[−][src]Module tracing::field
Structured data associated with Span
s and Event
s.
Structs
DebugValue | A |
DisplayValue | A |
Empty | An empty field. |
Field | An opaque key allowing O(1) access to a field in a |
FieldSet | Describes the fields present on a span. |
Iter | An iterator over a set of fields. |
ValueSet | A set of fields and values for a span. |
Traits
AsField | Trait implemented to allow a type to be used as a field key. |
Value | A field value of an erased type. |
Visit | Visits typed values. |
Functions
debug | Wraps a type implementing |
display | Wraps a type implementing |