summaryrefslogtreecommitdiffstats
path: root/third_party/rust/byteorder/src/lib.rs
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/rust/byteorder/src/lib.rs')
-rw-r--r--third_party/rust/byteorder/src/lib.rs802
1 files changed, 0 insertions, 802 deletions
diff --git a/third_party/rust/byteorder/src/lib.rs b/third_party/rust/byteorder/src/lib.rs
deleted file mode 100644
index a25bab6e0..000000000
--- a/third_party/rust/byteorder/src/lib.rs
+++ /dev/null
@@ -1,802 +0,0 @@
-/*!
-This crate provides convenience methods for encoding and decoding numbers
-in either big-endian or little-endian order.
-
-The organization of the crate is pretty simple. A trait, `ByteOrder`, specifies
-byte conversion methods for each type of number in Rust (sans numbers that have
-a platform dependent size like `usize` and `isize`). Two types, `BigEndian`
-and `LittleEndian` implement these methods. Finally, `ReadBytesExt` and
-`WriteBytesExt` provide convenience methods available to all types that
-implement `Read` and `Write`.
-
-# Examples
-
-Read unsigned 16 bit big-endian integers from a `Read` type:
-
-```rust
-use std::io::Cursor;
-use byteorder::{BigEndian, ReadBytesExt};
-
-let mut rdr = Cursor::new(vec![2, 5, 3, 0]);
-// Note that we use type parameters to indicate which kind of byte order
-// we want!
-assert_eq!(517, rdr.read_u16::<BigEndian>().unwrap());
-assert_eq!(768, rdr.read_u16::<BigEndian>().unwrap());
-```
-
-Write unsigned 16 bit little-endian integers to a `Write` type:
-
-```rust
-use byteorder::{LittleEndian, WriteBytesExt};
-
-let mut wtr = vec![];
-wtr.write_u16::<LittleEndian>(517).unwrap();
-wtr.write_u16::<LittleEndian>(768).unwrap();
-assert_eq!(wtr, vec![5, 2, 0, 3]);
-```
-*/
-
-#![crate_name = "byteorder"]
-#![doc(html_root_url = "http://burntsushi.net/rustdoc/byteorder")]
-
-#![cfg_attr(not(feature = "std"), no_std)]
-
-#![deny(missing_docs)]
-
-#[cfg(feature = "std")]
-extern crate core;
-
-use core::mem::transmute;
-use core::ptr::copy_nonoverlapping;
-
-#[cfg(feature = "std")]
-pub use new::{ReadBytesExt, WriteBytesExt};
-
-#[cfg(feature = "std")]
-mod new;
-
-#[inline]
-fn extend_sign(val: u64, nbytes: usize) -> i64 {
- let shift = (8 - nbytes) * 8;
- (val << shift) as i64 >> shift
-}
-
-#[inline]
-fn unextend_sign(val: i64, nbytes: usize) -> u64 {
- let shift = (8 - nbytes) * 8;
- (val << shift) as u64 >> shift
-}
-
-#[inline]
-fn pack_size(n: u64) -> usize {
- if n < 1 << 8 {
- 1
- } else if n < 1 << 16 {
- 2
- } else if n < 1 << 24 {
- 3
- } else if n < 1 << 32 {
- 4
- } else if n < 1 << 40 {
- 5
- } else if n < 1 << 48 {
- 6
- } else if n < 1 << 56 {
- 7
- } else {
- 8
- }
-}
-
-/// ByteOrder describes types that can serialize integers as bytes.
-///
-/// Note that `Self` does not appear anywhere in this trait's definition!
-/// Therefore, in order to use it, you'll need to use syntax like
-/// `T::read_u16(&[0, 1])` where `T` implements `ByteOrder`.
-///
-/// This crate provides two types that implement `ByteOrder`: `BigEndian`
-/// and `LittleEndian`.
