mirror of
https://github.com/fluencelabs/wasm-bindgen
synced 2025-06-20 16:26:33 +00:00
Move the macro support code into its own crate (#529)
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crates
@ -2,33 +2,22 @@
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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 wasm_bindgen_shared as shared;
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#[macro_use]
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extern crate syn;
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extern crate wasm_bindgen_backend as backend;
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extern crate wasm_bindgen_macro_support as macro_support;
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use macro_support::BindgenAttrs;
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use proc_macro::TokenStream;
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use quote::ToTokens;
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mod parser;
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use parser::MacroParse;
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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 =
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syn::parse::<parser::BindgenAttrs>(attr).expect("invalid arguments to #[wasm_bindgen]");
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let opts = syn::parse::<BindgenAttrs>(attr).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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item.macro_parse(&mut program, (Some(opts), &mut ret));
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program.to_tokens(&mut ret);
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let tokens = macro_support::expand(item, opts);
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if cfg!(feature = "xxx_debug_only_print_generated_code") {
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println!("{}", ret);
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println!("{}", tokens);
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}
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ret.into()
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tokens.into()
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}
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