trussed/serde-indexed
0
0
Fork 0
mirror of https://github.com/trussed-dev/serde-indexed.git synced 2026-06-20 04:16:32 -07:00
Code Issues Packages Projects Releases Wiki Activity

Allow skipping incrementing when using skip

Browse Source
This commit is contained in:
Sosthène Guédon
2025-06-02 10:58:20 +02:00
parent 6c2e0be1f9
commit cfe2dafe5e
2 changed files with 20 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/parse.rs
+17 -5
View File
@@ -107,10 +107,13 @@ fn fields_from_ast(
fields: &syn::punctuated::Punctuated<syn::Field, Token![,]>,
) -> Result<Vec<Field>> {
// serde::internals::ast.rs:L183
let mut index = 0;
fields
.iter()
.enumerate()
.map(|(index, field)| {
.map(|field| {
let current_index = index;
index += 1;
let mut skip_serializing_if = Skip::None;
for attr in &field.attrs {
if attr.path().is_ident("serde") {
@@ -125,9 +128,18 @@ fn fields_from_ast(
skip_serializing_if = Skip::If(syn::parse2(tokens)?);
Ok(())
} else if meta.path.is_ident("skip") {
if meta.value().is_ok() {
return Err(meta.error("`skip` does not expect any value"));
if meta.input.peek(syn::token::Paren) {
meta.parse_nested_meta(|skip_meta| {
if !skip_meta.path.is_ident("no_increment") {
Err(skip_meta
.error("`skip` only accepts `no_increment` as value"))
} else {
index -= 1;
Ok(())
}
})?;
}
if !skip_serializing_if.is_none() {
return Err(meta
.error("Multiple attributes for skip_serializing_if or skip"));
@@ -155,7 +167,7 @@ fn fields_from_ast(
return Err(Error::new_spanned(fields, "Tuple struct are not supported"));
}
},
index,
index: current_index,
// TODO: make this... more concise? handle errors? the thing with the spans?
skip_serializing_if,
})