-///
-/// # Examples
-///
-/// Write and read `u32` numbers in little endian order:
-///
-/// ```rust
-/// use byteorder::{ByteOrder, LittleEndian};
-///
-/// let mut buf = [0; 4];
-/// LittleEndian::write_u32(&mut buf, 1_000_000);
-/// assert_eq!(1_000_000, LittleEndian::read_u32(&buf));
-/// ```
-///
-/// Write and read `i16` numbers in big endian order:
-///
-/// ```rust
-/// use byteorder::{ByteOrder, BigEndian};
-///
-/// let mut buf = [0; 2];
-/// BigEndian::write_i16(&mut buf, -50_000);
-/// assert_eq!(-50_000, BigEndian::read_i16(&buf));
-/// ```
-pub trait ByteOrder {
- /// Reads an unsigned 16 bit integer from `buf`.
- ///
- /// Panics when `buf.len() < 2`.
- fn read_u16(buf: &[u8]) -> u16;
-
- /// Reads an unsigned 32 bit integer from `buf`.
- ///
- /// Panics when `buf.len() < 4`.
- fn read_u32(buf: &[u8]) -> u32;
-
- /// Reads an unsigned 64 bit integer from `buf`.
- ///
- /// Panics when `buf.len() < 8`.
- fn read_u64(buf: &[u8]) -> u64;
-
- /// Reads an unsigned n-bytes integer from `buf`.
- ///
- /// Panics when `nbytes < 1` or `nbytes > 8` or
- /// `buf.len() < nbytes`
- fn read_uint(buf: &[u8], nbytes: usize) -> u64;
-
- /// Writes an unsigned 16 bit integer `n` to `buf`.
- ///
- /// Panics when `buf.len() < 2`.
- fn write_u16(buf: &mut [u8], n: u16);
-
- /// Writes an unsigned 32 bit integer `n` to `buf`.
- ///
- /// Panics when `buf.len() < 4`.
- fn write_u32(buf: &mut [u8], n: u32);
-
- /// Writes an unsigned 64 bit integer `n` to `buf`.
- ///
- /// Panics when `buf.len() < 8`.
- fn write_u64(buf: &mut [u8], n: u64);
-
- /// Writes an unsigned integer `n` to `buf` using only `nbytes`.
- ///
- /// If `n` is not representable in `nbytes`, or if `nbytes` is `> 8`, then
- /// this method panics.
- fn write_uint(buf: &mut [u8], n: u64, nbytes: usize);
-
- /// Reads a signed 16 bit integer from `buf`.
- ///
- /// Panics when `buf.len() < 2`.
- #[inline]
- fn read_i16(buf: &[u8]) -> i16 {
- Self::read_u16(buf) as i16
- }
-
- /// Reads a signed 32 bit integer from `buf`.
- ///
- /// Panics when `buf.len() < 4`.
- #[inline]
- fn read_i32(buf: &[u8]) -> i32 {
- Self::read_u32(buf) as i32
- }
-
- /// Reads a signed 64 bit integer from `buf`.
- ///
- /// Panics when `buf.len() < 8`.
- #[inline]
- fn read_i64(buf: &[u8]) -> i64 {
- Self::read_u64(buf) as i64
- }
-
- /// Reads a signed n-bytes integer from `buf`.
- ///
- /// Panics when `nbytes < 1` or `nbytes > 8` or
- /// `buf.len() < nbytes`
- #[inline]
- fn read_int(buf: &[u8], nbytes: usize) -> i64 {
- extend_sign(Self::read_uint(buf, nbytes), nbytes)
- }
-
- /// Reads a IEEE754 single-precision (4 bytes) floating point number.
- ///
- /// Panics when `buf.len() < 4`.
- #[inline]
- fn read_f32(buf: &[u8]) -> f32 {
- unsafe { transmute(Self::read_u32(buf)) }
- }
-
- /// Reads a IEEE754 double-precision (8 bytes) floating point number.
