Turn on nullable checks for parse project

NHSE.Parsing/MSBT/LBL1.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 namespace NHSE.Parsing
 {
@@ -8,5 +9,9 @@ public class LBL1 : MSBTSection
 
         public readonly List<MSBTGroup> Groups = new List<MSBTGroup>();
         public readonly List<MSBTLabel> Labels = new List<MSBTLabel>();
+
+        public LBL1() : base(string.Empty, Array.Empty<byte>())
+        {
+        }
     }
-}
+}

NHSE.Parsing/MSBT/MSBT.cs

@@ -75,9 +75,10 @@ private void ReadLBL1(BinaryReaderX br)
 
 				for (int i = 0; i < grp.NumberOfLabels; i++)
 				{
-                    MSBTLabel lbl = new MSBTLabel {Length = Convert.ToUInt32(br.ReadByte())};
-                    lbl.Name = br.ReadString((int)lbl.Length);
-					lbl.Index = br.ReadUInt32();
+                    var length = Convert.ToUInt32(br.ReadByte());
+					var name = br.ReadString((int)length);
+					var index = br.ReadUInt32();
+                    var lbl = new MSBTLabel(name) {Index = index, Length = length};
 					LBL1.Labels.Add(lbl);
 				}
 			}

NHSE.Parsing/MSBT/MSBTLabel.cs

@@ -5,9 +5,15 @@ namespace NHSE.Parsing
     public class MSBTLabel
     {
         public uint Length;
-        public string Name;
+        public readonly string Name;
         public MSBTTextString String;
 
+        public MSBTLabel(string name)
+        {
+            Name = name;
+            String = MSBTTextString.Empty;
+        }
+
         public uint Index { get; set; }
         public override string ToString() => Length > 0 ? Name : (Index + 1).ToString();
         public string ToString(Encoding encoding) => encoding.GetString(String.Value);

NHSE.Parsing/MSBT/MSBTSection.cs

@@ -5,5 +5,11 @@ public class MSBTSection
         public string Identifier;
         public uint SectionSize; // Begins after Unknown1
         public byte[] Padding1; // Always 0x0000 0000
+
+        public MSBTSection(string identifier, byte[] padding)
+        {
+            Identifier = identifier;
+            Padding1 = padding;
+        }
     }
-}
+}

NHSE.Parsing/MSBT/MSBTTextString.cs

@@ -1,4 +1,5 @@
-using System.Text;
+using System;
+using System.Text;
 
 namespace NHSE.Parsing
 {
@@ -7,6 +8,8 @@ public class MSBTTextString
         public readonly byte[] Value;
         public readonly uint Index;
 
+        public static readonly MSBTTextString Empty = new MSBTTextString(Array.Empty<byte>(), 0);
+
         public MSBTTextString(byte[] v, uint i)
         {
             Value = v;

NHSE.Parsing/MSBT/TXT2.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 namespace NHSE.Parsing
 {
@@ -7,5 +8,9 @@ public class TXT2 : MSBTSection
         public uint NumberOfStrings;
 
         public readonly List<MSBTTextString> Strings = new List<MSBTTextString>();
+
+        public TXT2() : base(string.Empty, Array.Empty<byte>())
+        {
+        }
     }
-}
+}

NHSE.Parsing/NHSE.Parsing.csproj

@@ -3,6 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <LangVersion>8</LangVersion>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>