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Use expect to remove unreachable break.

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This commit is contained in:
Jim Posen
2019-08-19 14:04:41 +02:00
parent 40f768ed60
commit d4b6c0e1a2
1 changed files with 18 additions and 22 deletions
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18
zcash_proofs/src/circuit/pedersen_hash.rs
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@@ -72,8 +72,12 @@ where
window_i += 1; window_i += 1;
} }
match segment_result { let segment_result = segment_result.expect(
Some(segment_result) => { "bits is not exhausted due to while condition;
thus there must be a segment window;
thus there must be a segment result",
);
// Convert this segment into twisted Edwards form. // Convert this segment into twisted Edwards form.
let segment_result = segment_result.into_edwards( let segment_result = segment_result.into_edwards(
cs.namespace(|| format!("conversion of segment {} into edwards", segment_i)), cs.namespace(|| format!("conversion of segment {} into edwards", segment_i)),
@@ -83,9 +87,7 @@ where
match edwards_result { match edwards_result {
Some(ref mut edwards_result) => { Some(ref mut edwards_result) => {
*edwards_result = segment_result.add( *edwards_result = segment_result.add(
cs.namespace(|| { cs.namespace(|| format!("addition of segment {} to accumulator", segment_i)),
format!("addition of segment {} to accumulator", segment_i)
}),
edwards_result, edwards_result,
params, params,
)?; )?;
@@ -94,12 +96,6 @@ where
edwards_result = Some(segment_result); edwards_result = Some(segment_result);
} }
} }
}
None => {
// We didn't process any new bits.
break;
}
}
segment_i += 1; segment_i += 1;
} }