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// Copyright 2018 Brian Smith. // // Permission to use, copy, modify, and/or distribute this software for any // purpose with or without fee is hereby granted, provided that the above // copyright notice and this permission notice appear in all copies. // // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY // SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. //! Serialization and deserialization. #[doc(hidden)] pub mod der; #[cfg(feature = "use_heap")] mod writer; #[cfg(feature = "use_heap")] pub(crate) mod der_writer; /// A serialized positive integer. #[derive(Copy, Clone)] pub struct Positive<'a>(untrusted::Input<'a>); impl<'a> Positive<'a> { /// Returns the value, ordered from significant byte to least significant /// byte, without any leading zeros. The result is guaranteed to be /// non-empty. pub fn big_endian_without_leading_zero(&self) -> untrusted::Input<'a> { self.0 } /// Returns the first byte. /// /// Will not panic because the value is guaranteed to have at least one /// byte. pub fn first_byte(&self) -> u8 { // This won't panic because self.0.as_slice_less_safe()[0] } }