- ///
- /// Panics when `buf.len() < 8`.
- #[inline]
- fn read_f64(buf: &[u8]) -> f64 {
- unsafe { transmute(Self::read_u64(buf)) }
- }
-
- /// Writes a signed 16 bit integer `n` to `buf`.
- ///
- /// Panics when `buf.len() < 2`.
- #[inline]
- fn write_i16(buf: &mut [u8], n: i16) {
- Self::write_u16(buf, n as u16)
- }
-
- /// Writes a signed 32 bit integer `n` to `buf`.
- ///
- /// Panics when `buf.len() < 4`.
- #[inline]
- fn write_i32(buf: &mut [u8], n: i32) {
- Self::write_u32(buf, n as u32)
- }
-
- /// Writes a signed 64 bit integer `n` to `buf`.
- ///
- /// Panics when `buf.len() < 8`.
- #[inline]
- fn write_i64(buf: &mut [u8], n: i64) {
- Self::write_u64(buf, n as u64)
- }
-
- /// Writes a signed integer `n` to `buf` using only `nbytes`.
- ///
- /// If `n` is not representable in `nbytes`, or if `nbytes` is `> 8`, then
- /// this method panics.
- #[inline]
- fn write_int(buf: &mut [u8], n: i64, nbytes: usize) {
- Self::write_uint(buf, unextend_sign(n, nbytes), nbytes)
- }
-
- /// Writes a IEEE754 single-precision (4 bytes) floating point number.
- ///
- /// Panics when `buf.len() < 4`.
- #[inline]
- fn write_f32(buf: &mut [u8], n: f32) {
- Self::write_u32(buf, unsafe { transmute(n) })
- }
-
- /// Writes a IEEE754 double-precision (8 bytes) floating point number.
- ///
- /// Panics when `buf.len() < 8`.
- #[inline]
- fn write_f64(buf: &mut [u8], n: f64) {
- Self::write_u64(buf, unsafe { transmute(n) })
- }
-}
-
-/// Defines big-endian serialization.
-///
-/// Note that this type has no value constructor. It is used purely at the
-/// type level.
-#[allow(missing_copy_implementations)] pub enum BigEndian {}
-
-/// Defines little-endian serialization.
-///
-/// Note that this type has no value constructor. It is used purely at the
-/// type level.
-#[allow(missing_copy_implementations)] pub enum LittleEndian {}
-
-/// Defines network byte order serialization.
-///
-/// Network byte order is defined by [RFC 1700][1] to be big-endian, and is
-/// referred to in several protocol specifications. This type is an alias of
-/// BigEndian.
-///
-/// [1]: https://tools.ietf.org/html/rfc1700
-///
-/// Note that this type has no value constructor. It is used purely at the
-/// type level.
-pub type NetworkEndian = BigEndian;
-
-/// Defines system native-endian serialization.
-///
-/// Note that this type has no value constructor. It is used purely at the
-/// type level.
-#[cfg(target_endian = "little")]
-pub type NativeEndian = LittleEndian;
-
-/// Defines system native-endian serialization.
-///
-/// Note that this type has no value constructor. It is used purely at the
-/// type level.
