Optimized condition order, added regression test

src/ir/function.rs

@@ -496,7 +496,7 @@ impl FunctionSig {
             ty.ret_type().ok_or(ParseError::Continue)?
         };
 
-        let ret = if ctx.is_target_wasm32() && is_constructor {
+        let ret = if is_constructor && ctx.is_target_wasm32() {
             // Constructors in Clang wasm32 target return a pointer to the object
             // being constructed.
             let void = Item::builtin_type(TypeKind::Void, false, ctx);

tests/expectations/tests/wasm-constructor-returns.rs

@@ -0,0 +1,40 @@
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct Foo {
+    pub _address: u8,
+}
+#[test]
+fn bindgen_test_layout_Foo() {
+    assert_eq!(
+        ::std::mem::size_of::<Foo>(),
+        1usize,
+        concat!("Size of: ", stringify!(Foo))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<Foo>(),
+        1usize,
+        concat!("Alignment of ", stringify!(Foo))
+    );
+}
+extern "C" {
+    #[link_name = "\u{1}_ZN3FooC1Ei"]
+    pub fn Foo_Foo(
+        this: *mut Foo,
+        var: ::std::os::raw::c_int,
+    ) -> *mut ::std::os::raw::c_void;
+}
+impl Foo {
+    #[inline]
+    pub unsafe fn new(var: ::std::os::raw::c_int) -> Self {
+        let mut __bindgen_tmp = ::std::mem::MaybeUninit::uninit();
+        Foo_Foo(__bindgen_tmp.as_mut_ptr(), var);
+        __bindgen_tmp.assume_init()
+    }
+}

tests/headers/wasm-constructor-returns.hpp

@@ -0,0 +1,7 @@
+// bindgen-flags: --generate constructors,types -- -fvisibility=default --target=wasm32-unknown-emscripten
+
+class Foo {
+public:
+    Foo(int var);
+};
+