Handle actual functions

tests/macros.rs

@@ -1,4 +1,5 @@
 extern crate qadapt;
+use std::io;
 
 use qadapt::allocate_panic;
 use qadapt::QADAPT;
@@ -20,13 +21,65 @@ fn no_allocate() {
     let _v: Vec<()> = Vec::with_capacity(0);
 }
 
+#[allocate_panic]
+fn no_allocate_ret() -> bool {
+    return true;
+}
+
+#[allocate_panic]
+fn no_allocate_implicit_ret() -> bool {
+    true
+}
+
+#[allocate_panic]
+fn no_allocate_arg(b: bool) -> bool {
+    b
+}
+
+#[allocate_panic]
+fn no_allocate_args(_b: bool, _u: usize, i: i64) -> i64 {
+    i
+}
+
+#[allocate_panic]
+fn return_result(r: Result<usize, io::Error>) -> Result<Result<usize, io::Error>, ()> {
+    Ok(r)
+}
+
 #[test]
-fn test_no_allocate() {
+fn macro_no_allocate() {
     no_allocate();
 }
 
 #[test]
 #[should_panic]
-fn test_allocates() {
+fn macro_allocates() {
     allocates();
 }
+
+#[test]
+fn macro_return() {
+    assert!(no_allocate_ret());
+}
+
+#[test]
+fn macro_implicit_return() {
+    assert!(no_allocate_ret());
+}
+
+#[test]
+fn macro_allocate_arg() {
+    no_allocate_arg(true);
+    no_allocate_arg(false);
+}
+
+#[test]
+fn macro_allocate_args() {
+    no_allocate_args(true, 0, -1);
+    no_allocate_args(false, 4, -90);
+}
+
+#[test]
+fn macro_return_result() {
+    return_result(Ok(16)).unwrap().unwrap();
+}