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Update syn and related dependencies

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This commit is contained in:
Bastien Orivel 2018-11-30 12:28:20 +01:00
parent e4c80d0a88
commit e94de4e1bd
22 changed files with 215 additions and 226 deletions
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14
components/domobject_derive/lib.rs
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@ -10,13 +10,16 @@ extern crate quote;
#[macro_use]
extern crate syn;
use proc_macro2;
use quote::TokenStreamExt;
#[proc_macro_derive(DomObject)]
pub fn expand_token_stream(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let input = syn::parse(input).unwrap();
expand_dom_object(input).into()
}
fn expand_dom_object(input: syn::DeriveInput) -> quote::Tokens {
fn expand_dom_object(input: syn::DeriveInput) -> proc_macro2::TokenStream {
let fields = if let syn::Data::Struct(syn::DataStruct { ref fields, .. }) = input.data {
fields.iter().collect::<Vec<&syn::Field>>()
} else {
@ -62,8 +65,8 @@ fn expand_dom_object(input: syn::DeriveInput) -> quote::Tokens {
}
};
let mut params = quote::Tokens::new();
params.append_separated(input.generics.type_params().map(|param| param.ident), ", ");
let mut params = proc_macro2::TokenStream::new();
params.append_separated(input.generics.type_params().map(|param| &param.ident), ", ");
// For each field in the struct, we implement ShouldNotImplDomObject for a
// pair of all the type parameters of the DomObject and and the field type.
@ -87,7 +90,10 @@ fn expand_dom_object(input: syn::DeriveInput) -> quote::Tokens {
impl #impl_generics ShouldNotImplDomObject for ((#params), __T) #where_clause {}
});
let dummy_const = syn::Ident::from(format!("_IMPL_DOMOBJECT_FOR_{}", name));
let dummy_const = syn::Ident::new(
&format!("_IMPL_DOMOBJECT_FOR_{}", name),
proc_macro2::Span::call_site(),
);
let tokens = quote! {
#[allow(non_upper_case_globals)]
const #dummy_const: () = { #items };