forks/go-ethereum
1
0
Fork 1
mirror of https://github.com/ethereum/go-ethereum.git synced 2026-02-26 15:47:21 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

website: clarify prestate tracer diffMode (#30081)

Browse source
This commit is contained in:
A_A 2024-06-28 11:06:50 +02:00 committed by GitHub
parent f461188741
commit e85e6ff0c3
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 6 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
docs/developers/evm-tracing/built-in-tracers.md
View file

@ -219,11 +219,12 @@ The prestate tracer has two modes: `prestate` and `diff`. The `prestate` mode re
In `diff` mode the result object will contain a `pre` and a `post` object:
1. Any read-only access is omitted completely from the result. This mode is only concerned with state modifications.
2. In `pre` you will find the state of an account before the tx started, and in post its state after tx execution finished.
3. `post` will contain only the modified fields. e.g. if `nonce` of an account hasn't changed it will be omitted from `post`.
4. Deletion (i.e. account selfdestruct, or storage clearing) will be signified by inclusion in `pre` and omission in `post`.
5. Insertion (i.e. account creation or new slots) will be signified by omission in `pre` and inclusion in `post`.
1. The result only includes accounts that were modified. Accounts without changes will be omitted in this mode.
2. In `pre` you will find the state of an account before the tx started, and in `post` its state after tx execution finished.
3. `pre` can include fields that were not modified, if some other fields for the same account were modified.
4. `post` will contain only the modified fields. e.g. if `nonce` of an account hasn't changed it will be omitted from `post`.
5. Deletion (i.e. account selfdestruct, or storage clearing) will be signified by inclusion in `pre` and omission in `post`.
6. Insertion (i.e. account creation or new slots) will be signified by omission in `pre` and inclusion in `post`.
To run this tracer in `diff` mode, pass `tracerConfig: {diffMode: true}` in the API call.