ergotree_interpreter/eval/
decode_point.rs

1use ergotree_ir::mir::decode_point::DecodePoint;
2use ergotree_ir::mir::value::Value;
3
4use crate::eval::env::Env;
5use crate::eval::Context;
6use crate::eval::EvalError;
7use crate::eval::EvalError::Misc;
8use crate::eval::Evaluable;
9use ergo_chain_types::EcPoint;
10use ergotree_ir::mir::constant::TryExtractInto;
11use ergotree_ir::serialization::SigmaSerializable;
12
13impl Evaluable for DecodePoint {
14    fn eval<'ctx>(
15        &self,
16        env: &mut Env<'ctx>,
17        ctx: &Context<'ctx>,
18    ) -> Result<Value<'ctx>, EvalError> {
19        let point_bytes = self.input.eval(env, ctx)?.try_extract_into::<Vec<u8>>()?;
20        let point: EcPoint = SigmaSerializable::sigma_parse_bytes(&point_bytes).map_err(|_| {
21            Misc(format!(
22                "DecodePoint: Failed to parse EC point from bytes {:?}",
23                point_bytes,
24            ))
25        })?;
26        Ok(point.into())
27    }
28}
29
30#[cfg(test)]
31#[allow(clippy::unwrap_used)]
32#[allow(clippy::panic)]
33mod tests {
34    use crate::eval::tests::eval_out_wo_ctx;
35
36    use super::*;
37
38    use ergotree_ir::mir::expr::Expr;
39    use ergotree_ir::serialization::SigmaSerializable;
40    use proptest::prelude::*;
41
42    proptest! {
43
44        #[test]
45        fn eval(ecp in any::<EcPoint>()) {
46            let bytes = ecp.sigma_serialize_bytes().unwrap();
47            let expr: Expr = DecodePoint {input: Expr::Const(bytes.into()).into()}.into();
48            let res = eval_out_wo_ctx::<EcPoint>(&expr);
49            prop_assert_eq!(res, ecp);
50        }
51    }
52}
ergotree_interpreter/eval/decode_point.rs

ergotree_interpreter/eval/
decode_point.rs
