Circuit construction, and passing arguments to quantum nodes

[pennylaneai]

Circuit construction, and passing arguments to quantum nodes

[josh146]

Talking this over with @smite and @cgogolin, this can be likely be fixed by a JIT-style circuit construction, i.e., having a separate QNode.construct() method. This is called the first time either of __call__() or gradient() is called.

I'll implement this approach, and then close this issue if it works.

[co9olguy]

@josh146 Just as a question: why did this issue not occur with the qubit circuits/gradients?

[co9olguy]

From my understanding, this appears to be resolved in 4a69b29. If there are particular bugs that come up with this implementation, we can reopen and make new issue