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 Slice {
pub input: Box<Expr>,
pub from: Box<Expr>,
pub until: Box<Expr>,
}
impl Slice {
pub fn new(input: Expr, from: Expr, until: Expr) -> Result<Self, InvalidArgumentError> {
match input.post_eval_tpe() {
SType::SColl(_) => {}
_ => {
return Err(InvalidArgumentError(format!(
"Expected Slice input to be SColl, got {0:?}",
input.tpe()
)))
}
};
if from.post_eval_tpe() != SType::SInt {
return Err(InvalidArgumentError(format!(
"Slice: expected from type to be SInt, got {0:?}",
from
)));
}
if until.post_eval_tpe() != SType::SInt {
return Err(InvalidArgumentError(format!(
"Slice: expected until type to be SInt, got {0:?}",
until
)));
}
Ok(Self {
input: input.into(),
from: from.into(),
until: until.into(),
})
}
pub fn tpe(&self) -> SType {
self.input.tpe()
}
}
impl HasStaticOpCode for Slice {
const OP_CODE: OpCode = OpCode::SLICE;
}
impl SigmaSerializable for Slice {
fn sigma_serialize<W: SigmaByteWrite>(&self, w: &mut W) -> SigmaSerializeResult {
self.input.sigma_serialize(w)?;
self.from.sigma_serialize(w)?;
self.until.sigma_serialize(w)
}
fn sigma_parse<R: SigmaByteRead>(r: &mut R) -> Result<Self, SigmaParsingError> {
let input = Expr::sigma_parse(r)?;
let from = Expr::sigma_parse(r)?;
let until = Expr::sigma_parse(r)?;
Ok(Self::new(input, from, until)?)
}
}
#[cfg(feature = "arbitrary")]
#[allow(clippy::unwrap_used)]
mod arbitrary {
use super::*;
use crate::mir::expr::arbitrary::ArbExprParams;
use proptest::prelude::*;
impl Arbitrary for Slice {
type Strategy = BoxedStrategy<Self>;
type Parameters = ();
fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy {
(
any_with::<Expr>(ArbExprParams {
tpe: SType::SColl(SType::SBoolean.into()),
depth: 1,
}),
any_with::<Expr>(ArbExprParams {
tpe: SType::SInt,
depth: 0,
}),
any_with::<Expr>(ArbExprParams {
tpe: SType::SInt,
depth: 0,
}),
)
.prop_map(|(input, from, until)| Self::new(input, from, until).unwrap())
.boxed()
}
}
}
#[cfg(test)]
#[cfg(feature = "arbitrary")]
#[allow(clippy::panic)]
mod tests {
use super::*;
use crate::mir::expr::Expr;
use crate::serialization::sigma_serialize_roundtrip;
use proptest::prelude::*;
proptest! {
#![proptest_config(ProptestConfig::with_cases(16))]
#[test]
fn ser_roundtrip(v in any::<Slice>()) {
let expr: Expr = v.into();
prop_assert_eq![sigma_serialize_roundtrip(&expr), expr];
}
}
}