Cannot use two #[swift_bridge(..)] attributes on the same function

[chinedufn]

If two #[swift_bridge(..)] attributes are used on the same funtion the first one will get ignored.

mod foo {
    extern "Rust" {
        type Foo;

        #[swift_bridge(init)]
        #[swift_bridge(associated_to = Foo)]
        fn bar () -> Foo;
    }
}

This is ignoring of the first #[swift_bridge(..)] attribute is happening here

swift-bridge/crates/swift-bridge-ir/src/parse/parse_extern_mod.rs

Lines 97 to 102 in 1b797f6

	ForeignItem::Fn(func) => {
	let mut attributes = FunctionAttributes::default();
	for attr in func.attrs.iter() {
	attributes = attr.parse_args()?;
	}

---

Potential Solutions

Potential Solution 1 - Merge function attributes

First start by using .parse_args()? to parse a bunch of FunctionAttr using a new type wrapper struct RawFuncAttrs(syn::punctuated::Punctuated::<FunctionAttr, syn::Token![,]>);

Then combine them all using something like: FunctionAttributes::from_raw(attributes: &[RawFuncAttrs]).

swift-bridge/crates/swift-bridge-ir/src/parse/parse_extern_mod/function_attributes.rs

Lines 67 to 68 in 1b797f6

	let punctuated =
	syn::punctuated::Punctuated::<FunctionAttr, syn::Token![,]>::parse_terminated(input)?;

RawFuncAttrs would look similar to this

swift-bridge/crates/swift-bridge-ir/src/parse/parse_extern_mod/function_attributes.rs

Lines 63 to 76 in 1b797f6

	impl Parse for FunctionAttributes {
	fn parse(input: ParseStream) -> syn::Result<Self> {
	let mut attributes = FunctionAttributes::default();
	let punctuated =
	syn::punctuated::Punctuated::<FunctionAttr, syn::Token![,]>::parse_terminated(input)?;
	for attr in punctuated.into_iter() {
	attributes.store_attrib(attr);
	}
	Ok(attributes)
	}
	}

Potential Solution 2 - Make the user specify all attributes together

Don't allow multiple separate #[swift_bridge(..)] attributes and instead make the user say #[swift_bridge(init, associated_to = Foo)] if they want to express multiple properties.

Potential Solution 3 - ...

Trying to quickly open this issue and go do something else so I didn't think of all possible solutions.