argdata 0.1.2

Argdata: A binary serialization format.
Documentation 
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use fd;
use std::ops::Deref;
use values;
use Argdata;

/// A reference to an argdata value.
/// Either a substring of an encoded argdata value, or just a `&Argdata`.
pub struct ArgdataRef<'a, 'd: 'a> {
	inner: Inner<'a, 'd>,
}

impl<'a, 'd: 'a> ArgdataRef<'a, 'd> {
	/// Create an ArgdataRef that refers to a substring of an encoded argdata value.
	pub fn encoded(bytes: &'d [u8], convert_fd: &'a (fd::ConvertFd + 'a)) -> ArgdataRef<'a, 'd> {
		ArgdataRef {
			inner: Inner::Encoded(::encoded_with_fds(bytes, convert_fd)),
		}
	}

	/// Create an ArgdataRef that simply refers to something that implements Argdata.
	pub fn reference(value: &'a (Argdata<'d> + 'a)) -> ArgdataRef<'a, 'd> {
		ArgdataRef {
			inner: Inner::Reference(value),
		}
	}
}

pub enum Inner<'a, 'd: 'a> {
	Encoded(values::EncodedArgdata<'d, &'a fd::ConvertFd>),
	Reference(&'a Argdata<'d>),
}

impl<'a, 'd: 'a> Deref for ArgdataRef<'a, 'd> {
	type Target = Argdata<'d> + 'a;
	fn deref(&self) -> &Self::Target {
		match &self.inner {
			&Inner::Encoded(ref argdata) => argdata,
			&Inner::Reference(argdata) => argdata,
		}
	}
}