2012-04-19 14:35:52 +08:00
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#ifndef SkScriptCallBack_DEFINED
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#define SkScriptCallBack_DEFINED
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#include "SkOperand2.h"
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#include "SkTDArray_Experimental.h"
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class SkScriptCallBack {
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public:
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enum Type {
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kBox,
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kFunction,
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kMember,
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kMemberFunction,
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kProperty,
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kUnbox
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};
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virtual bool getReference(const char* , size_t len, SkScriptValue2* result) { return false; }
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virtual SkOperand2::OpType getReturnType(size_t ref, SkOperand2*) {
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return SkOperand2::kS32; }
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virtual Type getType() const = 0;
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};
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class SkScriptCallBackConvert : public SkScriptCallBack {
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public:
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virtual bool convert(SkOperand2::OpType type, SkOperand2* operand) = 0;
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};
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class SkScriptCallBackFunction : public SkScriptCallBack {
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public:
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virtual void getParamTypes(SkIntArray(SkOperand2::OpType)* types) = 0;
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virtual Type getType() const { return kFunction; }
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virtual bool invoke(size_t ref, SkOpArray* params, SkOperand2* value) = 0;
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};
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class SkScriptCallBackMember: public SkScriptCallBack {
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public:
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bool getMemberReference(const char* , size_t len, void* object, SkScriptValue2* ref);
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virtual Type getType() const { return kMember; }
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virtual bool invoke(size_t ref, void* object, SkOperand2* value) = 0;
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};
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class SkScriptCallBackMemberFunction : public SkScriptCallBack {
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public:
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bool getMemberReference(const char* , size_t len, void* object, SkScriptValue2* ref);
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virtual void getParamTypes(SkIntArray(SkOperand2::OpType)* types) = 0;
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virtual Type getType() const { return kMemberFunction; }
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virtual bool invoke(size_t ref, void* object, SkOpArray* params, SkOperand2* value) = 0;
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};
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class SkScriptCallBackProperty : public SkScriptCallBack {
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public:
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virtual bool getConstValue(const char* name, size_t len, SkOperand2* value) { return false; }
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virtual bool getResult(size_t ref, SkOperand2* answer) { return false; }
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virtual Type getType() const { return kProperty; }
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};
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#endif // SkScriptCallBack_DEFINED
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