Trait vapcore_builtin::Implementation

pub trait Implementation: Send + Sync {
    fn execute(
        &self, 
        input: &[u8], 
        output: &mut BytesRef<'_>
    ) -> Result<(), &'static str>;
}

Native implementation of a built-in contract.

Required methods

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

execute this built-in on the given input, writing to the given output.

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Implementors

impl Implementation for Blake2F

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

Format of input: [4 bytes for rounds][64 bytes for h][128 bytes for m][8 bytes for t_0][8 bytes for t_1][1 byte for f]

impl Implementation for Bn128Add

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

impl Implementation for Bn128Mul

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

impl Implementation for Bn128Pairing

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

Can fail if: - input length is not a multiple of 192 - any of odd points does not belong to bn128 curve - any of even points does not belong to the twisted bn128 curve over the field F_p^2 = F_p[i] / (i^2 + 1)

impl Implementation for EcRecover

fn execute(
    &self,
    i: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

impl Implementation for Identity

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

impl Implementation for Modexp

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

impl Implementation for Ripemd160

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

impl Implementation for Sha256

fn execute(
    &self,
    input: &[u8],
    output: &mut BytesRef<'_>
) -> Result<(), &'static str>

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