napi_derive_backend/
codegen.rs

1use proc_macro2::{Ident, Span, TokenStream};
2
3use crate::BindgenResult;
4
5mod r#const;
6mod r#enum;
7mod r#fn;
8mod r#struct;
9
10pub use r#struct::rm_raw_prefix;
11
12pub const PROPERTY_ATTRIBUTE_DEFAULT: i32 = 0;
13pub const PROPERTY_ATTRIBUTE_WRITABLE: i32 = 1 << 0;
14pub const PROPERTY_ATTRIBUTE_ENUMERABLE: i32 = 1 << 1;
15pub const PROPERTY_ATTRIBUTE_CONFIGURABLE: i32 = 1 << 2;
16
17pub trait TryToTokens {
18  fn try_to_tokens(&self, tokens: &mut TokenStream) -> BindgenResult<()>;
19
20  fn try_to_token_stream(&self) -> BindgenResult<TokenStream> {
21    let mut tokens = TokenStream::default();
22    self.try_to_tokens(&mut tokens)?;
23
24    Ok(tokens)
25  }
26}
27
28fn get_intermediate_ident(name: &str) -> Ident {
29  let new_name = format!("__napi__{}", name);
30  Ident::new(&new_name, Span::call_site())
31}
32
33fn js_mod_to_token_stream(js_mod: Option<&String>) -> TokenStream {
34  js_mod
35    .map(|i| {
36      let i = format!("{}\0", i);
37      quote! { Some(#i) }
38    })
39    .unwrap_or_else(|| quote! { None })
40}