codegen: Use the canonical type to determine whether we should convert to a pointer an argument.

Fixes https://github.com/Yamakaky/rust-bindgen/issues/407

2 files changed, 13 insertions, 0 deletions

diff --git a/libbindgen/tests/expectations/tests/typedefd-array-as-function-arg.rs b/libbindgen/tests/expectations/tests/typedefd-array-as-function-arg.rs
new file mode 100644
index 00000000..56074f75
--- /dev/null
+++ b/libbindgen/tests/expectations/tests/typedefd-array-as-function-arg.rs
@@ -0,0 +1,10 @@
+/* automatically generated by rust-bindgen */
+
+
+#![allow(non_snake_case)]
+
+
+pub type myVector3 = [f32; 3usize];
+extern "C" {
+    pub fn modifyVectorFunc(v: *mut f32);
+}
diff --git a/libbindgen/tests/headers/typedefd-array-as-function-arg.h b/libbindgen/tests/headers/typedefd-array-as-function-arg.h
new file mode 100644
index 00000000..93790591
--- /dev/null
+++ b/libbindgen/tests/headers/typedefd-array-as-function-arg.h
@@ -0,0 +1,3 @@
+// foo.h
+typedef float myVector3[3];
+void modifyVectorFunc(myVector3 v);