-#[cfg(target_endian = "big")]
-pub type NativeEndian = BigEndian;
-
-macro_rules! read_num_bytes {
- ($ty:ty, $size:expr, $src:expr, $which:ident) => ({
- assert!($size == ::core::mem::size_of::<$ty>());
- assert!($size <= $src.len());
- let mut data: $ty = 0;
- unsafe {
- copy_nonoverlapping(
- $src.as_ptr(),
- &mut data as *mut $ty as *mut u8,
- $size);
- }
- data.$which()
- });
-}
-
-macro_rules! write_num_bytes {
- ($ty:ty, $size:expr, $n:expr, $dst:expr, $which:ident) => ({
- assert!($size <= $dst.len());
- unsafe {
- // N.B. https://github.com/rust-lang/rust/issues/22776
- let bytes = transmute::<_, [u8; $size]>($n.$which());
- copy_nonoverlapping((&bytes).as_ptr(), $dst.as_mut_ptr(), $size);
- }
- });
-}
-
-impl ByteOrder for BigEndian {
- #[inline]
- fn read_u16(buf: &[u8]) -> u16 {
- read_num_bytes!(u16, 2, buf, to_be)
- }
-
- #[inline]
- fn read_u32(buf: &[u8]) -> u32 {
- read_num_bytes!(u32, 4, buf, to_be)
- }
-
- #[inline]
- fn read_u64(buf: &[u8]) -> u64 {
- read_num_bytes!(u64, 8, buf, to_be)
- }
-
- #[inline]
- fn read_uint(buf: &[u8], nbytes: usize) -> u64 {
- assert!(1 <= nbytes && nbytes <= 8 && nbytes <= buf.len());
- let mut out = [0u8; 8];
- let ptr_out = out.as_mut_ptr();
- unsafe {
- copy_nonoverlapping(
- buf.as_ptr(), ptr_out.offset((8 - nbytes) as isize), nbytes);
- (*(ptr_out as *const u64)).to_be()
- }
- }
-
- #[inline]
- fn write_u16(buf: &mut [u8], n: u16) {
- write_num_bytes!(u16, 2, n, buf, to_be);
- }
-
- #[inline]
- fn write_u32(buf: &mut [u8], n: u32) {
- write_num_bytes!(u32, 4, n, buf, to_be);
- }
-
- #[inline]
- fn write_u64(buf: &mut [u8], n: u64) {
- write_num_bytes!(u64, 8, n, buf, to_be);
- }
-
- #[inline]
- fn write_uint(buf: &mut [u8], n: u64, nbytes: usize) {
- assert!(pack_size(n) <= nbytes && nbytes <= 8);
- assert!(nbytes <= buf.len());
- unsafe {
- let bytes: [u8; 8] = transmute(n.to_be());
- copy_nonoverlapping(
- bytes.as_ptr().offset((8 - nbytes) as isize),
- buf.as_mut_ptr(),
- nbytes);
- }
- }
-}
-
-impl ByteOrder for LittleEndian {
- #[inline]
- fn read_u16(buf: &[u8]) -> u16 {
- read_num_bytes!(u16, 2, buf, to_le)
- }
-
- #[inline]
- fn read_u32(buf: &[u8]) -> u32 {
- read_num_bytes!(u32, 4, buf, to_le)
- }
-
- #[inline]
- fn read_u64(buf: &[u8]) -> u64 {
- read_num_bytes!(u64, 8, buf, to_le)
- }
-
- #[inline]
- fn read_uint(buf: &[u8], nbytes: usize) -> u64 {
- assert!(1 <= nbytes && nbytes <= 8 && nbytes <= buf.len());
- let mut out = [0u8; 8];
- let ptr_out = out.as_mut_ptr();
- unsafe {
- copy_nonoverlapping(buf.as_ptr(), ptr_out, nbytes);
