michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #ifndef SkOperand2_DEFINED
michael@0: #define SkOperand2_DEFINED
michael@0: 
michael@0: #include "SkScalar.h"
michael@0: 
michael@0: class SkOpArray;
michael@0: class SkString;
michael@0: 
michael@0: union SkOperand2 {
michael@0:     enum OpType {
michael@0:         kNoType,
michael@0:         kS32 = 1,
michael@0:         kScalar = 2,
michael@0:         kString = 4,
michael@0:         kArray = 8,
michael@0:         kObject = 16
michael@0:     };
michael@0:     SkOpArray* fArray;
michael@0:     void* fObject;
michael@0:     size_t fReference;
michael@0:     int32_t fS32;
michael@0:     SkScalar fScalar;
michael@0:     SkString* fString;
michael@0: };
michael@0: 
michael@0: struct SkScriptValue2 {
michael@0:     enum IsConstant {
michael@0:         kConstant,
michael@0:         kVariable
michael@0:     };
michael@0:     enum IsWritten {
michael@0:         kUnwritten,
michael@0:         kWritten
michael@0:     };
michael@0:     SkOperand2 fOperand;
michael@0:     SkOperand2::OpType fType : 8;
michael@0:     IsConstant fIsConstant : 8;
michael@0:     IsWritten fIsWritten : 8;
michael@0:     SkOpArray* getArray() { SkASSERT(fType == SkOperand2::kArray); return fOperand.fArray; }
michael@0:     void* getObject() { SkASSERT(fType == SkOperand2::kObject); return fOperand.fObject; }
michael@0:     int32_t getS32() { SkASSERT(fType == SkOperand2::kS32); return fOperand.fS32; }
michael@0:     SkScalar getScalar() { SkASSERT(fType == SkOperand2::kScalar); return fOperand.fScalar; }
michael@0:     SkString* getString() { SkASSERT(fType == SkOperand2::kString); return fOperand.fString; }
michael@0:         bool isConstant() const { return fIsConstant == kConstant; }
michael@0: };
michael@0: 
michael@0: #endif // SkOperand2_DEFINED