Implemented structs

src/core/CompileAssign.go

@@ -26,6 +26,10 @@ func (f *Function) CompileAssign(node *ast.Assign) error {
 		return f.Execute(operator, variable.Register, right)
 	}
 
+	if left.Token.Kind == token.Period {
+		return f.CompileAssignField(node)
+	}
+
 	if left.Token.Kind == token.Array {
 		return f.CompileAssignArray(node)
 	}