Struct backtrace::Frame

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pub struct Frame { /* private fields */ }
Expand description

A trait representing one frame of a backtrace, yielded to the trace function of this crate.

The tracing function’s closure will be yielded frames, and the frame is virtually dispatched as the underlying implementation is not always known until runtime.

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impl Frame

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pub fn ip(&self) -> *mut c_void

Returns the current instruction pointer of this frame.

This is normally the next instruction to execute in the frame, but not all implementations list this with 100% accuracy (but it’s generally pretty close).

It is recommended to pass this value to backtrace::resolve to turn it into a symbol name.

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pub fn sp(&self) -> *mut c_void

Returns the current stack pointer of this frame.

In the case that a backend cannot recover the stack pointer for this frame, a null pointer is returned.

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pub fn symbol_address(&self) -> *mut c_void

Returns the starting symbol address of the frame of this function.

This will attempt to rewind the instruction pointer returned by ip to the start of the function, returning that value. In some cases, however, backends will just return ip from this function.

The returned value can sometimes be used if backtrace::resolve failed on the ip given above.

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pub fn module_base_address(&self) -> Option<*mut c_void>

Returns the base address of the module to which the frame belongs.

Trait Implementations§

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impl Clone for Frame

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fn clone(&self) -> Frame

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Frame

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

Formats the value using the given formatter. Read more
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impl From<Frame> for BacktraceFrame

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fn from(frame: Frame) -> BacktraceFrame

Converts to this type from the input type.

Auto Trait Implementations§

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impl Freeze for Frame

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impl RefUnwindSafe for Frame

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impl Send for Frame

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impl Sync for Frame

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impl Unpin for Frame

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impl UnwindSafe for Frame

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.