diff options
Diffstat (limited to 'compiler/rustc_data_structures/src')
| -rw-r--r-- | compiler/rustc_data_structures/src/sip128.rs | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/compiler/rustc_data_structures/src/sip128.rs b/compiler/rustc_data_structures/src/sip128.rs index 53062b9c20d..872b0eb7854 100644 --- a/compiler/rustc_data_structures/src/sip128.rs +++ b/compiler/rustc_data_structures/src/sip128.rs @@ -409,6 +409,20 @@ impl SipHasher128 { } } +macro_rules! dispatch_value { + ($target: expr, $value:expr) => { + let value = $value; + #[allow(unreachable_patterns)] + #[allow(overflowing_literals)] + match value { + 0..=0xFF => $target.short_write(value as u8), + 0x100..=0xFFFF => $target.short_write(value as u16), + 0x10000..=0xFFFFFFFF => $target.short_write(value as u32), + _ => $target.short_write(value as u64), + } + }; +} + impl Hasher for SipHasher128 { #[inline] fn write_u8(&mut self, i: u8) { @@ -422,7 +436,7 @@ impl Hasher for SipHasher128 { #[inline] fn write_u32(&mut self, i: u32) { - self.short_write(i); + dispatch_value!(self, i); } #[inline] @@ -452,7 +466,7 @@ impl Hasher for SipHasher128 { #[inline] fn write_i64(&mut self, i: i64) { - self.short_write(i as u64); + dispatch_value!(self, i as u64); } #[inline] |