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Filter the slice of expected field and variant names

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This commit is contained in:
David Tolnay
2017-01-21 12:18:55 -08:00
parent d1325862f7
commit ea99e8b686
2 changed files with 18 additions and 15 deletions
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serde_codegen/src/de.rs
+16 -13
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@@ -489,24 +489,25 @@ fn deserialize_item_enum(
let type_name = item_attrs.name().deserialize_name();
let variant_names_idents = variants.iter()
let variant_names_idents: Vec<_> = variants.iter()
.enumerate()
.filter(|&(_, variant)| !variant.attrs.skip_deserializing())
.map(|(i, variant)| (variant.attrs.name().deserialize_name(), field_i(i)))
.collect();
let variants_stmt = {
let variant_names = variant_names_idents.iter().map(|&(ref name, _)| name);
quote! {
const VARIANTS: &'static [&'static str] = &[ #(#variant_names),* ];
}
};
let variant_visitor = deserialize_field_visitor(
variant_names_idents,
item_attrs,
true,
);
let variant_names = variants.iter().map(|variant| variant.attrs.name().deserialize_name());
let variants_stmt = quote! {
const VARIANTS: &'static [&'static str] = &[ #(#variant_names),* ];
};
// Match arms to extract a variant from a string
let variant_arms = variants.iter()
.enumerate()
@@ -713,12 +714,19 @@ fn deserialize_struct_visitor(
fields: &[Field],
item_attrs: &attr::Item,
) -> (Tokens, Tokens, Tokens) {
let field_names_idents = fields.iter()
let field_names_idents: Vec<_> = fields.iter()
.enumerate()
.filter(|&(_, field)| !field.attrs.skip_deserializing())
.map(|(i, field)| (field.attrs.name().deserialize_name(), field_i(i)))
.collect();
let fields_stmt = {
let field_names = field_names_idents.iter().map(|&(ref name, _)| name);
quote! {
const FIELDS: &'static [&'static str] = &[ #(#field_names),* ];
}
};
let field_visitor = deserialize_field_visitor(
field_names_idents,
item_attrs,
@@ -733,11 +741,6 @@ fn deserialize_struct_visitor(
item_attrs,
);
let field_names = fields.iter().map(|field| field.attrs.name().deserialize_name());
let fields_stmt = quote! {
const FIELDS: &'static [&'static str] = &[ #(#field_names),* ];
};
(field_visitor, fields_stmt, visit_map)
}