| /* |
| * 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_POSTFIXEXPRESSION |
| #define SKSL_POSTFIXEXPRESSION |
| |
| #include "include/private/SkSLIRNode.h" |
| #include "include/sksl/SkSLOperator.h" |
| #include "include/sksl/SkSLPosition.h" |
| #include "src/sksl/ir/SkSLExpression.h" |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| namespace SkSL { |
| |
| class Context; |
| |
| /** |
| * An expression modified by a unary operator appearing after it, such as 'i++'. |
| */ |
| class PostfixExpression final : public Expression { |
| public: |
| inline static constexpr Kind kIRNodeKind = Kind::kPostfix; |
| |
| PostfixExpression(Position pos, std::unique_ptr<Expression> operand, Operator op) |
| : INHERITED(pos, kIRNodeKind, &operand->type()) |
| , fOperand(std::move(operand)) |
| , fOperator(op) {} |
| |
| // Creates an SkSL postfix expression; uses the ErrorReporter to report errors. |
| static std::unique_ptr<Expression> Convert(const Context& context, |
| Position pos, |
| std::unique_ptr<Expression> base, |
| Operator op); |
| |
| // Creates an SkSL postfix expression; reports errors via ASSERT. |
| static std::unique_ptr<Expression> Make(const Context& context, |
| Position pos, |
| std::unique_ptr<Expression> base, |
| Operator op); |
| |
| Operator getOperator() const { |
| return fOperator; |
| } |
| |
| std::unique_ptr<Expression>& operand() { |
| return fOperand; |
| } |
| |
| const std::unique_ptr<Expression>& operand() const { |
| return fOperand; |
| } |
| |
| std::unique_ptr<Expression> clone(Position pos) const override { |
| return std::make_unique<PostfixExpression>(pos, this->operand()->clone(), |
| this->getOperator()); |
| } |
| |
| std::string description(OperatorPrecedence parentPrecedence) const override; |
| |
| private: |
| std::unique_ptr<Expression> fOperand; |
| Operator fOperator; |
| |
| using INHERITED = Expression; |
| }; |
| |
| } // namespace SkSL |
| |
| #endif |