Handel call and construct signatures

Author: mhegazy

src/lib/es5.d.ts

@@ -182,6 +182,18 @@ interface ObjectConstructor {
       */
     freeze<T>(a: T[]): ReadonlyArray<T>;
 
+    /**
+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.
+      * @param o Object on which to lock the attributes.
+      */
+    freeze<T extends (...args: any[]) => any>(f: T): T;
+
+    /**
+      * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.
+      * @param o Object on which to lock the attributes.
+      */
+    freeze<T extends new (...args: any[]) => any>(c: T): T;
+
     /**
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.
       * @param o Object on which to lock the attributes.

tests/baselines/reference/objectFreeze.errors.txt

@@ -1,18 +1,22 @@
-tests/cases/compiler/objectFreeze.ts(5,1): error TS2542: Index signature in type 'ReadonlyArray<number>' only permits reading.
-tests/cases/compiler/objectFreeze.ts(8,3): error TS2540: Cannot assign to 'b' because it is a constant or a read-only property.
+tests/cases/compiler/objectFreeze.ts(9,1): error TS2542: Index signature in type 'ReadonlyArray<number>' only permits reading.
+tests/cases/compiler/objectFreeze.ts(12,3): error TS2540: Cannot assign to 'b' because it is a constant or a read-only property.
 
 
 ==== tests/cases/compiler/objectFreeze.ts (2 errors) ====
     const f = Object.freeze(function foo(a: number, b: string) { return false; });
     f(1, "") === false;
 
+    class C { constructor(a: number) { } }
+    const c = Object.freeze(C);
+    new c(1);
+    
     const a = Object.freeze([1, 2, 3]);
-    a[0] = 1;
+    a[0] = a[2].toString();
     ~~~~
 !!! error TS2542: Index signature in type 'ReadonlyArray<number>' only permits reading.
 
     const o = Object.freeze({ a: 1, b: "string" });
-    o.b = "another";
+    o.b = o.a.toString();
       ~
 !!! error TS2540: Cannot assign to 'b' because it is a constant or a read-only property.
 

tests/baselines/reference/objectFreeze.js

@@ -2,17 +2,28 @@
 const f = Object.freeze(function foo(a: number, b: string) { return false; });
 f(1, "") === false;
 
+class C { constructor(a: number) { } }
+const c = Object.freeze(C);
+new c(1);
+
 const a = Object.freeze([1, 2, 3]);
-a[0] = 1;
+a[0] = a[2].toString();
 
 const o = Object.freeze({ a: 1, b: "string" });
-o.b = "another";
+o.b = o.a.toString();
 
 
 //// [objectFreeze.js]
 var f = Object.freeze(function foo(a, b) { return false; });
 f(1, "") === false;
+var C = (function () {
+    function C(a) {
+    }
+    return C;
+}());
+var c = Object.freeze(C);
+new c(1);
 var a = Object.freeze([1, 2, 3]);
-a[0] = 1;
+a[0] = a[2].toString();
 var o = Object.freeze({ a: 1, b: "string" });
-o.b = "another";
+o.b = o.a.toString();

tests/cases/compiler/objectFreeze.ts

@@ -1,8 +1,12 @@
 const f = Object.freeze(function foo(a: number, b: string) { return false; });
 f(1, "") === false;
 
+class C { constructor(a: number) { } }
+const c = Object.freeze(C);
+new c(1);
+
 const a = Object.freeze([1, 2, 3]);
-a[0] = 1;
+a[0] = a[2].toString();
 
 const o = Object.freeze({ a: 1, b: "string" });
-o.b = "another";
+o.b = o.a.toString();