Struct DiagnosticsLogging 

pub struct DiagnosticsLogging {
    pub help: bool,
    pub style_tree: bool,
    pub rule_tree: bool,
    pub flow_tree: bool,
    pub stacking_context_tree: bool,
    pub scroll_tree: bool,
    pub display_list: bool,
    pub relayout_event: bool,
    pub profile_script_events: bool,
    pub style_statistics: bool,
    pub gc_profile: bool,
    pub progressive_web_metrics: bool,
}

Debug options for Servo, currently set on the command line with -Z

Fields

help: bool

List all the debug options.

style_tree: bool

Print the DOM after each restyle.

rule_tree: bool

Log the rule tree.

flow_tree: bool

Log the fragment tree after each layout.

stacking_context_tree: bool

Log the stacking context tree after each layout.

scroll_tree: bool

Log the scroll tree after each layout.

Displays the hierarchy of scrollable areas and their properties.

display_list: bool

Log the display list after each layout.

relayout_event: bool

Log notifications when a relayout occurs.

profile_script_events: bool

Periodically log on which events script threads spend their processing time.

style_statistics: bool

Log style sharing cache statistics to after each restyle.

Shows hit/miss statistics for the style sharing cache

gc_profile: bool

Log garbage collection passes and their durations.

progressive_web_metrics: bool

Log Progressive Web Metrics.

Implementations

impl DiagnosticsLogging

pub fn new() -> Self

Create a new DiagnosticsLogging configuration.

In non-production builds, this will automatically read and parse the SERVO_DIAGNOSTICS environment variable if it is set.

fn print_debug_options_usage(app: &str)

Print available diagnostic logging options and their descriptions.

pub fn extend_from_string(&mut self, option_string: &str) -> Result<(), String>

Extend the current configuration with additional options.

Parses the string and merges any enabled options into the current configuration.

Trait Implementations

impl Clone for DiagnosticsLogging

fn clone(&self) -> DiagnosticsLogging

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiagnosticsLogging

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

Formats the value using the given formatter.

impl Default for DiagnosticsLogging

fn default() -> DiagnosticsLogging

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DiagnosticsLogging

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DiagnosticsLogging

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.