Get macro functional with tests

Cargo.toml

@@ -3,7 +3,24 @@ name = "comlexr"
 version = "0.1.0"
 edition = "2021"
 
+[lib]
+proc-macro = true
+
 [dependencies]
-proc-macro2 = "1.0.92"
-quote = "1.0.38"
-syn = { version = "2.0.96", features = ["full"] }
+proc-macro2 = "1"
+quote = "1"
+syn = { version = "2", features = ["full"] }
+
+[dev-dependencies]
+rstest = "0.24"
+
+[lints.rust]
+unsafe_code = "forbid"
+
+[lints.clippy]
+correctness = "deny"
+suspicious = "deny"
+perf = "deny"
+style = "deny"
+nursery = "deny"
+pedantic = "deny"