Struct move_vm_runtime::native_extensions::NativeContextExtensions

pub struct NativeContextExtensions<'a> { /* private fields */ }

A data type to represent a heterogeneous collection of extensions which are available to native functions. A value to this is passed into the session function execution.

The implementation uses the crate better_any which implements a version of the Any type, called Tid<a>, which allows for up to one lifetime parameter. This avoids that extensions need to have ’staticlifetime, whichAnyrequires. In order to make a struct suitable to be a 'Tid', use#[derive(Tid)]` in the struct declaration. (See also tests at the end of this module.)

Implementations

impl<'a> NativeContextExtensions<'a>

pub fn add<T: TidAble<'a>>(&mut self, ext: T)

pub fn get<T: TidAble<'a>>(&self) -> &T

pub fn get_mut<T: TidAble<'a>>(&mut self) -> &mut T

pub fn remove<T: TidAble<'a>>(&mut self) -> T

Trait Implementations

impl<'a> Default for NativeContextExtensions<'a>

fn default() -> NativeContextExtensions<'a>

Returns the “default value” for a type.