chore: add DataHasher alias of LightHasher (#1801)

* chore: add DataHasher alias of LightHasher

* chore: replace groth16 solana github dep with release 0.2.0

Author: ananas-block

Cargo.lock

@@ -194,7 +194,7 @@ light-poseidon = { version = "0.3.0" }
 light-test-utils = { path = "program-tests/utils", version = "1.2.1" }
 light-indexed-array = { path = "program-libs/indexed-array", version = "0.1.0" }
 create-address-program-test = { path = "program-tests/create-address-test-program", version = "1.0.0" }
-groth16-solana = { version = "0.1.0", git = "https://github.com/lightprotocol/groth16-solana.git", rev = "a18e0f4d3be6c24214fd293e2e7a998b160cda9b" }
+groth16-solana = { version = "0.2.0" }
 bytemuck = { version = "1.19.0" }
 arrayvec = "0.7"
 

Cargo.toml

@@ -256,6 +256,15 @@ pub fn light_hasher(input: TokenStream) -> TokenStream {
         .into()
 }
 
+/// Alias of `LightHasher`.
+#[proc_macro_derive(DataHasher, attributes(skip, hash))]
+pub fn data_hasher(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as ItemStruct);
+    derive_light_hasher(input)
+        .unwrap_or_else(|err| err.to_compile_error())
+        .into()
+}
+
 #[proc_macro_attribute]
 pub fn light_account(_: TokenStream, input: TokenStream) -> TokenStream {
     let input = parse_macro_input!(input as ItemStruct);