3 files changed, 93 insertions, 5 deletions

diff --git a/vendor/nom/src/bits/complete.rs b/vendor/nom/src/bits/complete.rs
index b46bc7a27..bf36dcc2a 100644
--- a/vendor/nom/src/bits/complete.rs
+++ b/vendor/nom/src/bits/complete.rs
@@ -105,6 +105,29 @@ where
   }
 }
 
+/// Parses one specific bit as a bool.
+///
+/// # Example
+/// ```rust
+/// # use nom::bits::complete::bool;
+/// # use nom::IResult;
+/// # use nom::error::{Error, ErrorKind};
+///
+/// fn parse(input: (&[u8], usize)) -> IResult<(&[u8], usize), bool> {
+///     bool(input)
+/// }
+///
+/// assert_eq!(parse(([0b10000000].as_ref(), 0)), Ok((([0b10000000].as_ref(), 1), true)));
+/// assert_eq!(parse(([0b10000000].as_ref(), 1)), Ok((([0b10000000].as_ref(), 2), false)));
+/// ```
+pub fn bool<I, E: ParseError<(I, usize)>>(input: (I, usize)) -> IResult<(I, usize), bool, E>
+where
+  I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,
+{
+  let (res, bit): (_, u32) = take(1usize)(input)?;
+  Ok((res, bit != 0))
+}
+
 #[cfg(test)]
 mod test {
   use super::*;
@@ -147,4 +170,28 @@ mod test {
       Ok((([0b11111111].as_ref(), 4), 0b1000110100111111111111))
     );
   }
+
+  #[test]
+  fn test_bool_0() {
+    let input = [0b10000000].as_ref();
+
+    let result: crate::IResult<(&[u8], usize), bool> = bool((input, 0));
+
+    assert_eq!(result, Ok(((input, 1), true)));
+  }
+
+  #[test]
+  fn test_bool_eof() {
+    let input = [0b10000000].as_ref();
+
+    let result: crate::IResult<(&[u8], usize), bool> = bool((input, 8));
+
+    assert_eq!(
+      result,
+      Err(crate::Err::Error(crate::error::Error {
+        input: (input, 8),
+        code: ErrorKind::Eof
+      }))
+    );
+  }
 }
diff --git a/vendor/nom/src/bits/mod.rs b/vendor/nom/src/bits/mod.rs
index 235b7973e..0d3f73db2 100644
--- a/vendor/nom/src/bits/mod.rs
+++ b/vendor/nom/src/bits/mod.rs
@@ -5,7 +5,7 @@ pub mod complete;
 pub mod streaming;
 
 use crate::error::{ErrorKind, ParseError};
-use crate::internal::{Err, IResult, Needed};
+use crate::internal::{Err, IResult, Needed, Parser};
 use crate::lib::std::ops::RangeFrom;
 use crate::traits::{ErrorConvert, Slice};
 
@@ -42,9 +42,9 @@ where
   E1: ParseError<(I, usize)> + ErrorConvert<E2>,
   E2: ParseError<I>,
   I: Slice<RangeFrom<usize>>,
-  P: FnMut((I, usize)) -> IResult<(I, usize), O, E1>,
+  P: Parser<(I, usize), O, E1>,
 {
-  move |input: I| match parser((input, 0)) {
+  move |input: I| match parser.parse((input, 0)) {
     Ok(((rest, offset), result)) => {
       // If the next byte has been partially read, it will be sliced away as well.
       // The parser functions might already slice away all fully read bytes.
@@ -88,7 +88,7 @@ where
   E1: ParseError<I> + ErrorConvert<E2>,
   E2: ParseError<(I, usize)>,
   I: Slice<RangeFrom<usize>> + Clone,
-  P: FnMut(I) -> IResult<I, O, E1>,
+  P: Parser<I, O, E1>,
 {
   move |(input, offset): (I, usize)| {
     let inner = if offset % 8 != 0 {
@@ -97,7 +97,7 @@ where
       input.slice((offset / 8)..)
     };
     let i = (input, offset);
-    match parser(inner) {
+    match parser.parse(inner) {
       Ok((rest, res)) => Ok(((rest, 0), res)),
       Err(Err::Incomplete(Needed::Unknown)) => Err(Err::Incomplete(Needed::Unknown)),
       Err(Err::Incomplete(Needed::Size(sz))) => Err(match sz.get().checked_mul(8) {
diff --git a/vendor/nom/src/bits/streaming.rs b/vendor/nom/src/bits/streaming.rs
index e8adc1c0d..a7c8d0a67 100644
--- a/vendor/nom/src/bits/streaming.rs
+++ b/vendor/nom/src/bits/streaming.rs
@@ -79,6 +79,29 @@ where
   }
 }
 
+/// Parses one specific bit as a bool.
+///
+/// # Example
+/// ```rust
+/// # use nom::bits::complete::bool;
+/// # use nom::IResult;
+/// # use nom::error::{Error, ErrorKind};
+///
+/// fn parse(input: (&[u8], usize)) -> IResult<(&[u8], usize), bool> {
+///     bool(input)
+/// }
+///
+/// assert_eq!(parse(([0b10000000].as_ref(), 0)), Ok((([0b10000000].as_ref(), 1), true)));
+/// assert_eq!(parse(([0b10000000].as_ref(), 1)), Ok((([0b10000000].as_ref(), 2), false)));
+/// ```
+pub fn bool<I, E: ParseError<(I, usize)>>(input: (I, usize)) -> IResult<(I, usize), bool, E>
+where
+  I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,
+{
+  let (res, bit): (_, u32) = take(1usize)(input)?;
+  Ok((res, bit != 0))
+}
+
 #[cfg(test)]
 mod test {
   use super::*;
@@ -126,4 +149,22 @@ mod test {
       }))
     );
   }
+
+  #[test]
+  fn test_bool_0() {
+    let input = [0b10000000].as_ref();
+
+    let result: crate::IResult<(&[u8], usize), bool> = bool((input, 0));
+
+    assert_eq!(result, Ok(((input, 1), true)));
+  }
+
+  #[test]
+  fn test_bool_eof() {
+    let input = [0b10000000].as_ref();
+
+    let result: crate::IResult<(&[u8], usize), bool> = bool((input, 8));
+
+    assert_eq!(result, Err(crate::Err::Incomplete(Needed::new(1))));
+  }
 }