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annotate libstd and start enforcing mutability

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This commit is contained in:
Niko Matsakis 2012-03-14 14:03:56 -04:00
parent 273c5e5f11
commit 6b35875dca
19 changed files with 145 additions and 138 deletions
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23
src/libstd/ebml.rs
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@ -77,7 +77,7 @@ fn doc_at(data: @[u8], start: uint) -> tagged_doc {
}
fn maybe_get_doc(d: doc, tg: uint) -> option<doc> {
let pos = d.start;
let mut pos = d.start;
while pos < d.end {
let elt_tag = vuint_at(*d.data, pos);
let elt_size = vuint_at(*d.data, elt_tag.next);
@ -100,7 +100,7 @@ fn get_doc(d: doc, tg: uint) -> doc {
}
fn docs(d: doc, it: fn(uint, doc)) {
let pos = d.start;
let mut pos = d.start;
while pos < d.end {
let elt_tag = vuint_at(*d.data, pos);
let elt_size = vuint_at(*d.data, elt_tag.next);
@ -110,7 +110,7 @@ fn docs(d: doc, it: fn(uint, doc)) {
}
fn tagged_docs(d: doc, tg: uint, it: fn(doc)) {
let pos = d.start;
let mut pos = d.start;
while pos < d.end {
let elt_tag = vuint_at(*d.data, pos);
let elt_size = vuint_at(*d.data, elt_tag.next);
@ -154,20 +154,19 @@ fn doc_as_i64(d: doc) -> i64 { doc_as_u64(d) as i64 }
type writer = {writer: io::writer, mutable size_positions: [uint]};
fn write_sized_vuint(w: io::writer, n: uint, size: uint) {
let buf: [u8];
alt size {
1u { buf = [0x80u8 | (n as u8)]; }
2u { buf = [0x40u8 | ((n >> 8_u) as u8), n as u8]; }
let buf: [u8] = alt size {
1u { [0x80u8 | (n as u8)] }
2u { [0x40u8 | ((n >> 8_u) as u8), n as u8] }
3u {
buf = [0x20u8 | ((n >> 16_u) as u8), (n >> 8_u) as u8,
n as u8];
[0x20u8 | ((n >> 16_u) as u8), (n >> 8_u) as u8,
n as u8]
}
4u {
buf = [0x10u8 | ((n >> 24_u) as u8), (n >> 16_u) as u8,
(n >> 8_u) as u8, n as u8];
[0x10u8 | ((n >> 24_u) as u8), (n >> 16_u) as u8,
(n >> 8_u) as u8, n as u8]
}
_ { fail #fmt("vint to write too big: %?", n); }
}
};
w.write(buf);
}