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style: Assert that initial values in style structs match those in property definitions.

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Differential Revision: https://phabricator.services.mozilla.com/D67930
This commit is contained in:
Cameron McCormack 2020-04-08 05:31:26 +00:00 • committed by Emilio Cobos Álvarez
parent fa733ecb72
commit c55cd22339
1 changed files with 38 additions and 0 deletions
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38
components/style/properties/gecko.mako.rs
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@ -29,6 +29,7 @@ use crate::gecko_bindings::bindings::Gecko_nsStyleFont_CopyLangFrom;
use crate::gecko_bindings::structs; use crate::gecko_bindings::structs;
use crate::gecko_bindings::structs::nsCSSPropertyID; use crate::gecko_bindings::structs::nsCSSPropertyID;
use crate::gecko_bindings::structs::mozilla::PseudoStyleType; use crate::gecko_bindings::structs::mozilla::PseudoStyleType;
use crate::gecko::data::PerDocumentStyleData;
use crate::gecko::values::round_border_to_device_pixels; use crate::gecko::values::round_border_to_device_pixels;
use crate::logical_geometry::WritingMode; use crate::logical_geometry::WritingMode;
use crate::media_queries::Device; use crate::media_queries::Device;
@ -2128,3 +2129,40 @@ mask-mode mask-repeat mask-clip mask-origin mask-composite mask-position-x mask-
${declare_style_struct(style_struct)} ${declare_style_struct(style_struct)}
${impl_style_struct(style_struct)} ${impl_style_struct(style_struct)}
% endfor % endfor
/// Assert that the initial values set in Gecko style struct constructors
/// match the values returned by `get_initial_value()` for each longhand.
#[cfg(feature = "gecko")]
#[inline]
pub fn assert_initial_values_match(data: &PerDocumentStyleData) {
if cfg!(debug_assertions) {
let data = data.borrow();
let cv = data.stylist.device().default_computed_values();
<%
# Skip properties with initial values that change at computed value time.
SKIPPED = [
"border-top-width",
"border-bottom-width",
"border-left-width",
"border-right-width",
"font-family",
"font-size",
"outline-width",
]
TO_TEST = [p for p in data.longhands if p.enabled_in != "" and not p.logical and not p.name in SKIPPED]
%>
% for property in TO_TEST:
assert_eq!(
cv.clone_${property.ident}(),
longhands::${property.ident}::get_initial_value(),
concat!(
"initial value in Gecko style struct for ",
stringify!(${property.ident}),
" must match longhands::",
stringify!(${property.ident}),
"::get_initial_value()"
)
);
% endfor
}
}