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Implement export_* attributes for macros

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This commit is contained in:
J Henry Waugh
2020-09-01 23:15:22 -05:00
parent 91b4f8a6bc
commit 3af49cec70
6 changed files with 274 additions and 41 deletions
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12
codegen/src/lib.rs
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@@ -124,10 +124,18 @@ pub fn export_fn(
#[proc_macro_attribute]
pub fn export_module(
_args: proc_macro::TokenStream,
args: proc_macro::TokenStream,
input: proc_macro::TokenStream,
) -> proc_macro::TokenStream {
let module_def = parse_macro_input!(input as module::Module);
let parsed_params = match crate::attrs::outer_item_attributes(args.into(), "export_module") {
Ok(args) => args,
Err(err) => return proc_macro::TokenStream::from(err.to_compile_error()),
};
let mut module_def = parse_macro_input!(input as module::Module);
if let Err(e) = module_def.set_params(parsed_params) {
return e.to_compile_error().into();
}
let tokens = module_def.generate();
proc_macro::TokenStream::from(tokens)
}