зеркало из https://github.com/mozilla/gecko-dev.git
servo: Merge #10275 - Use more mako machinery in geckolib (and make a few small changes to style/properties.mako.rs) (from bholley:style_struct_templates); r=SimonSapin
Source-Repo: https://github.com/servo/servo Source-Revision: ed9c64e827a1dd935ac9fa2e7127dafad0a5f29e
This commit is contained in:
Bobby Holley
Родитель
1a64fe5c0b
Коммит
d55b0616bc
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@ -72,12 +72,34 @@ class Shorthand(object):
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self.sub_properties = [LONGHANDS_BY_NAME[s] for s in sub_properties]
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self.internal = internal
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class Method(object):
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def __init__(self, name, return_type=None, arg_types=None, is_mut=False):
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self.name = name
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self.return_type = return_type
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self.arg_types = arg_types or []
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self.is_mut = is_mut
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def arg_list(self):
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args = ["_: " + x for x in self.arg_types]
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args = ["&mut self" if self.is_mut else "&self"] + args
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return ", ".join(args)
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def signature(self):
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sig = "fn %s(%s)" % (self.name, self.arg_list())
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if self.return_type:
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sig = sig + " -> " + self.return_type
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return sig
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def declare(self):
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return self.signature() + ";"
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def stub(self):
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return self.signature() + "{ unimplemented!() }"
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class StyleStruct(object):
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def __init__(self, name, inherited):
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def __init__(self, name, inherited, gecko_name, additional_methods):
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self.name = name
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self.ident = to_rust_ident(name.lower())
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self.longhands = []
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self.inherited = inherited
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self.gecko_name = gecko_name
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self.additional_methods = additional_methods or []
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STYLE_STRUCTS = []
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THIS_STYLE_STRUCT = None
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@ -86,10 +108,10 @@ LONGHANDS_BY_NAME = {}
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DERIVED_LONGHANDS = {}
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SHORTHANDS = []
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def new_style_struct(name, is_inherited):
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def new_style_struct(name, is_inherited, gecko_name=None, additional_methods=None):
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global THIS_STYLE_STRUCT
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style_struct = StyleStruct(name, is_inherited)
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style_struct = StyleStruct(name, is_inherited, gecko_name, additional_methods)
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STYLE_STRUCTS.append(style_struct)
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THIS_STYLE_STRUCT = style_struct
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return ""
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@ -312,14 +334,14 @@ pub mod longhands {
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// CSS 2.1, Section 8 - Box model
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${new_style_struct("Margin", is_inherited=False)}
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${new_style_struct("Margin", is_inherited=False, gecko_name="nsStyleMargin")}
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% for side in ["top", "right", "bottom", "left"]:
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${predefined_type("margin-" + side, "LengthOrPercentageOrAuto",
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"computed::LengthOrPercentageOrAuto::Length(Au(0))")}
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% endfor
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${new_style_struct("Padding", is_inherited=False)}
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${new_style_struct("Padding", is_inherited=False, gecko_name="nsStylePadding")}
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% for side in ["top", "right", "bottom", "left"]:
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${predefined_type("padding-" + side, "LengthOrPercentage",
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@ -327,7 +349,9 @@ pub mod longhands {
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"parse_non_negative")}
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% endfor
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${new_style_struct("Border", is_inherited=False)}
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${new_style_struct("Border", is_inherited=False, gecko_name="nsStyleBorder",
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additional_methods=[Method("border_" + side + "_is_none_or_hidden_and_has_nonzero_width",
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"bool") for side in ["top", "right", "bottom", "left"]])}
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% for side in ["top", "right", "bottom", "left"]:
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${predefined_type("border-%s-color" % side, "CSSColor", "::cssparser::Color::CurrentColor")}
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@ -382,7 +406,8 @@ pub mod longhands {
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"parse")}
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% endfor
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${new_style_struct("Outline", is_inherited=False)}
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${new_style_struct("Outline", is_inherited=False, gecko_name="nsStyleOutline",
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additional_methods=[Method("outline_is_none_or_hidden_and_has_nonzero_width", "bool")])}
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// TODO(pcwalton): `invert`
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${predefined_type("outline-color", "CSSColor", "::cssparser::Color::CurrentColor")}
