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[jsinterp] Fix function calls without arguments.

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This commit is contained in:
Kacper Michajłow 2016-11-05 06:11:51 +01:00
parent bc40b3a5ba
commit 189935f159
2 changed files with 9 additions and 2 deletions
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7
test/test_jsinterp.py
View File

@ -104,6 +104,13 @@ def test_precedence(self):
}''') }''')
self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50]) self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50])
def test_call(self):
jsi = JSInterpreter('''
function x() { return 2; }
function y(a) { return x() + a; }
function z() { return y(3); }
''')
self.assertEqual(jsi.call_function('z'), 5)
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()

4
youtube_dl/jsinterp.py
View File

@ -198,12 +198,12 @@ def interpret_expression(self, expr, local_vars, allow_recursion):
return opfunc(x, y) return opfunc(x, y)
m = re.match( m = re.match(
r'^(?P<func>%s)\((?P<args>[a-zA-Z0-9_$,]+)\)$' % _NAME_RE, expr) r'^(?P<func>%s)\((?P<args>[a-zA-Z0-9_$,]*)\)$' % _NAME_RE, expr)
if m: if m:
fname = m.group('func') fname = m.group('func')
argvals = tuple([ argvals = tuple([
int(v) if v.isdigit() else local_vars[v] int(v) if v.isdigit() else local_vars[v]
for v in m.group('args').split(',')]) for v in m.group('args').split(',')]) if len(m.group('args')) > 0 else tuple()
if fname not in self._functions: if fname not in self._functions:
self._functions[fname] = self.extract_function(fname) self._functions[fname] = self.extract_function(fname)
return self._functions[fname](argvals) return self._functions[fname](argvals)