Struct IndexedDynamicValue

pub struct IndexedDynamicValue<T> {
    pub hash: Vec<u8>,
    /* private fields */
}

Ethereum events with indexed parameters that are of dynamic types like a ‘string’, ‘bytes’ or array of value do not contain the actual value in the log. Instead, they contain a hash of the value. This struct is used to represent such values in the decoded event.

The hash value read can be retrieved from the hash field, the original value cannot be retrieved (unless you know it already, in which case you can validate it fits the current hash).

You can access the hash (also equivalent to the topic in this case) directly on the struct:

let value = IndexedDynamicValue::<String>::new("0x1234".into());
assert_eq!(value.hash, "0x1234".into());

Fields

hash: Vec<u8>

The hash of the value that was indexed, not the real value that was actually indexed. The original real value cannot be retrieved.

Implementations

impl<T> IndexedDynamicValue<T>

pub fn new(topic: Vec<u8>) -> IndexedDynamicValue<T>

Trait Implementations

impl<T> Clone for IndexedDynamicValue<T>

where T: Clone,

fn clone(&self) -> IndexedDynamicValue<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for IndexedDynamicValue<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> From<Vec<u8>> for IndexedDynamicValue<T>

fn from(topic: Vec<u8>) -> IndexedDynamicValue<T>

Converts to this type from the input type.

impl<T> PartialEq for IndexedDynamicValue<T>

where T: PartialEq,

fn eq(&self, other: &IndexedDynamicValue<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl<T> StructuralPartialEq for IndexedDynamicValue<T>