chore: bump cairo 2.4.0-rc2 (keep-starknet-strange#218)

<!--- Please provide a general summary of your changes in the title
above -->
Bumped alexandria_data_structures version number as there are breaking
changes in ByteArray serde
## Pull Request type

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- [ ] Bugfix
- [ ] Feature
- [ ] Code style update (formatting, renaming)
- [ ] Refactoring (no functional changes, no API changes)
- [x] Build-related changes
- [ ] Documentation content changes
- [ ] Other (please describe):

## What is the current behavior?

<!-- Please describe the current behavior that you are modifying, or
link to a relevant issue. -->

Issue Number: N/A

## What is the new behavior?

<!-- Please describe the behavior or changes that are being added by
this PR. -->

-
-
-

## Does this introduce a breaking change?

- [ ] Yes
- [ ] No

<!-- If this does introduce a breaking change, please describe the
impact and migration path for existing applications below. -->

## Other information

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Bumped alexandria_data_structures version number as there are breaking
changes in ByteArray serde

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Step 2 - Getting scarb
         uses: software-mansion/setup-scarb@v1
         with:
-          scarb-version: 2.3.1
+          scarb-version: 2.4.0-rc2
       - name: Step 3 - Trying to build
         run: scarb build
 
@@ -26,7 +26,7 @@ jobs:
       - name: Step 2 - Getting scarb
         uses: software-mansion/setup-scarb@v1
         with:
-          scarb-version: 2.3.1
+          scarb-version: 2.4.0-rc2
       - name: Step 3 - Running tests
         run: scarb test
 
@@ -40,6 +40,6 @@ jobs:
       - name: Step 2 - Getting scarb
         uses: software-mansion/setup-scarb@v1
         with:
-          scarb-version: 2.3.1
+          scarb-version: 2.4.0-rc2
       - name: Step 3 - Checking formatting
         run: scarb fmt --check

.tool-versions

@@ -1 +1 @@
-scarb 2.3.1
+scarb 2.4.0-rc2

Scarb.lock

@@ -18,7 +18,7 @@ dependencies = [
 
 [[package]]
 name = "alexandria_data_structures"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "alexandria_encoding",
 ]

Scarb.toml

@@ -1,24 +1,24 @@
 [workspace]
 members = [
-    "src/data_structures",
-    "src/encoding",
-    "src/linalg",
-    "src/math",
-    "src/merkle_tree",
-    "src/numeric",
-    "src/searching",
-    "src/sorting",
-    "src/storage",
-    "src/ascii",
-    "src/bytes",
+  "src/data_structures",
+  "src/encoding",
+  "src/linalg",
+  "src/math",
+  "src/merkle_tree",
+  "src/numeric",
+  "src/searching",
+  "src/sorting",
+  "src/storage",
+  "src/ascii",
+  "src/bytes",
 ]
 name = "alexandria"
 version = "0.1.0"
 description = "Community maintained Cairo and Starknet libraries"
 homepage = "https://github.com/keep-starknet-strange/alexandria/"
 
 [workspace.dependencies]
-starknet = "=2.3.1"
+starknet = ">=2.4.0-rc2"
 
 [workspace.tool.fmt]
 sort-module-level-items = true

src/data_structures/Scarb.toml

@@ -1,11 +1,11 @@
 [package]
 name = "alexandria_data_structures"
-version = "0.1.0"
+version = "0.2.0"
 description = "A set of Cairo data structure libraries and algorithms"
 homepage = "https://github.com/keep-starknet-strange/alexandria/tree/main/src/data_structures"
 
 [tool]
 fmt.workspace = true
 
 [dependencies]
-alexandria_encoding = { path = "../encoding" }
+alexandria_encoding = { path = "../encoding" }

src/data_structures/src/byte_array_ext.cairo

@@ -444,39 +444,3 @@ impl ByteArrayImpl of ByteArrayTraitExt {
         ByteArrayReaderTrait::new(self)
     }
 }
-
-impl ByteArraySerde of Serde<ByteArray> {
-    fn serialize(self: @ByteArray, ref output: Array<felt252>) {
-        let len = self.len();
-        len.serialize(ref output);
-        let bytes31_arr = self.data.span();
-        serialize_array_helper(bytes31_arr, ref output);
-
-        if (*self.pending_word_len > 0) {
-            output.append(*self.pending_word);
-        }
-    }
-
-    fn deserialize(ref serialized: Span<felt252>) -> Option<ByteArray> {
-        let length = *serialized.pop_front()?;
-        let length: usize = length.try_into().unwrap();
-        let denominator: NonZero<usize> = BYTES_IN_BYTES31.try_into().unwrap();
-        let (felt_length, pending_word_len) = DivRem::div_rem(length, denominator);
-        let mut arr: Array<bytes31> = array![];
-        let bytes31_arr = deserialize_array_helper(ref serialized, arr, felt_length.into())?;
-
-        let pending_word = if pending_word_len > 0 {
-            *serialized.pop_front()?
-        } else {
-            0
-        };
-
-        Option::Some(
-            ByteArray {
-                data: bytes31_arr,
-                pending_word: pending_word,
-                pending_word_len: pending_word_len.try_into().unwrap()
-            }
-        )
-    }
-}

src/data_structures/src/tests/byte_array_ext_test.cairo

@@ -1,4 +1,4 @@
-use alexandria_data_structures::byte_array_ext::{ByteArraySerde, ByteArrayTraitExt};
+use alexandria_data_structures::byte_array_ext::{ByteArrayTraitExt};
 use integer::u512;
 
 #[test]
@@ -431,23 +431,6 @@ fn test_reader_helper() {
     assert(reader.data == @ba, 'reader failed');
 }
 
-#[test]
-#[available_gas(1000000)]
-fn test_serialize() {
-    let mut out = array![];
-    let ba = test_byte_array_64();
-    ba.serialize(ref out);
-    let expected = serialized_byte_array_64();
-    assert(out == expected, 'serialization differs');
-}
-
-#[test]
-#[available_gas(1000000)]
-fn test_deserialize() {
-    let mut in = serialized_byte_array_64().span();
-    let ba: ByteArray = Serde::deserialize(ref in).unwrap();
-    assert(ba == test_byte_array_64(), 'deserialized ByteArray differs');
-}
 
 // helpers
 fn test_byte_array_8() -> ByteArray {
@@ -489,12 +472,3 @@ fn test_byte_array_64() -> ByteArray {
     ba1.append_word(0x3f40, 2);
     ba1
 }
-
-fn serialized_byte_array_64() -> Array<felt252> {
-    array![
-        0x40,
-        0x0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f,
-        0x202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e,
-        0x3f40
-    ]
-}