Struct ExtensionContainer

pub struct ExtensionContainer { /* private fields */ }

Contains extensions

Implementations

impl ExtensionContainer

pub fn add<E, S>(&mut self, name: S, value: E) -> Result<(), ExtensionError>

where E: Extension, S: AsRef<str>,

Adds a new extension to this container

Error

Will return an error if name is already registered to this container

pub fn get<S>( &self, name: S, ) -> Result<&Box<dyn Any + Sync + Send>, PayloadError<ProjectError>>

where S: AsRef<str>,

Gets a reference to an extension, if it exists

pub fn get_mut<S>( &mut self, name: S, ) -> Result<&mut Box<dyn Any + Sync + Send>, PayloadError<ProjectError>>

where S: AsRef<str>,

Gets a mutable reference to an extension, if it exists

pub fn get_by_type<E>(&self) -> Result<&E, PayloadError<ProjectError>>

where E: Extension,

If a single extension is registered with a given type, a reference to that value is returned as Ok(_)

pub fn get_by_type_mut<E>( &mut self, ) -> Result<&mut E, PayloadError<ProjectError>>

where E: Extension,

If a single extension is registered with a given type, a mutable reference to that value is returned as Some(_)

Trait Implementations

impl Debug for ExtensionContainer

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

Formats the value using the given formatter.

impl Default for ExtensionContainer

fn default() -> ExtensionContainer

Returns the “default value” for a type.

impl Index<&str> for ExtensionContainer

type Output = Box<dyn Any + Sync + Send>

The returned type after indexing.

fn index(&self, index: &str) -> &<ExtensionContainer as Index<&str>>::Output

Performs the indexing (container[index]) operation.

impl Index<String> for ExtensionContainer

type Output = Box<dyn Any + Sync + Send>

The returned type after indexing.

fn index(&self, index: String) -> &<ExtensionContainer as Index<String>>::Output

Performs the indexing (container[index]) operation.

impl IndexMut<&str> for ExtensionContainer

fn index_mut( &mut self, index: &str, ) -> &mut <ExtensionContainer as Index<&str>>::Output

Performs the mutable indexing (container[index]) operation.

impl IndexMut<String> for ExtensionContainer

fn index_mut( &mut self, index: String, ) -> &mut <ExtensionContainer as Index<String>>::Output

Performs the mutable indexing (container[index]) operation.