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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SMILNullType.h"
#include "mozilla/SMILValue.h"
#include "nsDebug.h"
namespace mozilla {
/*static*/
SMILNullType* SMILNullType::Singleton() {
static SMILNullType sSingleton;
return &sSingleton;
}
nsresult SMILNullType::Assign(SMILValue& aDest, const SMILValue& aSrc) const {
MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types");
MOZ_ASSERT(aSrc.mType == this, "Unexpected source type");
aDest.mU = aSrc.mU;
aDest.mType = Singleton();
return NS_OK;
}
bool SMILNullType::IsEqual(const SMILValue& aLeft,
const SMILValue& aRight) const {
MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types");
MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value");
return true; // All null-typed values are equivalent.
}
nsresult SMILNullType::Add(SMILValue& aDest, const SMILValue& aValueToAdd,
uint32_t aCount) const {
MOZ_ASSERT_UNREACHABLE("Adding NULL type");
return NS_ERROR_FAILURE;
}
nsresult SMILNullType::ComputeDistance(const SMILValue& aFrom,
const SMILValue& aTo,
double& aDistance) const {
MOZ_ASSERT_UNREACHABLE("Computing distance for NULL type");
return NS_ERROR_FAILURE;
}
nsresult SMILNullType::Interpolate(const SMILValue& aStartVal,
const SMILValue& aEndVal,
double aUnitDistance,
SMILValue& aResult) const {
MOZ_ASSERT_UNREACHABLE("Interpolating NULL type");
return NS_ERROR_FAILURE;
}
} // namespace mozilla
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