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_STATEMENT 9 #define SKSL_STATEMENT 10 11 #include "src/sksl/ir/SkSLIRNode.h" 12 #include "src/sksl/ir/SkSLType.h" 13 14 namespace SkSL { 15 16 /** 17 * Abstract supertype of all statements. 18 */ 19 struct Statement : public IRNode { 20 enum Kind { 21 kBlock_Kind, 22 kBreak_Kind, 23 kContinue_Kind, 24 kDiscard_Kind, 25 kDo_Kind, 26 kExpression_Kind, 27 kFor_Kind, 28 kGroup_Kind, 29 kIf_Kind, 30 kNop_Kind, 31 kReturn_Kind, 32 kSwitch_Kind, 33 kVarDeclaration_Kind, 34 kVarDeclarations_Kind, 35 kWhile_Kind 36 }; 37 StatementStatement38 Statement(int offset, Kind kind) 39 : INHERITED(offset) 40 , fKind(kind) {} 41 isEmptyStatement42 virtual bool isEmpty() const { 43 return false; 44 } 45 46 virtual std::unique_ptr<Statement> clone() const = 0; 47 48 const Kind fKind; 49 50 typedef IRNode INHERITED; 51 }; 52 53 } // namespace 54 55 #endif 56