1 files changed, 0 insertions, 425 deletions
diff --git a/vendor/object/src/read/util.rs b/vendor/object/src/read/util.rs
deleted file mode 100644
index 7d85b27..0000000
--- a/vendor/object/src/read/util.rs
+++ /dev/null
@@ -1,425 +0,0 @@
-use alloc::string::String;
-use core::convert::TryInto;
-use core::fmt;
-use core::marker::PhantomData;
-
-use crate::pod::{from_bytes, slice_from_bytes, Pod};
-use crate::ReadRef;
-
-/// A newtype for byte slices.
-///
-/// It has these important features:
-/// - no methods that can panic, such as `Index`
-/// - convenience methods for `Pod` types
-/// - a useful `Debug` implementation
-#[derive(Default, Clone, Copy, PartialEq, Eq)]
-pub struct Bytes<'data>(pub &'data [u8]);
-
-impl<'data> fmt::Debug for Bytes<'data> {
-    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
-        debug_list_bytes(self.0, fmt)
-    }
-}
-
-impl<'data> Bytes<'data> {
-    /// Return the length of the byte slice.
-    #[inline]
-    pub fn len(&self) -> usize {
-        self.0.len()
-    }
-
-    /// Return true if the byte slice is empty.
-    #[inline]
-    pub fn is_empty(&self) -> bool {
-        self.0.is_empty()
-    }
-
-    /// Skip over the given number of bytes at the start of the byte slice.
-    ///
-    /// Modifies the byte slice to start after the bytes.
-    ///
-    /// Returns an error if there are too few bytes.
-    #[inline]
-    pub fn skip(&mut self, offset: usize) -> Result<(), ()> {
-        match self.0.get(offset..) {
-            Some(tail) => {
-                self.0 = tail;
-                Ok(())
-            }
-            None => {
-                self.0 = &[];
-                Err(())
-            }
-        }
-    }
-
-    /// Return a reference to the given number of bytes at the start of the byte slice.
-    ///
-    /// Modifies the byte slice to start after the bytes.
-    ///
-    /// Returns an error if there are too few bytes.
-    #[inline]
-    pub fn read_bytes(&mut self, count: usize) -> Result<Bytes<'data>, ()> {
-        match (self.0.get(..count), self.0.get(count..)) {
-            (Some(head), Some(tail)) => {
-                self.0 = tail;
-                Ok(Bytes(head))
-            }
-            _ => {
-                self.0 = &[];
-                Err(())
-            }
-        }
-    }
-
-    /// Return a reference to the given number of bytes at the given offset of the byte slice.
-    ///
-    /// Returns an error if the offset is invalid or there are too few bytes.
-    #[inline]
-    pub fn read_bytes_at(mut self, offset: usize, count: usize) -> Result<Bytes<'data>, ()> {
-        self.skip(offset)?;
-        self.read_bytes(count)
-    }
-
-    /// Return a reference to a `Pod` struct at the start of the byte slice.
-    ///
-    /// Modifies the byte slice to start after the bytes.
-    ///
-    /// Returns an error if there are too few bytes or the slice is incorrectly aligned.
-    #[inline]
-    pub fn read<T: Pod>(&mut self) -> Result<&'data T, ()> {
-        match from_bytes(self.0) {
-            Ok((value, tail)) => {
-                self.0 = tail;
-                Ok(value)
-            }
-            Err(()) => {
-                self.0 = &[];
-                Err(())
-            }
-        }
-    }
-
-    /// Return a reference to a `Pod` struct at the given offset of the byte slice.
-    ///
-    /// Returns an error if there are too few bytes or the offset is incorrectly aligned.
-    #[inline]
-    pub fn read_at<T: Pod>(mut self, offset: usize) -> Result<&'data T, ()> {
-        self.skip(offset)?;
-        self.read()
-    }
-
-    /// Return a reference to a slice of `Pod` structs at the start of the byte slice.
-    ///
-    /// Modifies the byte slice to start after the bytes.
-    ///
-    /// Returns an error if there are too few bytes or the offset is incorrectly aligned.
-    #[inline]
-    pub fn read_slice<T: Pod>(&mut self, count: usize) -> Result<&'data [T], ()> {
-        match slice_from_bytes(self.0, count) {
-            Ok((value, tail)) => {
-                self.0 = tail;
-                Ok(value)
-            }
-            Err(()) => {
-                self.0 = &[];
-                Err(())
-            }
-        }
-    }
-
-    /// Return a reference to a slice of `Pod` structs at the given offset of the byte slice.
-    ///
-    /// Returns an error if there are too few bytes or the offset is incorrectly aligned.