- (*(ptr_out as *const u64)).to_le()
- }
- }
-
- #[inline]
- fn write_u16(buf: &mut [u8], n: u16) {
- write_num_bytes!(u16, 2, n, buf, to_le);
- }
-
- #[inline]
- fn write_u32(buf: &mut [u8], n: u32) {
- write_num_bytes!(u32, 4, n, buf, to_le);
- }
-
- #[inline]
- fn write_u64(buf: &mut [u8], n: u64) {
- write_num_bytes!(u64, 8, n, buf, to_le);
- }
-
- #[inline]
- fn write_uint(buf: &mut [u8], n: u64, nbytes: usize) {
- assert!(pack_size(n as u64) <= nbytes && nbytes <= 8);
- assert!(nbytes <= buf.len());
- unsafe {
- let bytes: [u8; 8] = transmute(n.to_le());
- copy_nonoverlapping(bytes.as_ptr(), buf.as_mut_ptr(), nbytes);
- }
- }
-}
-
-#[cfg(test)]
-mod test {
- extern crate quickcheck;
- extern crate rand;
-
- use test::rand::thread_rng;
- use test::quickcheck::{QuickCheck, StdGen, Testable};
-
- const U64_MAX: u64 = ::std::u64::MAX;
- const I64_MAX: u64 = ::std::i64::MAX as u64;
-
- fn qc_sized<A: Testable>(f: A, size: u64) {
- QuickCheck::new()
- .gen(StdGen::new(thread_rng(), size as usize))
- .tests(1_00)
- .max_tests(10_000)
- .quickcheck(f);
- }
-
- macro_rules! qc_byte_order {
- ($name:ident, $ty_int:ident, $max:expr,
- $bytes:expr, $read:ident, $write:ident) => (
- mod $name {
- use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
- use super::qc_sized;
-
- #[test]
- fn big_endian() {
- let max = ($max - 1) >> (8 * (8 - $bytes));
- fn prop(n: $ty_int) -> bool {
- let mut buf = [0; 8];
- BigEndian::$write(&mut buf, n, $bytes);
- n == BigEndian::$read(&mut buf[..$bytes], $bytes)
- }
- qc_sized(prop as fn($ty_int) -> bool, max);
- }
-
- #[test]
- fn little_endian() {
- let max = ($max - 1) >> (8 * (8 - $bytes));
- fn prop(n: $ty_int) -> bool {
- let mut buf = [0; 8];
- LittleEndian::$write(&mut buf, n, $bytes);
- n == LittleEndian::$read(&mut buf[..$bytes], $bytes)
- }
- qc_sized(prop as fn($ty_int) -> bool, max);
- }
-
- #[test]
- fn native_endian() {
- let max = ($max - 1) >> (8 * (8 - $bytes));
- fn prop(n: $ty_int) -> bool {
- let mut buf = [0; 8];
- NativeEndian::$write(&mut buf, n, $bytes);
- n == NativeEndian::$read(&mut buf[..$bytes], $bytes)
- }
- qc_sized(prop as fn($ty_int) -> bool, max);
- }
- }
- );
- ($name:ident, $ty_int:ident, $max:expr,
- $read:ident, $write:ident) => (
- mod $name {
- use std::mem::size_of;
- use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
- use super::qc_sized;
-
- #[test]
- fn big_endian() {
- fn prop(n: $ty_int) -> bool {
- let bytes = size_of::<$ty_int>();
- let mut buf = [0; 8];
- BigEndian::$write(&mut buf[8 - bytes..], n);
- n == BigEndian::$read(&mut buf[8 - bytes..])
