Struct TransactionInput

pub struct TransactionInput(/* private fields */);

The type of transaction input could be either explicit value or output index.

Specifically, if the previous method has #[output] or return value, those values are collected and pushed into a virtual “stack”. Then, if Self::input_type() returns TransactionInputType::OutputIndex, then the corresponding input will use the value at output_index of this stack instead of what was specified in external_args. This allows composing calls to multiple methods into more sophisticated workflows without writing special contracts for this.

Implementations

impl TransactionInput

pub const fn new_value(alignment: NonZeroU8) -> Option<Self>

Regular input value with specified alignment.

Valid alignment values are: 1, 2, 4, 8, 16.

pub const fn new_output_index(output_index: u8) -> Option<Self>

Output index value.

Valid index values are 0..=127.

pub const fn from_u8(n: u8) -> Self

Create an instance from u8

pub const fn into_u8(self) -> u8

Convert instance into u8

pub const fn input_type(self) -> TransactionInputType

Returns Some(output_index) or None if regular input value

Trait Implementations

impl Clone for TransactionInput

fn clone(&self) -> TransactionInput

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TransactionInput

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

Formats the value using the given formatter.

impl Copy for TransactionInput