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[jsinterp] Handle NaN in bitwise operators

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* also add _NaN
* also pull function naming from yt-dlp
This commit is contained in:
dirkf 2023-05-11 20:59:30 +01:00
parent 11cc3f3ad0
commit a85a875fef
2 changed files with 43 additions and 9 deletions
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11
test/test_jsinterp.py
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@ -18,6 +18,7 @@ class TestJSInterpreter(unittest.TestCase):
def test_basic(self):
jsi = JSInterpreter('function x(){;}')
self.assertEqual(jsi.call_function('x'), None)
self.assertEqual(repr(jsi.extract_function('x')), 'F<x>')
jsi = JSInterpreter('function x3(){return 42;}')
self.assertEqual(jsi.call_function('x3'), 42)
@ -505,6 +506,16 @@ class TestJSInterpreter(unittest.TestCase):
jsi = JSInterpreter('function x(){return 1236566549 << 5}')
self.assertEqual(jsi.call_function('x'), 915423904)
def test_bitwise_operators_madness(self):
jsi = JSInterpreter('function x(){return null << 5}')
self.assertEqual(jsi.call_function('x'), 0)
jsi = JSInterpreter('function x(){return undefined >> 5}')
self.assertEqual(jsi.call_function('x'), 0)
jsi = JSInterpreter('function x(){return 42 << NaN}')
self.assertEqual(jsi.call_function('x'), 42)
def test_32066(self):
jsi = JSInterpreter("function x(){return Math.pow(3, 5) + new Date('1970-01-01T08:01:42.000+08:00') / 1000 * -239 - -24205;}")
self.assertEqual(jsi.call_function('x'), 70)