Feature: ABI crate

.github/workflows/gas-test.yml

@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        toolchain: ["1.92", "1.85"]
+        toolchain: ["1.95", "1.85"]
     steps:
       - name: Checkout code
         uses: actions/checkout@v5
@@ -46,7 +46,7 @@ jobs:
         with:
           toolchain: ${{ matrix.toolchain }}
 
-      - name: Run gas tests (prod)
+      - name: Run gas tests (experimental)
         run: |
           cd contracts/feature-tests/gas-tests
           cargo test --features wasmer-experimental 

Cargo.toml

@@ -2,6 +2,9 @@
 resolver = "3"
 
 members = [
+  "data/abi",
+  "data/abi-derive-common",
+  "data/abi-derive",
   "data/codec",
   "data/codec-derive",
   "data/human-readable",

chain/core/Cargo.toml

@@ -17,18 +17,24 @@ keywords = ["multiversx", "blockchain", "vm", "tools"]
 categories = ["cryptography::cryptocurrencies", "development-tools::debugging"]
 
 [features]
-std = ["bech32", "serde", "hex", "blake2", "sha2", "sha3"]
+std = ["base64", "bech32", "serde", "hex", "blake2", "sha2", "sha3", "ed25519-dalek"]
 
 [dependencies]
 bitflags = "2.9"
+base64 = { version = "0.22", optional = true }
 bech32 = { version = "0.11", optional = true }
 serde = { version = "1.0", features = ["derive"], optional = true }
 hex = { version = "0.4", optional = true }
 blake2 = { version = "0.10", optional = true }
 sha2 = { version = "0.11", optional = true }
 sha3 = { version = "0.12", optional = true }
+ed25519-dalek = { version = "2.1", optional = true }
 
 [dependencies.multiversx-sc-codec]
-version = "=0.25.0"
+version = "0.25.0"
 path = "../../data/codec"
 features = ["derive"]
+
+[dev-dependencies]
+serde_json = "1.0"
+hex-literal = "1.0"

chain/core/src/std.rs

@@ -1,7 +1,9 @@
+mod base64;
 mod bech32_address;
 mod code_hash;
 pub mod crypto;
 pub mod new_address;
 
-pub use bech32_address::Bech32Address;
+pub use base64::{base64_decode, base64_encode};
+pub use bech32_address::{Bech32Address, Bech32Hrp};
 pub use code_hash::{CODE_HASH_LEN, code_hash};

chain/core/src/std/base64.rs

@@ -0,0 +1,20 @@
+use base64::{Engine as _, engine::general_purpose};
+
+/// Decodes a base64-encoded byte slice using the standard alphabet.
+///
+/// Returns an error if the input contains characters outside the base64 alphabet
+/// or has invalid padding.
+pub fn base64_decode<T>(to_decode: T) -> Result<Vec<u8>, base64::DecodeError>
+where
+    T: AsRef<[u8]>,
+{
+    general_purpose::STANDARD.decode(to_decode)
+}
+
+/// Encodes a byte slice as a base64 string using the standard alphabet with padding.
+pub fn base64_encode<T>(to_encode: T) -> String
+where
+    T: AsRef<[u8]>,
+{
+    general_purpose::STANDARD.encode(to_encode)
+}