test/mjsunit/regress/regress-1122.js

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// Test that we can handle functions with up to 32766 arguments, and that
// functions with more arguments throw an exception.

// See http://code.google.com/p/v8/issues/detail?id=1122.

function function_with_n_args(n) {
  test_prefix = 'prefix ';
  test_suffix = ' suffix';
  var source = 'test_prefix + (function f(';
  for (var arg = 0; arg < n ; arg++) {
    if (arg != 0) source += ',';
    source += 'arg' + arg;
  }
  source += ') { return arg' + (n - n % 2) / 2 + '; })(';
  for (var arg = 0; arg < n ; arg++) {
    if (arg != 0) source += ',';
    source += arg;
  }
  source += ') + test_suffix';
  return eval(source);
}

assertEquals('prefix 4000 suffix', function_with_n_args(8000));
assertEquals('prefix 9000 suffix', function_with_n_args(18000));
assertEquals('prefix 16000 suffix', function_with_n_args(32000));

assertThrows("function_with_n_args(35000)");
assertThrows("function_with_n_args(100000)");