use crate::serialization::op_code::OpCode;
use crate::serialization::sigma_byte_reader::SigmaByteRead;
use crate::serialization::sigma_byte_writer::SigmaByteWrite;
use crate::serialization::SigmaParsingError;
use crate::serialization::SigmaSerializable;
use crate::serialization::SigmaSerializeResult;
use crate::types::stype::SType;
use super::expr::Expr;
use super::expr::InvalidArgumentError;
use crate::has_opcode::HasStaticOpCode;
#[derive(PartialEq, Eq, Debug, Clone)]
pub struct Atleast {
pub bound: Box<Expr>,
pub input: Box<Expr>,
}
impl Atleast {
pub fn new(bound: Expr, input: Expr) -> Result<Self, InvalidArgumentError> {
if input.post_eval_tpe() != SType::SColl(SType::SSigmaProp.into()) {
return Err(InvalidArgumentError(format!(
"Expected Atleast input to be SColl, got {0:?}",
input.tpe()
)));
}
if bound.post_eval_tpe() != SType::SInt {
return Err(InvalidArgumentError(format!(
"Atleast: expected bound type to be SInt, got {0:?}",
bound
)));
}
Ok(Self {
bound: bound.into(),
input: input.into(),
})
}
pub fn tpe(&self) -> SType {
SType::SSigmaProp
}
}
impl HasStaticOpCode for Atleast {
const OP_CODE: OpCode = OpCode::ATLEAST;
}
impl SigmaSerializable for Atleast {
fn sigma_serialize<W: SigmaByteWrite>(&self, w: &mut W) -> SigmaSerializeResult {
self.bound.sigma_serialize(w)?;
self.input.sigma_serialize(w)
}
fn sigma_parse<R: SigmaByteRead>(r: &mut R) -> Result<Self, SigmaParsingError> {
let bound = Expr::sigma_parse(r)?;
let input = Expr::sigma_parse(r)?;
Ok(Self::new(bound, input)?)
}
}
#[cfg(feature = "arbitrary")]
mod arbitrary {
use super::*;
use crate::mir::expr::arbitrary::ArbExprParams;
use proptest::prelude::*;
impl Arbitrary for Atleast {
type Strategy = BoxedStrategy<Self>;
type Parameters = usize;
fn arbitrary_with(args: Self::Parameters) -> Self::Strategy {
(
any_with::<Expr>(ArbExprParams {
tpe: SType::SInt,
depth: args,
}),
any_with::<Expr>(ArbExprParams {
tpe: SType::SColl(SType::SSigmaProp.into()),
depth: args,
}),
)
.prop_map(|(n, expr)| Self {
bound: n.into(),
input: expr.into(),
})
.boxed()
}
}
}
#[cfg(test)]
#[allow(clippy::panic)]
mod tests {
use super::*;
use crate::mir::expr::Expr;
use crate::serialization::sigma_serialize_roundtrip;
use proptest::prelude::*;
proptest! {
#[test]
fn ser_roundtrip(v in any_with::<Atleast>(1)) {
let expr: Expr = v.into();
prop_assert_eq![sigma_serialize_roundtrip(&expr), expr];
}
}
}