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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.
#include "src/sksl/SkSLContext.h"
#include "src/sksl/ir/SkSLConstructor.h"
#include "src/sksl/ir/SkSLExpression.h"
#include <memory>
namespace SkSL {
* 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 {
inline static constexpr Kind kExpressionKind = Kind::kConstructorArrayCast;
ConstructorArrayCast(Position pos, const Type& type, std::unique_ptr<Expression> arg)
: INHERITED(pos, kExpressionKind, &type, std::move(arg)) {}
static std::unique_ptr<Expression> Make(const Context& context,
Position pos,
const Type& type,
std::unique_ptr<Expression> arg);
bool isCompileTimeConstant() const override {
// If this were a compile-time constant, we would have made a ConstructorArray instead.
return false;
std::unique_ptr<Expression> clone(Position pos) const override {
return std::make_unique<ConstructorArrayCast>(pos, this->type(), argument()->clone());
using INHERITED = SingleArgumentConstructor;
} // namespace SkSL