chore: vendor dependencies

1 files changed, 80 insertions, 0 deletions

diff --git a/vendor/rustls/src/bs_debug.rs b/vendor/rustls/src/bs_debug.rs
new file mode 100644
index 00000000..eac4149f
--- /dev/null
+++ b/vendor/rustls/src/bs_debug.rs
@@ -0,0 +1,80 @@
+use core::fmt;
+
+/// Alternative implementation of `fmt::Debug` for byte slice.
+///
+/// Standard `Debug` implementation for `[u8]` is comma separated
+/// list of numbers. Since large amount of byte strings are in fact
+/// ASCII strings or contain a lot of ASCII strings (e. g. HTTP),
+/// it is convenient to print strings as ASCII when possible.
+///
+/// This struct wraps `&[u8]` just to override `fmt::Debug`.
+///
+/// `BsDebug` is not a part of public API of bytes crate.
+pub(crate) struct BsDebug<'a>(pub(crate) &'a [u8]);
+
+impl fmt::Debug for BsDebug<'_> {
+    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
+        write!(fmt, "b\"")?;
+        for &c in self.0 {
+            // https://doc.rust-lang.org/reference.html#byte-escapes
+            if c == b'\n' {
+                write!(fmt, "\\n")?;
+            } else if c == b'\r' {
+                write!(fmt, "\\r")?;
+            } else if c == b'\t' {
+                write!(fmt, "\\t")?;
+            } else if c == b'\\' || c == b'"' {
+                write!(fmt, "\\{}", c as char)?;
+            } else if c == b'\0' {
+                write!(fmt, "\\0")?;
+                // ASCII printable
+            } else if (0x20..0x7f).contains(&c) {
+                write!(fmt, "{}", c as char)?;
+            } else {
+                write!(fmt, "\\x{c:02x}")?;
+            }
+        }
+        write!(fmt, "\"")?;
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::format;
+    use std::prelude::v1::*;
+
+    use super::BsDebug;
+
+    #[test]
+    fn debug() {
+        let vec: Vec<_> = (0..0x100).map(|b| b as u8).collect();
+
+        let expected = "b\"\
+            \\0\\x01\\x02\\x03\\x04\\x05\\x06\\x07\
+            \\x08\\t\\n\\x0b\\x0c\\r\\x0e\\x0f\
+            \\x10\\x11\\x12\\x13\\x14\\x15\\x16\\x17\
+            \\x18\\x19\\x1a\\x1b\\x1c\\x1d\\x1e\\x1f\
+            \x20!\\\"#$%&'()*+,-./0123456789:;<=>?\
+            @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\]^_\
+            `abcdefghijklmnopqrstuvwxyz{|}~\\x7f\
+            \\x80\\x81\\x82\\x83\\x84\\x85\\x86\\x87\
+            \\x88\\x89\\x8a\\x8b\\x8c\\x8d\\x8e\\x8f\
+            \\x90\\x91\\x92\\x93\\x94\\x95\\x96\\x97\
+            \\x98\\x99\\x9a\\x9b\\x9c\\x9d\\x9e\\x9f\
+            \\xa0\\xa1\\xa2\\xa3\\xa4\\xa5\\xa6\\xa7\
+            \\xa8\\xa9\\xaa\\xab\\xac\\xad\\xae\\xaf\
+            \\xb0\\xb1\\xb2\\xb3\\xb4\\xb5\\xb6\\xb7\
+            \\xb8\\xb9\\xba\\xbb\\xbc\\xbd\\xbe\\xbf\
+            \\xc0\\xc1\\xc2\\xc3\\xc4\\xc5\\xc6\\xc7\
+            \\xc8\\xc9\\xca\\xcb\\xcc\\xcd\\xce\\xcf\
+            \\xd0\\xd1\\xd2\\xd3\\xd4\\xd5\\xd6\\xd7\
+            \\xd8\\xd9\\xda\\xdb\\xdc\\xdd\\xde\\xdf\
+            \\xe0\\xe1\\xe2\\xe3\\xe4\\xe5\\xe6\\xe7\
+            \\xe8\\xe9\\xea\\xeb\\xec\\xed\\xee\\xef\
+            \\xf0\\xf1\\xf2\\xf3\\xf4\\xf5\\xf6\\xf7\
+            \\xf8\\xf9\\xfa\\xfb\\xfc\\xfd\\xfe\\xff\"";
+
+        assert_eq!(expected, format!("{:?}", BsDebug(&vec)));
+    }
+}