added anonymous structure check

Author: adireddy

checkstyle/checks/AnonymousCheck.hx

@@ -0,0 +1,45 @@
+package checkstyle.checks;
+
+import checkstyle.LintMessage.SeverityLevel;
+import haxeparser.Data;
+import haxe.macro.Expr;
+
+@name("Anonymous")
+@desc("Anonymous type structures check")
+class AnonymousCheck extends Check {
+
+	public var severity:String = "ERROR";
+
+	override function actualRun() {
+		checkClassFields();
+		checkLocalVars();
+	}
+
+	function checkClassFields() {
+		for (td in _checker.ast.decls) {
+			switch (td.decl){
+				case EClass(d):
+					for (field in d.data) if (field.name != "new") checkField(field);
+				default:
+			}
+		}
+	}
+
+	function checkField(f:Field) {
+		if (Std.string(f.kind).indexOf("TAnonymous") > -1) _error(f.name, f.pos);
+	}
+
+	function checkLocalVars() {
+		ExprUtils.walkFile(_checker.ast, function(e) {
+			switch(e.expr){
+				case EVars(vars):
+					for (v in vars) if (Std.string(v).indexOf("TAnonymous") > -1) _error(v.name, e.pos);
+				default:
+			}
+		});
+	}
+
+	function _error(name:String, pos:Position) {
+		logPos('Anonymous structure found, it is advised to use a typedef instead \"${name}\"', pos, Reflect.field(SeverityLevel, severity));
+	}
+}

run.n

@@ -0,0 +1,16 @@
+package ;
+
+class AnonymousCheckTest {
+
+	var _anonymous:{a:Int, b:Int};
+
+	public function new() {
+		var b:{a:Int, b:Int};
+		_anonymous = {a: 2, b: 5};
+	}
+}
+
+typedef SettingsBucket = {
+	var width:Float;
+	var height:Float;
+}

test/AnonymousCheckTest.hx

@@ -1,5 +1,11 @@
 {
 	"checks": [
+		{
+			"type": "Anonymous",
+			"props": {
+				"severity": "ERROR"
+			}
+		},
 		{
 			"type": "ArrayInstantiation",
 			"props": {