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Have shorthand parsing functions return values

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Shorthands are responsible to set all its longhands to a proper value,
rather than returning None.

Fixes #15380.
This commit is contained in:
Xidorn Quan 2017-02-28 15:21:17 +11:00
parent 2e07ce7e84
commit f33b0b4ea3
18 changed files with 240 additions and 259 deletions
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18
components/style/properties/helpers.mako.rs
View file

@ -492,8 +492,7 @@
pub struct Longhands {
% for sub_property in shorthand.sub_properties:
pub ${sub_property.ident}:
Option<longhands::${sub_property.ident}::SpecifiedValue>,
pub ${sub_property.ident}: longhands::${sub_property.ident}::SpecifiedValue,
% endfor
}
@ -606,14 +605,11 @@
if let Ok(value) = value {
% for sub_property in shorthand.sub_properties:
declarations.push((PropertyDeclaration::${sub_property.camel_case}(
match value.${sub_property.ident} {
% if sub_property.boxed:
Some(value) => DeclaredValue::Value(Box::new(value)),
% else:
Some(value) => DeclaredValue::Value(value),
% endif
None => DeclaredValue::Initial,
}
% if sub_property.boxed:
DeclaredValue::Value(Box::new(value.${sub_property.ident}))
% else:
DeclaredValue::Value(value.${sub_property.ident})
% endif
), Importance::Normal));
% endfor
Ok(())
@ -660,7 +656,7 @@
% endif
Ok(Longhands {
% for side in ["top", "right", "bottom", "left"]:
${to_rust_ident(sub_property_pattern % side)}: Some(${side}),
${to_rust_ident(sub_property_pattern % side)}: ${side},
% endfor
})
}