Ignore syn::Type::Group in is_python

2021-03-18 18:54:35 +01:00 · 2021-03-18 18:54:35 +01:00 · adc6e6fe4e
parent 20452a7c09
commit adc6e6fe4e
1 changed files with 5 additions and 1 deletions
--- a/pyo3-macros-backend/src/utils.rs
+++ b/pyo3-macros-backend/src/utils.rs
@ -27,7 +27,11 @@ macro_rules! ensure_spanned {
 }

 /// Check if the given type `ty` is `pyo3::Python`.
-pub fn is_python(ty: &syn::Type) -> bool {
+pub fn is_python(mut ty: &syn::Type) -> bool {
+    while let syn::Type::Group(group) = ty {
+        // Macros can create invisible delimiters around types.
+        ty = &*group.elem;
+    }
    match ty {
        syn::Type::Path(typath) => typath
            .path