Struct gimli::read::UnwindContext

pub struct UnwindContext<R: Reader, A: UnwindContextStorage<R> = StoreOnHeap> { /* private fields */ }

Common context needed when evaluating the call frame unwinding information.

This structure can be large so it is advisable to place it on the heap. To avoid re-allocating the context multiple times when evaluating multiple CFI programs, it can be reused.

use gimli::{UnwindContext, UnwindTable};

// An uninitialized context.
let mut ctx = Box::new(UnwindContext::new());

// Initialize the context by evaluating the CIE's initial instruction program,
// and generate the unwind table.
let mut table = some_fde.rows(&eh_frame, &bases, &mut ctx)?;
while let Some(row) = table.next_row()? {
    // Do stuff with each row...
}

Implementations

impl<R: Reader> UnwindContext<R>

pub fn new() -> Self

Construct a new call frame unwinding context.

impl<R: Reader, A: UnwindContextStorage<R>> UnwindContext<R, A>

Signal Safe Methods

These methods are guaranteed not to allocate, acquire locks, or perform any other signal-unsafe operations, if an non-allocating storage is used.

pub fn new_in() -> Self

Construct a new call frame unwinding context.

Trait Implementations

impl<R: Clone + Reader, A: Clone + UnwindContextStorage<R>> Clone for UnwindContext<R, A>where
    A::Stack: Clone,

fn clone(&self) -> UnwindContext<R, A>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<R: Reader, S: UnwindContextStorage<R>> Debug for UnwindContext<R, S>

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

Formats the value using the given formatter.

impl<R: Reader, A: UnwindContextStorage<R>> Default for UnwindContext<R, A>

fn default() -> Self

Returns the “default value” for a type.

impl<R: PartialEq + Reader, A: PartialEq + UnwindContextStorage<R>> PartialEq<UnwindContext<R, A>> for UnwindContext<R, A>where
    A::Stack: PartialEq,

fn eq(&self, other: &UnwindContext<R, A>) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<R: Eq + Reader, A: Eq + UnwindContextStorage<R>> Eq for UnwindContext<R, A>where
    A::Stack: Eq,

impl<R: Reader, A: UnwindContextStorage<R>> StructuralEq for UnwindContext<R, A>

impl<R: Reader, A: UnwindContextStorage<R>> StructuralPartialEq for UnwindContext<R, A>