Struct TransactionSchema

pub struct TransactionSchema<T: InstructionDecoderCollection> {
    pub root: Vec<SchemaNode<T>>,
}

Represents the schema for a transaction, defining the structure and expected instructions.

TransactionSchema allows you to define the structure of a transaction by specifying a list of SchemaNode elements at the root level. These nodes can represent specific instruction types or allow for flexibility with Any nodes. Nested instructions are supported to enable complex hierarchical schemas.

Methods

• match_schema: Attempts to match the transaction’s instructions against the schema, returning a deserialized representation of the data.
• match_nodes: Matches the instructions against the schema nodes, returning a mapping of instruction names to data, if successful.

Fields

root: Vec<SchemaNode<T>>

Implementations

impl<T: InstructionDecoderCollection> TransactionSchema<T>

pub fn match_schema<U>( &self, instructions: &[ParsedInstruction<T>], ) -> Option<U>

where U: DeserializeOwned,

Matches the transaction’s instructions against the schema and returns a deserialized result.

Parameters

• instructions: A slice of ParsedInstruction representing the instructions to be matched.

Returns

An Option<U> containing the deserialized data if matching and deserialization are successful. The U represents the expected output type, manually made by the developer.

pub fn match_nodes( &self, instructions: &[ParsedInstruction<T>], ) -> Option<HashMap<String, (T, Vec<AccountMeta>)>>

Matches the instructions against the schema nodes and returns a mapping of instruction names to data.

This method processes the instructions and checks them against the schema nodes sequentially. If the instructions match, a HashMap of instruction names to decoded data and associated accounts is returned.

Parameters

• instructions: A slice of ParsedInstruction representing the instructions to be matched.

Returns

An Option<HashMap<String, (T, Vec<AccountMeta>)>> containing the matched instruction data, or None if the instructions do not match the schema.

Trait Implementations

impl<T: Clone + InstructionDecoderCollection> Clone for TransactionSchema<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + InstructionDecoderCollection> Debug for TransactionSchema<T>

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

Formats the value using the given formatter.