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Tracing

[<Interface>]
type Tracing =
    abstract member categories: string
    abstract member enabled: bool
    static member Create (categories: string, disable: unit -> unit, enable: unit -> unit, enabled: bool) : Tracing
    abstract member disable () : unit
    abstract member enable () : unit
AssemblyXantham.Fable.Node
Attributes[<Interface>]

The Tracing object is used to enable or disable tracing for sets of categories. Instances are created using the trace_events.createTracing() method.

When created, the Tracing object is disabled. Calling the tracing.enable() method adds the categories to the set of enabled trace event categories. Calling tracing.disable() will remove the categories from the set of enabled trace event categories.

Properties

abstract member categories: string

A comma-separated list of the trace event categories covered by this Tracing object.

@since v10.0.0

abstract member enabled: bool

true only if the Tracing object has been enabled.

@since v10.0.0

Methods

static member Create (categories: string, disable: unit -> unit, enable: unit -> unit, enabled: bool) : Tracing
abstract member disable () : unit

Disables this Tracing object.

Only trace event categories not covered by other enabled Tracing objects and not specified by the --trace-event-categories flag will be disabled.

import trace_events from 'node:trace_events';
const t1 = trace_events.createTracing({ categories: ['node', 'v8'] });
const t2 = trace_events.createTracing({ categories: ['node.perf', 'node'] });
t1.enable();
t2.enable();

// Prints 'node,node.perf,v8'
console.log(trace_events.getEnabledCategories());

t2.disable(); // Will only disable emission of the 'node.perf' category

// Prints 'node,v8'
console.log(trace_events.getEnabledCategories());

@since v10.0.0

abstract member enable () : unit

Enables this Tracing object for the set of categories covered by the Tracing object.

@since v10.0.0