Add sync method to advance parser & update tests (all passing).

XmppSharp.Test/ParserTests.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Runtime.CompilerServices;
+using System.Security.Cryptography;
 using XmppSharp.Dom;
 
 namespace XmppSharp.Test;
@@ -38,7 +39,7 @@ internal static async Task<Element> ParseFromBuffer([StringSyntax("Xml")] string
 				{
 					await Task.Delay(1);
 
-					var result = await parser.Advance();
+					var result = await parser;
 
 					if (!result)
 						break;
@@ -158,4 +159,33 @@ public async Task ParseWithCommentAndCdataAndText()
 
 		PrintResult(elem);
 	}
+
+	[TestMethod]
+	public async Task TestWithFactory()
+	{
+		using var ms = new MemoryStream();
+		await ms.WriteAsync("<foo xmlns='bar'><baz/></foo>".GetBytes());
+		ms.Position = 0;
+
+		using var parser = new XmppParser(() => ms);
+
+		Element el = default!;
+
+		parser.OnStreamElement += e =>
+		{
+			el = e;
+			return Task.CompletedTask;
+		};
+
+		while (el == null && await parser)
+		{
+			Console.WriteLine("parser::advance(): true");
+			await Task.Delay(1);
+		}
+
+		Console.WriteLine("parser::advance(): false");
+		Console.WriteLine(el);
+
+		Console.WriteLine("XML:\n" + el!.ToString(XmlFormatting.Indented));
+	}
 }

XmppSharp/Utilities.cs

@@ -1,4 +1,5 @@
-using System.Text;
+using System.Runtime.CompilerServices;
+using System.Text;
 
 namespace XmppSharp;
 
@@ -29,6 +30,9 @@ public static string ToHex(this byte[] bytes, bool lowercase = true)
 		return result.ToLowerInvariant();
 	}
 
+	public static TaskAwaiter<bool> GetAwaiter(this XmppParser parser)
+		=> parser.AdvanceAsync().GetAwaiter();
+
 	public static byte[] FromHex(this string str)
 		=> Convert.FromHexString(str);
 

XmppSharp/XmppParser.cs

@@ -1,4 +1,5 @@
-using System.Text;
+using System.Runtime.CompilerServices;
+using System.Text;
 using System.Xml;
 using System.Xml.Schema;
 using XmppSharp.Exceptions;
@@ -171,7 +172,10 @@ public int Depth
 		}
 	}
 
-	public async Task<bool> Advance()
+	public bool Advance()
+		=> AdvanceAsync().GetAwaiter().GetResult();
+
+	public async Task<bool> AdvanceAsync()
 	{
 		if (this._disposed)
 			return false;