bjoernager/rust
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serialize: use Result

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All of Decoder and Encoder's methods now return a Result.

Encodable.encode() and Decodable.decode() return a Result as well.

fixes #12292
This commit is contained in:
Sean McArthur 2014-03-18 10:58:26 -07:00
parent 13dafa09f1
commit f1739b14a1
27 changed files with 6558 additions and 1419 deletions
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18
src/libsyntax/codemap.rs
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@ -110,6 +110,8 @@ impl Eq for Span {
impl TotalEq for Span {}
// FIXME: remove stage0 Encodables/Decodables after snapshot
#[cfg(stage0)]
impl<S:Encoder> Encodable<S> for Span {
/* Note #1972 -- spans are encoded but not decoded */
fn encode(&self, s: &mut S) {
@ -117,12 +119,28 @@ impl<S:Encoder> Encodable<S> for Span {
}
}
#[cfg(stage0)]
impl<D:Decoder> Decodable<D> for Span {
fn decode(_d: &mut D) -> Span {
DUMMY_SP
}
}
#[cfg(not(stage0))]
impl<S:Encoder<E>, E> Encodable<S, E> for Span {
/* Note #1972 -- spans are encoded but not decoded */
fn encode(&self, s: &mut S) -> Result<(), E> {
s.emit_nil()
}
}
#[cfg(not(stage0))]
impl<D:Decoder<E>, E> Decodable<D, E> for Span {
fn decode(_d: &mut D) -> Result<Span, E> {
Ok(DUMMY_SP)
}
}
pub fn spanned<T>(lo: BytePos, hi: BytePos, t: T) -> Spanned<T> {
respan(mk_sp(lo, hi), t)
}