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fix: always use u32 for indexing arrays (2) #11

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fix: always use u32 for indexing arrays (2) #11

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68 changes: 34 additions & 34 deletions src/encoding.nr
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Original file line number Diff line number Diff line change
Expand Up @@ -298,18 +298,18 @@ pub(crate) fn encode_message_extension(w: Field) -> EncodedWitness {
let mut base4_encoded_slices: [Field; 12] = [0; 12];
// 1, 5, 1, 1, 8, 3, 8, 8, 8, 9, 9, 3

base4_encoded_slices[0] = BASE4_ENCODE_1BIT_TABLE[s[0]];
base4_encoded_slices[1] = BASE4_ENCODE_5BIT_TABLE[s[1]];
base4_encoded_slices[2] = BASE4_ENCODE_1BIT_TABLE[s[2]];
base4_encoded_slices[3] = BASE4_ENCODE_1BIT_TABLE[s[3]];
base4_encoded_slices[4] = BASE4_ENCODE_8BIT_TABLE[s[4]];
base4_encoded_slices[5] = BASE4_ENCODE_3BIT_TABLE[s[5]];
base4_encoded_slices[6] = BASE4_ENCODE_8BIT_TABLE[s[6]];
base4_encoded_slices[7] = BASE4_ENCODE_8BIT_TABLE[s[7]];
base4_encoded_slices[8] = BASE4_ENCODE_8BIT_TABLE[s[8]];
base4_encoded_slices[9] = BASE4_ENCODE_9BIT_TABLE[s[9]];
base4_encoded_slices[10] = BASE4_ENCODE_9BIT_TABLE[s[10]];
base4_encoded_slices[11] = BASE4_ENCODE_3BIT_TABLE[s[11]];
base4_encoded_slices[0] = BASE4_ENCODE_1BIT_TABLE[s[0] as u32];
base4_encoded_slices[1] = BASE4_ENCODE_5BIT_TABLE[s[1] as u32];
base4_encoded_slices[2] = BASE4_ENCODE_1BIT_TABLE[s[2] as u32];
base4_encoded_slices[3] = BASE4_ENCODE_1BIT_TABLE[s[3] as u32];
base4_encoded_slices[4] = BASE4_ENCODE_8BIT_TABLE[s[4] as u32];
base4_encoded_slices[5] = BASE4_ENCODE_3BIT_TABLE[s[5] as u32];
base4_encoded_slices[6] = BASE4_ENCODE_8BIT_TABLE[s[6] as u32];
base4_encoded_slices[7] = BASE4_ENCODE_8BIT_TABLE[s[7] as u32];
base4_encoded_slices[8] = BASE4_ENCODE_8BIT_TABLE[s[8] as u32];
base4_encoded_slices[9] = BASE4_ENCODE_9BIT_TABLE[s[9] as u32];
base4_encoded_slices[10] = BASE4_ENCODE_9BIT_TABLE[s[10] as u32];
base4_encoded_slices[11] = BASE4_ENCODE_3BIT_TABLE[s[11] as u32];

// 42
let mut bits19to61 = base4_encoded_slices[10];
Expand Down Expand Up @@ -396,15 +396,15 @@ pub(crate) fn encode_e(e: Field) -> EncodedChoose {

let mut base4_encoded_slices: [Field; 9] = [0; 9];
// 18 gates?
base4_encoded_slices[0] = BASE4_ENCODE_8BIT_TABLE[s[0]];
base4_encoded_slices[1] = BASE4_ENCODE_6BIT_TABLE[s[1]];
base4_encoded_slices[2] = BASE4_ENCODE_4BIT_TABLE[s[2]];
base4_encoded_slices[3] = BASE4_ENCODE_6BIT_TABLE[s[3]];
base4_encoded_slices[4] = BASE4_ENCODE_8BIT_TABLE[s[4]];
base4_encoded_slices[5] = BASE4_ENCODE_9BIT_TABLE[s[5]];
base4_encoded_slices[6] = BASE4_ENCODE_7BIT_TABLE[s[6]];
base4_encoded_slices[7] = BASE4_ENCODE_8BIT_TABLE[s[7]];
base4_encoded_slices[8] = BASE4_ENCODE_8BIT_TABLE[s[8]];
base4_encoded_slices[0] = BASE4_ENCODE_8BIT_TABLE[s[0] as u32];
base4_encoded_slices[1] = BASE4_ENCODE_6BIT_TABLE[s[1] as u32];
base4_encoded_slices[2] = BASE4_ENCODE_4BIT_TABLE[s[2] as u32];
base4_encoded_slices[3] = BASE4_ENCODE_6BIT_TABLE[s[3] as u32];
base4_encoded_slices[4] = BASE4_ENCODE_8BIT_TABLE[s[4] as u32];
base4_encoded_slices[5] = BASE4_ENCODE_9BIT_TABLE[s[5] as u32];
base4_encoded_slices[6] = BASE4_ENCODE_7BIT_TABLE[s[6] as u32];
base4_encoded_slices[7] = BASE4_ENCODE_8BIT_TABLE[s[7] as u32];
base4_encoded_slices[8] = BASE4_ENCODE_8BIT_TABLE[s[8] as u32];

