Adding a new example of synthetic children provider

llvm-svn: 152970

1 files changed, 74 insertions, 0 deletions

diff --git a/lldb/examples/synthetic/bitfield/program.cpp b/lldb/examples/synthetic/bitfield/program.cpp
new file mode 100644
index 00000000000..5276824a2fb
--- /dev/null
+++ b/lldb/examples/synthetic/bitfield/program.cpp
@@ -0,0 +1,74 @@
+typedef unsigned int uint32_t;
+
+enum MaskingOperator
+{
+	eMaskingOperatorDefault = 0,
+	eMaskingOperatorAnd = 1,
+	eMaskingOperatorOr = 2,
+	eMaskingOperatorXor = 3,
+	eMaskingOperatorNand = 4,
+	eMaskingOperatorNor = 5
+};
+
+class MaskedData
+{
+private:
+	uint32_t value;
+	uint32_t mask;
+	MaskingOperator oper;
+public:
+	MaskedData( uint32_t V = 0,
+				uint32_t M = 0,
+				MaskingOperator P = eMaskingOperatorDefault) :
+		value(V),
+		mask(M),
+		oper(P)
+	{
+	}
+		
+	uint32_t apply()
+	{
+		switch(oper)
+		{
+			case eMaskingOperatorAnd:
+				return value & mask;
+			case eMaskingOperatorOr:
+				return value | mask;
+			case eMaskingOperatorXor:
+				return value ^ mask;
+			case eMaskingOperatorNand:
+				return ~(value & mask);
+			case eMaskingOperatorNor:
+				return ~(value | mask);
+			case eMaskingOperatorDefault: // fall through
+			default:
+				return value;
+		}
+	}
+	
+	void setValue(uint32_t V)
+	{
+		value = V;
+	}
+	
+	void setMask (uint32_t M)
+	{
+		mask = M;
+	}
+	
+	void setOperator(MaskingOperator P)
+	{
+		oper = P;
+	}	
+};
+
+int main()
+{
+	MaskedData data_1(0xFF0F,0xA01F,eMaskingOperatorAnd);
+	MaskedData data_2(data_1.apply(),0x1AFC,eMaskingOperatorXor);
+	MaskedData data_3(data_2.apply(),0xFFCF,eMaskingOperatorOr);
+	MaskedData data_4(data_3.apply(),0xAABC,eMaskingOperatorAnd);
+	MaskedData data_5(data_4.apply(),0xFFAC,eMaskingOperatorNor);
+	MaskedData data_6(data_5.apply(),0x0000BEEF,eMaskingOperatorAnd);
+	return data_6.apply(); // <-- what comes out of here?
+}
\ No newline at end of file