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Add helper methods to UnwindAction

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This commit is contained in:
Gary Guo 2021-08-26 04:55:54 +01:00
parent 20ca20e7f8
commit 7c07a5dbd9
1 changed files with 18 additions and 6 deletions
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24
src/abi.rs
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@ -9,7 +9,7 @@ use crate::frame::Frame;
use crate::util::*;
#[repr(transparent)]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
#[derive(Clone, Copy, PartialEq, Eq)]
pub struct UnwindReasonCode(c_int);
#[allow(unused)]
@ -26,12 +26,10 @@ impl UnwindReasonCode {
}
#[repr(transparent)]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
#[derive(Clone, Copy, PartialEq, Eq)]
pub struct UnwindAction(c_int);
#[allow(unused)]
impl UnwindAction {
pub const NONE: Self = Self(0);
pub const SEARCH_PHASE: Self = Self(1);
pub const CLEANUP_PHASE: Self = Self(2);
pub const HANDLER_FRAME: Self = Self(4);
@ -41,11 +39,25 @@ impl UnwindAction {
impl ops::BitOr for UnwindAction {
type Output = Self;
#[inline]
fn bitor(self, rhs: Self) -> Self {
Self(self.0 | rhs.0)
}
}
impl UnwindAction {
#[inline]
pub const fn empty() -> Self {
Self(0)
}
#[inline]
pub const fn contains(&self, other: Self) -> bool {
self.0 & other.0 != 0
}
}
pub type UnwindExceptionCleanupFn = unsafe extern "C" fn(UnwindReasonCode, *mut UnwindException);
pub type UnwindStopFn = unsafe extern "C" fn(
@ -234,7 +246,7 @@ fn raise_exception_phase2(
| if is_handler {
UnwindAction::HANDLER_FRAME
} else {
UnwindAction::NONE
UnwindAction::empty()
},
exception.exception_class,
exception,
@ -295,7 +307,7 @@ unsafe fn force_unwind_phase2(
| if frame.is_none() {
UnwindAction::END_OF_STACK
} else {
UnwindAction::NONE
UnwindAction::empty()
},
exception.exception_class,
exception,