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Remove partial key size limit from trie codec (#12566)

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* remove size limit from trie codec

* test previous upper limit is not enforced anymore

* fmt

* restore test
This commit is contained in:
cheme
2022-11-08 21:24:54 +01:00
committed by GitHub
parent 78cddd7631
commit 8b2ca711b3
4 changed files with 17 additions and 9 deletions
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substrate/primitives/trie/src/node_header.rs
+1 -4
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@@ -117,8 +117,6 @@ pub(crate) fn size_and_prefix_iterator(
prefix: u8,
prefix_mask: usize,
) -> impl Iterator<Item = u8> {
let size = sp_std::cmp::min(trie_constants::NIBBLE_SIZE_BOUND, size);
let max_value = 255u8 >> prefix_mask;
let l1 = sp_std::cmp::min((max_value as usize).saturating_sub(1), size);
let (first_byte, mut rem) = if size == l1 {
@@ -165,12 +163,11 @@ fn decode_size(
return Ok(result)
}
result -= 1;
while result <= trie_constants::NIBBLE_SIZE_BOUND {
loop {
let n = input.read_byte()? as usize;
if n < 255 {
return Ok(result + n + 1)
}
result += 255;
}
Ok(trie_constants::NIBBLE_SIZE_BOUND)
}