Auto merge of #19529 - DonatJR:counter-reset-out-of-mako, r=emilio

style: moved css longhand counter-reset out of mako

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This is a sub-PR of #19015
Code does not yet compile with `build-geckolib`.
r? emilio

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #19387

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- [x] These changes do not require tests

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components/style/values/computed/counters.rs

@@ -0,0 +1,80 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//! Computed values for counter properties
+
+use values::CustomIdent;
+use values::computed::{Context, ToComputedValue};
+use values::generics::counters::CounterIntegerList;
+use values::specified::{CounterIncrement as SpecifiedCounterIncrement, CounterReset as SpecifiedCounterReset};
+
+type ComputedIntegerList = CounterIntegerList<i32>;
+
+/// A computed value for the `counter-increment` property.
+#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToCss)]
+pub struct CounterIncrement(pub ComputedIntegerList);
+
+impl CounterIncrement {
+    /// Returns the `none` value.
+    #[inline]
+    pub fn none() -> CounterIncrement {
+        CounterIncrement(ComputedIntegerList::new(Vec::new()))
+    }
+
+    /// Returns a new computed `counter-increment` object with the given values.
+    pub fn new(vec: Vec<(CustomIdent, i32)>) -> CounterIncrement {
+        CounterIncrement(ComputedIntegerList::new(vec))
+    }
+
+    /// Returns the values of the computed `counter-increment` object.
+    pub fn get_values(&self) -> &[(CustomIdent, i32)] {
+        self.0.get_values()
+    }
+}
+
+impl ToComputedValue for SpecifiedCounterIncrement {
+    type ComputedValue = CounterIncrement;
+
+    fn to_computed_value(&self, context: &Context) -> Self::ComputedValue {
+        CounterIncrement(self.0.to_computed_value(context))
+    }
+
+    fn from_computed_value(computed: &Self::ComputedValue) -> Self {
+        SpecifiedCounterIncrement(ToComputedValue::from_computed_value(&computed.0))
+    }
+}
+
+/// A computed value for the `counter-reset` property.
+#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToCss)]
+pub struct CounterReset(pub ComputedIntegerList);
+
+impl CounterReset {
+    /// Returns the `none` value.
+    #[inline]
+    pub fn none() -> CounterReset {
+        CounterReset(ComputedIntegerList::new(Vec::new()))
+    }
+
+    /// Returns a new computed `counter-reset` object with the given values.
+    pub fn new(vec: Vec<(CustomIdent, i32)>) -> CounterReset {
+        CounterReset(ComputedIntegerList::new(vec))
+    }
+
+    /// Returns the values of the computed `counter-reset` object.
+    pub fn get_values(&self) -> &[(CustomIdent, i32)] {
+        self.0.get_values()
+    }
+}
+
+impl ToComputedValue for SpecifiedCounterReset {
+    type ComputedValue = CounterReset;
+
+    fn to_computed_value(&self, context: &Context) -> Self::ComputedValue {
+        CounterReset(self.0.to_computed_value(context))
+    }
+
+    fn from_computed_value(computed: &Self::ComputedValue) -> Self {
+        SpecifiedCounterReset(ToComputedValue::from_computed_value(&computed.0))
+    }
+}

components/style/values/computed/mod.rs

@@ -46,6 +46,7 @@ pub use self::font::{MozScriptLevel, MozScriptMinSize, MozScriptSizeMultiplier,
 pub use self::box_::{AnimationIterationCount, AnimationName, Display, OverscrollBehavior, Contain};
 pub use self::box_::{OverflowClipBox, ScrollSnapType, TouchAction, VerticalAlign, WillChange};
 pub use self::color::{Color, ColorPropertyValue, RGBAColor};
+pub use self::counters::{CounterIncrement, CounterReset};
 pub use self::effects::{BoxShadow, Filter, SimpleShadow};
 pub use self::flex::FlexBasis;
 pub use self::image::{Gradient, GradientItem, Image, ImageLayer, LineDirection, MozImageRect};
@@ -86,6 +87,7 @@ pub mod border;
 #[path = "box.rs"]
 pub mod box_;
 pub mod color;
+pub mod counters;
 pub mod effects;
 pub mod flex;
 pub mod font;