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/*
* Copyright 2021 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_CONSTRUCTOR_DIAGONAL_MATRIX
#define SKSL_CONSTRUCTOR_DIAGONAL_MATRIX
#include "include/private/SkSLDefines.h"
#include "src/sksl/SkSLContext.h"
#include "src/sksl/ir/SkSLConstructor.h"
#include "src/sksl/ir/SkSLExpression.h"
#include "src/sksl/ir/SkSLLiteral.h"
#include <memory>
namespace SkSL {
/**
* Represents the construction of a diagonal matrix, such as `half3x3(n)`.
*
* These always contain exactly 1 scalar.
*/
class ConstructorDiagonalMatrix final : public SingleArgumentConstructor {
public:
inline static constexpr Kind kExpressionKind = Kind::kConstructorDiagonalMatrix;
ConstructorDiagonalMatrix(int line, const Type& type, std::unique_ptr<Expression> arg)
: INHERITED(line, kExpressionKind, &type, std::move(arg)) {}
static std::unique_ptr<Expression> Make(const Context& context,
int line,
const Type& type,
std::unique_ptr<Expression> arg);
std::unique_ptr<Expression> clone() const override {
return std::make_unique<ConstructorDiagonalMatrix>(fLine, this->type(),
argument()->clone());
}
bool supportsConstantValues() const override { return true; }
std::optional<double> getConstantValue(int n) const override;
private:
using INHERITED = SingleArgumentConstructor;
};
} // namespace SkSL
#endif