Struct newel::EvalCtx

pub struct EvalCtx<'eval> {
    pub tmp1: &'eval mut [u8],
    pub tmp2: &'eval mut [u8],
    pub out: &'eval mut [u8],
}

Every top-level evaluation step in newel happens against an EvalCtx that holds 3 mutable buffers of some multiple of CHUNKSZ bytes. These buffers (and the EvalCtx itself) get used up during the operation. The first two buffers are for holding possible conversions of 1 or 2 inputs to the operation; the third buffer stores the output.

Fields

tmp1: &'eval mut [u8]

tmp2: &'eval mut [u8]

out: &'eval mut [u8]

Methods

impl<'eval> EvalCtx<'eval>

pub fn conv<'slice: 'eval>(
    self,
    s: &Operand<'slice>,
    ty: ScalarTy
) -> Result<Operand<'eval>, EvalError>

Convert an Operand to a given ScalarTy.

pub fn val_binop<'slice>(
    self,
    op: ValBinOpCode,
    lhs: &Operand<'slice>,
    rhs: &Operand<'slice>
) -> Result<Operand<'eval>, EvalError> where
    'slice: 'eval, 

Perform a given ValBinOpCode on a pair of Operands.

pub fn bool_binop<'slice>(
    self,
    op: BoolBinOpCode,
    lhs: &Operand<'slice>,
    rhs: &Operand<'slice>
) -> Result<Operand<'eval>, EvalError> where
    'slice: 'eval, 

Perform a given BoolBinOpCode on a pair of Operands.

pub fn val_unop<'slice>(
    self,
    op: ValUnOpCode,
    operand: &Operand<'slice>
) -> Result<Operand<'eval>, EvalError> where
    'slice: 'eval, 

Perform a given ValUnOpCode on a given Operand.

pub fn bool_unop<'slice>(
    self,
    op: BoolUnOpCode,
    operand: &Operand<'slice>
) -> Result<Operand<'eval>, EvalError> where
    'slice: 'eval, 

Perform a given BoolUnOpCode on a given Operand.