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SparseNodeState

reth_trie_sparse

Enum SparseNodeState 

Source 
pub enum SparseNodeState {
    Dirty,
    Cached {
        rlp_node: RlpNode,
        store_in_db_trie: Option<bool>,
    },
}
Expand description

Tracks the current state of a node in the trie, specifically regarding whether it’s been updated or not.

Variants§

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Dirty

The node has been updated and its new RlpNode has not yet been calculated.

If a node is dirty and has children (branches or extensions) then at least once child must also be dirty.

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Cached

The node has a cached RlpNode, either from being revealed or computed after an update.

Fields

§rlp_node: RlpNode

The RLP node which is used to represent this node in its parent. Usually this is the RLP encoding of the node’s hash, except for when the node RLP encodes to <32 bytes.

§store_in_db_trie: Option<bool>

Flag indicating if this node is cached in the database.

NOTE for extension nodes this actually indicates the node’s child branch is in the database, not the extension itself.

Implementations§

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impl SparseNodeState

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pub const fn cached_rlp_node(&self) -> Option<&RlpNode>

Returns the cached [RlpNode] of the node, if it’s available.

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pub fn cached_hash(&self) -> Option<B256>

Returns the cached hash of the node, if it’s available.

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pub const fn store_in_db_trie(&self) -> Option<bool>

Returns whether or not this node is stored in the db, or None if it’s not known.

Trait Implementations§

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impl Clone for SparseNodeState

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fn clone(&self) -> SparseNodeState

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SparseNodeState

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for SparseNodeState

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fn eq(&self, other: &SparseNodeState) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for SparseNodeState

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impl StructuralPartialEq for SparseNodeState

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Builds a [TxEnv] from a transaction, its sender, and encoded transaction bytes.
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 44 bytes

Size for each variant:

  • Dirty: 0 bytes
  • Cached: 43 bytes