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@ -435,7 +460,7 @@ pub mod longhands {
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${predefined_type("outline-offset", "Length", "Au(0)")}
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${new_style_struct("PositionOffsets", is_inherited=False)}
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${new_style_struct("PositionOffsets", is_inherited=False, gecko_name="nsStylePosition")}
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% for side in ["top", "right", "bottom", "left"]:
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${predefined_type(side, "LengthOrPercentageOrAuto",
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@ -444,7 +469,14 @@ pub mod longhands {
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// CSS 2.1, Section 9 - Visual formatting model
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${new_style_struct("Box", is_inherited=False)}
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${new_style_struct("Box", is_inherited=False, gecko_name="nsStyleDisplay",
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additional_methods=[Method("clone_display",
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"longhands::display::computed_value::T"),
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Method("clone_position",
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"longhands::position::computed_value::T"),
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Method("is_floated", "bool"),
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Method("overflow_x_is_visible", "bool"),
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Method("overflow_y_is_visible", "bool")])}
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// TODO(SimonSapin): don't parse `inline-table`, since we don't support it
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<%self:longhand name="display" custom_cascade="True">
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@ -602,7 +634,13 @@ pub mod longhands {
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}
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</%self:longhand>
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${new_style_struct("InheritedBox", is_inherited=True)}
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${new_style_struct("InheritedBox", is_inherited=True,
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additional_methods=[Method("clone_direction",
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"longhands::direction::computed_value::T"),
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Method("clone_writing_mode",
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"longhands::writing_mode::computed_value::T"),
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Method("clone_text_orientation",
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"longhands::text_orientation::computed_value::T")])}
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${single_keyword("direction", "ltr rtl")}
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@ -1031,7 +1069,7 @@ pub mod longhands {
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}
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</%self:longhand>
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${new_style_struct("List", is_inherited=True)}
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${new_style_struct("List", is_inherited=True, gecko_name="nsStyleList")}
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${single_keyword("list-style-position", "outside inside")}
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@ -1263,7 +1301,7 @@ pub mod longhands {
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// CSS 2.1, Section 14 - Colors and Backgrounds
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${new_style_struct("Background", is_inherited=False)}
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${new_style_struct("Background", is_inherited=False, gecko_name="nsStyleBackground")}
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${predefined_type(
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"background-color", "CSSColor",
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"::cssparser::Color::RGBA(::cssparser::RGBA { red: 0., green: 0., blue: 0., alpha: 0. }) /* transparent */")}
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@ -1585,7 +1623,9 @@ pub mod longhands {
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}
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</%self:longhand>
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${new_style_struct("Color", is_inherited=True)}
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${new_style_struct("Color", is_inherited=True, gecko_name="nsStyleColor",
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additional_methods=[Method("clone_color",
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"longhands::color::computed_value::T")])}
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<%self:raw_longhand name="color">
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use cssparser::{Color, RGBA};
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@ -1624,7 +1664,12 @@ pub mod longhands {
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// CSS 2.1, Section 15 - Fonts
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${new_style_struct("Font", is_inherited=True)}
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${new_style_struct("Font", is_inherited=True, gecko_name="nsStyleFont",
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additional_methods=[Method("clone_font_size",
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"longhands::font_size::computed_value::T"),
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Method("clone_font_weight",
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"longhands::font_weight::computed_value::T"),
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Method("compute_font_hash", is_mut=True)])}
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<%self:longhand name="font-family">
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use self::computed_value::FontFamily;
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@ -1928,7 +1973,9 @@ pub mod longhands {
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// CSS 2.1, Section 16 - Text
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${new_style_struct("InheritedText", is_inherited=True)}
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${new_style_struct("InheritedText", is_inherited=True, gecko_name="nsStyleText",
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additional_methods=[Method("clone__servo_text_decorations_in_effect",
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"longhands::_servo_text_decorations_in_effect::computed_value::T")])}
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<%self:longhand name="text-align">
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pub use self::computed_value::T as SpecifiedValue;
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@ -2120,7 +2167,10 @@ pub mod longhands {
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// TODO(pcwalton): Support `text-justify: distribute`.
