| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_TYPEREFERENCE |
| #define SKSL_TYPEREFERENCE |
| |
| #include "include/private/SkSLIRNode.h" |
| #include "include/sksl/SkSLPosition.h" |
| #include "src/sksl/SkSLBuiltinTypes.h" |
| #include "src/sksl/SkSLContext.h" |
| #include "src/sksl/ir/SkSLExpression.h" |
| #include "src/sksl/ir/SkSLType.h" |
| |
| #include <cstdint> |
| #include <memory> |
| #include <string> |
| |
| namespace SkSL { |
| |
| enum class OperatorPrecedence : uint8_t; |
| |
| /** |
| * Represents an identifier referring to a type. This is an intermediate value: TypeReferences are |
| * always eventually replaced by Constructors in valid programs. |
| */ |
| class TypeReference final : public Expression { |
| public: |
| inline static constexpr Kind kIRNodeKind = Kind::kTypeReference; |
| |
| TypeReference(const Context& context, Position pos, const Type* value) |
| : TypeReference(pos, value, context.fTypes.fInvalid.get()) {} |
| |
| // Creates a reference to an SkSL type; uses the ErrorReporter to report errors. |
| static std::unique_ptr<TypeReference> Convert(const Context& context, |
| Position pos, |
| const Type* type); |
| |
| // Creates a reference to an SkSL type; reports errors via ASSERT. |
| static std::unique_ptr<TypeReference> Make(const Context& context, Position pos, |
| const Type* type); |
| |
| const Type& value() const { |
| return fValue; |
| } |
| |
| std::string description(OperatorPrecedence) const override { |
| return std::string(this->value().name()); |
| } |
| |
| std::unique_ptr<Expression> clone(Position pos) const override { |
| return std::unique_ptr<Expression>(new TypeReference(pos, &this->value(), &this->type())); |
| } |
| |
| private: |
| TypeReference(Position pos, const Type* value, const Type* type) |
| : INHERITED(pos, kIRNodeKind, type) |
| , fValue(*value) {} |
| |
| const Type& fValue; |
| |
| using INHERITED = Expression; |
| }; |
| |
| } // namespace SkSL |
| |
| #endif |