Struct DiagMeta 

pub struct DiagMeta { /* private fields */ }

A key-value store for diagnostic metadata.

Implementations

impl DiagMeta

pub fn new() -> Self

Creates an empty metadata store.

pub fn add(&mut self, key: impl Into<String>, val: impl Into<String>)

Adds a key-value pair.

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

Returns the value for key, or None.

pub fn len(&self) -> usize

Returns the number of entries.

pub fn is_empty(&self) -> bool

Returns true if empty.

Trait Implementations

impl Default for DiagMeta

fn default() -> Self

Returns the “default value” for a type.

impl Display for DiagMeta

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

Formats the value using the given formatter.