Struct oasis_std::exe::Context

pub struct Context { /* fields omitted */ }

The context of the current RPC. To create a Context, use Context::default() or Context::delegated(). The default Context will have its sender be the address of the current service or, when testing, the sender set by Context::with_sender. A delegated Context sets the sender to the address of the caller; this is similar to Ethereum's DELEGATECALL.

You can use Context::with_value to transfer native tokens along with the call.

Methods

impl Context

pub fn with_gas(self, gas: u64) -> Self

Sets the amount of computation resources available to the callee. Has no effect when called inside of a service.

pub fn sender(&self) -> Address

Returns the Address of the sender of the current RPC.

pub fn address(&self) -> Address

Returns the Address of the currently executing service. Panics if not called from within a service RPC.

pub fn aad(&self) -> Vec<u8>

Returns the AAD of the confidential execution.

pub fn value(&self) -> Balance

Returns the value with which this Context was created.

impl Context

pub fn with_sender(self, sender: Address) -> Self

Sets the sender of the RPC receiving this Context as an argument. Has no effect when called inside of a service.

pub fn with_value<B: Into<Balance>>(self, value: B) -> Self

Amends a Context with the value that should be transferred to the callee.

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Context

impl Default for Context

fn default() -> Context

Returns the "default value" for a type.

impl Debug for Context

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

Formats the value using the given formatter.