trailofbits/manticore

Feature request: Automatic conversion of tx.return_data

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#1,595 opened on Jan 23, 2020

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Description

Currently, to retrieve the return value of a transaction, we need to do

    balance_raw = transaction.return_data
    balance = ABI.deserialize("uint", balance_raw)

It would be nice to have a transaction's property that deserializes automatically the data, given the function's signature.

Contributor guide

Research direction
Understand the Transaction class's return data attribute and the ABI deserialization logic. Then add a property to automatically deserialize return data given the function signature.
Tech stack
python
Domain
blockchain
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75