ribir_macros 0.4.0-alpha.26

A non-intrusive declarative GUI framework, to build modern native/wasm cross-platform applications.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

use proc_macro2::TokenStream;
use quote::quote_spanned;
use syn::spanned::Spanned;

use crate::{
  error::result_to_token_stream, symbol_process::DollarRefsCtx, watch_macro::process_watch_body,
};

pub fn gen_code(input: TokenStream, refs_ctx: Option<&mut DollarRefsCtx>) -> TokenStream {
  let span = input.span();
  let res = process_watch_body(input, refs_ctx).map(|(upstream, map_handler)| {
    quote_spanned! {span =>
    MapPipe::new(
      // Since the pipe has an initial value, we skip the initial notification.
      ModifiesPipe::new(#upstream.skip(1).box_it()),
      #map_handler
    )}
  });
  result_to_token_stream(res)
}