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Format component of style_derive

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This commit is contained in:
chansuke 2018-09-07 22:18:51 +09:00
parent 51283cf77a
commit 25bc998f17
8 changed files with 156 additions and 127 deletions
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37
components/style_derive/to_css.rs
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@ -19,15 +19,16 @@ pub fn derive(mut input: syn::DeriveInput) -> Tokens {
let input_attrs = cg::parse_input_attrs::<CssInputAttrs>(&input);
if let Data::Enum(_) = input.data {
assert!(input_attrs.function.is_none(), "#[css(function)] is not allowed on enums");
assert!(
input_attrs.function.is_none(),
"#[css(function)] is not allowed on enums"
);
assert!(!input_attrs.comma, "#[css(comma)] is not allowed on enums");
}
let match_body = {
let s = Structure::new(&input);
s.each_variant(|variant| {
derive_variant_arm(variant, &mut where_clause)
})
s.each_variant(|variant| derive_variant_arm(variant, &mut where_clause))
};
input.generics.where_clause = where_clause;
@ -68,10 +69,7 @@ pub fn derive(mut input: syn::DeriveInput) -> Tokens {
impls
}
fn derive_variant_arm(
variant: &VariantInfo,
generics: &mut Option<WhereClause>,
) -> Tokens {
fn derive_variant_arm(variant: &VariantInfo, generics: &mut Option<WhereClause>) -> Tokens {
let bindings = variant.bindings();
let identifier = cg::to_css_identifier(variant.ast().ident.as_ref());
let ast = variant.ast();
@ -124,13 +122,15 @@ fn derive_variant_fields_expr(
where_clause: &mut Option<WhereClause>,
separator: &str,
) -> Tokens {
let mut iter = bindings.iter().filter_map(|binding| {
let attrs = cg::parse_field_attrs::<CssFieldAttrs>(&binding.ast());
if attrs.skip {
return None;
}
Some((binding, attrs))
}).peekable();
let mut iter = bindings
.iter()
.filter_map(|binding| {
let attrs = cg::parse_field_attrs::<CssFieldAttrs>(&binding.ast());
if attrs.skip {
return None;
}
Some((binding, attrs))
}).peekable();
let (first, attrs) = match iter.next() {
Some(pair) => pair,
@ -190,8 +190,11 @@ fn derive_single_field_expr(
}
}
} else if attrs.represents_keyword {
let ident =
field.ast().ident.as_ref().expect("Unnamed field with represents_keyword?");
let ident = field
.ast()
.ident
.as_ref()
.expect("Unnamed field with represents_keyword?");
let ident = cg::to_css_identifier(ident.as_ref());
quote! {
if *#field {