Trait sp_sandbox::SandboxEnvironmentBuilder

pub trait SandboxEnvironmentBuilder<State, Memory>: Sized {
    fn new() -> Self;
    fn add_host_func<N1, N2>(
        &mut self,
        module: N1,
        field: N2,
        f: HostFuncType<State>
    )
    where
        N1: Into<Vec<u8>>,
        N2: Into<Vec<u8>>;
    fn add_memory<N1, N2>(&mut self, module: N1, field: N2, mem: Memory)
    where
        N1: Into<Vec<u8>>,
        N2: Into<Vec<u8>>;
}

Struct that can be used for defining an environment for a sandboxed module.

The sandboxed module can access only the entities which were defined and passed to the module at the instantiation time.

Required Methods

fn new() -> Self

Construct a new EnvironmentDefinitionBuilder.

fn add_host_func<N1, N2>(&mut self, module: N1, field: N2, f: HostFuncType<State>)where
    N1: Into<Vec<u8>>,
    N2: Into<Vec<u8>>,

Register a host function in this environment definition.

NOTE that there is no constraints on type of this function. An instance can import function passed here with any signature it wants. It can even import the same function (i.e. with same module and field) several times. It’s up to the user code to check or constrain the types of signatures.

fn add_memory<N1, N2>(&mut self, module: N1, field: N2, mem: Memory)where
    N1: Into<Vec<u8>>,
    N2: Into<Vec<u8>>,

Register a memory in this environment definition.

Implementors

impl<T> SandboxEnvironmentBuilder<T, Memory> for EnvironmentDefinitionBuilder<T>