ReadMember() public method

Reads a member with a given (case-sensitive) name and returns a JsonReader that can be used to read the value. Otherwise it throws an exception.
The caller should not use the returned JsonReader instance for any other purpose but reading the value. It is possible that this method will return the same instance as BaseReader or a separate instance.
/// A member with the requested name was not found. ///
public ReadMember ( string name ) : Jayrock.Json.JsonReader
name string
return Jayrock.Json.JsonReader
FreeJsonMemberReadingHelper Class Documentation
コード例 #1
0
        public void OrderedReading()
        {
            FreeJsonMemberReadingHelper helper = CreateHelper(@"{ x: 123, y: 456, z: 789 }");

            Assert.AreEqual(123, helper.ReadMember("x").ReadNumber().ToInt32());
            Assert.AreEqual(456, helper.ReadMember("y").ReadNumber().ToInt32());
            Assert.AreEqual(789, helper.ReadMember("z").ReadNumber().ToInt32());
            Assert.AreEqual(JsonTokenClass.EndObject, helper.BaseReader.TokenClass);
        }
コード例 #2
0
        public void EmptyTailReading()
        {
            FreeJsonMemberReadingHelper helper = CreateHelper(@"{ y: 456, x: 123, z: 789 }");

            Assert.AreEqual(123, helper.ReadMember("x").ReadNumber().ToInt32());
            Assert.AreEqual(456, helper.ReadMember("y").ReadNumber().ToInt32());
            Assert.AreEqual(789, helper.ReadMember("z").ReadNumber().ToInt32());
            JsonReader tail = helper.GetTailReader();

            tail.ReadToken(JsonTokenClass.EndObject);
            Assert.IsFalse(tail.Read());
        }
コード例 #3
0
        public void TailMemberAfterUnorderedReader()
        {
            FreeJsonMemberReadingHelper helper = CreateHelper(@"
                { y: 456, x: 123, z: 789, comment: tail }");

            Assert.AreEqual(123, helper.ReadMember("x").ReadNumber().ToInt32());
            Assert.AreEqual(456, helper.ReadMember("y").ReadNumber().ToInt32());
            Assert.AreEqual(789, helper.ReadMember("z").ReadNumber().ToInt32());
            JsonReader reader = helper.BaseReader;

            Assert.AreEqual("comment", reader.ReadMember());
            Assert.AreEqual("tail", reader.ReadString());
        }
コード例 #4
0
        public void ReadingSameMemberMoreThanOnce()
        {
            FreeJsonMemberReadingHelper helper = CreateHelper("{foo:bar}");

            helper.ReadMember("foo").Skip();
            Assert.IsNull(helper.TryReadMember("foo"));
        }
コード例 #5
0
        public void TailReading()
        {
            FreeJsonMemberReadingHelper helper = CreateHelper(@"
                { y: 456, 
                  x: 123, 
                  z: 789, 
                  obj1: { foo: bar }, 
                  comment: null, 
                  arr: [ 123, 456, 789 ],
                  obj2: { a: 1, b: 2, }, }");

            Assert.AreEqual(123, helper.ReadMember("x").ReadNumber().ToInt32());
            helper.ReadMember("comment").ReadNull();
            JsonReader reader = helper.BaseReader;

            Assert.AreEqual(JsonTokenClass.Member, reader.TokenClass);
            Assert.AreEqual("arr", reader.Text);
            JsonReader tail = helper.GetTailReader();

            Assert.AreEqual("y", tail.ReadMember());
            Assert.AreEqual(456, tail.ReadNumber().ToInt32());
            Assert.AreEqual("z", tail.ReadMember());
            Assert.AreEqual(789, tail.ReadNumber().ToInt32());
            Assert.AreEqual("obj1", tail.ReadMember());
            tail.ReadToken(JsonTokenClass.Object);
            Assert.AreEqual("foo", tail.ReadMember());
            Assert.AreEqual("bar", tail.ReadString());
            tail.ReadToken(JsonTokenClass.EndObject);
            Assert.AreEqual("arr", tail.ReadMember());
            tail.ReadToken(JsonTokenClass.Array);
            Assert.AreEqual(123, tail.ReadNumber().ToInt32());
            Assert.AreEqual(456, tail.ReadNumber().ToInt32());
            Assert.AreEqual(789, tail.ReadNumber().ToInt32());
            tail.ReadToken(JsonTokenClass.EndArray);
            Assert.AreEqual("obj2", tail.ReadMember());
            tail.StepOut();
            Assert.IsFalse(reader.Read());
        }
コード例 #6
0
        public void CannotReadNonExistingMember()
        {
            FreeJsonMemberReadingHelper helper = CreateHelper(@"{ y: 456, x: 123, z: 789 }");

            helper.ReadMember("foo");
        }