diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/expectations/tests/bitfield_pragma_packed.rs | 211 | ||||
| -rw-r--r-- | tests/headers/bitfield_pragma_packed.h | 9 |
2 files changed, 220 insertions, 0 deletions
diff --git a/tests/expectations/tests/bitfield_pragma_packed.rs b/tests/expectations/tests/bitfield_pragma_packed.rs new file mode 100644 index 00000000..27cd90f1 --- /dev/null +++ b/tests/expectations/tests/bitfield_pragma_packed.rs @@ -0,0 +1,211 @@ +#![allow( + dead_code, + non_snake_case, + non_camel_case_types, + non_upper_case_globals +)] + +#[repr(C)] +#[derive(Copy, Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)] +pub struct __BindgenBitfieldUnit<Storage> { + storage: Storage, +} +impl<Storage> __BindgenBitfieldUnit<Storage> { + #[inline] + pub const fn new(storage: Storage) -> Self { + Self { storage } + } +} +impl<Storage> __BindgenBitfieldUnit<Storage> +where + Storage: AsRef<[u8]> + AsMut<[u8]>, +{ + #[inline] + pub fn get_bit(&self, index: usize) -> bool { + debug_assert!(index / 8 < self.storage.as_ref().len()); + let byte_index = index / 8; + let byte = self.storage.as_ref()[byte_index]; + let bit_index = if cfg!(target_endian = "big") { + 7 - (index % 8) + } else { + index % 8 + }; + let mask = 1 << bit_index; + byte & mask == mask + } + #[inline] + pub fn set_bit(&mut self, index: usize, val: bool) { + debug_assert!(index / 8 < self.storage.as_ref().len()); + let byte_index = index / 8; + let byte = &mut self.storage.as_mut()[byte_index]; + let bit_index = if cfg!(target_endian = "big") { + 7 - (index % 8) + } else { + index % 8 + }; + let mask = 1 << bit_index; + if val { + *byte |= mask; + } else { + *byte &= !mask; + } + } + #[inline] + pub fn get(&self, bit_offset: usize, bit_width: u8) -> u64 { + debug_assert!(bit_width <= 64); + debug_assert!(bit_offset / 8 < self.storage.as_ref().len()); + debug_assert!( + (bit_offset + (bit_width as usize)) / 8 <= + self.storage.as_ref().len() + ); + let mut val = 0; + for i in 0..(bit_width as usize) { + if self.get_bit(i + bit_offset) { + let index = if cfg!(target_endian = "big") { + bit_width as usize - 1 - i + } else { + i + }; + val |= 1 << index; + } + } + val + } + #[inline] + pub fn set(&mut self, bit_offset: usize, bit_width: u8, val: u64) { + debug_assert!(bit_width <= 64); + debug_assert!(bit_offset / 8 < self.storage.as_ref().len()); + debug_assert!( + (bit_offset + (bit_width as usize)) / 8 <= + self.storage.as_ref().len() + ); + for i in 0..(bit_width as usize) { + let mask = 1 << i; + let val_bit_is_set = val & mask == mask; + let index = if cfg!(target_endian = "big") { + bit_width as usize - 1 - i + } else { + i + }; + self.set_bit(index + bit_offset, val_bit_is_set); + } + } +} +#[repr(C, packed)] +#[derive(Debug, Default, Copy, Clone)] +pub struct Struct { + pub _bitfield_align_1: [u8; 0], + pub _bitfield_1: __BindgenBitfieldUnit<[u8; 4usize]>, +} +#[test] +fn bindgen_test_layout_Struct() { + assert_eq!( + ::std::mem::size_of::<Struct>(), + 4usize, + concat!("Size of: ", stringify!(Struct)) + ); + assert_eq!