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Move #[css(iterable)] on fields rather than variants
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commit
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10 changed files with 44 additions and 51 deletions
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@ -547,9 +547,8 @@ impl Parse for Fallback {
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/// <https://drafts.csswg.org/css-counter-styles/#descdef-counter-style-symbols>
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#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
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#[css(iterable)]
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#[derive(Clone, Debug, Eq, PartialEq, ToComputedValue, ToCss)]
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pub struct Symbols(pub Vec<Symbol>);
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pub struct Symbols(#[css(iterable)] pub Vec<Symbol>);
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impl Parse for Symbols {
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fn parse<'i, 't>(context: &ParserContext, input: &mut Parser<'i, 't>) -> Result<Self, ParseError<'i>> {
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@ -25,10 +25,11 @@ pub use gecko::media_queries::{Device, Expression};
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/// A type that encapsulates a media query list.
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#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
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#[css(comma, iterable)]
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#[css(comma)]
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#[derive(Clone, Debug, ToCss)]
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pub struct MediaList {
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/// The list of media queries.
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#[css(iterable)]
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pub media_queries: Vec<MediaQuery>,
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}
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@ -126,9 +126,7 @@
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% endif
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% if not allow_empty:
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% if separator == "Comma":
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#[css(comma, iterable)]
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% else:
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#[css(iterable)]
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#[css(comma)]
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% endif
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#[derive(ToCss)]
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% endif
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@ -136,6 +134,9 @@
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% if allow_empty and allow_empty != "NotInitial":
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pub Vec<single_value::T>,
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% else:
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% if not allow_empty:
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#[css(iterable)]
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% endif
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pub SmallVec<[single_value::T; 1]>,
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% endif
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);
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@ -189,13 +190,16 @@
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#[derive(Clone, Debug, MallocSizeOf, PartialEq)]
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% if not allow_empty:
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% if separator == "Comma":
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#[css(comma, iterable)]
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% else:
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#[css(iterable)]
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#[css(comma)]
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% endif
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#[derive(ToCss)]
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% endif
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pub struct SpecifiedValue(pub Vec<single_value::SpecifiedValue>);
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pub struct SpecifiedValue(
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% if not allow_empty:
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#[css(iterable)]
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% endif
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pub Vec<single_value::SpecifiedValue>,
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);
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% if allow_empty:
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impl ToCss for SpecifiedValue {
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@ -176,9 +176,9 @@ impl UrlMatchingFunction {
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/// The `@document` rule's condition is written as a comma-separated list of
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/// URL matching functions, and the condition evaluates to true whenever any
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/// one of those functions evaluates to true.
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#[css(comma, iterable)]
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#[css(comma)]
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#[derive(Clone, Debug, ToCss)]
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pub struct DocumentCondition(Vec<UrlMatchingFunction>);
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pub struct DocumentCondition(#[css(iterable)] Vec<UrlMatchingFunction>);
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impl DocumentCondition {
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/// Parse a document condition.
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@ -118,9 +118,8 @@ impl ToGeckoFontFeatureValues for PairValues {
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}
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/// A @font-feature-values block declaration value that keeps a list of values.
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#[css(iterable)]
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#[derive(Clone, Debug, PartialEq, ToCss)]
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pub struct VectorValues(pub Vec<u32>);
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pub struct VectorValues(#[css(iterable)] pub Vec<u32>);
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impl Parse for VectorValues {
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fn parse<'i, 't>(_context: &ParserContext, input: &mut Parser<'i, 't>)
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@ -145,9 +145,9 @@ impl KeyframePercentage {
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/// A keyframes selector is a list of percentages or from/to symbols, which are
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/// converted at parse time to percentages.
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#[css(comma, iterable)]
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#[css(comma)]
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#[derive(Clone, Debug, Eq, PartialEq, ToCss)]
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pub struct KeyframeSelector(Vec<KeyframePercentage>);
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pub struct KeyframeSelector(#[css(iterable)] Vec<KeyframePercentage>);
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impl KeyframeSelector {
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/// Return the list of percentages this selector contains.
