Struct ContextWrapper 

pub struct ContextWrapper(/* private fields */);

Provides a wrapper for Context objects which permits the management of sequential, non-overlapping contexts.

Implementations

impl ContextWrapper

pub fn new() -> Self

Creates a new ContextWrapper objects.

pub fn current(&self) -> Option<&Context>

Gets the current context, if one exists.

pub fn replace(&mut self) -> Context

Cancels the last context, creating a new global context in its place (which is returned).

pub fn replace_ext(&mut self, ctx: impl ParentContext) -> Context

Cancels the last context, creating a new context as a child of the given context in its place.

Trait Implementations

impl Default for ContextWrapper

fn default() -> Self

Returns the “default value” for a type.