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Implement a CountedStorageMap (#9125)

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* initial impl

* expose in pallet_prelude

* temp test

* Apply suggestions from code review

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
Co-authored-by: Xiliang Chen <xlchen1291@gmail.com>

* implement with macro help.

* test for macro generation

* add iterable functions, some test and fixes

* fix merge

* doc

* Update frame/support/src/storage/types/counted_map.rs

Co-authored-by: Zeke Mostov <32168567+emostov@users.noreply.github.com>

* fix merge

* fmt

* fix spelling

* improve on removal

* fix partial storage info

* fmt

* add license

* suggested renames

* fix typo

* fix test

* fmt

* fix ui tests

* clearer doc

* better doc

* add metadata test

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
Co-authored-by: Xiliang Chen <xlchen1291@gmail.com>
Co-authored-by: Zeke Mostov <32168567+emostov@users.noreply.github.com>
This commit is contained in:
Guillaume Thiolliere
2021-09-16 15:20:29 +02:00
committed by GitHub
parent 49b6dfd2e5
commit 65e5fa3aa3
22 changed files with 1721 additions and 204 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/support/src/storage/migration.rs
+4 -3
View File
@@ -186,7 +186,7 @@ pub fn storage_iter_with_suffix<T: Decode + Sized>(
Ok((raw_key_without_prefix.to_vec(), value))
};
PrefixIterator { prefix, previous_key, drain: false, closure }
PrefixIterator { prefix, previous_key, drain: false, closure, phantom: Default::default() }
}
/// Construct iterator to iterate over map items in `module` for the map called `item`.
@@ -219,7 +219,7 @@ pub fn storage_key_iter_with_suffix<
let value = T::decode(&mut &raw_value[..])?;
Ok((key, value))
};
PrefixIterator { prefix, previous_key, drain: false, closure }
PrefixIterator { prefix, previous_key, drain: false, closure, phantom: Default::default() }
}
/// Get a particular value in storage by the `module`, the map's `item` name and the key `hash`.
@@ -344,11 +344,12 @@ pub fn move_prefix(from_prefix: &[u8], to_prefix: &[u8]) {
return
}
let iter = PrefixIterator {
let iter = PrefixIterator::<_> {
prefix: from_prefix.to_vec(),
previous_key: from_prefix.to_vec(),
drain: true,
closure: |key, value| Ok((key.to_vec(), value.to_vec())),
phantom: Default::default(),
};
for (key, value) in iter {