Struct concordium_std::ExternContext

pub struct ExternContext<T: ContextType> { /* private fields */ }

Context backed by host functions.

Usuaully referred to via aliases InitContext or ReceiveContext.

Trait Implementations

impl<T: Default + ContextType> Default for ExternContext<T>

fn default() -> ExternContext<T>

Returns the “default value” for a type.

impl<T: ContextType> HasCommonData for ExternContext<T>

type MetadataType = ExternChainMeta

type ParamType = ExternParameter

type PolicyIteratorType = PoliciesIterator

type PolicyType = Policy<AttributesCursor>

fn metadata(&self) -> &Self::MetadataType

Get the reference to chain metadata

fn policies(&self) -> PoliciesIterator

Policies of the sender of the message. For init methods this is the would-be creator of the contract, for the receive this is the policies of the immediate sender.

fn parameter_cursor(&self) -> Self::ParamType

Get the cursor to the parameter.

impl HasInitContext for ExternContext<ExternInitContext>

Trait implementations for the init context

fn open(_: Self::InitData) -> Self

Create a new init context by using an external call.

type InitData = ()

Data needed to open the context.

fn init_origin(&self) -> AccountAddress

Who invoked this init call.

impl HasReceiveContext for ExternContext<ExternReceiveContext>

Trait implementations for the receive context

fn open(_: Self::ReceiveData) -> Self

Create a new receive context

type ReceiveData = ()

fn invoker(&self) -> AccountAddress

Who is the account that initiated the top-level transaction this invocation is a part of.

fn self_address(&self) -> ContractAddress

The address of the contract being invoked.

fn sender(&self) -> Address

The immediate sender of the message. In general different from the invoker.

fn owner(&self) -> AccountAddress

Account which created the contract instance.

fn named_entrypoint(&self) -> OwnedEntrypointName

Get the name of the entrypoint that was named. In case a default entrypoint is invoked this can be different from the name of the entrypoint that is being executed.