fix warnings in expr binding

src/bindx/Bind.hx

@@ -79,14 +79,19 @@ class Bind {
 		return res;
 	}
 	
-	public static function checkField(field:Expr):{e:Expr, field:ClassField, error:bindx.Error} {
+	public static function checkField(f:Expr):{e:Expr, field:ClassField, error:bindx.Error} {
 		var error:bindx.Error;
-		switch (field.expr) {
+		switch (f.expr) {
 			case EField(e, field):
-				var classType = Context.typeof(e).follow().getClass();
+				var type = Context.typeof(e);
+				var classType = null;
+				switch (type) {
+					case TInst(c, _): classType = c.get();
+					case _:
+				}
 				if (classType == null) {
-					throw new FatalError('Type \'${e.toString()}\' is unknown', e.pos);
-					return null;
+					error = new FatalError('Type \'${e.toString()}\' is unknown', e.pos);
+					return {e:f, field:null, error:error};
 				}
 				if (!isBindable(classType)) {
 					error = new bindx.Error('\'${e.toString()}\' must be bindx.IBindable', e.pos);
@@ -105,11 +110,11 @@ class Bind {
 				return {e:e, field:field, error:error};
 
             case EConst(CIdent(_)):
-            	return {e:field, field:null, error:new bindx.Error('Can\'t bind \'${field.toString()}\'. Please use \'this.${field.toString()}\'', field.pos)};
+            	return {e:f, field:null, error:new bindx.Error('Can\'t bind \'${f.toString()}\'. Please use \'this.${f.toString()}\'', f.pos)};
 
 			case _:
 		}
-		return {e:field, field:null, error:new bindx.Error('Can\'t bind field \'${field.toString()}\'', field.pos)};
+		return {e:f, field:null, error:new bindx.Error('Can\'t bind field \'${f.toString()}\'', f.pos)};
 	}
 	
 	public static function isBindable(classType:ClassType):Bool {

src/bindx/BindxExt.hx

@@ -84,11 +84,11 @@ class BindExt {
             if (e != start) {
                 var pre = '_${prefix++}';
                 var zeroListener = listenerName(0, pre);
-                chain.init.push(macro var $zeroListener = ${ecall ? methodListenerNameExpr : fieldListenerNameExpr});
-                
+
                 var c = null;
                 try { c = warnPrepareChain(start, macro $i{zeroListener}, pre); } catch (e:bindx.Error) { e.contextWarning(); }
                 if (c != null) {
+                    chain.init.push(macro var $zeroListener = ${ecall ? methodListenerNameExpr : fieldListenerNameExpr});
                     chain.init = chain.init.concat(c.init);
                     chain.bind = chain.bind.concat(c.bind);
                     chain.unbind = chain.unbind.concat(c.unbind);
@@ -120,6 +120,8 @@ class BindExt {
     
     static function checkFields(expr:Expr):Array<FieldExpr> {
         var first = Bind.checkField(expr);
+        if (first.field == null || first.error != null) return [];
+        
         var prevField = {e:first.e, field:first.field, error:null};
         var fields:Array<FieldExpr> = [ { field:first.field, bindable:true, e:first.e } ];
         
@@ -132,19 +134,19 @@ class BindExt {
                 switch (prevField.e.expr) {
                     case ECall(e, params):
                         field = Bind.checkField(e);
-                        if (field.field == null) throw new FatalError('Error parse ${e.toString()}.', e.pos);
-                        fields.push( { e:field.e, field:field.field, params:params, bindable:field.error == null } );
+                        if (field.field == null) throw new FatalError('${e.toString()} is not bindable.', expr.pos);
+                        else fields.push( { e:field.e, field:field.field, params:params, bindable:field.error == null } );
                         end = false;
                     case _:
                 }
                 if (end) break;
             }
             else if (field.e == null) {
-                throw new FatalError('Error parse ${prevField.e.toString()}.', prevField.e.pos);
+                throw new FatalError('${prevField.e.toString()} is not bindable.', expr.pos);
             }
             prevField = field;
         }
-        //for (it in fields) trace(printer.printExpr(it.e) + " -> " + it.field.name + (it.params != null ? '(${printer.printExprs(it.params, ",")})' : "") + "   bind:" + it.bindable);
+        
         return fields;
     }
     
@@ -171,6 +173,7 @@ class BindExt {
         if (first != null)
             Context.warning('${expr.toString()} is not full bindable. Can bind only "${first.e.toString()}".', expr.pos);
         
+        //trace(fields);
         return prepareChain(fields, macro listener, expr.pos, prefix);
     }
     
@@ -186,6 +189,7 @@ class BindExt {
         while (++i < fields.length - 1) {
             var field = fields[i + 1];
             var prev = fields[i];
+            trace(prev.field);
             var listenerName = listenerName(i+1, prefix);
             var listenerNameExpr = macro $i { listenerName };
             

test/ExprBindTest.hx

@@ -24,9 +24,9 @@ class ExprBindTest extends BuddySuite {
                 var b = new BaseTest.Bindable1();
                 a.str = "a1";
                 b.str = "b1";
-                inline function val() return a.str + b.str + "ab".charAt(0);
+                inline function val() return a.str + b.str + a.str.charAt(0) + "ab".charAt(0) + Std.string(1);
                 
-                BindExt.expr(a.str + b.str + "ab".charAt(0), function (from, to:String) {
+                BindExt.expr(a.str + b.str + a.str.charAt(0) + "ab".charAt(0) + Std.string(1), function (from, to:String) {
                     to.should.be(val());
                     callNum ++;
                 });