Fixed dependencies at syn version 2

Author: tbetcke

Cargo.toml

@@ -28,7 +28,7 @@ num = "0.4"
 c-api-tools-macros = { path = "c-api-tools-macros" }
 
 [build-dependencies]
-cbindgen = "0.27.0"
+cbindgen = "0.29.4"
 
 [package.metadata.docs.rs]
 cargo-args = ["-Zunstable-options", "-Zrustdoc-scrape-examples"]

c-api-tools-macros/Cargo.toml

@@ -22,8 +22,8 @@ name = "c_api_tools_macros"
 proc-macro = true
 
 [dependencies]
-syn = ">=2.0.87"
+syn = { version = "2", features = ["full"]}
 proc-macro2 = "1.0"
-darling = "0.20"
+darling = "0.23"
 quote = "1.0"
-itertools = "0.13"
+itertools = "0.15"

example_project/Cargo.toml

@@ -16,4 +16,4 @@ c-api-tools = { path = "../" }
 num = "0.4"
 
 [build-dependencies]
-cbindgen = "0.27"
+cbindgen = "0.29"

example_project/bindings.h

@@ -18,4 +18,7 @@ struct MyWrapper *my_wrapper_create(void);
  */
 void my_wrapper_free(struct MyWrapper *ptr);
 
+/**
+ * Test function.
+ */
 void test_func(struct MyWrapper *spam);