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Serialize and hash custom predicates (#90)

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* Print pods from SignedPodBuilder

* Add additional print to test printing SignedPodBuilder

* Mock-prove and print MainPod

* Implement ToFields for custom predicates and dependencies

* Test: print serialization of a recursive batch

* Rearrange serialization of CustomPredicate so args_len is always in the same position

* Serialize predicates with first entry nonzero to avoid collision with padding

* Off by one error in ethdos test BatchSelf(2)

* cargo fmt

* not a typo

* Typos, trying again
This commit is contained in:
tideofwords 2025-02-26 11:28:27 -08:00 • committed by GitHub
parent 05c21ebe6a
commit a37b96ab4f
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8 changed files with 262 additions and 39 deletions
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18
src/middleware/statement.rs
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@ -3,7 +3,7 @@ use plonky2::field::types::Field;
use std::{collections::HashMap, fmt};
use strum_macros::FromRepr;
use super::{AnchoredKey, CustomPredicateRef, Hash, Predicate, ToFields, Value, F};
use super::{AnchoredKey, CustomPredicateRef, Hash, Params, Predicate, ToFields, Value, F};
pub const KEY_SIGNER: &str = "_signer";
pub const KEY_TYPE: &str = "_type";
@ -25,8 +25,8 @@ pub enum NativePredicate {
}
impl ToFields for NativePredicate {
fn to_fields(self) -> (Vec<F>, usize) {
(vec![F::from_canonical_u64(self as u64)], 1)
fn to_fields(&self, params: Params) -> (Vec<F>, usize) {
(vec![F::from_canonical_u64(*self as u64)], 1)
}
}
@ -88,12 +88,12 @@ impl Statement {
}
impl ToFields for Statement {
fn to_fields(self) -> (Vec<F>, usize) {
let (native_statement_f, native_statement_f_len) = self.code().to_fields();
fn to_fields(&self, params: Params) -> (Vec<F>, usize) {
let (native_statement_f, native_statement_f_len) = self.code().to_fields(params);
let (vec_statementarg_f, vec_statementarg_f_len) = self
.args()
.into_iter()
.map(|statement_arg| statement_arg.to_fields())
.map(|statement_arg| statement_arg.to_fields(params))
.fold((Vec::new(), 0), |mut acc, (f, l)| {
acc.0.extend(f);
acc.1 += l;
@ -156,7 +156,7 @@ impl StatementArg {
}
impl ToFields for StatementArg {
fn to_fields(self) -> (Vec<F>, usize) {
fn to_fields(&self, params: Params) -> (Vec<F>, usize) {
// NOTE: current version returns always the same amount of field elements in the returned
// vector, which means that the `None` case is padded with 8 zeroes, and the `Literal` case
// is padded with 4 zeroes. Since the returned vector will mostly be hashed (and reproduced
@ -175,8 +175,8 @@ impl ToFields for StatementArg {
.concat()
}
StatementArg::Key(ak) => {
let (podid_f, _) = ak.0.to_fields();
let (hash_f, _) = ak.1.to_fields();
let (podid_f, _) = ak.0.to_fields(params);
let (hash_f, _) = ak.1.to_fields(params);
[podid_f, hash_f].concat()
}
};