Struct Diagnostics 

pub struct Diagnostics { /* private fields */ }

What a platform shares with the panel of a DiagnosticsHost: it records frames here, says how to describe the GPU, and opens the panel.

Frames are kept out of reactive state on purpose: recording one must never ask for another.

Implementations

impl Diagnostics

pub fn is_open(&self) -> bool

Whether the panel is open.

pub fn set_open(&self, open: bool)

Opens or closes the panel.

pub fn toggle(&self)

Opens the panel if it is closed and closes it if it is open.

pub fn start_test(&self)

Opens the panel and redraws the window nonstop for a few seconds, to tell the person in plain words how fast this machine draws this app.

pub fn record(&self, sample: FrameSample)

Adds a frame to the log.

pub fn set_view_costs(&self, costs: Vec<ViewCost>)

Says what each type of view cost in the latest build; see Ui::view_costs.

pub fn trace_json(&self) -> String

The latest frames in the Trace Event format, which Perfetto opens.

pub fn set_report_source(&self, source: impl Fn() -> DiagnosticReport + 'static)

Sets how to describe the GPU. Describing it can take a moment, so source only runs when the panel first needs it, and again after the next call here.

pub fn set_bug_reporter( &self, new_issue: impl Into<String>, open: impl Fn(&str) -> Result<(), String> + 'static, )

Adds a button to the panel that starts a bug report on the new_issue page. open shows a URL to the person, in a browser on the desktop, and says why when it cannot. Nothing is sent: the person reviews and submits on that page.

pub fn report(&self) -> Option<DiagnosticReport>

The report, gathering it if needed; None before a source is set.

Trait Implementations

impl Clone for Diagnostics

fn clone(&self) -> Diagnostics

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Diagnostics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Diagnostics

fn default() -> Self

Returns the “default value” for a type.