- }
- qc_sized(prop as fn($ty_int) -> bool, $max - 1);
- }
-
- #[test]
- fn little_endian() {
- fn prop(n: $ty_int) -> bool {
- let bytes = size_of::<$ty_int>();
- let mut buf = [0; 8];
- LittleEndian::$write(&mut buf[..bytes], n);
- n == LittleEndian::$read(&mut buf[..bytes])
- }
- qc_sized(prop as fn($ty_int) -> bool, $max - 1);
- }
-
- #[test]
- fn native_endian() {
- fn prop(n: $ty_int) -> bool {
- let bytes = size_of::<$ty_int>();
- let mut buf = [0; 8];
- NativeEndian::$write(&mut buf[..bytes], n);
- n == NativeEndian::$read(&mut buf[..bytes])
- }
- qc_sized(prop as fn($ty_int) -> bool, $max - 1);
- }
- }
- );
- }
-
- qc_byte_order!(prop_u16, u16, ::std::u16::MAX as u64, read_u16, write_u16);
- qc_byte_order!(prop_i16, i16, ::std::i16::MAX as u64, read_i16, write_i16);
- qc_byte_order!(prop_u32, u32, ::std::u32::MAX as u64, read_u32, write_u32);
- qc_byte_order!(prop_i32, i32, ::std::i32::MAX as u64, read_i32, write_i32);
- qc_byte_order!(prop_u64, u64, ::std::u64::MAX as u64, read_u64, write_u64);
- qc_byte_order!(prop_i64, i64, ::std::i64::MAX as u64, read_i64, write_i64);
- qc_byte_order!(prop_f32, f32, ::std::u64::MAX as u64, read_f32, write_f32);
- qc_byte_order!(prop_f64, f64, ::std::i64::MAX as u64, read_f64, write_f64);
-
- qc_byte_order!(prop_uint_1, u64, super::U64_MAX, 1, read_uint, write_uint);
- qc_byte_order!(prop_uint_2, u64, super::U64_MAX, 2, read_uint, write_uint);
- qc_byte_order!(prop_uint_3, u64, super::U64_MAX, 3, read_uint, write_uint);
- qc_byte_order!(prop_uint_4, u64, super::U64_MAX, 4, read_uint, write_uint);
- qc_byte_order!(prop_uint_5, u64, super::U64_MAX, 5, read_uint, write_uint);
- qc_byte_order!(prop_uint_6, u64, super::U64_MAX, 6, read_uint, write_uint);
- qc_byte_order!(prop_uint_7, u64, super::U64_MAX, 7, read_uint, write_uint);
- qc_byte_order!(prop_uint_8, u64, super::U64_MAX, 8, read_uint, write_uint);
-
- qc_byte_order!(prop_int_1, i64, super::I64_MAX, 1, read_int, write_int);
- qc_byte_order!(prop_int_2, i64, super::I64_MAX, 2, read_int, write_int);
- qc_byte_order!(prop_int_3, i64, super::I64_MAX, 3, read_int, write_int);
- qc_byte_order!(prop_int_4, i64, super::I64_MAX, 4, read_int, write_int);
- qc_byte_order!(prop_int_5, i64, super::I64_MAX, 5, read_int, write_int);
- qc_byte_order!(prop_int_6, i64, super::I64_MAX, 6, read_int, write_int);
- qc_byte_order!(prop_int_7, i64, super::I64_MAX, 7, read_int, write_int);
- qc_byte_order!(prop_int_8, i64, super::I64_MAX, 8, read_int, write_int);
-
- macro_rules! qc_bytes_ext {
- ($name:ident, $ty_int:ident, $max:expr,
- $bytes:expr, $read:ident, $write:ident) => (
- mod $name {
- use std::io::Cursor;
- use {
- ReadBytesExt, WriteBytesExt,
- BigEndian, NativeEndian, LittleEndian,
- };
- use super::qc_sized;
-
- #[test]
- fn big_endian() {
- let max = ($max - 1) >> (8 * (8 - $bytes));
- fn prop(n: $ty_int) -> bool {
- let mut wtr = vec![];
- wtr.$write::<BigEndian>(n).unwrap();
- let mut rdr = Vec::new();
- rdr.extend(wtr[8 - $bytes..].iter().map(|&x|x));
- let mut rdr = Cursor::new(rdr);
- n == rdr.$read::<BigEndian>($bytes).unwrap()
- }
- qc_sized(prop as fn($ty_int) -> bool, max);
- }
-
- #[test]
- fn little_endian() {
- let max = ($max - 1) >> (8 * (8 - $bytes));
- fn prop(n: $ty_int) -> bool {
- let mut wtr = vec![];
- wtr.$write::<LittleEndian>(n).unwrap();
- let mut rdr = Cursor::new(wtr);
- n == rdr.$read::<LittleEndian>($bytes).unwrap()
- }
