Differences between Generate and Evaluate

[maciejmatuszak]

@richorama Hi Richard, I had bit more time and started to look at the implementation of the tickets I put some time ago.
One thing I notice there is Generate is creating subContext for block operations like "if", "while" or "procedure call".
Is there reason why Evaluate is not doing it?

[richorama]

excellent observation!

I wrote the 'Evaluate' implementation to follow how I thought the blockly implementation works (i.e. variables can be used outside of their scopes).

The 'Generate' method was contributed.

I'll check to see which approach is correct.