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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_ASTEXPRESSION
      9 #define SKSL_ASTEXPRESSION
     10 
     11 #include "SkSLASTPositionNode.h"
     12 
     13 namespace SkSL {
     14 
     15 /**
     16  * Abstract supertype of all expressions.
     17  */
     18 struct ASTExpression : public ASTPositionNode {
     19     enum Kind {
     20         kBinary_Kind,
     21         kBool_Kind,
     22         kFloat_Kind,
     23         kIdentifier_Kind,
     24         kInt_Kind,
     25         kNull_Kind,
     26         kPrefix_Kind,
     27         kSuffix_Kind,
     28         kTernary_Kind
     29     };
     30 
     31     ASTExpression(int offset, Kind kind)
     32     : INHERITED(offset)
     33     , fKind(kind) {}
     34 
     35     const Kind fKind;
     36 
     37     typedef ASTPositionNode INHERITED;
     38 };
     39 
     40 } // namespace
     41 
     42 #endif
     43