Enum TransactionTarget

pub enum TransactionTarget {
    Native,
    Stored {
        id: TransactionInvocationTarget,
        runtime: TransactionRuntime,
        transferred_value: u64,
    },
    Session {
        is_install_upgrade: bool,
        runtime: TransactionRuntime,
        module_bytes: Bytes,
        transferred_value: u64,
        seed: Option<[u8; 32]>,
    },
}

The execution target of a crate::Transaction.

Variants

Native

The execution target is a native operation (e.g. a transfer).

Stored

The execution target is a stored entity or package.

Fields

id: TransactionInvocationTarget

The identifier of the stored execution target.

runtime: TransactionRuntime

The execution runtime to use.

transferred_value: u64

The amount of motes to transfer before code is executed.

Session

The execution target is the included module bytes, i.e. compiled Wasm.

Fields

is_install_upgrade: bool

Flag determining if the Wasm is an install/upgrade.

runtime: TransactionRuntime

The execution runtime to use.

module_bytes: Bytes

The compiled Wasm.

transferred_value: u64

The amount of motes to transfer before code is executed.

This is for protection against phishing attack where a malicious session code drains the balance of the caller account. The amount stated here is the maximum amount that can be transferred from the caller account to the session account.

seed: Option<[u8; 32]>

The seed for the session code that is used for an installer.

Implementations

impl TransactionTarget

pub fn new_native() -> Self

Returns a new TransactionTarget::Native.

pub fn new_stored( id: TransactionInvocationTarget, runtime: TransactionRuntime, transferred_value: u64, ) -> Self

Returns a new TransactionTarget::Stored.

pub fn new_session( is_install_upgrade: bool, module_bytes: Bytes, runtime: TransactionRuntime, transferred_value: u64, seed: Option<[u8; 32]>, ) -> Self

Returns a new TransactionTarget::Session.

pub fn contract_hash_addr(&self) -> Option<HashAddr>

Returns a hash_addr for a targeted contract, if known.

pub fn invocation_target(&self) -> Option<TransactionInvocationTarget>

Returns the invocation target, if any.

pub fn random(rng: &mut TestRng) -> Self

Available on crate feature testing only.

Returns a random TransactionTarget.

pub fn is_session(&self) -> bool

Returns true if the transaction target is Session.

Trait Implementations

impl Clone for TransactionTarget

fn clone(&self) -> TransactionTarget

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DataSize for TransactionTarget

const IS_DYNAMIC: bool = true

If true, the type has a heap size that can vary at runtime, depending on the actual value.

const STATIC_HEAP_SIZE: usize = 0usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound.

fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value.

impl Debug for TransactionTarget

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TransactionTarget

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TransactionTarget

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

Formats the value using the given formatter.

impl FromBytes for TransactionTarget

fn from_bytes(bytes: &[u8]) -> Result<(TransactionTarget, &[u8]), Error>

Deserializes the slice into Self.

fn from_vec(bytes: Vec<u8>) -> Result<(Self, Vec<u8>), Error>

Deserializes the Vec<u8> into Self.

impl Hash for TransactionTarget

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl JsonSchema for TransactionTarget

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(gen: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl Ord for TransactionTarget

fn cmp(&self, other: &TransactionTarget) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for TransactionTarget

fn eq(&self, other: &TransactionTarget) -> 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 PartialOrd for TransactionTarget

fn partial_cmp(&self, other: &TransactionTarget) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for TransactionTarget

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToBytes for TransactionTarget

fn to_bytes(&self) -> Result<Vec<u8>, Error>

Serializes &self to a Vec<u8>.

fn serialized_length(&self) -> usize

Returns the length of the Vec<u8> which would be returned from a successful call to to_bytes() or into_bytes(). The data is not actually serialized, so this call is relatively cheap.

fn into_bytes(self) -> Result<Vec<u8>, Error>

where Self: Sized,

Consumes self and serializes to a Vec<u8>.

fn write_bytes(&self, writer: &mut Vec<u8>) -> Result<(), Error>

Writes &self into a mutable writer.

impl Eq for TransactionTarget

impl StructuralPartialEq for TransactionTarget