internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Type keyType = type.GetGenericArguments()[0];
Type valueType = type.GetGenericArguments()[1];
List <Expression> methodCall = new List <Expression>();
if (!type.IsValueType)
{
ConditionalExpression ifNullAppendNull = Expression.IfThen(
Expression.Equal(instanceArg, Expression.Constant(null, type)),
Expression.Block(ExpressionMembers.Append("null"),
Expression.Return(ExpressionMembers.ReturnLable)
));
methodCall.Add(ifNullAppendNull);
}
methodCall.Add(ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.Dictionary));
methodCall.Add(ExpressionMembers.Append("{"));
ParameterExpression isFirst = Expression.Variable(typeof(bool), "isFirst");
Expression foreachs = ExpressionHelper.ForEach(instanceArg, Expression.Parameter(typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType), "loopVar"),
item =>
{
List <Expression> calls = new List <Expression>
{
Expression.IfThenElse(
Expression.IsFalse(isFirst),
Expression.Assign(isFirst, Expression.Constant(true)),
ExpressionMembers.Append(",")
)
};
MemberExpression key = Expression.MakeMemberAccess(item, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Key"));
MemberExpression value = Expression.MakeMemberAccess(item, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Value"));
calls.Add(ExpressionMembers.WriteKeyValuePairKey(keyType, key));
calls.Add(ExpressionMembers.GetMethodCall(valueType, value));
return(Expression.Block(new[] { isFirst }, calls));
}
);
methodCall.Add(foreachs);
methodCall.Add(ExpressionMembers.Append("}"));
methodCall.Add(ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop);
methodCall.Add(Expression.Label(ExpressionMembers.ReturnLable));
return(Expression.Block(methodCall));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Type keyType = type.GetGenericArguments()[0];
Type valueType = type.GetGenericArguments()[1];
Expression[] methodCall = new Expression[7];
methodCall[0] = ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.Dictionary);
methodCall[1] = ExpressionMembers.Append("{");
MemberExpression key = Expression.MakeMemberAccess(instanceArg, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Key"));
MemberExpression value = Expression.MakeMemberAccess(instanceArg, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Value"));
methodCall[2] = ExpressionMembers.WriteKeyValuePairKey(keyType, key);
methodCall[3] = ExpressionMembers.GetMethodCall(valueType, value);
methodCall[4] = ExpressionMembers.Append("}");
methodCall[5] = ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop;
methodCall[6] = Expression.Label(ExpressionMembers.ReturnLable);
return(Expression.Block(methodCall));
}