Trait wasmer_vm::TrapHandler

pub unsafe trait TrapHandler {
    fn as_any(&self) -> &dyn Any;
    fn custom_trap_handler(&self, call: &dyn Fn(&TrapHandlerFn) -> bool) -> bool;
}

A package of functionality needed by catch_traps to figure out what to do when handling a trap.

Note that this is an unsafe trait at least because it’s being run in the context of a synchronous signal handler, so it needs to be careful to not access too much state in answering these queries.

Required methods

fn as_any(&self) -> &dyn Any

Converts this object into an Any to dynamically check its type.

fn custom_trap_handler(&self, call: &dyn Fn(&TrapHandlerFn) -> bool) -> bool

Uses call to call a custom signal handler, if one is specified.

Returns true if call returns true, otherwise returns false.

Implementors