added createing FunctionType from ArrayType VariableDeclaration

added test

libsolidity/ExpressionCompiler.cpp

@@ -71,16 +71,20 @@ void ExpressionCompiler::appendStateVariableAccessor(VariableDeclaration const&
 	m_context << location.first;
 
 	TypePointer returnType = _varDecl.getType();
-	for (TypePointer const& paramType: paramTypes)
+	if (ArrayType const* arrayType = dynamic_cast<ArrayType const*>(returnType.get()))
 	{
-		// move offset to memory
-		CompilerUtils(m_context).storeInMemory(length);
-		unsigned argLen = paramType->getCalldataEncodedSize();
-		length -= argLen;
-		m_context << u256(argLen + 32) << u256(length) << eth::Instruction::SHA3;
+		(void)arrayType;
+	} else
+		for (TypePointer const& paramType: paramTypes)
+		{
+			// move offset to memory
+			CompilerUtils(m_context).storeInMemory(length);
+			unsigned argLen = paramType->getCalldataEncodedSize();
+			length -= argLen;
+			m_context << u256(argLen + 32) << u256(length) << eth::Instruction::SHA3;
 
-		returnType = dynamic_cast<MappingType const&>(*returnType).getValueType();
-	}
+			returnType = dynamic_cast<MappingType const&>(*returnType).getValueType();
+		}
 
 	unsigned retSizeOnStack = 0;
 	solAssert(accessorType.getReturnParameterTypes().size() >= 1, "");

libsolidity/Types.cpp

@@ -1002,12 +1002,17 @@ FunctionType::FunctionType(VariableDeclaration const& _varDecl):
 				retParamNames.push_back(member.first);
 				retParams.push_back(member.second);
 			}
-	}
-	else
-	{
-		retParams.push_back(returnType);
-		retParamNames.push_back("");
-	}
+	} else
+		if (auto arrayType = dynamic_cast<ArrayType const*>(returnType.get()))
+		{
+			params.push_back(make_shared<IntegerType>(256));
+			paramNames.push_back("");
+			returnType = arrayType->getBaseType();
+		} else
+		{
+			retParams.push_back(returnType);
+			retParamNames.push_back("");
+		}
 
 	swap(params, m_parameterTypes);
 	swap(paramNames, m_parameterNames);

test/SolidityEndToEndTest.cpp

@@ -966,6 +966,19 @@ BOOST_AUTO_TEST_CASE(simple_accessor)
 	BOOST_CHECK(callContractFunction("data()") == encodeArgs(8));
 }
 
+BOOST_AUTO_TEST_CASE(array_accessor)
+{
+	char const* sourceCode = R"(
+		 contract test {
+		   uint[8] datas;
+		   function test() {
+			 datas[2] = 8;
+		   }
+		 })";
+	compileAndRun(sourceCode);
+	BOOST_CHECK(callContractFunction("data(2)") == encodeArgs(8));
+}
+
 BOOST_AUTO_TEST_CASE(multiple_elementary_accessors)
 {
 	char const* sourceCode = "contract test {\n"