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StorageTrieEntryLike

Trait StorageTrieEntryLike 

Source
pub trait StorageTrieEntryLike: Sized {
    type SubKey: Clone;

    // Required methods
    fn nibbles(&self) -> &Self::SubKey;
    fn node(&self) -> &BranchNodeCompact;
    fn into_parts(self) -> (Self::SubKey, BranchNodeCompact);
    fn new(nibbles: Self::SubKey, node: BranchNodeCompact) -> Self;
}
Available on crate features trie and trie-db only.
Expand description

Trait for storage trie entry types that carry a subkey and node.

Needed because StorageTrieEntry and PackedStorageTrieEntry are separate structs with different field types, but DatabaseStorageTrieCursor must access .nibbles() and .node() generically through A::StorageValue.

Required Associated Types§

Source

type SubKey: Clone

The subkey type.

Required Methods§

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fn nibbles(&self) -> &Self::SubKey

Returns a reference to the nibbles subkey.

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fn node(&self) -> &BranchNodeCompact

Returns a reference to the branch node.

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fn into_parts(self) -> (Self::SubKey, BranchNodeCompact)

Decompose this value into owned parts.

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fn new(nibbles: Self::SubKey, node: BranchNodeCompact) -> Self

Construct a new entry from a subkey and node.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§