[XamlC] TypedBindings, some tests, a compiler, ... (#489)

1 files changed, 76 insertions, 0 deletions

diff --git a/Xamarin.Forms.Build.Tasks/Logger.cs b/Xamarin.Forms.Build.Tasks/Logger.cs
new file mode 100644
index 00000000..b706e610
--- /dev/null
+++ b/Xamarin.Forms.Build.Tasks/Logger.cs
@@ -0,0 +1,76 @@
+using System;
+using System.Xml;
+using Microsoft.Build.Utilities;
+using Xamarin.Forms.Xaml;
+
+namespace Xamarin.Forms.Build.Tasks
+{
+	public class Logger {
+		public TaskLoggingHelper Helper { get; }
+		public int Verbosity { get; }
+
+		public Logger(TaskLoggingHelper helper, int verbosity)
+		{
+			Verbosity = verbosity;
+			Helper = helper;
+		}
+
+		string buffer = "";
+
+		public void LogException(string subcategory, string errorCode, string helpKeyword, string file, Exception e)
+		{
+			var xpe = e as XamlParseException;
+			var xe = e as XmlException;
+			if (xpe != null)
+				LogError(subcategory, errorCode, helpKeyword, file, xpe.XmlInfo.LineNumber, xpe.XmlInfo.LinePosition, 0, 0, xpe.Message, xpe.HelpLink, xpe.Source);
+			else if (xe != null)
+				LogError(subcategory, errorCode, helpKeyword, file, xe.LineNumber, xe.LinePosition, 0, 0, xe.Message, xe.HelpLink, xe.Source);
+			else
+				LogError(subcategory, errorCode, helpKeyword, file, 0, 0, 0, 0, e.Message, e.HelpLink, e.Source);
+		}
+
+		public void LogError(string subcategory, string errorCode, string helpKeyword, string file, int lineNumber,
+			int columnNumber, int endLineNumber, int endColumnNumber, string message, params object [] messageArgs)
+		{
+			if (!string.IsNullOrEmpty(buffer))
+				LogLine(-1, null, null);
+			if (Helper != null) {
+				Helper.LogError(subcategory, errorCode, helpKeyword, file, lineNumber, columnNumber, endLineNumber,
+					endColumnNumber, message, messageArgs);
+			} else
+				Console.Error.WriteLine($"{file} ({lineNumber}:{columnNumber}) : {message}");
+		}
+
+		public void LogLine(int level, string format, params object [] arg)
+		{
+			if (!string.IsNullOrEmpty(buffer)) {
+				format = buffer + format;
+				buffer = "";
+			}
+
+			if (level < 0) {
+				if (Helper != null)
+					Helper.LogError(format, arg);
+				else
+					Console.Error.WriteLine(format, arg);
+			} else if (level <= Verbosity) {
+				if (Helper != null)
+					Helper.LogMessage(format, arg);
+				else
+					Console.WriteLine(format, arg);
+			}
+		}
+
+		public void LogString(int level, string format, params object [] arg)
+		{
+			if (level <= 0)
+				Console.Error.Write(format, arg);
+			else if (level <= Verbosity) {
+				if (Helper != null)
+					buffer += String.Format(format, arg);
+				else
+					Console.Write(format, arg);
+			}
+		}
+	}
+}
\ No newline at end of file