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Box DeclaredValue::WithVariables
This commit is contained in:
Nazım Can Altınova
Simon Sapin
parent
43731c5757
commit
adb6d20293
6 changed files with 53 additions and 44 deletions
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@ -361,7 +361,7 @@ pub fn cascade<'a>(custom_properties: &mut Option<HashMap<&'a Name, BorrowedSpec
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references: Some(&specified_value.references),
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});
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},
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DeclaredValue::WithVariables { .. } => unreachable!(),
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DeclaredValue::WithVariables(_) => unreachable!(),
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DeclaredValue::Initial => {
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map.remove(&name);
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}
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@ -196,7 +196,7 @@
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% if not property.derived_from:
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use cssparser::Parser;
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use parser::{Parse, ParserContext, ParserContextExtraData};
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use properties::{CSSWideKeyword, DeclaredValue, ShorthandId};
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use properties::{CSSWideKeyword, DeclaredValue, UnparsedValue, ShorthandId};
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% endif
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use values::{Auto, Either, None_, Normal};
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use cascade_info::CascadeInfo;
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@ -259,7 +259,7 @@
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.set_${property.ident}(computed ${maybe_wm});
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% endif
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}
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DeclaredValue::WithVariables { .. } => unreachable!(),
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DeclaredValue::WithVariables(_) => unreachable!(),
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% if not data.current_style_struct.inherited:
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DeclaredValue::Unset |
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% endif
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@ -324,12 +324,12 @@
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input.reset(start);
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let (first_token_type, css) = try!(
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::custom_properties::parse_non_custom_with_var(input));
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return Ok(DeclaredValue::WithVariables {
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return Ok(DeclaredValue::WithVariables(Box::new(UnparsedValue {
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css: css.into_owned(),
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first_token_type: first_token_type,
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base_url: context.base_url.clone(),
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from_shorthand: None,
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})
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})))
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}
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specified
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}
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@ -421,7 +421,8 @@
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#[allow(unused_imports)]
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use cssparser::Parser;
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use parser::ParserContext;
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use properties::{longhands, PropertyDeclaration, DeclaredValue, ShorthandId};
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use properties::{DeclaredValue, PropertyDeclaration, UnparsedValue};
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use properties::{ShorthandId, longhands};
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use properties::declaration_block::Importance;
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use std::fmt;
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use style_traits::ToCss;
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@ -504,7 +505,7 @@
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DeclaredValue::Initial => all_flags &= ALL_INITIAL,
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DeclaredValue::Inherit => all_flags &= ALL_INHERIT,
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DeclaredValue::Unset => all_flags &= ALL_UNSET,
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DeclaredValue::WithVariables {..} => with_variables = true,
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DeclaredValue::WithVariables(_) => with_variables = true,
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DeclaredValue::Value(..) => {
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all_flags = SerializeFlags::empty();
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}
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@ -560,12 +561,12 @@
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::custom_properties::parse_non_custom_with_var(input));
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% for sub_property in shorthand.sub_properties:
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declarations.push((PropertyDeclaration::${sub_property.camel_case}(
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DeclaredValue::WithVariables {
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DeclaredValue::WithVariables(Box::new(UnparsedValue {
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css: css.clone().into_owned(),
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first_token_type: first_token_type,
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base_url: context.base_url.clone(),
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from_shorthand: Some(ShorthandId::${shorthand.camel_case}),
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}
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}))
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), Importance::Normal));
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% endfor
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Ok(())
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@ -297,7 +297,7 @@ impl AnimationValue {
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PropertyDeclaration::${prop.camel_case}(ref val) => {
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let computed = match *val {
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// https://bugzilla.mozilla.org/show_bug.cgi?id=1326131
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DeclaredValue::WithVariables{..} => unimplemented!(),
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DeclaredValue::WithVariables(_) => unimplemented!(),
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DeclaredValue::Value(ref val) => val.to_computed_value(context),
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% if not prop.style_struct.inherited:
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DeclaredValue::Unset |
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@ -260,17 +260,15 @@ mod property_bit_field {
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where F: FnOnce(&DeclaredValue<longhands::${property.ident}::SpecifiedValue>)
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% endif
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{
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if let DeclaredValue::WithVariables {
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ref css, first_token_type, ref base_url, from_shorthand
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} = *value {
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if let DeclaredValue::WithVariables(ref with_variables) = *value {
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// FIXME(heycam): A ParserContextExtraData should be built from data
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// stored in the WithVariables, in case variable expansion results in
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// a url() value.
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let extra_data = ParserContextExtraData::default();
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substitute_variables_${property.ident}_slow(css,
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first_token_type,
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base_url,
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from_shorthand,
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substitute_variables_${property.ident}_slow(&with_variables.css,
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with_variables.first_token_type,
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&with_variables.base_url,
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with_variables.from_shorthand,
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custom_properties,
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f,
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error_reporter,
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@ -614,17 +612,8 @@ impl ShorthandId {
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pub enum DeclaredValue<T> {
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/// A known specified value from the stylesheet.
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Value(T),
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/// A value that contained any css variables.
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WithVariables {
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/// The css serialization for this value.
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css: String,
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/// The first token type for this serialization.
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first_token_type: TokenSerializationType,
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/// The base url.
