
private static readonly byte[] TreeByteLengthPrefix = new byte[] {0x01, 0x03};

I think it should either be supported or give a warning/error at compile time, as it was frustrating to debug.

PS: While looking in the C# Language Specification Support issue #819 , I could not find the collection expression support listed. I think collection expressions were introduced in C# 12.

[Jim8y]

This should have being supported, I will check the problem.

[adrian-fjellberg]

Ok. Thanks :)