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      1 // Copyright 2013 the V8 project authors. All rights reserved.
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     23 
     24 description(
     25 
     26 "This test checks that JavaScriptCore does not crash when uwinding the stack that includes a host function."
     27 
     28 );
     29 
     30 function twoHostFunctions() {
     31     var stack = [];
     32     stack.push({ "args": twoHostFunctions.arguments });
     33     stack.push({ "args": twoHostFunctions.arguments });
     34     testPassed("Two host functions called in a row.");
     35 }
     36 
     37 function arrayOperatorFunction(element) {
     38     return element + 5;
     39 }
     40 
     41 var myArray = new Array (0, 1, 2);
     42 function hostCallsUser(array) {
     43     return array.map(arrayOperatorFunction);
     44 }
     45 
     46 function throwException() {
     47     throw "Exception thrown";
     48 }
     49 
     50 function hostAndException() {
     51     var stack = [];
     52     stack.push({ "args": hostAndException.arguments });
     53     throwException();
     54 }
     55 
     56 twoHostFunctions();
     57 myArray = hostCallsUser(myArray);
     58 shouldBe(myArray, new Array( 5, 6, 7 ) );
     59 
     60 try {
     61     hostAndException();
     62 } catch (e) {
     63     testPassed("Exception thrown and caught");
     64 }
     65