BuildError: Early returns/terminators in if bodies are not supported with structured control flow

[jon-wurtz]

Use case: early termination

@squin.kernel
def return_zero(n):
    if n <=0:
        return n
    else:
        return return_zero(n-1)

raises BuildError: Early returns/terminators in if bodies are not supported with structured control flow

Yes this can be restructured as

@squin.kernel
def return_zero(n):
    if n > 0:
        return return_zero(n-1)
    return n

That is a structural change in code to comply with compiler needs.

[Roger-luo]

Unfortunately this is a bug to fix... It's not supported simply because we want to fix it with the refactor.