Struct Spend 

pub struct Spend { /* private fields */ }

The Spend struct represents a spend action and validates it by executing the unlocking and locking scripts.

Implementations

impl Spend

pub fn new(params: SpendParams) -> Self

Creates a new Spend validator from the given parameters.

pub fn set_require_minimal(&mut self, require: bool)

Overrides MINIMALDATA enforcement (script-number and push minimality).

Default follows ts-sdk: enforced for version <= 1 transactions, relaxed for version > 1 (post-Genesis semantics).

pub fn set_require_push_only(&mut self, require: bool)

Allows opting out of the push-only unlocking-script check.

The TypeScript @bsv/sdk Spend engine does not enforce push-only unlocking scripts; some OP_PUSH_TX-style covenant designs place executable code in the unlocking script and verify under that engine. Default remains true (enforced).

pub fn reset(&mut self)

Resets the interpreter state for re-execution.

pub fn validate(&mut self) -> Result<bool, ScriptEvaluationError>

Validates the spend by executing both scripts.

Returns

Ok(true) if the spend is valid, or an error describing why validation failed.

pub fn step(&mut self) -> Result<bool, ScriptEvaluationError>

Executes a single instruction (step).

Returns

Ok(true) if execution should continue, Ok(false) if the script is complete.