Add spec links for margin properties, support spec links on four_sides_shorthand

components/style/properties/helpers.mako.rs

@@ -551,10 +551,9 @@
     % endif
 </%def>
 
-<%def name="four_sides_shorthand(name, sub_property_pattern, parser_function, needs_context=True)">
-    <%self:shorthand name="${name}" sub_properties="${
-            ' '.join(sub_property_pattern % side
-                     for side in ['top', 'right', 'bottom', 'left'])}">
+<%def name="four_sides_shorthand(name, sub_property_pattern, parser_function, needs_context=True, **kwargs)">
+    <% sub_properties=' '.join(sub_property_pattern % side for side in ['top', 'right', 'bottom', 'left']) %>
+    <%call expr="self.shorthand(name, sub_properties=sub_properties, **kwargs)">
         #[allow(unused_imports)]
         use parser::Parse;
         use super::parse_four_sides;
@@ -586,7 +585,7 @@
                 )
             }
         }
-    </%self:shorthand>
+    </%call>
 </%def>
 
 <%def name="logical_setter_helper(name)">

components/style/properties/longhand/margin.mako.rs

@@ -7,7 +7,12 @@
 <% data.new_style_struct("Margin", inherited=False) %>
 
 % for side in ALL_SIDES:
+    <%
+        spec = "https://drafts.csswg.org/css-box/#propdef-margin-%s" % side[0]
+        if side[1]:
+            spec = "https://drafts.csswg.org/css-logical-props/#propdef-margin-%s" % side[1]
+    %>
     ${helpers.predefined_type("margin-%s" % side[0], "LengthOrPercentageOrAuto",
                               "computed::LengthOrPercentageOrAuto::Length(Au(0))",
-                              animatable=True, logical = side[1])}
+                              animatable=True, logical = side[1], spec = spec)}
 % endfor

components/style/properties/shorthand/margin.mako.rs

@@ -4,4 +4,5 @@
 
 <%namespace name="helpers" file="/helpers.mako.rs" />
 
-${helpers.four_sides_shorthand("margin", "margin-%s", "specified::LengthOrPercentageOrAuto::parse")}
+${helpers.four_sides_shorthand("margin", "margin-%s", "specified::LengthOrPercentageOrAuto::parse",
+                               spec="https://drafts.csswg.org/css-box/#propdef-margin")}