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Makes storage hashers optional in dev mode #13815

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merged 6 commits into from
Apr 11, 2023
Merged

Makes storage hashers optional in dev mode #13815

merged 6 commits into from
Apr 11, 2023

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gupnik
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@gupnik gupnik commented Apr 4, 2023

As discussed in #13263, this PR adds the ability to make storage hashers as _ in dev_mode. All code without dev_mode continues to work in dev_mode.

@gupnik gupnik added the A3-in_progress Pull request is in progress. No review needed at this stage. label Apr 4, 2023
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sam0x17 commented Apr 4, 2023

This looks great! I would definitely add a UI test covering when someone tries to use this syntax without dev mode enabled

@gupnik gupnik changed the title [WIP]: Makes storage hashers optional in dev mode Makes storage hashers optional in dev mode Apr 4, 2023
@gupnik gupnik marked this pull request as ready for review April 4, 2023 16:23
@gupnik gupnik added A0-please_review Pull request needs code review. and removed A3-in_progress Pull request is in progress. No review needed at this stage. labels Apr 4, 2023
@gupnik gupnik requested a review from sam0x17 April 4, 2023 16:23
@gupnik gupnik added B0-silent Changes should not be mentioned in any release notes C1-low PR touches the given topic and has a low impact on builders. D3-trivial 🧸 PR contains trivial changes in a runtime directory that do not require an audit labels Apr 4, 2023
@gupnik gupnik requested a review from kianenigma April 4, 2023 16:26
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gupnik commented Apr 4, 2023

bot fmt

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command-bot bot commented Apr 4, 2023 •
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@gupnik https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2641655 was started for your command "$PIPELINE_SCRIPTS_DIR/commands/fmt/fmt.sh". Check out https://gitlab.parity.io/parity/mirrors/substrate/-/pipelines?page=1&scope=all&username=group_605_bot to know what else is being executed currently.

Comment bot cancel 2-3874f62f-44ec-4ea7-be83-dec95bfff3db to cancel this command or bot cancel to cancel all commands in this pull request.

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command-bot bot commented Apr 4, 2023

@gupnik Command "$PIPELINE_SCRIPTS_DIR/commands/fmt/fmt.sh" has finished. Result: https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2641655 has finished. If any artifacts were generated, you can download them from https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2641655/artifacts/download.

@gupnik gupnik requested review from ggwpez and KiChjang April 10, 2023 15:27
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ggwpez reviewed Apr 11, 2023
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I am not that familiar with the code but looks good.

frame/support/test/tests/pallet_ui/pass/dev_mode_valid.rs Outdated Show resolved Hide resolved
frame/support/procedural/src/pallet/parse/storage.rs Show resolved Hide resolved
frame/support/procedural/src/pallet/parse/storage.rs Show resolved Hide resolved
ggwpez
ggwpez approved these changes Apr 11, 2023
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frame/support/test/tests/pallet_ui/pass/dev_mode_valid.rs
pallet::MyStorageMap::<Runtime>::insert(1, 2);
let mut k = [twox_128(b"Example"), twox_128(b"MyStorageMap")].concat();
k.extend(1u32.using_encoded(blake2_128_concat));
assert_eq!(unhashed::get::<u64>(&k), Some(2u64));
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Yes thanks for the test!

Normally we only test UI behaviour in the UI tests and not logic, but i think it is fine.

@gupnik gupnik merged commit da9f88d into master Apr 11, 2023
@gupnik gupnik deleted the gupnik/optional_hashers_dev branch April 11, 2023 15:10
bkchr
bkchr reviewed Apr 11, 2023
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frame/support/test/tests/pallet_ui/dev_mode_without_arg_default_hasher.stderr
Comment on lines +1 to +5
error[E0121]: the placeholder `_` is not allowed within types on item signatures for type aliases
--> tests/pallet_ui/dev_mode_without_arg_default_hasher.rs:21:47
|
21 | type MyStorageMap<T: Config> = StorageMap<_, _, u32, u64>;
| ^ not allowed in type signatures
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This will confuse people when they disable dev_mode. They will not get why it doesn't work. I would still be in favor of having Blake2128Concat as default hasher, even in "normal mode". However, the bare minimum should be a proper error message that tells the user on what to do.

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Got it, will fix the error in another PR

@gupnik gupnik mentioned this pull request Apr 12, 2023
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kianenigma commented Apr 17, 2023 •
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I think the fact that this PR has not updated any docs is not good IMO. This is exactly the type of change that does affect the end users of FRAME, and should be better documented going forward -- Do we have any docs for dev_mode in the code?

  • If no, we should, including an pallet-example-dev-mode of some sort.
  • If yes, they should have been updated.

@gupnik can you make a follow-up?

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gupnik commented Apr 18, 2023 •
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@kianenigma Got it. Will raise a follow-up.

@gupnik gupnik mentioned this pull request Apr 18, 2023
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@kacperzuk-neti kacperzuk-neti mentioned this pull request Jun 23, 2023
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nathanwhit pushed a commit to nathanwhit/substrate that referenced this pull request Jul 19, 2023
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Makes storage hashers optional in dev mode (paritytech#13815)
b1b86cc 
* Initial changes

* Adds UI test for error when _ is used without dev_mode

* Minor

* ".git/.scripts/commands/fmt/fmt.sh"

* Adds test to verify hasher

---------

Co-authored-by: command-bot <>
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