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style: Move size of tests to compile-time tests in the style crate

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Same reasoning as the previous commit.

Differential Revision: https://phabricator.services.mozilla.com/D146104
This commit is contained in:
Emilio Cobos Álvarez 2023-08-14 22:05:25 +02:00 • committed by Martin Robinson
parent 50d31686be
commit f48b95e2e3
13 changed files with 53 additions and 49 deletions
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34
components/size_of_test/lib.rs
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@ -1,34 +0,0 @@
/* 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/. */
#[macro_export]
macro_rules! size_of_test {
($testname: ident, $t: ty, $expected_size: expr) => {
#[test]
fn $testname() {
let new = ::std::mem::size_of::<$t>();
let old = $expected_size;
if new < old {
panic!(
"Your changes have decreased the stack size of {} from {} to {}. \
Good work! Please update the expected size in {}.",
stringify!($t),
old,
new,
file!()
)
} else if new > old {
panic!(
"Your changes have increased the stack size of {} from {} to {}. \
Please consider choosing a design which avoids this increase. \
If you feel that the increase is necessary, update the size in {}.",
stringify!($t),
old,
new,
file!()
)
}
}
};
}