-    #[inline]
-    pub fn read_slice_at<T: Pod>(mut self, offset: usize, count: usize) -> Result<&'data [T], ()> {
-        self.skip(offset)?;
-        self.read_slice(count)
-    }
-
-    /// Read a null terminated string.
-    ///
-    /// Does not assume any encoding.
-    /// Reads past the null byte, but doesn't return it.
-    #[inline]
-    pub fn read_string(&mut self) -> Result<&'data [u8], ()> {
-        match memchr::memchr(b'\0', self.0) {
-            Some(null) => {
-                // These will never fail.
-                let bytes = self.read_bytes(null)?;
-                self.skip(1)?;
-                Ok(bytes.0)
-            }
-            None => {
-                self.0 = &[];
-                Err(())
-            }
-        }
-    }
-
-    /// Read a null terminated string at an offset.
-    ///
-    /// Does not assume any encoding. Does not return the null byte.
-    #[inline]
-    pub fn read_string_at(mut self, offset: usize) -> Result<&'data [u8], ()> {
-        self.skip(offset)?;
-        self.read_string()
-    }
-
-    /// Read an unsigned LEB128 number.
-    pub fn read_uleb128(&mut self) -> Result<u64, ()> {
-        let mut result = 0;
-        let mut shift = 0;
-
-        loop {
-            let byte = *self.read::<u8>()?;
-            if shift == 63 && byte != 0x00 && byte != 0x01 {
-                return Err(());
-            }
-            result |= u64::from(byte & 0x7f) << shift;
-            shift += 7;
-
-            if byte & 0x80 == 0 {
-                return Ok(result);
-            }
-        }
-    }
-
-    /// Read a signed LEB128 number.
-    pub fn read_sleb128(&mut self) -> Result<i64, ()> {
-        let mut result = 0;
-        let mut shift = 0;
-
-        loop {
-            let byte = *self.read::<u8>()?;
-            if shift == 63 && byte != 0x00 && byte != 0x7f {
-                return Err(());
-            }
-            result |= i64::from(byte & 0x7f) << shift;
-            shift += 7;
-
-            if byte & 0x80 == 0 {
-                if shift < 64 && (byte & 0x40) != 0 {
-                    // Sign extend the result.
-                    result |= !0 << shift;
-                }
-                return Ok(result);
-            }
-        }
-    }
-}
-
-// Only for Debug impl of `Bytes`.
-fn debug_list_bytes(bytes: &[u8], fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
-    let mut list = fmt.debug_list();
-    list.entries(bytes.iter().take(8).copied().map(DebugByte));
-    if bytes.len() > 8 {
-        list.entry(&DebugLen(bytes.len()));
-    }
-    list.finish()
-}
-
-struct DebugByte(u8);
-
-impl fmt::Debug for DebugByte {
-    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(fmt, "0x{:02x}", self.0)
-    }
-}
-
-struct DebugLen(usize);
-
-impl fmt::Debug for DebugLen {
-    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(fmt, "...; {}", self.0)
-    }
-}
-
-/// A newtype for byte strings.
-///
-/// For byte slices that are strings of an unknown encoding.
-///
-/// Provides a `Debug` implementation that interprets the bytes as UTF-8.
-#[derive(Default, Clone, Copy, PartialEq, Eq)]
-pub(crate) struct ByteString<'data>(pub &'data [u8]);
-
-impl<'data> fmt::Debug for ByteString<'data> {
-    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(fmt, "\"{}\"", String::from_utf8_lossy(self.0))
-    }
-}
-
-#[allow(dead_code)]
-#[inline]
-pub(crate) fn align(offset: usize, size: usize) -> usize {
-    (offset + (size - 1)) & !(size - 1)
-}
-
-#[allow(dead_code)]
-pub(crate) fn data_range(
-    data: &[u8],
-    data_address: u64,
-    range_address: u64,
-    size: u64,
-) -> Option<&[u8]> {
-    let offset = range_address.checked_sub(data_address)?;
-    data.get(offset.try_into().ok()?..)?
-        .get(..size.try_into().ok()?)
-}
-
-/// A table of zero-terminated strings.
-///
-/// This is used by most file formats for strings such as section names and symbol names.
-#[derive(Debug, Clone, Copy)]
-pub struct StringTable<'data, R = &'data [u8]>
-where
-    R: ReadRef<'data>,
-{
-    data: Option<R>,
-    start: u64,
-    end: u64,
-    marker: PhantomData<&'data ()>,
-}
-
-impl<'data, R: ReadRef<'data>> StringTable<'data, R> {
-    /// Interpret the given data as a string table.
