Move #[css(iterable)] on fields rather than variants

This commit is contained in:
Anthony Ramine 2018-03-06 10:03:15 +01:00
parent f5393cef8d
commit 85950a801f
10 changed files with 44 additions and 51 deletions

View file

@ -547,9 +547,8 @@ impl Parse for Fallback {
/// <https://drafts.csswg.org/css-counter-styles/#descdef-counter-style-symbols>
#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
#[css(iterable)]
#[derive(Clone, Debug, Eq, PartialEq, ToComputedValue, ToCss)]
pub struct Symbols(pub Vec<Symbol>);
pub struct Symbols(#[css(iterable)] pub Vec<Symbol>);
impl Parse for Symbols {
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};
/// A type that encapsulates a media query list.
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
#[css(comma, iterable)]
#[css(comma)]
#[derive(Clone, Debug, ToCss)]
pub struct MediaList {
/// The list of media queries.
#[css(iterable)]
pub media_queries: Vec<MediaQuery>,
}

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@ -126,9 +126,7 @@
% endif
% if not allow_empty:
% if separator == "Comma":
#[css(comma, iterable)]
% else:
#[css(iterable)]
#[css(comma)]
% endif
#[derive(ToCss)]
% endif
@ -136,6 +134,9 @@
% if allow_empty and allow_empty != "NotInitial":
pub Vec<single_value::T>,
% else:
% if not allow_empty:
#[css(iterable)]
% endif
pub SmallVec<[single_value::T; 1]>,
% endif
);
@ -189,13 +190,16 @@
#[derive(Clone, Debug, MallocSizeOf, PartialEq)]
% if not allow_empty:
% if separator == "Comma":
#[css(comma, iterable)]
% else:
#[css(iterable)]
#[css(comma)]
% endif
#[derive(ToCss)]
% endif
pub struct SpecifiedValue(pub Vec<single_value::SpecifiedValue>);
pub struct SpecifiedValue(
% if not allow_empty:
#[css(iterable)]
% endif
pub Vec<single_value::SpecifiedValue>,
);
% if allow_empty:
impl ToCss for SpecifiedValue {

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@ -176,9 +176,9 @@ impl UrlMatchingFunction {
/// The `@document` rule's condition is written as a comma-separated list of
/// URL matching functions, and the condition evaluates to true whenever any
/// one of those functions evaluates to true.
#[css(comma, iterable)]
#[css(comma)]
#[derive(Clone, Debug, ToCss)]
pub struct DocumentCondition(Vec<UrlMatchingFunction>);
pub struct DocumentCondition(#[css(iterable)] Vec<UrlMatchingFunction>);
impl DocumentCondition {
/// Parse a document condition.

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@ -118,9 +118,8 @@ impl ToGeckoFontFeatureValues for PairValues {
}
/// A @font-feature-values block declaration value that keeps a list of values.
#[css(iterable)]
#[derive(Clone, Debug, PartialEq, ToCss)]
pub struct VectorValues(pub Vec<u32>);
pub struct VectorValues(#[css(iterable)] pub Vec<u32>);
impl Parse for VectorValues {
fn parse<'i, 't>(_context: &ParserContext, input: &mut Parser<'i, 't>)

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@ -145,9 +145,9 @@ impl KeyframePercentage {
/// A keyframes selector is a list of percentages or from/to symbols, which are
/// converted at parse time to percentages.
#[css(comma, iterable)]
#[css(comma)]
#[derive(Clone, Debug, Eq, PartialEq, ToCss)]
pub struct KeyframeSelector(Vec<KeyframePercentage>);
pub struct KeyframeSelector(#[css(iterable)] Vec<KeyframePercentage>);
impl KeyframeSelector {
/// Return the list of percentages this selector contains.

