Impossible to get the value of another contract, this breaks established standards

[vporton]

How to get the value of a field of another contract?

It seems impossible... there is no way to get a balance of another ZRC-2 - too bad!

Need to add getting field values (and preferably also messages of a transition) of another contract. Does it require changes in the bytecode interpreter?

[jjcnn]

How to get the value of a field of another contract?

It seems impossible... there is no way to get a balance of another ZRC-2 - too bad!

At the moment the only option is to send a message invoking an appropriate getter transition on the other contract, and provide a transition that can receive the message that the getter sends back.

We are working on a way to read field values directly.

Does it require changes in the bytecode interpreter?

Yes, among other things. (BTW, the interpreter is not a bytecode interpreter - it interprets Scilla code directly).

(and preferably also messages of a transition)

I don't understand what this means. When invoked, transitions may create and send messages, but messages are not part of the contract's state, so there are no message to read.

[anton-trunov]

This has been implemented in #967 and is available since Scilla v0.10.0