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Use call_site as the span of unnamed member access

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This commit is contained in:
David Tolnay
2018-01-09 20:28:23 -08:00
parent 16bc9fb99e
commit b313f947dc
3 changed files with 23 additions and 7 deletions
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serde_derive/src/de.rs
+9 -3
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@@ -6,7 +6,7 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use syn::{self, Ident, Member};
use syn::{self, Ident, Index, Member};
use syn::punctuated::Punctuated;
use quote::{ToTokens, Tokens};
use proc_macro2::{Literal, Span, Term};
@@ -624,7 +624,10 @@ fn deserialize_seq_in_place(
let field_name = field
.ident
.map(Member::Named)
.unwrap_or_else(|| Member::Unnamed(field_index.into()));
.unwrap_or_else(|| Member::Unnamed(Index {
index: field_index as u32,
span: Span::call_site(),
}));
if field.attrs.skip_deserializing() {
let default = Expr(expr_is_missing(field, cattrs));
@@ -2314,7 +2317,10 @@ fn wrap_deserialize_variant_with(
let (wrapper, wrapper_ty) =
wrap_deserialize_with(params, &quote!((#(#field_tys),*)), deserialize_with);
let field_access = (0..variant.fields.len()).map(|n| Member::Unnamed(n.into()));
let field_access = (0..variant.fields.len()).map(|n| Member::Unnamed(Index {
index: n as u32,
span: Span::call_site(),
}));
let unwrap_fn = match variant.style {
Style::Struct => {
let field_idents = variant