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chore(frontend): make Merkle proofs optional (#198)

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* Make frontend Merkle proofs optional

* Code review

* Clippy
This commit is contained in:
Ahmad Afuni 2025-04-17 21:51:02 +10:00 • committed by GitHub
parent 281f57f0a0
commit 17e6c2a092
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GPG key ID: B5690EEEBB952194
7 changed files with 98 additions and 48 deletions
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59
src/frontend/mod.rs
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@ -262,9 +262,39 @@ impl MainPodBuilder {
}
}
/// Fills in auxiliary data if necessary/possible.
fn fill_in_aux(op: Operation) -> Result<Operation> {
use NativeOperation::{ContainsFromEntries, NotContainsFromEntries};
use OperationAux as OpAux;
use OperationType::Native;
let op_type = &op.0;
match (op_type, &op.2) {
(Native(ContainsFromEntries), OpAux::None)
| (Native(NotContainsFromEntries), OpAux::None) => {
let container =
op.1.get(0)
.and_then(|arg| arg.value())
.ok_or(anyhow!("Invalid container argument for op {}.", op))?;
let key =
op.1.get(1)
.and_then(|arg| arg.value())
.ok_or(anyhow!("Invalid key argument for op {}.", op))?;
let proof = if op_type == &Native(ContainsFromEntries) {
container.prove_existence(key)?.1
} else {
container.prove_nonexistence(key)?
};
Ok(Operation(op_type.clone(), op.1, OpAux::MerkleProof(proof)))
}
_ => Ok(op),
}
}
fn op(&mut self, public: bool, op: Operation) -> Result<Statement, anyhow::Error> {
use NativeOperation::*;
let mut op = Self::lower_op(op);
let mut op = Self::fill_in_aux(Self::lower_op(op))?;
let Operation(op_type, ref mut args, _) = &mut op;
// TODO: argument type checking
let pred = op_type.output_predicate().map(Ok).unwrap_or_else(|| {
@ -736,21 +766,21 @@ pub mod build_utils {
(custom, $op:expr, $($arg:expr),+) => { $crate::frontend::Operation(
$crate::middleware::OperationType::Custom($op),
$crate::op_args!($($arg),*), $crate::middleware::OperationAux::None) };
(dict_contains, $dict:expr, $key:expr, $value:expr, $aux:expr) => { $crate::frontend::Operation(
(dict_contains, $dict:expr, $key:expr, $value:expr) => { $crate::frontend::Operation(
$crate::middleware::OperationType::Native($crate::middleware::NativeOperation::DictContainsFromEntries),
$crate::op_args!($dict, $key, $value), $crate::middleware::OperationAux::MerkleProof($aux)) };
(dict_not_contains, $dict:expr, $key:expr, $aux:expr) => { $crate::frontend::Operation(
$crate::op_args!($dict, $key, $value), $crate::middleware::OperationAux::None) };
(dict_not_contains, $dict:expr, $key:expr) => { $crate::frontend::Operation(
$crate::middleware::OperationType::Native($crate::middleware::NativeOperation::DictNotContainsFromEntries),
$crate::op_args!($dict, $key), $crate::middleware::OperationAux::MerkleProof($aux)) };
(set_contains, $set:expr, $value:expr, $aux:expr) => { $crate::frontend::Operation(
$crate::op_args!($dict, $key), $crate::middleware::OperationAux::None) };
(set_contains, $set:expr, $value:expr) => { $crate::frontend::Operation(
$crate::middleware::OperationType::Native($crate::middleware::NativeOperation::SetContainsFromEntries),
$crate::op_args!($set, $value), $crate::middleware::OperationAux::MerkleProof($aux)) };
(set_not_contains, $set:expr, $value:expr, $aux:expr) => { $crate::frontend::Operation(
$crate::op_args!($set, $value), $crate::middleware::OperationAux::None) };
(set_not_contains, $set:expr, $value:expr) => { $crate::frontend::Operation(
$crate::middleware::OperationType::Native($crate::middleware::NativeOperation::SetNotContainsFromEntries),
$crate::op_args!($set, $value), $crate::middleware::OperationAux::MerkleProof($aux)) };
(array_contains, $array:expr, $index:expr, $value:expr, $aux:expr) => { $crate::frontend::Operation(
$crate::op_args!($set, $value), $crate::middleware::OperationAux::None) };
(array_contains, $array:expr, $index:expr, $value:expr) => { $crate::frontend::Operation(
$crate::middleware::OperationType::Native($crate::middleware::NativeOperation::ArrayContainsFromEntries),
$crate::op_args!($array, $index, $value), $crate::middleware::OperationAux::MerkleProof($aux)) };
$crate::op_args!($array, $index, $value), $crate::middleware::OperationAux::None) };
}
}
@ -781,12 +811,7 @@ pub mod tests {
// Check that frontend key-values agree with those embedded in a
// SignedPod.
fn check_kvs(pod: &SignedPod) -> Result<()> {
let kvs = pod
.kvs
.clone()
.into_iter()
.map(|(k, v)| (k, v))
.collect::<HashMap<_, _>>();
let kvs = pod.kvs.clone().into_iter().collect::<HashMap<_, _>>();
let embedded_kvs = pod
.pod
.kvs()