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@ -369,9 +369,9 @@ pub enum OverflowClipBox {
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pub enum WillChange {
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/// Expresses no particular intent
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Auto,
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#[css(comma, iterable)]
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/// <custom-ident>
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AnimateableFeatures(Box<[CustomIdent]>),
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#[css(comma)]
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AnimateableFeatures(#[css(iterable)] Box<[CustomIdent]>),
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}
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impl WillChange {
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@ -92,8 +92,7 @@ pub enum Content {
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#[cfg(feature = "gecko")]
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MozAltContent,
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/// Content items.
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#[css(iterable)]
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Items(Box<[ContentItem]>),
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Items(#[css(iterable)] Box<[ContentItem]>),
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}
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/// Items for the `content` property.
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@ -152,8 +152,8 @@ impl From<LengthOrPercentage> for FontSize {
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#[derive(Clone, Debug, Eq, Hash, PartialEq, ToCss)]
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pub enum FontFamily {
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/// List of `font-family`
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#[css(iterable, comma)]
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Values(FontFamilyList),
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#[css(comma)]
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Values(#[css(iterable)] FontFamilyList),
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/// System font
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System(SystemFont),
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}
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@ -718,11 +718,11 @@ pub enum VariantAlternates {
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#[css(function)]
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Stylistic(CustomIdent),
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/// Enables display with stylistic sets
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#[css(comma, function, iterable)]
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Styleset(Box<[CustomIdent]>),
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#[css(comma, function)]
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Styleset(#[css(iterable)] Box<[CustomIdent]>),
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/// Enables display of specific character variants
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#[css(comma, function, iterable)]
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CharacterVariant(Box<[CustomIdent]>),
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#[css(comma, function)]
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CharacterVariant(#[css(iterable)] Box<[CustomIdent]>),
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/// Enables display of swash glyphs
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#[css(function)]
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Swash(CustomIdent),
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@ -4,7 +4,7 @@
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use cg::{self, WhereClause};
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use darling::util::Override;
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use quote::Tokens;
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use quote::{ToTokens, Tokens};
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use syn::{self, Data};
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use synstructure::{Structure, VariantInfo};
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@ -18,7 +18,6 @@ pub fn derive(input: syn::DeriveInput) -> Tokens {
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if let Data::Enum(_) = input.data {
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assert!(input_attrs.function.is_none(), "#[css(function)] is not allowed on enums");
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assert!(!input_attrs.comma, "#[css(comma)] is not allowed on enums");
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assert!(!input_attrs.iterable, "#[css(iterable)] is not allowed on enums");
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}
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let s = Structure::new(&input);
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@ -86,30 +85,24 @@ fn derive_variant_arm(
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}
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} else if !bindings.is_empty() {
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let mut expr = quote! {};
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if variant_attrs.iterable {
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assert_eq!(bindings.len(), 1);
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let binding = &bindings[0];
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expr = quote! {
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#expr
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for item in #binding.iter() {
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writer.item(&item)?;
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}
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};
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} else {
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for binding in bindings {
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let attrs = cg::parse_field_attrs::<CssFieldAttrs>(&binding.ast());
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if attrs.skip {
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continue;
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for binding in bindings {
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let attrs = cg::parse_field_attrs::<CssFieldAttrs>(&binding.ast());
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if attrs.skip {
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continue;
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}
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let variant_expr = if attrs.iterable {
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quote! {
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for item in #binding.iter() {
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writer.item(&item)?;
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}
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}
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} else {
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if !attrs.ignore_bound {
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where_clause.add_trait_bound(&binding.ast().ty);
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}
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expr = quote! {
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#expr
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writer.item(#binding)?;
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};
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}
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quote!{ writer.item(#binding)?; }
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};
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variant_expr.to_tokens(&mut expr)
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}
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quote! {{
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@ -148,15 +141,12 @@ struct CssInputAttrs {
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function: Option<Override<String>>,
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// Here because structs variants are also their whole type definition.
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comma: bool,
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// Here because structs variants are also their whole type definition.
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iterable: bool,
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}
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#[darling(attributes(css), default)]
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#[derive(Default, FromVariant)]
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pub struct CssVariantAttrs {
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pub function: Option<Override<String>>,
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pub iterable: bool,
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pub comma: bool,
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pub dimension: bool,
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pub keyword: Option<String>,
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@ -167,5 +157,6 @@ pub struct CssVariantAttrs {
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#[derive(Default, FromField)]
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struct CssFieldAttrs {
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ignore_bound: bool,
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iterable: bool,
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skip: bool,
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}
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