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7b134440fc
Implement custom element reactions <!-- Please describe your changes on the following line: --> Initial work for implementing custom element reactions: https://html.spec.whatwg.org/multipage/custom-elements.html#custom-element-reactions --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes fix #17433 (github issue number if applicable). <!-- Either: --> - [X] There are tests for these changes OR - [ ] These changes do not require tests because _____ <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/17614) <!-- Reviewable:end -->
39 lines
1.9 KiB
Rust
39 lines
1.9 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use script::test::size_of;
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// Macro so that we can stringify type names
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// I'd really prefer the tests themselves to be run at plugin time,
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// however rustc::middle doesn't have access to the full type data
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macro_rules! sizeof_checker (
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($testname: ident, $t: ident, $known_size: expr) => (
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#[test]
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fn $testname() {
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let new = size_of::$t();
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let old = $known_size;
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if new < old {
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panic!("Your changes have decreased the stack size of commonly used DOM struct {} from {} to {}. \
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Good work! Please update the size in tests/unit/script/size_of.rs.",
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stringify!($t), old, new)
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} else if new > old {
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panic!("Your changes have increased the stack size of commonly used DOM struct {} from {} to {}. \
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These structs are present in large quantities in the DOM, and increasing the size \
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may dramatically affect our memory footprint. Please consider choosing a design which \
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avoids this increase. If you feel that the increase is necessary, \
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update to the new size in tests/unit/script/size_of.rs.",
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stringify!($t), old, new)
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}
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});
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);
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// Update the sizes here
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sizeof_checker!(size_event_target, EventTarget, 40);
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sizeof_checker!(size_node, Node, 184);
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sizeof_checker!(size_element, Element, 424);
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sizeof_checker!(size_htmlelement, HTMLElement, 440);
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sizeof_checker!(size_div, HTMLDivElement, 440);
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sizeof_checker!(size_span, HTMLSpanElement, 440);
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sizeof_checker!(size_text, Text, 216);
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sizeof_checker!(size_characterdata, CharacterData, 216);
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