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${single_keyword("text-justify", "auto none inter-word")}
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${new_style_struct("Text", is_inherited=False)}
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${new_style_struct("Text", is_inherited=False, gecko_name="nsStyleTextReset",
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additional_methods=[Method("has_underline", "bool"),
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Method("has_overline", "bool"),
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Method("has_line_through", "bool")])}
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${single_keyword("unicode-bidi", "normal embed isolate bidi-override isolate-override plaintext")}
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@ -2343,7 +2393,7 @@ pub mod longhands {
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${single_keyword("text-rendering", "auto optimizespeed optimizelegibility geometricprecision")}
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// CSS 2.1, Section 17 - Tables
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${new_style_struct("Table", is_inherited=False)}
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${new_style_struct("Table", is_inherited=False, gecko_name="nsStyleTable")}
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${single_keyword("table-layout", "auto fixed")}
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@ -2515,7 +2565,7 @@ pub mod longhands {
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${single_keyword("pointer-events", "auto none")}
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${new_style_struct("Column", is_inherited=False)}
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${new_style_struct("Column", is_inherited=False, gecko_name="nsStyleColumn")}
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<%self:longhand name="column-width" experimental="True">
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use cssparser::ToCss;
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@ -4275,7 +4325,8 @@ pub mod longhands {
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}
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</%self:longhand>
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${new_style_struct("Animation", is_inherited=False)}
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${new_style_struct("Animation", is_inherited=False,
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additional_methods=[Method("transition_count", return_type="usize")])}
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// TODO(pcwalton): Multiple transitions.
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<%self:longhand name="transition-duration">
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@ -6066,46 +6117,17 @@ pub mod style_struct_traits {
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use super::longhands;
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% for style_struct in STYLE_STRUCTS:
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pub trait T${style_struct.name}: Clone + PartialEq {
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pub trait T${style_struct.name}: Clone {
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% for longhand in style_struct.longhands:
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#[allow(non_snake_case)]
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fn set_${longhand.ident}(&mut self, v: longhands::${longhand.ident}::computed_value::T);
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#[allow(non_snake_case)]
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fn copy_${longhand.ident}_from(&mut self, other: &Self);
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% endfor
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% if style_struct.name == "Animation":
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fn transition_count(&self) -> usize;
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% elif style_struct.name == "Border":
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% for side in ["top", "right", "bottom", "left"]:
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fn border_${side}_is_none_or_hidden_and_has_nonzero_width(&self) -> bool;
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% endfor
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% elif style_struct.name == "Box":
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fn clone_display(&self) -> longhands::display::computed_value::T;
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fn clone_position(&self) -> longhands::position::computed_value::T;
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fn is_floated(&self) -> bool;
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fn overflow_x_is_visible(&self) -> bool;
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fn overflow_y_is_visible(&self) -> bool;
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% elif style_struct.name == "Color":
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fn clone_color(&self) -> longhands::color::computed_value::T;
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% elif style_struct.name == "Font":
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fn clone_font_size(&self) -> longhands::font_size::computed_value::T;
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fn clone_font_weight(&self) -> longhands::font_weight::computed_value::T;
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fn compute_font_hash(&mut self);
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% elif style_struct.name == "InheritedBox":
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fn clone_direction(&self) -> longhands::direction::computed_value::T;
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fn clone_writing_mode(&self) -> longhands::writing_mode::computed_value::T;
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fn clone_text_orientation(&self) -> longhands::text_orientation::computed_value::T;
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% elif style_struct.name == "InheritedText":
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% for additional in style_struct.additional_methods:
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#[allow(non_snake_case)]
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fn clone__servo_text_decorations_in_effect(&self) ->
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longhands::_servo_text_decorations_in_effect::computed_value::T;
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% elif style_struct.name == "Outline":
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fn outline_is_none_or_hidden_and_has_nonzero_width(&self) -> bool;
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% elif style_struct.name == "Text":
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fn has_underline(&self) -> bool;
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fn has_overline(&self) -> bool;
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fn has_line_through(&self) -> bool;
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% endif
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${additional.declare()}
