Direct auto-prop inc/dec fix

IDEHelper/Compiler/BfExprEvaluator.cpp

@@ -21396,6 +21396,22 @@ void BfExprEvaluator::PerformUnaryOperation_OnResult(BfExpression* unaryOpExpr,
 		}
 	}
 
+	switch (unaryOp)
+	{
+	case BfUnaryOp_PostIncrement:
+	case BfUnaryOp_Increment:
+	case BfUnaryOp_PostDecrement:
+	case BfUnaryOp_Decrement:
+		{
+			if (mResult.mKind == BfTypedValueKind_CopyOnMutateAddr)
+			{
+				// Support this ops on direct auto-property access without a copy
+				mResult.mKind = BfTypedValueKind_Addr;
+			}
+		}
+		break;
+	}
+
 	bool numericFail = false;
 	switch (unaryOp)
 	{
@@ -21579,7 +21595,7 @@ void BfExprEvaluator::PerformUnaryOperation_OnResult(BfExpression* unaryOpExpr,
 		break;
 	case BfUnaryOp_PostIncrement:			
 	case BfUnaryOp_Increment:		
-		{
+		{			
 			CheckResultForReading(mResult);
 			auto ptr = mResult;
 			//if ((propDef == NULL) && (!mModule->CheckModifyValue(ptr, opToken)))			

IDEHelper/Tests/src/Properties.bf

@@ -10,6 +10,8 @@ namespace Tests
 		{
 			public int mA = 111;
 
+			public static int sAutoProp { get; set; }
+
 			public this()
 			{
 			}
@@ -18,6 +20,17 @@ namespace Tests
 			{
 				mA = a;
 			}
+
+			public static void IncAutoProp()
+			{
+				Test.Assert(sAutoProp == 0);
+				int v = ++sAutoProp;
+				Test.Assert(v == 1);
+				Test.Assert(sAutoProp == 1);
+				int v2 = sAutoProp++;
+				Test.Assert(v == 1);
+				Test.Assert(sAutoProp == 2);
+			}
 		}
 
 		struct StructB
@@ -157,6 +170,13 @@ namespace Tests
 			MethodC(ce);
 			Test.Assert(ce.Val == 999);
 			Test.Assert(MethodD(ce) == 999);
+
+			StructA.IncAutoProp();
+			int ap = ++StructA.sAutoProp;
+			Test.Assert(ap == 3);
+			int ap2 = StructA.sAutoProp++;
+			Test.Assert(ap2 == 3);
+			Test.Assert(StructA.sAutoProp == 4);
 		}
 	}
 }