-    pub fn new(data: R, start: u64, end: u64) -> Self {
-        StringTable {
-            data: Some(data),
-            start,
-            end,
-            marker: PhantomData,
-        }
-    }
-
-    /// Return the string at the given offset.
-    pub fn get(&self, offset: u32) -> Result<&'data [u8], ()> {
-        match self.data {
-            Some(data) => {
-                let r_start = self.start.checked_add(offset.into()).ok_or(())?;
-                data.read_bytes_at_until(r_start..self.end, 0)
-            }
-            None => Err(()),
-        }
-    }
-}
-
-impl<'data, R: ReadRef<'data>> Default for StringTable<'data, R> {
-    fn default() -> Self {
-        StringTable {
-            data: None,
-            start: 0,
-            end: 0,
-            marker: PhantomData,
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::pod::bytes_of;
-
-    #[test]
-    fn bytes() {
-        let x = u32::to_be(0x0123_4567);
-        let data = Bytes(bytes_of(&x));
-
-        let mut bytes = data;
-        assert_eq!(bytes.skip(0), Ok(()));
-        assert_eq!(bytes, data);
-
-        let mut bytes = data;
-        assert_eq!(bytes.skip(4), Ok(()));
-        assert_eq!(bytes, Bytes(&[]));
-
-        let mut bytes = data;
-        assert_eq!(bytes.skip(5), Err(()));
-        assert_eq!(bytes, Bytes(&[]));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_bytes(0), Ok(Bytes(&[])));
-        assert_eq!(bytes, data);
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_bytes(4), Ok(data));
-        assert_eq!(bytes, Bytes(&[]));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_bytes(5), Err(()));
-        assert_eq!(bytes, Bytes(&[]));
-
-        assert_eq!(data.read_bytes_at(0, 0), Ok(Bytes(&[])));
-        assert_eq!(data.read_bytes_at(4, 0), Ok(Bytes(&[])));
-        assert_eq!(data.read_bytes_at(0, 4), Ok(data));
-        assert_eq!(data.read_bytes_at(1, 4), Err(()));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read::<u16>(), Ok(&u16::to_be(0x0123)));
-        assert_eq!(bytes, Bytes(&[0x45, 0x67]));
-        assert_eq!(data.read_at::<u16>(2), Ok(&u16::to_be(0x4567)));
-        assert_eq!(data.read_at::<u16>(3), Err(()));
-        assert_eq!(data.read_at::<u16>(4), Err(()));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read::<u32>(), Ok(&x));
-        assert_eq!(bytes, Bytes(&[]));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read::<u64>(), Err(()));
-        assert_eq!(bytes, Bytes(&[]));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_slice::<u8>(0), Ok(&[][..]));
-        assert_eq!(bytes, data);
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_slice::<u8>(4), Ok(data.0));
-        assert_eq!(bytes, Bytes(&[]));
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_slice::<u8>(5), Err(()));
-        assert_eq!(bytes, Bytes(&[]));
-
-        assert_eq!(data.read_slice_at::<u8>(0, 0), Ok(&[][..]));
-        assert_eq!(data.read_slice_at::<u8>(4, 0), Ok(&[][..]));
-        assert_eq!(data.read_slice_at::<u8>(0, 4), Ok(data.0));
-        assert_eq!(data.read_slice_at::<u8>(1, 4), Err(()));
-
-        let data = Bytes(&[0x01, 0x02, 0x00, 0x04]);
-
-        let mut bytes = data;
-        assert_eq!(bytes.read_string(), Ok(&data.0[..2]));
-        assert_eq!(bytes.0, &data.0[3..]);
-
-        let mut bytes = data;
-        bytes.skip(3).unwrap();
-        assert_eq!(bytes.read_string(), Err(()));
-        assert_eq!(bytes.0, &[]);
-
-        assert_eq!(data.read_string_at(0), Ok(&data.0[..2]));
-        assert_eq!(data.read_string_at(1), Ok(&data.0[1..2]));
-        assert_eq!(data.read_string_at(2), Ok(&[][..]));
-        assert_eq!(data.read_string_at(3), Err(()));
-    }
-
-    #[test]
-    fn bytes_debug() {
-        assert_eq!(format!("{:?}", Bytes(&[])), "[]");
-        assert_eq!(format!("{:?}", Bytes(&[0x01])), "[0x01]");
-        assert_eq!(
-            format!(
-                "{:?}",
-                Bytes(&[0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08])
-            ),
-            "[0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08]"
-        );
-        assert_eq!(
-            format!(
-                "{:?}",
-                Bytes(&[0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09])
-            ),
-            "[0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, ...; 9]"
-        );
-    }
-}