diff options
| -rw-r--r-- | src/librustc/ty/util.rs | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/src/librustc/ty/util.rs b/src/librustc/ty/util.rs index 8f9642b6b6e..bb36fa1487e 100644 --- a/src/librustc/ty/util.rs +++ b/src/librustc/ty/util.rs @@ -392,25 +392,25 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> { } } -// When hashing a type this ends up affecting properties like symbol names. We -// want these symbol names to be calculated independent of other factors like -// what architecture you're compiling *from*. -// -// The hashing just uses the standard `Hash` trait, but the implementations of -// `Hash` for the `usize` and `isize` types are *not* architecture independent -// (e.g. they has 4 or 8 bytes). As a result we want to avoid `usize` and -// `isize` completely when hashing. To ensure that these don't leak in we use a -// custom hasher implementation here which inflates the size of these to a `u64` -// and `i64`. -// -// The same goes for endianess: We always convert multi-byte integers to little -// endian before hashing. -struct ArchIndependentHasher<H> { +/// When hashing a type this ends up affecting properties like symbol names. We +/// want these symbol names to be calculated independent of other factors like +/// what architecture you're compiling *from*. +/// +/// The hashing just uses the standard `Hash` trait, but the implementations of +/// `Hash` for the `usize` and `isize` types are *not* architecture independent +/// (e.g. they has 4 or 8 bytes). As a result we want to avoid `usize` and +/// `isize` completely when hashing. To ensure that these don't leak in we use a +/// custom hasher implementation here which inflates the size of these to a `u64` +/// and `i64`. +/// +/// The same goes for endianess: We always convert multi-byte integers to little +/// endian before hashing. +pub struct ArchIndependentHasher<H> { inner: H, } impl<H> ArchIndependentHasher<H> { - fn new(inner: H) -> ArchIndependentHasher<H> { + pub fn new(inner: H) -> ArchIndependentHasher<H> { ArchIndependentHasher { inner: inner } } } |