Struct Metadata 

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

Implementations

impl Metadata

pub fn new() -> Self

pub fn with( self, key: impl Into<String>, value: impl Into<String>, ) -> Result<Self>

pub fn from_map(map: BTreeMap<String, String>) -> Result<Self>

pub fn get(&self, key: &str) -> Option<&str>

pub fn has(&self, key: &str) -> bool

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn as_map(&self) -> &BTreeMap<String, String>

pub fn into_map(self) -> BTreeMap<String, String>

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl Default for Metadata

fn default() -> Metadata

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Metadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Metadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<BTreeMap<String, String>> for Metadata

type Error = Error

The type returned in the event of a conversion error.

fn try_from(map: BTreeMap<String, String>) -> Result<Self>

Performs the conversion.

impl TryFrom<HashMap<String, String>> for Metadata

type Error = Error

The type returned in the event of a conversion error.

fn try_from(map: HashMap<String, String>) -> Result<Self>

Performs the conversion.