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% endfor
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}
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% endfor
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}
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@ -6692,7 +6714,7 @@ fn cascade_with_cached_declarations<C: ComputedValues>(
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context.style
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}
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pub type CascadePropertyFn<C: ComputedValues> =
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pub type CascadePropertyFn<C /*: ComputedValues */> =
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extern "Rust" fn(declaration: &PropertyDeclaration,
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inherited_style: &C,
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context: &mut computed::Context<C>,
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@ -35,6 +35,8 @@ extern crate util;
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#[allow(dead_code, non_camel_case_types)]
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mod bindings;
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mod data;
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#[allow(dead_code, non_camel_case_types, non_snake_case, non_upper_case_globals)]
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mod gecko_style_structs;
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#[allow(non_snake_case)]
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pub mod glue;
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mod selector_impl;
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@ -3,6 +3,14 @@
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use app_units::Au;
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% for style_struct in STYLE_STRUCTS:
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%if style_struct.gecko_name:
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use gecko_style_structs::${style_struct.gecko_name};
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% endif
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% endfor
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use heapsize::HeapSizeOf;
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use std::fmt::{self, Debug};
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use std::mem::zeroed;
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use std::sync::Arc;
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use style::custom_properties::ComputedValuesMap;
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use style::logical_geometry::WritingMode;
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@ -80,11 +88,68 @@ impl ComputedValues for GeckoComputedValues {
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fn is_multicol(&self) -> bool { unimplemented!() }
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}
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% for style_struct in STYLE_STRUCTS:
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#[derive(PartialEq, Clone, HeapSizeOf, Debug)]
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<%def name="declare_style_struct(style_struct)">
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#[derive(Clone, HeapSizeOf, Debug)]
|
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% if style_struct.gecko_name:
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pub struct Gecko${style_struct.name} {
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gecko: ${style_struct.gecko_name},
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}
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% else:
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pub struct Gecko${style_struct.name};
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% endif
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</%def>
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<%def name="impl_style_struct(style_struct)">
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impl Gecko${style_struct.name} {
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#[allow(dead_code, unused_variables)]
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fn initial() -> Self {
|
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% if style_struct.gecko_name:
|
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let result = Gecko${style_struct.name} { gecko: unsafe { zeroed() } };
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panic!("Need to invoke Gecko placement new");
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% else:
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Gecko${style_struct.name}
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% endif
|
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}
|
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}
|
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%if style_struct.gecko_name:
|
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impl Drop for Gecko${style_struct.name} {
|
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fn drop(&mut self) {
|
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panic!("Need to invoke Gecko destructor");
|
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}
|
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}
|
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impl Clone for ${style_struct.gecko_name} {
|
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fn clone(&self) -> Self {
|
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panic!("Need to invoke Gecko copy constructor");
|
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}
|
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}
|
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unsafe impl Send for ${style_struct.gecko_name} {}
|
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unsafe impl Sync for ${style_struct.gecko_name} {}
|
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impl HeapSizeOf for ${style_struct.gecko_name} {
|
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// Not entirely accurate, but good enough for now.
|
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fn heap_size_of_children(&self) -> usize { 0 }
|
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}
|
||||
impl Debug for ${style_struct.gecko_name} {
|
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// FIXME(bholley): Generate this.
|
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "GECKO STYLE STRUCT")
|
||||
}
|
||||
}
|
||||
%endif
|
||||
</%def>
|
||||
|
||||
<%def name="raw_impl_trait(style_struct, skip_longhands=None, skip_additionals=None)">
|
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impl T${style_struct.name} for Gecko${style_struct.name} {
|
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% for longhand in style_struct.longhands:
|
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/*
|
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* Manually-Implemented Methods.
|
||||
*/
|
||||
${caller.body().strip()}
|
||||
|
||||
/*
|
||||
* Auto-Generated Methods.
