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/* 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 https://mozilla.org/MPL/2.0/. */
#[cfg(all(test, target_pointer_width = "64"))]
#[test]
fn size_of_specified_values() {
use std::mem::size_of;
use style;
let threshold = 24;
let mut bad_properties = vec![];
macro_rules! check_property {
( $( { $name: ident, $boxed: expr } )+ ) => {
$(
let size = size_of::<style::properties::longhands::$name::SpecifiedValue>();
let is_boxed = $boxed;
if (!is_boxed && size > threshold) || (is_boxed && size <= threshold) {
bad_properties.push((stringify!($name), size, is_boxed));
}
)+
}
}
longhand_properties_idents!(check_property);
let mut failing_messages = vec![];
for bad_prop in bad_properties {
if !bad_prop.2 {
failing_messages.push(
format!("Your changes have increased the size of {} SpecifiedValue to {}. The threshold is \
currently {}. SpecifiedValues affect size of PropertyDeclaration enum and \
increasing the size may negative affect style system performance. Please consider \
using `boxed=\"True\"` in this longhand.",
bad_prop.0, bad_prop.1, threshold));
} else if bad_prop.2 {
failing_messages.push(
format!("Your changes have decreased the size of {} SpecifiedValue to {}. Good work! \
The threshold is currently {}. Please consider removing `boxed=\"True\"` from this longhand.",
bad_prop.0, bad_prop.1, threshold));
}
}
if !failing_messages.is_empty() {
panic!("{}", failing_messages.join("\n\n"));
}
}