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[jsinterp] Disable comment support
We need a proper lexer to be able to understand YouTube's code, which contains /* inside of strings. For now it's sufficient to just disable comment support altogether. Fixes #4976, fixes #4979, fixes #4980, fixes #4981, fixes #4982. Closes #4977.
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@ -70,6 +70,8 @@ class TestJSInterpreter(unittest.TestCase):
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self.assertEqual(jsi.call_function('f'), -11)
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def test_comments(self):
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'Skipping: Not yet fully implemented'
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return
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jsi = JSInterpreter('''
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function x() {
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var x = /* 1 + */ 2;
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@ -80,6 +82,15 @@ class TestJSInterpreter(unittest.TestCase):
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''')
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self.assertEqual(jsi.call_function('x'), 52)
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jsi = JSInterpreter('''
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function f() {
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var x = "/*";
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var y = 1 /* comment */ + 2;
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return y;
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}
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''')
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self.assertEqual(jsi.call_function('f'), 3)
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def test_precedence(self):
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jsi = JSInterpreter('''
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function x() {
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@ -64,6 +64,12 @@ _TESTS = [
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'js',
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'4646B5181C6C3020DF1D9C7FCFEA.AD80ABF70C39BD369CCCAE780AFBB98FA6B6CB42766249D9488C288',
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'82C8849D94266724DC6B6AF89BBFA087EACCD963.B93C07FBA084ACAEFCF7C9D1FD0203C6C1815B6B'
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),
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(
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'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js',
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'js',
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'312AA52209E3623129A412D56A40F11CB0AF14AE.3EE09501CB14E3BCDC3B2AE808BF3F1D14E7FBF12',
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'112AA5220913623229A412D56A40F11CB0AF14AE.3EE0950FCB14EEBCDC3B2AE808BF331D14E7FBF3',
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)
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]
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@ -30,13 +30,10 @@ class JSInterpreter(object):
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def __init__(self, code, objects=None):
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if objects is None:
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objects = {}
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self.code = self._remove_comments(code)
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self.code = code
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self._functions = {}
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self._objects = objects
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def _remove_comments(self, code):
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return re.sub(r'(?s)/\*.*?\*/', '', code)
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def interpret_statement(self, stmt, local_vars, allow_recursion=100):
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if allow_recursion < 0:
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raise ExtractorError('Recursion limit reached')
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