( + ::std::mem::align_of::<Struct>(), + 1usize, + concat!("Alignment of ", stringify!(Struct)) + ); +} +impl Struct { + #[inline] + pub fn a(&self) -> ::std::os::raw::c_uchar { + unsafe { + ::std::mem::transmute(self._bitfield_1.get(0usize, 1u8) as u8) + } + } + #[inline] + pub fn set_a(&mut self, val: ::std::os::raw::c_uchar) { + unsafe { + let val: u8 = ::std::mem::transmute(val); + self._bitfield_1.set(0usize, 1u8, val as u64) + } + } + #[inline] + pub fn b(&self) -> ::std::os::raw::c_uchar { + unsafe { + ::std::mem::transmute(self._bitfield_1.get(1usize, 1u8) as u8) + } + } + #[inline] + pub fn set_b(&mut self, val: ::std::os::raw::c_uchar) { + unsafe { + let val: u8 = ::std::mem::transmute(val); + self._bitfield_1.set(1usize, 1u8, val as u64) + } + } + #[inline] + pub fn c(&self) -> ::std::os::raw::c_uchar { + unsafe { + ::std::mem::transmute(self._bitfield_1.get(2usize, 6u8) as u8) + } + } + #[inline] + pub fn set_c(&mut self, val: ::std::os::raw::c_uchar) { + unsafe { + let val: u8 = ::std::mem::transmute(val); + self._bitfield_1.set(2usize, 6u8, val as u64) + } + } + #[inline] + pub fn d(&self) -> ::std::os::raw::c_ushort { + unsafe { + ::std::mem::transmute(self._bitfield_1.get(8usize, 16u8) as u16) + } + } + #[inline] + pub fn set_d(&mut self, val: ::std::os::raw::c_ushort) { + unsafe { + let val: u16 = ::std::mem::transmute(val); + self._bitfield_1.set(8usize, 16u8, val as u64) + } + } + #[inline] + pub fn e(&self) -> ::std::os::raw::c_uchar { + unsafe { + ::std::mem::transmute(self._bitfield_1.get(24usize, 8u8) as u8) + } + } + #[inline] + pub fn set_e(&mut self, val: ::std::os::raw::c_uchar) { + unsafe { + let val: u8 = ::std::mem::transmute(val); + self._bitfield_1.set(24usize, 8u8, val as u64) + } + } + #[inline] + pub fn new_bitfield_1( + a: ::std::os::raw::c_uchar, + b: ::std::os::raw::c_uchar, + c: ::std::os::raw::c_uchar, + d: ::std::os::raw::c_ushort, + e: ::std::os::raw::c_uchar, + ) -> __BindgenBitfieldUnit<[u8; 4usize]> { + let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 4usize]> = + Default::default(); + __bindgen_bitfield_unit.set(0usize, 1u8, { + let a: u8 = unsafe { ::std::mem::transmute(a) }; + a as u64 + }); + __bindgen_bitfield_unit.set(1usize, 1u8, { + let b: u8 = unsafe { ::std::mem::transmute(b) }; + b as u64 + }); + __bindgen_bitfield_unit.set(2usize, 6u8, { + let c: u8 = unsafe { ::std::mem::transmute(c) }; + c as u64 + }); + __bindgen_bitfield_unit.set(8usize, 16u8, { + let d: u16 = unsafe { ::std::mem::transmute(d) }; + d as u64 + }); + __bindgen_bitfield_unit.set(24usize, 8u8, { + let e: u8 = unsafe { ::std::mem::transmute(e) }; + e as u64 + }); + __bindgen_bitfield_unit + } +} diff --git a/tests/headers/bitfield_pragma_packed.h b/tests/headers/bitfield_pragma_packed.h new file mode 100644 index 00000000..b4011ca8 --- /dev/null +++ b/tests/headers/bitfield_pragma_packed.h @@ -0,0 +1,9 @@ +#pragma pack(push, 1) +struct Struct { + unsigned char a : 1; + unsigned char b : 1; + unsigned char c : 6; + unsigned short int d : 16; + unsigned char e : 8; +}; +#pragma pack(pop) |