Remove unused vec.
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bb33df436c
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50a858b735
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@ -33,8 +33,6 @@ fn to_hex<'a>(v: &'a mut [u8], bytes: &[u8], skip_leading_zero: bool) -> &'a str
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pub fn serialize<S>(slice: &mut [u8], bytes: &[u8], serializer: S) -> Result<S::Ok, S::Error> where
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S: Serializer,
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{
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let mut v = Vec::with_capacity(2 + bytes.len() * 2);
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v.resize(2 + bytes.len() * 2, 0);
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serializer.serialize_str(to_hex(slice, bytes, false))
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}
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@ -66,7 +64,7 @@ impl<'a> fmt::Display for ExpectedLen<'a> {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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match *self {
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ExpectedLen::Exact(ref v) => write!(fmt, "length of {}", v.len() * 2),
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ExpectedLen::Between(min, ref v) => write!(fmt, "length between ({}; {}]", min * 2, v.len() * 2),
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ExpectedLen::Between(min, ref v) => write!(fmt, "length between ({}; {}]", min * 2, v.len() * 2),
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}
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}
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}
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@ -103,38 +101,38 @@ pub fn deserialize_check_len<'a, 'de, D>(deserializer: D, len: ExpectedLen<'a>)
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let bytes = match self.len {
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ExpectedLen::Exact(slice) => slice,
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ExpectedLen::Between(_, slice) => slice,
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};
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ExpectedLen::Between(_, slice) => slice,
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};
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let mut modulus = v.len() % 2;
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let mut buf = 0;
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let mut pos = 0;
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for (idx, byte) in v.bytes().enumerate().skip(2) {
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buf <<= 4;
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let mut modulus = v.len() % 2;
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let mut buf = 0;
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let mut pos = 0;
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for (idx, byte) in v.bytes().enumerate().skip(2) {
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buf <<= 4;
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match byte {
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b'A'...b'F' => buf |= byte - b'A' + 10,
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b'a'...b'f' => buf |= byte - b'a' + 10,
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b'0'...b'9' => buf |= byte - b'0',
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b' '|b'\r'|b'\n'|b'\t' => {
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buf >>= 4;
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continue
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}
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_ => {
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let ch = v[idx..].chars().next().unwrap();
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return Err(E::custom(&format!("invalid hex character: {}, at {}", ch, idx)))
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}
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match byte {
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b'A'...b'F' => buf |= byte - b'A' + 10,
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b'a'...b'f' => buf |= byte - b'a' + 10,
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b'0'...b'9' => buf |= byte - b'0',
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b' '|b'\r'|b'\n'|b'\t' => {
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buf >>= 4;
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continue
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}
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modulus += 1;
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if modulus == 2 {
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modulus = 0;
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bytes[pos] = buf;
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pos += 1;
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_ => {
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let ch = v[idx..].chars().next().unwrap();
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return Err(E::custom(&format!("invalid hex character: {}, at {}", ch, idx)))
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}
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}
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Ok(pos)
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modulus += 1;
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if modulus == 2 {
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modulus = 0;
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bytes[pos] = buf;
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pos += 1;
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}
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}
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Ok(pos)
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}
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fn visit_string<E: de::Error>(self, v: String) -> Result<Self::Value, E> {
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