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base_url: ServoUrl,
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/// The shorthand this came from.
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from_shorthand: Option<ShorthandId>,
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},
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/// An unparsed value that contains `var()` functions.
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WithVariables(Box<UnparsedValue>),
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/// The `initial` keyword.
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Initial,
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/// The `inherit` keyword.
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@ -633,11 +622,25 @@ pub enum DeclaredValue<T> {
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Unset,
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}
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/// An unparsed property value that contains `var()` functions.
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#[derive(Clone, PartialEq, Eq, Debug)]
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#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
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pub struct UnparsedValue {
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/// The css serialization for this value.
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css: String,
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/// The first token type for this serialization.
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first_token_type: TokenSerializationType,
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/// The base url.
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base_url: ServoUrl,
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/// The shorthand this came from.
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from_shorthand: Option<ShorthandId>,
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}
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impl<T: HasViewportPercentage> HasViewportPercentage for DeclaredValue<T> {
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fn has_viewport_percentage(&self) -> bool {
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match *self {
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DeclaredValue::Value(ref v) => v.has_viewport_percentage(),
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DeclaredValue::WithVariables { .. } => {
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DeclaredValue::WithVariables(_) => {
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panic!("DeclaredValue::has_viewport_percentage without \
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resolving variables!")
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},
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@ -654,11 +657,13 @@ impl<T: ToCss> ToCss for DeclaredValue<T> {
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{
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match *self {
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DeclaredValue::Value(ref inner) => inner.to_css(dest),
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DeclaredValue::WithVariables { ref css, from_shorthand: None, .. } => {
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dest.write_str(css)
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}
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// https://drafts.csswg.org/css-variables/#variables-in-shorthands
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DeclaredValue::WithVariables { .. } => Ok(()),
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DeclaredValue::WithVariables(ref with_variables) => {
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// https://drafts.csswg.org/css-variables/#variables-in-shorthands
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if with_variables.from_shorthand.is_none() {
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dest.write_str(&*with_variables.css)?
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}
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Ok(())
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},
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DeclaredValue::Initial => dest.write_str("initial"),
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DeclaredValue::Inherit => dest.write_str("inherit"),
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DeclaredValue::Unset => dest.write_str("unset"),
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@ -959,9 +964,12 @@ impl PropertyDeclaration {
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match *self {
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% for property in data.longhands:
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PropertyDeclaration::${property.camel_case}(ref value) => match *value {
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DeclaredValue::WithVariables { ref css, from_shorthand: Some(s), .. }
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if s == shorthand => {
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Some(&**css)
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DeclaredValue::WithVariables(ref with_variables) => {
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if let Some(s) = with_variables.from_shorthand {
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if s == shorthand {
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Some(&*with_variables.css)
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} else { None }
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} else { None }
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}
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_ => None
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},
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@ -976,12 +984,12 @@ impl PropertyDeclaration {
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match *self {
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% for property in data.longhands:
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PropertyDeclaration::${property.camel_case}(ref value) => match *value {
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DeclaredValue::WithVariables { .. } => true,
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DeclaredValue::WithVariables(_) => true,
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_ => false,
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},
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% endfor
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PropertyDeclaration::Custom(_, ref value) => match *value {
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DeclaredValue::WithVariables { .. } => true,
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DeclaredValue::WithVariables(_) => true,
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_ => false,
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}
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}
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@ -997,7 +1005,7 @@ impl PropertyDeclaration {
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match *self {
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% for property in data.longhands:
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PropertyDeclaration::${property.camel_case}(ref value) => {
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matches!(*value, DeclaredValue::WithVariables { .. })
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matches!(*value, DeclaredValue::WithVariables(_))
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},
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% endfor
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PropertyDeclaration::Custom(..) => true
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@ -22,7 +22,7 @@
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(&DeclaredValue::Value(ref x_value), &DeclaredValue::Value(ref y_container)) => {
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*x_value == y_container.0
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},
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(&DeclaredValue::WithVariables { .. }, &DeclaredValue::WithVariables { .. }) => true,
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(&DeclaredValue::WithVariables(_), &DeclaredValue::WithVariables(_)) => true,
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(&DeclaredValue::Initial, &DeclaredValue::Initial) => true,
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(&DeclaredValue::Inherit, &DeclaredValue::Inherit) => true,
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(&DeclaredValue::Unset, &DeclaredValue::Unset) => true,
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@ -43,8 +43,8 @@
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(&DeclaredValue::Value(ref x_value), &DeclaredValue::Value(ref y_container)) => {
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*x_value == y_container.0
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},
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(_, &DeclaredValue::WithVariables { .. }) |
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(&DeclaredValue::WithVariables { .. }, _) => {
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(_, &DeclaredValue::WithVariables(_)) |
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(&DeclaredValue::WithVariables(_), _) => {
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// We don't serialize shorthands with variables
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return dest.write_str("");
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},
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@ -7,7 +7,7 @@ use style::properties::{PropertyDeclaration, specified_value_sizes};
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#[test]
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fn size_of_property_declaration() {
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let old = 72;
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let old = 48;
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let new = size_of::<PropertyDeclaration>();
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if new < old {
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panic!("Your changes have decreased the stack size of PropertyDeclaration enum from {} to {}. \
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