[−][src]Struct wasmtime::FrameInfo
Description of a frame in a backtrace for a Trap
.
Whenever a WebAssembly trap occurs an instance of Trap
is created. Each
Trap
has a backtrace of the WebAssembly frames that led to the trap, and
each frame is described by this structure.
Methods
impl FrameInfo
[src]
pub fn func_index(&self) -> u32
[src]
Returns the WebAssembly function index for this frame.
This function index is the index in the function index space of the WebAssembly module that this frame comes from.
pub fn module_name(&self) -> Option<&str>
[src]
Returns the identifer of the module that this frame is for.
Module identifiers are present in the name
section of a WebAssembly
binary, but this may not return the exact item in the name
section.
Module names can be overwritten at construction time or perhaps inferred
from file names. The primary purpose of this function is to assist in
debugging and therefore may be tweaked over time.
This function returns None
when no name can be found or inferred.
pub fn func_name(&self) -> Option<&str>
[src]
Returns a descriptive name of the function for this frame, if one is available.
The name of this function may come from the name
section of the
WebAssembly binary, or wasmtime may try to infer a better name for it if
not available, for example the name of the export if it's exported.
This return value is primarily used for debugging and human-readable purposes for things like traps. Note that the exact return value may be tweaked over time here and isn't guaranteed to be something in particular about a wasm module due to its primary purpose of assisting in debugging.
This function returns None
when no name could be inferred.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for FrameInfo
impl Send for FrameInfo
impl Sync for FrameInfo
impl Unpin for FrameInfo
impl UnwindSafe for FrameInfo
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,