Enum RustBacktrace 

#[repr(u8)]
pub enum RustBacktrace {
    Disabled = 1,
    Enabled = 2,
    Full = 3,
}

Whether backtrace capture is enabled, and how verbosely it should render.

Resolved once from the environment (see rust_backtrace) following the same convention as std: RUST_LIB_BACKTRACE is consulted first and, if unset, RUST_BACKTRACE.

Variants

Disabled = 1

Capture disabled — no frames are recorded.

Enabled = 2

Capture enabled, rendered as the trimmed “short” view.

Full = 3

Capture enabled, rendered untrimmed — every frame is shown.

Implementations

impl RustBacktrace

pub fn detect_opt() -> Option<Self>

The environment-derived setting, or None when neither RUST_LIB_BACKTRACE nor RUST_BACKTRACE is set. The environment is read once and cached for the life of the process.

pub fn detect_panic_opt() -> Option<Self>

Panic-path detection: consults only RUST_BACKTRACE, mirroring std’s panic handler. RUST_LIB_BACKTRACE deliberately has no effect here — it exists to control library error capture independently of panics.

pub const fn is_enabled(self) -> bool

Whether frames should be captured at all.

pub const fn is_full(self) -> bool

Whether rendering should show every frame, skipping the trimming that hides capture machinery and runtime setup/teardown frames.

Trait Implementations

impl Clone for RustBacktrace

fn clone(&self) -> RustBacktrace

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RustBacktrace

impl Debug for RustBacktrace

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

Formats the value using the given formatter.

impl Eq for RustBacktrace

impl PartialEq for RustBacktrace

fn eq(&self, other: &RustBacktrace) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RustBacktrace