|
||||
*/
|
||||
<% longhands = [x for x in style_struct.longhands
|
||||
if not (skip_longhands and x.name in skip_longhands)] %>
|
||||
% for longhand in longhands:
|
||||
fn set_${longhand.ident}(&mut self, _: longhands::${longhand.ident}::computed_value::T) {
|
||||
unimplemented!()
|
||||
}
|
||||
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@ -92,77 +157,51 @@ impl T${style_struct.name} for Gecko${style_struct.name} {
|
|||
unimplemented!()
|
||||
}
|
||||
% endfor
|
||||
% if style_struct.name == "Animation":
|
||||
fn transition_count(&self) -> usize {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "Border":
|
||||
% for side in ["top", "right", "bottom", "left"]:
|
||||
fn border_${side}_is_none_or_hidden_and_has_nonzero_width(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
<% additionals = [x for x in style_struct.additional_methods
|
||||
if not (skip_additionals and x.name in skip_additionals)] %>
|
||||
% for additional in additionals:
|
||||
${additional.stub()}
|
||||
% endfor
|
||||
% elif style_struct.name == "Box":
|
||||
fn clone_display(&self) -> longhands::display::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
fn clone_position(&self) -> longhands::position::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
fn is_floated(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
fn overflow_x_is_visible(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
fn overflow_y_is_visible(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "Color":
|
||||
fn clone_color(&self) -> longhands::color::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "Font":
|
||||
fn clone_font_size(&self) -> longhands::font_size::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
fn clone_font_weight(&self) -> longhands::font_weight::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
fn compute_font_hash(&mut self) {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "InheritedBox":
|
||||
fn clone_direction(&self) -> longhands::direction::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
fn clone_writing_mode(&self) -> longhands::writing_mode::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
fn clone_text_orientation(&self) -> longhands::text_orientation::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "InheritedText":
|
||||
fn clone__servo_text_decorations_in_effect(&self) ->
|
||||
longhands::_servo_text_decorations_in_effect::computed_value::T {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "Outline":
|
||||
fn outline_is_none_or_hidden_and_has_nonzero_width(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
% elif style_struct.name == "Text":
|
||||
fn has_underline(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
fn has_overline(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
fn has_line_through(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
% endif
|
||||
|
||||
}
|
||||
</%def>
|
||||
|
||||
<%! MANUAL_STYLE_STRUCTS = [] %>
|
||||
<%def name="impl_trait(style_struct_name, skip_longhands=None, skip_additionals=None)">
|
||||
<%self:raw_impl_trait style_struct="${next(x for x in STYLE_STRUCTS if x.name == style_struct_name)}"
|
||||
skip_longhands="${skip_longhands}" skip_additionals="${skip_additionals}">
|
||||
${caller.body()}
|
||||
</%self:raw_impl_trait>
|
||||
<% MANUAL_STYLE_STRUCTS.append(style_struct_name) %>
|
||||
</%def>
|
||||
|
||||
// Proof-of-concept for a style struct with some manually-implemented methods. We add
|
||||
// the manually-implemented methods to skip_longhands and skip_additionals, and the
|
||||
// infrastructure auto-generates everything not in those lists. This allows us to
|
||||
// iteratively implement more and more methods.
|
||||
<%self:impl_trait style_struct_name="Border"
|
||||
skip_longhands="${['border-left-color', 'border-left-style']}"
|
||||
skip_additionals="${['border_bottom_is_none_or_hidden_and_has_nonzero_width']}">
|
||||
fn set_border_left_color(&mut self, _: longhands::border_left_color::computed_value::T) {
|
||||
unimplemented!()
|
||||
}
|
||||
fn copy_border_left_color_from(&mut self, _: &Self) {
|
||||
unimplemented!()
|
||||
}
|
||||
fn set_border_left_style(&mut self, _: longhands::border_left_style::computed_value::T) {
|
||||
unimplemented!()
|
||||
}
|
||||
fn copy_border_left_style_from(&mut self, _: &Self) {
|
||||
unimplemented!()
|
||||
}
|
||||
fn border_bottom_is_none_or_hidden_and_has_nonzero_width(&self) -> bool {
|
||||
unimplemented!()
|
||||
}
|
||||
</%self:impl_trait>
|
||||
|
||||
% for style_struct in STYLE_STRUCTS:
|
||||
${declare_style_struct(style_struct)}
|
||||
${impl_style_struct(style_struct)}
|
||||
% if not style_struct.name in MANUAL_STYLE_STRUCTS:
|
||||
<%self:raw_impl_trait style_struct="${style_struct}"></%self:raw_impl_trait>
|
||||
% endif
|
||||
% endfor
|
||||
|
|
|
|||
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