Coverage Error: could not find anchor: no matching instruction in range
0x0scion opened this issue · 2 comments
Component
Forge
Have you ensured that all of these are up to date?
- Foundry
- Foundryup
What version of Foundry are you on?
forge 0.2.0 (5279f69 2022-06-29T00:09:16.192779Z)
What command(s) is the bug in?
forge coverage
Operating System
macOS (Intel)
Describe the bug
Getting an error when trying to run coverage:
(ERC20Upgradeable is an OZ contract)
all test run without issues
Analysing contracts...
Error:
could not find anchor: no matching instruction in range ERC20Upgradeable:2193:91:3
Some additional info:
same error when running forge coverage in this example repo: https://github.com/devanonon/ERC4626Votes (from this blog post)
Error is gone when reverting to a slightly earlier version of foundry - forge 0.2.0 (5385486 2022-06-27T00:03:53.397337486Z)
This is a known issue, abstract contracts do not work right now. forge coverage is not production ready yet! Thank you for your report 😄 See #1965
The reason it works on a previous version is that the previous version used a different system to figure out what opcodes mark source ranges as covered, but that system is not super accurate.