- qc_sized(prop as fn($ty_int) -> bool, max);
- }
-
- #[test]
- fn native_endian() {
- let max = ($max - 1) >> (8 * (8 - $bytes));
- fn prop(n: $ty_int) -> bool {
- let mut wtr = vec![];
- wtr.$write::<NativeEndian>(n).unwrap();
- let mut rdr = Cursor::new(wtr);
- n == rdr.$read::<NativeEndian>($bytes).unwrap()
- }
- qc_sized(prop as fn($ty_int) -> bool, max);
- }
- }
- );
- ($name:ident, $ty_int:ident, $max:expr, $read:ident, $write:ident) => (
- mod $name {
- use std::io::Cursor;
- use {
- ReadBytesExt, WriteBytesExt,
- BigEndian, NativeEndian, LittleEndian,
- };
- use super::qc_sized;
-
- #[test]
- fn big_endian() {
- fn prop(n: $ty_int) -> bool {
- let mut wtr = vec![];
- wtr.$write::<BigEndian>(n).unwrap();
- let mut rdr = Cursor::new(wtr);
- n == rdr.$read::<BigEndian>().unwrap()
- }
- qc_sized(prop as fn($ty_int) -> bool, $max - 1);
- }
-
- #[test]
- fn little_endian() {
- fn prop(n: $ty_int) -> bool {
- let mut wtr = vec![];
- wtr.$write::<LittleEndian>(n).unwrap();
- let mut rdr = Cursor::new(wtr);
- n == rdr.$read::<LittleEndian>().unwrap()
- }
- qc_sized(prop as fn($ty_int) -> bool, $max - 1);
- }
-
- #[test]
- fn native_endian() {
- fn prop(n: $ty_int) -> bool {
- let mut wtr = vec![];
- wtr.$write::<NativeEndian>(n).unwrap();
- let mut rdr = Cursor::new(wtr);
- n == rdr.$read::<NativeEndian>().unwrap()
- }
- qc_sized(prop as fn($ty_int) -> bool, $max - 1);
- }
- }
- );
- }
-
- qc_bytes_ext!(prop_ext_u16, u16, ::std::u16::MAX as u64, read_u16, write_u16);
- qc_bytes_ext!(prop_ext_i16, i16, ::std::i16::MAX as u64, read_i16, write_i16);
- qc_bytes_ext!(prop_ext_u32, u32, ::std::u32::MAX as u64, read_u32, write_u32);
- qc_bytes_ext!(prop_ext_i32, i32, ::std::i32::MAX as u64, read_i32, write_i32);
- qc_bytes_ext!(prop_ext_u64, u64, ::std::u64::MAX as u64, read_u64, write_u64);
- qc_bytes_ext!(prop_ext_i64, i64, ::std::i64::MAX as u64, read_i64, write_i64);
- qc_bytes_ext!(prop_ext_f32, f32, ::std::u64::MAX as u64, read_f32, write_f32);
- qc_bytes_ext!(prop_ext_f64, f64, ::std::i64::MAX as u64, read_f64, write_f64);
-
- qc_bytes_ext!(prop_ext_uint_1, u64, super::U64_MAX, 1, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_2, u64, super::U64_MAX, 2, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_3, u64, super::U64_MAX, 3, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_4, u64, super::U64_MAX, 4, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_5, u64, super::U64_MAX, 5, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_6, u64, super::U64_MAX, 6, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_7, u64, super::U64_MAX, 7, read_uint, write_u64);
- qc_bytes_ext!(prop_ext_uint_8, u64, super::U64_MAX, 8, read_uint, write_u64);
-
- qc_bytes_ext!(prop_ext_int_1, i64, super::I64_MAX, 1, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_2, i64, super::I64_MAX, 2, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_3, i64, super::I64_MAX, 3, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_4, i64, super::I64_MAX, 4, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_5, i64, super::I64_MAX, 5, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_6, i64, super::I64_MAX, 6, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_7, i64, super::I64_MAX, 7, read_int, write_i64);
- qc_bytes_ext!(prop_ext_int_8, i64, super::I64_MAX, 8, read_int, write_i64);
-
- // Test that all of the byte conversion functions panic when given a
- // buffer that is too small.
