added check on members field in the examples.

inspect-interface/src/main.ts

@@ -13,10 +13,12 @@ class MyClass {
     field: Date;
 }
 
-for (let member of MyInterface.members) {
-    let memberDescription = `Member ${member.name} is ${member.type.kind}`;
-    if (member.type.kind === 'interface' || member.type.kind === 'class') {
-        memberDescription += ' - name: ' + (<NamedType>member.type).name;
+if (MyInterface.members) { // members may be undefined if there are no members.
+    for (let member of MyInterface.members) {
+        let memberDescription = `Member ${member.name} is ${member.type.kind}`;
+        if (member.type.kind === 'interface' || member.type.kind === 'class') {
+            memberDescription += ' - name: ' + (<NamedType>member.type).name;
+        }
+        console.log(memberDescription);
     }
-    console.log(memberDescription);
 }

json-unmarshalling/src/unmarshaller.ts

@@ -14,6 +14,10 @@ function convert(obj: any, targetClass: Class) {
     // since recursion will take care of the deep copy.
     Object.setPrototypeOf(obj, targetClass.getConstructor().prototype);
 
+    if (!targetClass.members) {
+        return; // current class has no members.
+    }
+
     // get all fields of targetClass that are classes or reference to types that may be arrays.
     let fields = targetClass.members.filter(m => m.type.kind === "class" || m.type.kind === "array");
 

simple-validator/src/validator.ts

@@ -2,18 +2,19 @@
 // check if an object matches an interface, recursively.
 export function isValid(object: any, interfaceObj: Interface): boolean {
 
-    for (let member of interfaceObj.members) {
-        if (isPrimitive(member.type) && object[member.name] != null && member.type.kind != typeof object[member.name]) {
-            // found a primitive type field in the interface, but not in the object
-            console.log(`Field ${member.name} should be ${member.type.kind} but it is ${typeof object[member.name]}`)
-            return false;
-        } else if (member.type.kind === 'interface' && object[member.name] != null) {
-            // recursively check field type against the corresponding interface
-            return isValid(object[member.name], <Interface>member.type);
+    if (interfaceObj.members) { // members may be undefined if there are no members.
+        for (let member of interfaceObj.members) {
+            if (isPrimitive(member.type) && object[member.name] != null && member.type.kind != typeof object[member.name]) {
+                // found a primitive type field in the interface, but not in the object
+                console.log(`Field ${member.name} should be ${member.type.kind} but it is ${typeof object[member.name]}`)
+                return false;
+            } else if (member.type.kind === 'interface' && object[member.name] != null) {
+                // recursively check field type against the corresponding interface
+                return isValid(object[member.name], <Interface>member.type);
+            }
+            // TODO: check class types...
         }
-        // TODO: check class types...
     }
-
     return true;
 }