diff options
Diffstat (limited to 'vendor/serde_derive/src/ser.rs')
| -rw-r--r-- | vendor/serde_derive/src/ser.rs | 62 |
1 files changed, 32 insertions, 30 deletions
diff --git a/vendor/serde_derive/src/ser.rs b/vendor/serde_derive/src/ser.rs index 529a20d79..43695dd0c 100644 --- a/vendor/serde_derive/src/ser.rs +++ b/vendor/serde_derive/src/ser.rs @@ -8,6 +8,7 @@ use fragment::{Fragment, Match, Stmts}; use internals::ast::{Container, Data, Field, Style, Variant}; use internals::{attr, replace_receiver, Ctxt, Derive}; use pretend; +use this; pub fn expand_derive_serialize( input: &mut syn::DeriveInput, @@ -82,9 +83,13 @@ struct Parameters { self_var: Ident, /// Path to the type the impl is for. Either a single `Ident` for local - /// types or `some::remote::Ident` for remote types. Does not include - /// generic parameters. - this: syn::Path, + /// types (does not include generic parameters) or `some::remote::Path` for + /// remote types. + this_type: syn::Path, + + /// Same as `this_type` but using `::<T>` for generic parameters for use in + /// expression position. + this_value: syn::Path, /// Generics including any explicit and inferred bounds for the impl. generics: syn::Generics, @@ -105,18 +110,15 @@ impl Parameters { Ident::new("self", Span::call_site()) }; - let this = match cont.attrs.remote() { - Some(remote) => remote.clone(), - None => cont.ident.clone().into(), - }; - + let this_type = this::this_type(cont); + let this_value = this::this_value(cont); let is_packed = cont.attrs.is_packed(); - let generics = build_generics(cont); Parameters { self_var, - this, + this_type, + this_value, generics, is_remote, is_packed, @@ -126,7 +128,7 @@ impl Parameters { /// Type name to use in error messages and `&'static str` arguments to /// various Serializer methods. fn type_name(&self) -> String { - self.this.segments.last().unwrap().ident.to_string() + self.this_type.segments.last().unwrap().ident.to_string() } } @@ -427,7 +429,7 @@ fn serialize_variant( variant_index: u32, cattrs: &attr::Container, ) -> TokenStream { - let this = ¶ms.this; + let this_value = ¶ms.this_value; let variant_ident = &variant.ident; if variant.attrs.skip_serializing() { @@ -445,32 +447,32 @@ fn serialize_variant( Style::Struct => quote!({ .. }), }; quote! { - #this::#variant_ident #fields_pat => #skipped_err, + #this_value::#variant_ident #fields_pat => #skipped_err, } } else { // variant wasn't skipped let case = match variant.style { Style::Unit => { quote! { - #this::#variant_ident + #this_value::#variant_ident } } Style::Newtype => { quote! { - #this::#variant_ident(ref __field0) + #this_value::#variant_ident(ref __field0) } } Style::Tuple => { let field_names = (0..variant.fields.len()) .map(|i| Ident::new(&format!("__field{}", i), Span::call_site())); quote! { - #this::#variant_ident(#(ref #field_names),*) + #this_value::#variant_ident(#(ref #field_names),*) } } Style::Struct => { let members = variant.fields.iter().map(|f| &f.member); quote! { - #this::#variant_ident { #(ref #members),* } + #this_value::#variant_ident { #(ref #members),* } } } }; @@ -640,7 +642,7 @@ fn serialize_adjacently_tagged_variant( tag: &str, content: &str, ) -> Fragment { - let this = ¶ms.this; + let this_type = ¶ms.this_type; let type_name = cattrs.name().serialize_name(); let variant_name = variant.attrs.name().serialize_name(); @@ -719,7 +721,7 @@ fn serialize_adjacently_tagged_variant( quote_block! { struct __AdjacentlyTagged #wrapper_generics #where_clause { data: (#(&'__a #fields_ty,)*), - phantom: _serde::__private::PhantomData<#this #ty_generics>, + phantom: _serde::__private::PhantomData<#this_type #ty_generics>, } impl #wrapper_impl_generics _serde::Serialize for __AdjacentlyTagged #wrapper_ty_generics #where_clause { @@ -741,7 +743,7 @@ fn serialize_adjacently_tagged_variant( try!(_serde::ser::SerializeStruct::serialize_field( &mut __struct, #content, &__AdjacentlyTagged { data: (#(#fields_ident,)*), - phantom: _serde::__private::PhantomData::<#this #ty_generics>, + phantom: _serde::__private::PhantomData::<#this_type #ty_generics>, })); _serde::ser::SerializeStruct::end(__struct) } @@ -866,8 +868,8 @@ enum StructVariant<'a> { Untagged, } -fn serialize_struct_variant<'a>( - context: StructVariant<'a>, +fn serialize_struct_variant( + context: StructVariant, params: &Parameters, fields: &[Field], name: &str, @@ -950,8 +952,8 @@ fn serialize_struct_variant<'a>( } } -fn serialize_struct_variant_with_flatten<'a>( - context: StructVariant<'a>, +fn serialize_struct_variant_with_flatten( + context: StructVariant, params: &Parameters, fields: &[Field], name: &str, @@ -971,7 +973,7 @@ fn serialize_struct_variant_with_flatten<'a>( variant_index, variant_name, } => { - let this = ¶ms.this; + let this_type = ¶ms.this_type; let fields_ty = fields.iter().map(|f| &f.ty); let members = &fields.iter().map(|f| &f.member).collect::<Vec<_>>(); @@ -982,7 +984,7 @@ fn serialize_struct_variant_with_flatten<'a>( quote_block! { struct __EnumFlatten #wrapper_generics #where_clause { data: (#(&'__a #fields_ty,)*), - phantom: _serde::__private::PhantomData<#this #ty_generics>, + phantom: _serde::__private::PhantomData<#this_type #ty_generics>, } impl #wrapper_impl_generics _serde::Serialize for __EnumFlatten #wrapper_ty_generics #where_clause { @@ -1006,7 +1008,7 @@ fn serialize_struct_variant_with_flatten<'a>( #variant_name, &__EnumFlatten { data: (#(#members,)*), - phantom: _serde::__private::PhantomData::<#this #ty_generics>, + phantom: _serde::__private::PhantomData::<#this_type #ty_generics>, }) } } @@ -1192,7 +1194,7 @@ fn wrap_serialize_with( field_tys: &[&syn::Type], field_exprs: &[TokenStream], ) -> TokenStream { - let this = ¶ms.this; + let this_type = ¶ms.this_type; let (_, ty_generics, where_clause) = params.generics.split_for_impl(); let wrapper_generics = if field_exprs.is_empty() { @@ -1212,7 +1214,7 @@ fn wrap_serialize_with( quote!({ struct __SerializeWith #wrapper_impl_generics #where_clause { values: (#(&'__a #field_tys, )*), - phantom: _serde::__private::PhantomData<#this #ty_generics>, + phantom: _serde::__private::PhantomData<#this_type #ty_generics>, } impl #wrapper_impl_generics _serde::Serialize for __SerializeWith #wrapper_ty_generics #where_clause { @@ -1226,7 +1228,7 @@ fn wrap_serialize_with( &__SerializeWith { values: (#(#field_exprs, )*), - phantom: _serde::__private::PhantomData::<#this #ty_generics>, + phantom: _serde::__private::PhantomData::<#this_type #ty_generics>, } }) } |