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// Copyright 2015 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_UNDERLYING_LENGTH_CHECKER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_UNDERLYING_LENGTH_CHECKER_H_
#include <memory>
#include "base/memory/ptr_util.h"
#include "third_party/blink/renderer/core/animation/interpolable_value.h"
#include "third_party/blink/renderer/core/animation/interpolation_type.h"
namespace blink {
class UnderlyingLengthChecker : public InterpolationType::ConversionChecker {
public:
explicit UnderlyingLengthChecker(wtf_size_t underlying_length)
: underlying_length_(underlying_length) {}
static wtf_size_t GetUnderlyingLength(const InterpolationValue& underlying) {
if (!underlying)
return 0;
return To<InterpolableList>(*underlying.interpolable_value).length();
}
bool IsValid(const InterpolationEnvironment&,
const InterpolationValue& underlying) const final {
return underlying_length_ == GetUnderlyingLength(underlying);
}
private:
wtf_size_t underlying_length_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_UNDERLYING_LENGTH_CHECKER_H_
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