SYS-OSS/FRET-LibAFL
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const LEN for tuples

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This commit is contained in:
Andrea Fioraldi 2021-04-24 10:47:37 +02:00
parent ad5d45b3e2
commit 964ce4f6eb
1 changed files with 6 additions and 0 deletions
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6
libafl/src/bolts/tuples.rs
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@ -7,6 +7,8 @@ use core::any::TypeId;
use xxhash_rust::const_xxh3::xxh3_64; use xxhash_rust::const_xxh3::xxh3_64;
pub trait HasLen { pub trait HasLen {
const LEN: usize;
fn len(&self) -> usize; fn len(&self) -> usize;
fn is_empty(&self) -> bool { fn is_empty(&self) -> bool {
self.len() == 0 self.len() == 0
@ -14,6 +16,8 @@ pub trait HasLen {
} }
impl HasLen for () { impl HasLen for () {
const LEN: usize = 0;
fn len(&self) -> usize { fn len(&self) -> usize {
0 0
} }
@ -23,6 +27,8 @@ impl<Head, Tail> HasLen for (Head, Tail)
where where
Tail: HasLen, Tail: HasLen,
{ {
const LEN: usize = 1 + Tail::LEN;
fn len(&self) -> usize { fn len(&self) -> usize {
1 + self.1.len() 1 + self.1.len()
} }