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profiler_types.ts
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/*!
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
// Note: ideally we would roll these types into the `profiler.ts`. During the update to TS 5.5
// they had to be moved out into a separate file, because `@microsoft/api-extractor` was throwing
// an error saying `Unable to follow symbol for "Profiler"`.
/**
* Profiler events is an enum used by the profiler to distinguish between different calls of user
* code invoked throughout the application lifecycle.
*/
export const enum ProfilerEvent {
/**
* Corresponds to the point in time before the runtime has called the template function of a
* component with `RenderFlags.Create`.
*/
TemplateCreateStart,
/**
* Corresponds to the point in time after the runtime has called the template function of a
* component with `RenderFlags.Create`.
*/
TemplateCreateEnd,
/**
* Corresponds to the point in time before the runtime has called the template function of a
* component with `RenderFlags.Update`.
*/
TemplateUpdateStart,
/**
* Corresponds to the point in time after the runtime has called the template function of a
* component with `RenderFlags.Update`.
*/
TemplateUpdateEnd,
/**
* Corresponds to the point in time before the runtime has called a lifecycle hook of a component
* or directive.
*/
LifecycleHookStart,
/**
* Corresponds to the point in time after the runtime has called a lifecycle hook of a component
* or directive.
*/
LifecycleHookEnd,
/**
* Corresponds to the point in time before the runtime has evaluated an expression associated with
* an event or an output.
*/
OutputStart,
/**
* Corresponds to the point in time after the runtime has evaluated an expression associated with
* an event or an output.
*/
OutputEnd,
/**
* Corresponds to the point in time just before application bootstrap.
*/
BootstrapApplicationStart,
/**
* Corresponds to the point in time after application bootstrap.
*/
BootstrapApplicationEnd,
/**
* Corresponds to the point in time just before root component bootstrap.
*/
BootstrapComponentStart,
/**
* Corresponds to the point in time after root component bootstrap.
*/
BootstrapComponentEnd,
/**
* Corresponds to the point in time just before Angular starts a change detection tick.
*/
ChangeDetectionStart,
/**
* Corresponds to the point in time after Angular ended a change detection tick.
*/
ChangeDetectionEnd,
/**
* Corresponds to the point in time just before Angular starts a new synchronization pass of change detection tick.
*/
ChangeDetectionSyncStart,
/**
* Corresponds to the point in time after Angular ended a synchronization pass.
*/
ChangeDetectionSyncEnd,
/**
* Corresponds to the point in time just before Angular executes after render hooks.
*/
AfterRenderHooksStart,
/**
* Corresponds to the point in time after Angular executed after render hooks.
*/
AfterRenderHooksEnd,
/**
* Corresponds to the point in time just before Angular starts processing a component (create or update).
*/
ComponentStart,
/**
* Corresponds to the point in time after Angular finished processing a component.
*/
ComponentEnd,
/**
* Corresponds to the point in time just before a defer block transitions between states.
*/
DeferBlockStateStart,
/**
* Corresponds to the point in time after a defer block transitioned between states.
*/
DeferBlockStateEnd,
/**
* Corresponds to the point in time just before a component instance is created dynamically.
*/
DynamicComponentStart,
/**
* Corresponds to the point in time after a a component instance is created dynamically.
*/
DynamicComponentEnd,
/**
* Corresponds to the point in time before the runtime has called the host bindings function
* of a directive.
*/
HostBindingsUpdateStart,
/**
* Corresponds to the point in time after the runtime has called the host bindings function
* of a directive.
*/
HostBindingsUpdateEnd,
}
/**
* Profiler function which the runtime will invoke before and after user code.
*/
export interface Profiler {
(event: ProfilerEvent, instance?: {} | null, eventFn?: Function): void;
}