parse-reviver.js - mozsearch

Enable keyboard shortcuts

function doubler(k, v)

  assertEq(typeof k, "string");

  if (typeof v == "number")

    return 2 * v;

  return v;

var x = JSON.parse('{"a":5,"b":6}', doubler);

assertEq(x.hasOwnProperty('a'), true);

assertEq(x.hasOwnProperty('b'), true);

assertEq(x.a, 10);

assertEq(x.b, 12);

x = JSON.parse('[3, 4, 5]', doubler);

assertEq(x[0], 6);

assertEq(x[1], 8);

assertEq(x[2], 10);

// make sure reviver isn't called after a failed parse

var called = false;

function dontCallMe(k, v)

  called = true;

try

  JSON.parse('{{{{{{{}}}}', dontCallMe);

  throw new Error("didn't throw?");

catch (e)

  assertEq(e instanceof SyntaxError, true, "wrong exception: " + e);

assertEq(called, false);

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");