| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "core/css/cssom/CSSMathNegate.h" |
| |
| #include "core/css/cssom/CSSNumericSumValue.h" |
| |
| namespace blink { |
| |
| WTF::Optional<CSSNumericSumValue> CSSMathNegate::SumValue() const { |
| auto maybe_sum = value_->SumValue(); |
| if (!maybe_sum) |
| return WTF::nullopt; |
| |
| std::for_each(maybe_sum->terms.begin(), maybe_sum->terms.end(), |
| [](auto& term) { term.value *= -1; }); |
| return maybe_sum; |
| } |
| |
| } // namespace blink |
