mirror of https://github.com/rwf2/Rocket.git
74 lines
2.4 KiB
Rust
74 lines
2.4 KiB
Rust
use devise::Result;
|
|
|
|
use crate::syn::{Path, punctuated::Punctuated, parse::Parser, Token};
|
|
use crate::proc_macro2::TokenStream;
|
|
use crate::syn::spanned::Spanned;
|
|
|
|
mod uri;
|
|
mod uri_parsing;
|
|
mod test_guide;
|
|
mod export;
|
|
|
|
fn struct_maker_vec(
|
|
input: proc_macro::TokenStream,
|
|
ty: TokenStream,
|
|
map: impl Fn(TokenStream) -> TokenStream,
|
|
) -> Result<TokenStream> {
|
|
use crate::exports::_Vec;
|
|
|
|
// Parse a comma-separated list of paths.
|
|
let paths = <Punctuated<Path, Token![,]>>::parse_terminated.parse(input)?;
|
|
let exprs = paths.iter().map(|path| {
|
|
let expr = map(quote_spanned!(path.span() => ___struct));
|
|
quote_spanned!(path.span() => {
|
|
let ___struct = #path {};
|
|
let ___item: #ty = #expr;
|
|
___item
|
|
})
|
|
});
|
|
|
|
Ok(quote!({
|
|
let ___vec: #_Vec<#ty> = vec![#(#exprs),*];
|
|
___vec
|
|
}))
|
|
}
|
|
|
|
pub fn routes_macro(input: proc_macro::TokenStream) -> TokenStream {
|
|
struct_maker_vec(input, quote!(::rocket::Route), |e| quote!(#e.into_route()))
|
|
.unwrap_or_else(|diag| diag.emit_as_expr_tokens())
|
|
}
|
|
|
|
pub fn catchers_macro(input: proc_macro::TokenStream) -> TokenStream {
|
|
struct_maker_vec(input, quote!(::rocket::Catcher), |e| quote!(#e.into_catcher()))
|
|
.unwrap_or_else(|diag| diag.emit_as_expr_tokens())
|
|
}
|
|
|
|
pub fn uri_macro(input: proc_macro::TokenStream) -> TokenStream {
|
|
uri::_uri_macro(input.into())
|
|
.unwrap_or_else(|diag| diag.emit_as_expr_tokens_or(quote! {
|
|
rocket::http::uri::Origin::ROOT
|
|
}))
|
|
}
|
|
|
|
pub fn uri_internal_macro(input: proc_macro::TokenStream) -> TokenStream {
|
|
// TODO: Ideally we would generate a perfect `Origin::ROOT` so that we don't
|
|
// assist in propoagate further errors. Alas, we can't set the span to the
|
|
// invocation of `uri!` without access to `span.parent()`, and
|
|
// `Span::call_site()` here points to the `#[route]`, immediate caller,
|
|
// generating a rather confusing error message when there's a type-mismatch.
|
|
uri::_uri_internal_macro(input.into())
|
|
.unwrap_or_else(|diag| diag.emit_as_expr_tokens_or(quote! {
|
|
rocket::http::uri::Origin::ROOT
|
|
}))
|
|
}
|
|
|
|
pub fn guide_tests_internal(input: proc_macro::TokenStream) -> TokenStream {
|
|
test_guide::_macro(input)
|
|
.unwrap_or_else(|diag| diag.emit_as_item_tokens())
|
|
}
|
|
|
|
pub fn export_internal(input: proc_macro::TokenStream) -> TokenStream {
|
|
export::_macro(input)
|
|
.unwrap_or_else(|diag| diag.emit_as_item_tokens())
|
|
}
|