Trait backtrace::Symbol
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[src]
pub trait Symbol {
fn name(&self) -> Option<&[u8]> { ... }
fn addr(&self) -> Option<*mut c_void> { ... }
fn filename(&self) -> Option<&[u8]> { ... }
fn lineno(&self) -> Option<u32> { ... }
}A trait representing the resolution of a symbol in a file.
This trait is yielded as a trait object to the closure given to the
backtrace::resolve function, and it is virtually dispatched as it's
unknown which implementation is behind it.
A symbol can give contextual information about a funciton, for example the
name, filename, line number, precise address, etc. Not all information is
always available in a symbol, however, so all methods return an Option.
Provided Methods
fn name(&self) -> Option<&[u8]>
Returns the name of this function as a byte array (may not always be valid UTF-8).
fn addr(&self) -> Option<*mut c_void>
Returns the starting address of this function.
fn filename(&self) -> Option<&[u8]>
Returns the file name where this function was defined.
This is currently only available when libbacktrace is being used (e.g.
unix platforms other than OSX) and when a binary is compiled with
debuginfo. If neither of these conditions is met then this will likely
return None.
fn lineno(&self) -> Option<u32>
Returns the line number for where this symbol is currently executing.
This return value is typically Some if filename returns Some, and
is consequently subject to similar caveats.