File: variable-exponential-blowup.html

package info (click to toggle)
thunderbird 1%3A78.14.0-1~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 2,922,628 kB
  • sloc: cpp: 5,990,120; javascript: 4,418,692; ansic: 3,063,889; python: 915,509; asm: 304,197; xml: 206,623; sh: 109,253; java: 108,679; makefile: 22,985; perl: 15,867; yacc: 4,565; objc: 3,026; pascal: 1,787; lex: 1,720; ada: 1,681; cs: 879; exp: 505; awk: 485; sql: 452; php: 436; lisp: 432; ruby: 99; sed: 69; csh: 45
file content (28 lines) | stat: -rw-r--r-- 931 bytes parent folder | download | duplicates (25) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
<!doctype html>
<title>CSS Variables Test: Exponential blowup doesn't crash</title>
<meta charset="UTF-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<link rel="help" href="https://drafts.csswg.org/css-variables/">
<script>
  let css = `
    --v0: "Something really really really long";
  `;
  for (let i = 0; i < 31; ++i)
    css += `--v${i + 1}: var(--v${i}) var(--v${i});`;
  let s = document.createElement("style");
  s.innerHTML = `
    :root { ${css}; }
    :root::before { content: var(--v31); }
  `;
  document.head.appendChild(s);
</script>
PASS if doesn't crash
<script>
  test(function() {
    getComputedStyle(document.documentElement, "::before").content;
    assert_true(true, "Didn't crash");
  });
</script>