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@ -369,9 +369,9 @@ pub enum OverflowClipBox {
pub enum WillChange {
/// Expresses no particular intent
Auto,
#[css(comma, iterable)]
/// <custom-ident>
AnimateableFeatures(Box<[CustomIdent]>),
#[css(comma)]
AnimateableFeatures(#[css(iterable)] Box<[CustomIdent]>),
}
impl WillChange {

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@ -92,8 +92,7 @@ pub enum Content {
#[cfg(feature = "gecko")]
MozAltContent,
/// Content items.
#[css(iterable)]
Items(Box<[ContentItem]>),
Items(#[css(iterable)] Box<[ContentItem]>),
}
/// Items for the `content` property.

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@ -152,8 +152,8 @@ impl From<LengthOrPercentage> for FontSize {
#[derive(Clone, Debug, Eq, Hash, PartialEq, ToCss)]
pub enum FontFamily {
/// List of `font-family`
#[css(iterable, comma)]
Values(FontFamilyList),
#[css(comma)]
Values(#[css(iterable)] FontFamilyList),
/// System font
System(SystemFont),
}
@ -718,11 +718,11 @@ pub enum VariantAlternates {
#[css(function)]
Stylistic(CustomIdent),
/// Enables display with stylistic sets
#[css(comma, function, iterable)]
Styleset(Box<[CustomIdent]>),
#[css(comma, function)]
Styleset(#[css(iterable)] Box<[CustomIdent]>),
/// Enables display of specific character variants
#[css(comma, function, iterable)]
CharacterVariant(Box<[CustomIdent]>),
#[css(comma, function)]
CharacterVariant(#[css(iterable)] Box<[CustomIdent]>),
/// Enables display of swash glyphs
#[css(function)]
Swash(CustomIdent),

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@ -4,7 +4,7 @@
use cg::{self, WhereClause};
use darling::util::Override;
use quote::Tokens;
use quote::{ToTokens, Tokens};
use syn::{self, Data};
use synstructure::{Structure, VariantInfo};
@ -18,7 +18,6 @@ pub fn derive(input: syn::DeriveInput) -> Tokens {
if let Data::Enum(_) = input.data {
assert!(input_attrs.function.is_none(), "#[css(function)] is not allowed on enums");
assert!(!input_attrs.comma, "#[css(comma)] is not allowed on enums");
assert!(!input_attrs.iterable, "#[css(iterable)] is not allowed on enums");
}
let s = Structure::new(&input);
@ -86,30 +85,24 @@ fn derive_variant_arm(
}
} else if !bindings.is_empty() {
let mut expr = quote! {};
if variant_attrs.iterable {
assert_eq!(bindings.len(), 1);
let binding = &bindings[0];
expr = quote! {
#expr
for item in #binding.iter() {
writer.item(&item)?;
}
};
} else {
for binding in bindings {
let attrs = cg::parse_field_attrs::<CssFieldAttrs>(&binding.ast());
if attrs.skip {
continue;
for binding in bindings {
let attrs = cg::parse_field_attrs::<CssFieldAttrs>(&binding.ast());
if attrs.skip {
continue;
}
let variant_expr = if attrs.iterable {
quote! {
for item in #binding.iter() {
writer.item(&item)?;
}
}
} else {
if !attrs.ignore_bound {
where_clause.add_trait_bound(&binding.ast().ty);
}
expr = quote! {
#expr
writer.item(#binding)?;
};
}
quote!{ writer.item(#binding)?; }
};
variant_expr.to_tokens(&mut expr)
}
quote! {{
@ -148,15 +141,12 @@ struct CssInputAttrs {
function: Option<Override<String>>,
// Here because structs variants are also their whole type definition.
comma: bool,
// Here because structs variants are also their whole type definition.
iterable: bool,
}
#[darling(attributes(css), default)]
#[derive(Default, FromVariant)]
pub struct CssVariantAttrs {
pub function: Option<Override<String>>,
pub iterable: bool,
pub comma: bool,
pub dimension: bool,
pub keyword: Option<String>,
@ -167,5 +157,6 @@ pub struct CssVariantAttrs {
#[derive(Default, FromField)]
struct CssFieldAttrs {
ignore_bound: bool,
iterable: bool,
skip: bool,
}