Struct hdk::trace::WasmSubscriber

pub struct WasmSubscriber { /* fields omitted */ }

Trait Implementations

impl Default for WasmSubscriber

fn default() -> WasmSubscriber

Returns the “default value” for a type.

impl Subscriber for WasmSubscriber

By implementing WasmSubscriber we integrate the rust tracing crate with the __trace host_fn without inventing some DIY DSL

Currently supports all the event macros for tracing such as trace!, info!, debug!, warn!, error!.

Does NOT support spans, so attempting to #[instrument] a function or similar will panic the wasm.

fn enabled(&self, _metadata: &Metadata<'_>) -> bool

Returns true if a span or event with the specified metadata would be recorded.

fn new_span(&self, _attributes: &Attributes<'_>) -> Id

Not really implemented yet. Placeholder logic only.

fn record(&self, _span: &Id, _values: &Record<'_>)

Record a set of values on a span.

fn record_follows_from(&self, _span: &Id, _follows: &Id)

Adds an indication that span follows from the span with the id follows.

fn event(&self, event: &Event<'_>)

Records that an Event has occurred.

fn enter(&self, _span: &Id)

Records that a span has been entered.

fn exit(&self, _span: &Id)

Records that a span has been exited.

pub fn register_callsite(
    &self,
    metadata: &'static Metadata<'static>
) -> Interest

Registers a new callsite with this subscriber, returning whether or not the subscriber is interested in being notified about the callsite.

pub fn max_level_hint(&self) -> Option<LevelFilter>

Returns the highest verbosity level that this Subscriber will enable, or None, if the subscriber does not implement level-based filtering or chooses not to implement this method.

pub fn clone_span(&self, id: &Id) -> Id

Notifies the subscriber that a span ID has been cloned.

pub fn drop_span(&self, _id: Id)

👎 Deprecated since 0.1.2:

use Subscriber::try_close instead

This method is deprecated.

pub fn try_close(&self, id: Id) -> bool

Notifies the subscriber that a [span ID] has been dropped, and returns true if there are now 0 IDs that refer to that span.

pub fn current_span(&self) -> Current

Returns a type representing this subscriber’s view of the current span.

pub unsafe fn downcast_raw(&self, id: TypeId) -> Option<*const ()>

If self is the same type as the provided TypeId, returns an untyped *const pointer to that type. Otherwise, returns None.