itsscb/serde
1
0
Fork 0
mirror of https://github.com/serde-rs/serde.git synced 2025-10-02 07:21:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

Simplify finding of repr(packed) attributes

Browse Source
This commit is contained in:
David Tolnay 2020-05-09 23:01:47 -07:00
parent 548eb8f667
commit da8d6f678e
No known key found for this signature in database
GPG Key ID: F9BA143B95FF6D82
1 changed files with 8 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
serde_derive/src/internals/attr.rs
View File

@ -593,25 +593,15 @@ impl Container {
} }
} }
use proc_macro2::Delimiter; let mut is_packed = false;
let is_packed = item.attrs.iter().any(|attr| match attr.style { for attr in &item.attrs {
syn::AttrStyle::Outer => { if attr.path.is_ident("repr") {
attr.path let _ = attr.parse_args_with(|input: ParseStream| {
.get_ident() is_packed |= input.parse::<Ident>()? == "packed";
.map_or(false, |ident| *ident == "repr") Ok(())
&& syn::parse2::<Group>(attr.tokens.clone())
.ok()
.filter(|g| g.delimiter() == Delimiter::Parenthesis)
.map(|g| g.stream().to_string())
.map_or(false, |repr| {
let repr = repr.trim();
repr == "packed"
|| repr.starts_with("packed(")
|| repr.starts_with("packed ")
})
}
_ => false,
}); });
}
}
Container { Container {
name: Name::from_attrs(unraw(&item.ident), ser_name, de_name, None), name: Name::from_attrs(unraw(&item.ident), ser_name, de_name, None),