implement procedural derive macro for IsPlutusData

Author: chfanghr

.gitignore

@@ -2,3 +2,4 @@ result
 .direnv
 .pre-commit-config.yaml
 .DS_Store
+target

flake.nix

@@ -23,6 +23,7 @@
         ./hercules-ci.nix
 
         ./plutus-ledger-api/build.nix
+        ./is-plutus-data-derive/build.nix
       ];
       debug = true;
       systems = [ "x86_64-linux" "x86_64-darwin" ];

is-plutus-data-derive/Cargo.lock

@@ -0,0 +1,13 @@
+[package]
+name = "is-plutus-data-derive"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+proc-macro2 = "1.0.87"
+quote = "1.0.37"
+syn = { version = "2.0.79", features = ["full", "extra-traits"]}
+thiserror = "1.0.64"
+
+[lib]
+proc-macro = true

is-plutus-data-derive/Cargo.toml

@@ -0,0 +1,18 @@
+{ inputs, ... }: {
+  perSystem = { config, system, ... }:
+    let
+      rustFlake =
+        inputs.flake-lang.lib.${system}.rustFlake {
+          src = ./.;
+          version = "0";
+          crateName = "is-plutus-data-derive";
+          devShellHook = config.settings.shell.hook;
+          cargoNextestExtraArgs = "--all-features";
+          generateDocs = false;
+        };
+
+    in
+    {
+      inherit (rustFlake) packages checks devShells;
+    };
+}

is-plutus-data-derive/build.nix

@@ -0,0 +1,13 @@
+use quote::ToTokens;
+use syn::{parse_macro_input, DeriveInput};
+
+pub(crate) mod derive_impl;
+
+#[proc_macro_derive(IsPlutusData, attributes(plutus_data_derive_strategy))]
+pub fn derive_is_plutus_data(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+    derive_impl::get_is_plutus_data_instance(input)
+        .unwrap()
+        .into_token_stream()
+        .into()
+}