The Tor Browser: js/src/jit-test/tests/ion/throw.js@6474c204b198 (annotated)

js/src/jit-test/tests/ion/throw.js@6474c204b198 (annotated)

js/src/jit-test/tests/ion/throw.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 function thrower1(x) {
     throw x + 2;
     // Dead code, should be ignored.
     throw ++x;
     return x;
 }
 function test1() {
     // If we ever inline functions containing JSOP_THROW,
     // this shouldn't assert.
     function f(x) {
         thrower1(x + 1);
     }
     for (var i=0; i<11000; i++) {
         try {
             f(i);
             assertEq(0, 1);
         } catch(e) {
             assertEq(e, i + 3);
         }
     }
 }
 test1();
 // Test throwing from an uncompilable (interpreted) function.
 function getException(f) {
     try {
         f();
         assertEq(0, 1);
     } catch(e) {
         return e;
     }
     assertEq(0, 1);
 }
 function thrower2(x) {
     if (x > 90)
         throw x;
     with ({}) {}; // Abort compilation...(?)
 }
 function test2() {
     for (var i = 0; i < 100; i++) {
         thrower2(i);
     }
 }
 assertEq(getException(test2), 91);
 // Throwing |this| from a constructor.
 function thrower3(x) {
     this.x = x;
     if (x > 90)
         throw this;
 }
 function test3() {
     for (var i=0; i < 100; i++) {
         new thrower3(i);
     }
 }
 assertEq(getException(test3).x, 91);
 // Throwing an exception in various loop blocks.
 var count = 0;
 function thrower4(x) {
     throw count++;
     count += 12345; // Shouldn't be executed.
 }
 function test4_1() {
     var i = 0;
     for (new thrower4(i); i < 100; i++) {
         count += 2000; // Shouldn't be executed.
     }
 }
 function test4_2() {
     for (var i = 0; thrower4(i); i++) {
 	count += 3000; // Shouldn't be executed.
     }
 }
 function test4_3() {
     for (var i = 0; i < 100; thrower4(i)) {
 	count += 5;
     }
 }
 function test4_4() {
     for (var i = 0; i < 10; i++) {
         if (i > 8)
             thrower4();
         count += i;
     }
 }
 for (var i = 0; i < 100; i++) {
     assertEq(getException(test4_1), count-1);
     assertEq(getException(test4_2), count-1);
     assertEq(getException(test4_3), count-1);
     assertEq(getException(test4_4), count-1);
 }
 assertEq(count, 4500);