fix macro fail when type is null

src/hex/log/LoggableBuilder.hx

@@ -43,12 +43,12 @@ class LoggableBuilder
 
 		var isLogger = function(t:ComplexType):Bool
 		{
-			return switch(t)
+			return (t == null) ? false : switch(t)
 			{
 				case macro :ILogger: true;
 				case macro :hex.log.ILogger: true;
 				case _: false;
-			}
+			};
 		}
 
 		var tryLoggerName = function(f:{name:String, pos:Position})

test/hex/log/ExtendedMockLoggableClass.hx

@@ -70,3 +70,17 @@ class ExtendsLoggableAndOverridesLogger extends MockLoggableClassWithCustomLogge
 
 	}
 }
+
+class ClassWithVariableWithoutType implements IsLoggable
+{
+	var unknown = "unknown";
+
+	public function new() 
+	{
+	}
+}
+
+class ClassThatExtendsClassWithVariableWithoutType extends ClassWithVariableWithoutType implements IsLoggable
+{
+
+}

test/hex/log/IsLoggableExtendsAndCustomCasesTest.hx

@@ -1,6 +1,8 @@
 package hex.log;
 
 import hex.log.ExtendedMockLoggableClass.AnotherExtendedMockLoggableClass;
+import hex.log.ExtendedMockLoggableClass.ClassThatExtendsClassWithVariableWithoutType;
+import hex.log.ExtendedMockLoggableClass.ClassWithVariableWithoutType;
 import hex.log.ExtendedMockLoggableClass.ExtendsLoggableAndOverridesLogger;
 import hex.log.ExtendedMockLoggableClass.ExtendsLoggableWithCustomLogger;
 import hex.log.ExtendedMockLoggableClass.MockLoggableClassWithCustomLogger;
@@ -112,5 +114,22 @@ class IsLoggableExtendsAndCustomCasesTest
 		Assert.equals(message, logger.debugMsg);
 	}
 
+	@Test("Test class with variable without type")
+	public function testClassWithVariableWithoutType()
+	{
+		var type = new ClassWithVariableWithoutType();
+
+		// This only needs to compile, functionality is tested in other tests
+		Assert.isNull(type.logger);
+	}
+
+	@Test("Test class that extends class with variable without type")
+	public function testClassThatExtendsClassWithVariableWithoutType()
+	{
+		var type = new ClassThatExtendsClassWithVariableWithoutType();
+
+		// This only needs to compile, functionality is tested in other tests
+		Assert.isNull(type.logger);
+	}
 
 }