Trait SpanText 

pub trait SpanText:
    Debug
    + Eq
    + Hash
    + Borrow<str>
    + Serialize
    + Default {
    // Required method
    fn from_static_str(value: &'static str) -> Self;

    // Provided method
    fn to_bytes_string(&self) -> BytesString { ... }
}

Trait representing the requirements for a type to be used as a Span “string” type. Note: Borrow is not required by the derived traits, but allows to access HashMap elements from a static str and check if the string is empty.

Required Methods

fn from_static_str(value: &'static str) -> Self

Provided Methods

fn to_bytes_string(&self) -> BytesString

Copies this text into an owned BytesString.

Used by the v0.5 conversion, whose shared dictionary always owns its strings so it can hold both interned span text and dynamically-built JSON (span links / events). The default copies the bytes; owned text types (e.g. BytesString) should override with a cheaper reference-counted clone.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl SpanText for &str

fn from_static_str(value: &'static str) -> Self

impl SpanText for BytesString

fn from_static_str(value: &'static str) -> Self

fn to_bytes_string(&self) -> BytesString

Implementors