Trait diem_sdk::move_types::resolver::ResourceResolver

pub trait ResourceResolver {
    type Error: Debug;

    // Required method
    fn get_resource(
        &self,
        address: &AccountAddress,
        typ: &StructTag
    ) -> Result<Option<Vec<u8, Global>>, Self::Error>;
}

A persistent storage backend that can resolve resources by address + type Storage backends should return

• Ok(Some(..)) if the data exists
• Ok(None) if the data does not exist
• Err(..) only when something really wrong happens, for example - invariants are broken and observable from the storage side (this is not currently possible as ModuleId and StructTag are always structurally valid) - storage encounters internal error

Required Associated Types

type Error: Debug

Required Methods

fn get_resource( &self, address: &AccountAddress, typ: &StructTag ) -> Result<Option<Vec<u8, Global>>, Self::Error>

Implementations on Foreign Types

impl<T> ResourceResolver for &Twhere T: ResourceResolver + ?Sized,

type Error = <T as ResourceResolver>::Error

fn get_resource( &self, address: &AccountAddress, tag: &StructTag ) -> Result<Option<Vec<u8, Global>>, <&T as ResourceResolver>::Error>

Implementors