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Deduplicate rt::main macro logic (#2255)

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Ibraheem Ahmed 2021-06-08 17:44:56 -04:00 committed by GitHub
parent 2e1d761854
commit e46cda5228
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 4 additions and 21 deletions
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2
Cargo.toml
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@ -58,7 +58,7 @@ rustls = ["actix-http/rustls", "actix-tls/accept", "actix-tls/rustls"]
[dependencies]
actix-codec = "0.4.0"
actix-macros = "0.2.0"
actix-macros = "0.2.1"
actix-router = "0.2.7"
actix-rt = "2.2"
actix-server = "2.0.0-beta.3"

23
actix-web-codegen/src/lib.rs
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@ -171,27 +171,10 @@ method_macro! {
#[proc_macro_attribute]
pub fn main(_: TokenStream, item: TokenStream) -> TokenStream {
use quote::quote;
let mut input = syn::parse_macro_input!(item as syn::ItemFn);
let attrs = &input.attrs;
let vis = &input.vis;
let sig = &mut input.sig;
let body = &input.block;
if sig.asyncness.is_none() {
return syn::Error::new_spanned(sig.fn_token, "only async fn is supported")
.to_compile_error()
.into();
}
sig.asyncness = None;
let input = syn::parse_macro_input!(item as syn::ItemFn);
(quote! {
#(#attrs)*
#vis #sig {
actix_web::rt::System::new()
.block_on(async move { #body })
}
#[actix_web::rt::main(system = "::actix_web::rt::System")]
#input
})
.into()
}