mirror of
https://github.com/fluencelabs/wasm-bindgen
synced 2025-05-13 22:31:21 +00:00
29 lines
832 B
Rust
Executable File
29 lines
832 B
Rust
Executable File
#![feature(proc_macro)]
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extern crate proc_macro;
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extern crate proc_macro2;
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extern crate quote;
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extern crate syn;
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extern crate wasm_bindgen_backend as backend;
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use proc_macro::TokenStream;
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use quote::ToTokens;
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#[proc_macro_attribute]
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pub fn wasm_bindgen(attr: TokenStream, input: TokenStream) -> TokenStream {
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let item = syn::parse::<syn::Item>(input.clone()).expect("expected a valid Rust item");
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let opts = syn::parse::<backend::ast::BindgenAttrs>(attr)
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.expect("invalid arguments to #[wasm_bindgen]");
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let mut ret = proc_macro2::TokenStream::new();
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let mut program = backend::ast::Program::default();
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program.push_item(item, Some(opts), &mut ret);
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program.to_tokens(&mut ret);
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if cfg!(feature = "xxx_debug_only_print_generated_code") {
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println!("{}", ret);
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}
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ret.into()
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}
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