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use ergotree_ir::serialization::sigma_byte_reader::SigmaByteRead;
use ergotree_ir::serialization::sigma_byte_writer::SigmaByteWrite;
use ergotree_ir::serialization::SerializationError;
use ergotree_ir::serialization::SigmaSerializable;
use super::ContextExtension;
use std::convert::TryFrom;
use std::io;
#[derive(PartialEq, Eq, Hash, Debug, Clone)]
pub enum ProofBytes {
Empty,
Some(Vec<u8>),
}
impl From<ProofBytes> for Vec<u8> {
fn from(v: ProofBytes) -> Self {
match v {
ProofBytes::Empty => Vec::new(),
ProofBytes::Some(bytes) => bytes,
}
}
}
impl From<Vec<u8>> for ProofBytes {
fn from(bytes: Vec<u8>) -> Self {
if bytes.is_empty() {
ProofBytes::Empty
} else {
ProofBytes::Some(bytes)
}
}
}
impl From<ProofBytes> for String {
fn from(v: ProofBytes) -> Self {
match v {
ProofBytes::Empty => "".to_string(),
ProofBytes::Some(bytes) => base16::encode_lower(&bytes),
}
}
}
impl TryFrom<String> for ProofBytes {
type Error = base16::DecodeError;
fn try_from(value: String) -> Result<Self, Self::Error> {
base16::decode(&value).map(|bytes| bytes.into())
}
}
impl SigmaSerializable for ProofBytes {
fn sigma_serialize<W: SigmaByteWrite>(&self, w: &mut W) -> Result<(), io::Error> {
match self {
ProofBytes::Empty => w.put_u16(0)?,
ProofBytes::Some(bytes) => {
w.put_u16(bytes.len() as u16)?;
w.write_all(&bytes)?;
}
}
Ok(())
}
fn sigma_parse<R: SigmaByteRead>(r: &mut R) -> Result<Self, SerializationError> {
let proof_len = r.get_u16()?;
Ok(if proof_len == 0 {
ProofBytes::Empty
} else {
let mut bytes = vec![0; proof_len as usize];
r.read_exact(&mut bytes)?;
ProofBytes::Some(bytes)
})
}
}
#[derive(Debug, PartialEq, Eq, Clone)]
pub struct ProverResult {
pub proof: ProofBytes,
pub extension: ContextExtension,
}
#[cfg(feature = "arbitrary")]
mod arbitrary {
use super::*;
use proptest::{collection::vec, prelude::*};
impl Arbitrary for ProofBytes {
type Parameters = ();
type Strategy = BoxedStrategy<Self>;
fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy {
prop_oneof![
Just(ProofBytes::Empty),
(vec(any::<u8>(), 32..100))
.prop_map(ProofBytes::Some)
.boxed()
]
.boxed()
}
}
}