feat: wdk_build::TraitsMap for collection of implemented traits for bindgen output

crates/wdk-build/Cargo.toml

@@ -32,6 +32,7 @@ rustversion.workspace = true
 semver.workspace = true
 serde = { features = ["derive"], workspace = true }
 serde_json.workspace = true
+syn = { features = ["extra-traits", "full", "parsing"], workspace = true }
 thiserror.workspace = true
 tracing.workspace = true
 windows = { features = [

crates/wdk-build/src/bindgen.rs

@@ -142,6 +142,9 @@ impl BuilderExt for Builder {
             // Defaults enums to generate as a set of constants contained in a module (default value
             // is EnumVariation::Consts which generates enums as global constants)
             .default_enum_style(bindgen::EnumVariation::ModuleConsts)
+            // `size_t`/`ssize_t` are pointer-width on every supported Windows
+            // driver target (x64, ARM64, x86), matching Rust's `usize`/`isize`.
+            .size_t_is_usize(true)
             .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
             .parse_callbacks(Box::new(WdkCallbacks::new(config)))
             .formatter(bindgen::Formatter::Prettyplease)