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Certain transformers should run after the final step #43

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cd1m0 opened this issue Oct 24, 2024 · 0 comments

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cd1m0 commented Oct 24, 2024

Currently transformers run on each step of the trace. However some transforms can compute values after the end of the trace. Examples include:

decoded contract state before
live contracts before
return values
...

It would be nice to find a simple way to reuse the transformer logic for this. There are 2 problems here:

How do we change the transformer signature so that some of them can run wihtout a step (or with a dummy step)
Where do we store this information? Does the trace just come with N+1 entries?

This is likely an interface breaking change.

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