[webkit-changes] [WebKit/WebKit] a19262: Fix bug in CSSCalcOperationNode::createHypot() fou...

[Chris Dumez]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: a19262e5a43e349a37ccd6de7222d87fa78ffb18
      https://github.com/WebKit/WebKit/commit/a19262e5a43e349a37ccd6de7222d87fa78ffb18
  Author: Chris Dumez <cdumez at apple.com>
  Date:   2023-02-03 (Fri, 03 Feb 2023)

  Changed paths:
    M Source/WebCore/css/calc/CSSCalcOperationNode.cpp

  Log Message:
  -----------
  Fix bug in CSSCalcOperationNode::createHypot() found by new libcpp assertions
https://bugs.webkit.org/show_bug.cgi?id=251655
rdar://104981701

Reviewed by Ryosuke Niwa.

fast/css/calc-parsing.html has been crashing on Internal bots since we enabled
the new libcpp assertions. This was caused by CSSCalcOperationNode::createHypot()
not checking if expectedCategory was std::nullopt before dereferencing it.

* Source/WebCore/css/calc/CSSCalcOperationNode.cpp:
(WebCore::CSSCalcOperationNode::createHypot):

Canonical link: https://commits.webkit.org/259814@main