// 14, 18, 41

Expand Down Expand Up @@ -480,15 +480,15 @@ pub(crate) fn encode_a(a: Field) -> EncodedMajority {
let mut base4_encoded_slices: [Field; 9] = [0; 9];
// 18 gates?

base4_encoded_slices[0] = BASE4_ENCODE_8BIT_TABLE[s[0]];
base4_encoded_slices[1] = BASE4_ENCODE_8BIT_TABLE[s[1]];
base4_encoded_slices[2] = BASE4_ENCODE_8BIT_TABLE[s[2]];
base4_encoded_slices[3] = BASE4_ENCODE_4BIT_TABLE[s[3]];
base4_encoded_slices[4] = BASE4_ENCODE_6BIT_TABLE[s[4]];
base4_encoded_slices[5] = BASE4_ENCODE_5BIT_TABLE[s[5]];
base4_encoded_slices[6] = BASE4_ENCODE_9BIT_TABLE[s[6]];
base4_encoded_slices[7] = BASE4_ENCODE_8BIT_TABLE[s[7]];
base4_encoded_slices[8] = BASE4_ENCODE_8BIT_TABLE[s[8]];
base4_encoded_slices[0] = BASE4_ENCODE_8BIT_TABLE[s[0] as u32];
base4_encoded_slices[1] = BASE4_ENCODE_8BIT_TABLE[s[1] as u32];
base4_encoded_slices[2] = BASE4_ENCODE_8BIT_TABLE[s[2] as u32];
base4_encoded_slices[3] = BASE4_ENCODE_4BIT_TABLE[s[3] as u32];
base4_encoded_slices[4] = BASE4_ENCODE_6BIT_TABLE[s[4] as u32];
base4_encoded_slices[5] = BASE4_ENCODE_5BIT_TABLE[s[5] as u32];
base4_encoded_slices[6] = BASE4_ENCODE_9BIT_TABLE[s[6] as u32];
base4_encoded_slices[7] = BASE4_ENCODE_8BIT_TABLE[s[7] as u32];
base4_encoded_slices[8] = BASE4_ENCODE_8BIT_TABLE[s[8] as u32];

// 2 gates?
let mut low28 = base4_encoded_slices[3] * BASE4_POWERS[8];
Expand Down Expand Up @@ -550,7 +550,7 @@ pub(crate) fn decode_majority(a: Field, b: Field, c: Field) -> Field {
reconstructed *= 1024;
reconstructed += slices[12 - i];
decoded *= 32;
decoded += BASE4_MAJORITY_DECODE_5BIT_TABLE[slices[12 - i]];
decoded += BASE4_MAJORITY_DECODE_5BIT_TABLE[slices[12 - i] as u32];
}
assert_eq(reconstructed, encoded);

Expand All @@ -570,7 +570,7 @@ pub(crate) fn decode_choose(e: Field, f: Field, g: Field) -> Field {
reconstructed *= 1024;
reconstructed += lhs_slices[12 - i];
decoded_lhs *= 32;
decoded_lhs += BASE4_PARTIAL_CHOOSE_DECODE_5BIT_TABLE[lhs_slices[12 - i]];
decoded_lhs += BASE4_PARTIAL_CHOOSE_DECODE_5BIT_TABLE[lhs_slices[12 - i] as u32];
}
assert_eq(reconstructed, two_e_plus_g);

Expand All @@ -584,7 +584,7 @@ pub(crate) fn decode_choose(e: Field, f: Field, g: Field) -> Field {
reconstructed *= 1024;
reconstructed += rhs_slices[12 - i];
decoded_rhs *= 32;
decoded_rhs += BASE4_MAJORITY_DECODE_5BIT_TABLE[rhs_slices[12 - i]];
decoded_rhs += BASE4_MAJORITY_DECODE_5BIT_TABLE[rhs_slices[12 - i] as u32];
}
assert_eq(reconstructed, e_plus_f);

Expand All @@ -606,7 +606,7 @@ pub(crate) fn decode_xor(encoded: Field) -> Field {
reconstructed *= 1024;
reconstructed += slices[12 - i];
decoded *= 32;
decoded += BASE4_XOR_DECODE_5BIT_TABLE[slices[12 - i]];
decoded += BASE4_XOR_DECODE_5BIT_TABLE[slices[12 - i] as u32];
}
assert_eq(reconstructed, encoded);

Expand Down
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