- //
- // These tests are critical to ensure safety, otherwise we might end up
- // with a buffer overflow.
- macro_rules! too_small {
- ($name:ident, $maximally_small:expr, $zero:expr,
- $read:ident, $write:ident) => (
- mod $name {
- use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
-
- #[test]
- #[should_panic]
- fn read_big_endian() {
- let buf = [0; $maximally_small];
- BigEndian::$read(&buf);
- }
-
- #[test]
- #[should_panic]
- fn read_little_endian() {
- let buf = [0; $maximally_small];
- LittleEndian::$read(&buf);
- }
-
- #[test]
- #[should_panic]
- fn read_native_endian() {
- let buf = [0; $maximally_small];
- NativeEndian::$read(&buf);
- }
-
- #[test]
- #[should_panic]
- fn write_big_endian() {
- let mut buf = [0; $maximally_small];
- BigEndian::$write(&mut buf, $zero);
- }
-
- #[test]
- #[should_panic]
- fn write_little_endian() {
- let mut buf = [0; $maximally_small];
- LittleEndian::$write(&mut buf, $zero);
- }
-
- #[test]
- #[should_panic]
- fn write_native_endian() {
- let mut buf = [0; $maximally_small];
- NativeEndian::$write(&mut buf, $zero);
- }
- }
- );
- ($name:ident, $maximally_small:expr, $read:ident) => (
- mod $name {
- use {BigEndian, ByteOrder, NativeEndian, LittleEndian};
-
- #[test]
- #[should_panic]
- fn read_big_endian() {
- let buf = [0; $maximally_small];
- BigEndian::$read(&buf, $maximally_small + 1);
- }
-
- #[test]
- #[should_panic]
- fn read_little_endian() {
- let buf = [0; $maximally_small];
- LittleEndian::$read(&buf, $maximally_small + 1);
- }
-
- #[test]
- #[should_panic]
- fn read_native_endian() {
- let buf = [0; $maximally_small];
- NativeEndian::$read(&buf, $maximally_small + 1);
- }
- }
- );
- }
-
- too_small!(small_u16, 1, 0, read_u16, write_u16);
- too_small!(small_i16, 1, 0, read_i16, write_i16);
- too_small!(small_u32, 3, 0, read_u32, write_u32);
- too_small!(small_i32, 3, 0, read_i32, write_i32);
- too_small!(small_u64, 7, 0, read_u64, write_u64);
- too_small!(small_i64, 7, 0, read_i64, write_i64);
- too_small!(small_f32, 3, 0.0, read_f32, write_f32);
- too_small!(small_f64, 7, 0.0, read_f64, write_f64);
-
- too_small!(small_uint_1, 1, read_uint);
- too_small!(small_uint_2, 2, read_uint);
- too_small!(small_uint_3, 3, read_uint);
- too_small!(small_uint_4, 4, read_uint);
- too_small!(small_uint_5, 5, read_uint);
- too_small!(small_uint_6, 6, read_uint);
- too_small!(small_uint_7, 7, read_uint);
-
- too_small!(small_int_1, 1, read_int);
- too_small!(small_int_2, 2, read_int);
- too_small!(small_int_3, 3, read_int);
- too_small!(small_int_4, 4, read_int);
- too_small!(small_int_5, 5, read_int);
- too_small!(small_int_6, 6, read_int);
- too_small!(small_int_7, 7, read_int);
-
- #[test]
- fn uint_bigger_buffer() {
- use {ByteOrder, LittleEndian};
- let n = LittleEndian::read_uint(&[1, 2, 3, 4, 5, 6, 7, 8], 5);
- assert_eq!(n, 0x0504030201);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 08:46:07 +0000