Struct BlockGenesisArgs 

pub struct BlockGenesisArgs<'external_args> { /* private fields */ }

Data structure containing expected input for external method invocation, eventually calling block_genesis() on the other side by the host.

This can be used with Env, though there are helper methods on this provided by extension trait that allow not dealing with this struct directly in simpler cases.

Implementations

impl<'external_args> BlockGenesisArgs<'external_args>

pub fn new() -> Self

Create a new instance.

A call can leave contents behind in outputs that are not valid values of their types, even when it succeeds. Hence outputs are given as OutputArg, which makes sure contents are parsed before they are accessed, unless every bit pattern is a valid value. After a successful call, query updated sizes of outputs with *_size() getters and set them with OutputArg::set_output_size(). The return value (if there is one) is initialized after a successful call, but it is not necessarily a valid value of its type and must be parsed, for example with IoType::try_from_ptr().

Trait Implementations

impl<'external_args> Debug for BlockGenesisArgs<'external_args>

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

Formats the value using the given formatter.

impl ExternalArgs for BlockGenesisArgs<'_>

const FINGERPRINT: MethodFingerprint

Fingerprint of the method being called

const METADATA: &'static [u8] = METADATA

Metadata that corresponds to a method being called