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      1 /*
      2  * Copyright 2016 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #ifndef SKSL_RETURNSTATEMENT
      9 #define SKSL_RETURNSTATEMENT
     10 
     11 #include "SkSLExpression.h"
     12 #include "SkSLStatement.h"
     13 
     14 namespace SkSL {
     15 
     16 /**
     17  * A 'return' statement.
     18  */
     19 struct ReturnStatement : public Statement {
     20     ReturnStatement(int offset)
     21     : INHERITED(offset, kReturn_Kind) {}
     22 
     23     ReturnStatement(std::unique_ptr<Expression> expression)
     24     : INHERITED(expression->fOffset, kReturn_Kind)
     25     , fExpression(std::move(expression)) {}
     26 
     27     std::unique_ptr<Statement> clone() const override {
     28         if (fExpression) {
     29             return std::unique_ptr<Statement>(new ReturnStatement(fExpression->clone()));
     30         }
     31         return std::unique_ptr<Statement>(new ReturnStatement(fOffset));
     32     }
     33 
     34     String description() const override {
     35         if (fExpression) {
     36             return "return " + fExpression->description() + ";";
     37         } else {
     38             return String("return;");
     39         }
     40     }
     41 
     42     std::unique_ptr<Expression> fExpression;
     43 
     44     typedef Statement INHERITED;
     45 };
     46 
     47 } // namespace
     48 
     49 #endif
     50