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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_ARRAY_CAST
#define SKSL_CONSTRUCTOR_ARRAY_CAST
#include "include/private/SkSLIRNode.h"
#include "include/sksl/SkSLPosition.h"
#include "src/sksl/ir/SkSLConstructor.h"
#include "src/sksl/ir/SkSLExpression.h"
#include <memory>
#include <utility>
namespace SkSL {
class Context;
class Type;
/**
* Represents the typecasting of an array. Arrays cannot be directly casted in SkSL (or GLSL), but
* type narrowing can cause an array to be implicitly casted. For instance, the expression
* `myHalf2Array == float[2](a, b)` should be allowed when narrowing conversions are enabled; this
* constructor allows the necessary array-type conversion to be represented in IR.
*
* These always contain exactly 1 array of matching size, and are never constant.
*/
class ConstructorArrayCast final : public SingleArgumentConstructor {
public:
inline static constexpr Kind kIRNodeKind = Kind::kConstructorArrayCast;
ConstructorArrayCast(Position pos, const Type& type, std::unique_ptr<Expression> arg)
: INHERITED(pos, kIRNodeKind, &type, std::move(arg)) {}
static std::unique_ptr<Expression> Make(const Context& context,
Position pos,
const Type& type,
std::unique_ptr<Expression> arg);
std::unique_ptr<Expression> clone(Position pos) const override {
return std::make_unique<ConstructorArrayCast>(pos, this->type(), argument()->clone());
}
private:
using INHERITED = SingleArgumentConstructor;
};
} // namespace SkSL
#endif
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