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Merge pull request #405 from c-o-l-o-r/wasm-ssz

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Make SSZ compatible with `wasm32` targets
This commit is contained in:
Paul Hauner
2019-06-27 13:31:18 +10:00
committed by GitHub
parent 9c6af0397d e93fb94e7a
commit 9a356a00c2
6 changed files with 52 additions and 9 deletions
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5
eth2/utils/ssz/src/decode/impls.rs
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@@ -34,6 +34,11 @@ impl_decodable_for_uint!(u8, 8);
impl_decodable_for_uint!(u16, 16);
impl_decodable_for_uint!(u32, 32);
impl_decodable_for_uint!(u64, 64);
#[cfg(target_pointer_width = "32")]
impl_decodable_for_uint!(usize, 32);
#[cfg(target_pointer_width = "64")]
impl_decodable_for_uint!(usize, 64);
impl Decode for bool {

5
eth2/utils/ssz/src/encode/impls.rs
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@@ -24,6 +24,11 @@ impl_encodable_for_uint!(u8, 8);
impl_encodable_for_uint!(u16, 16);
impl_encodable_for_uint!(u32, 32);
impl_encodable_for_uint!(u64, 64);
#[cfg(target_pointer_width = "32")]
impl_encodable_for_uint!(usize, 32);
#[cfg(target_pointer_width = "64")]
impl_encodable_for_uint!(usize, 64);
/// The SSZ "union" type.

5
eth2/utils/ssz/src/lib.rs
View File

@@ -46,7 +46,10 @@ pub use encode::{Encode, SszEncoder};
/// The number of bytes used to represent an offset.
pub const BYTES_PER_LENGTH_OFFSET: usize = 4;
/// The maximum value that can be represented using `BYTES_PER_LENGTH_OFFSET`.
pub const MAX_LENGTH_VALUE: usize = (1 << (BYTES_PER_LENGTH_OFFSET * 8)) - 1;
#[cfg(target_pointer_width = "32")]
pub const MAX_LENGTH_VALUE: usize = (std::u32::MAX >> 8 * (4 - BYTES_PER_LENGTH_OFFSET)) as usize;
#[cfg(target_pointer_width = "64")]
pub const MAX_LENGTH_VALUE: usize = (std::u64::MAX >> 8 * (8 - BYTES_PER_LENGTH_OFFSET)) as usize;
/// Convenience function to SSZ encode an object supporting ssz::Encode.
///