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[jsinterp] Support functionality for player b22ef6e7

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* support `prototype` for call() and apply() (yt-dlp/yt-dlp#10392, thx Grub4k)
* map JS `Array` to `list`
This commit is contained in:
dirkf 2024-07-10 18:07:20 +01:00
commit d35ce6ce95
2 changed files with 48 additions and 3 deletions
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24
youtube_dl/jsinterp.py
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@ -850,7 +850,7 @@ class JSInterpreter(object):
memb = member
raise self.Exception('{memb} {msg}'.format(**locals()), expr=expr)
def eval_method():
def eval_method(variable, member):
if (variable, member) == ('console', 'debug'):
if Debugger.ENABLED:
Debugger.write(self.interpret_expression('[{}]'.format(arg_str), local_vars, allow_recursion))
@ -858,6 +858,7 @@ class JSInterpreter(object):
types = {
'String': compat_str,
'Math': float,
'Array': list,
}
obj = local_vars.get(variable)
if obj in (JS_Undefined, None):
@ -883,6 +884,23 @@ class JSInterpreter(object):
self.interpret_expression(v, local_vars, allow_recursion)
for v in self._separate(arg_str)]
# Fixup prototype call
if isinstance(obj, type):
new_member, rest = member.partition('.')[0::2]
if new_member == 'prototype':
new_member, func_prototype = rest.partition('.')[0::2]
assertion(argvals, 'takes one or more arguments')
assertion(isinstance(argvals[0], obj), 'must bind to type {0}'.format(obj))
if func_prototype == 'call':
obj = argvals.pop(0)
elif func_prototype == 'apply':
assertion(len(argvals) == 2, 'takes two arguments')
obj, argvals = argvals
assertion(isinstance(argvals, list), 'second argument must be a list')
else:
raise self.Exception('Unsupported Function method ' + func_prototype, expr)
member = new_member
if obj is compat_str:
if member == 'fromCharCode':
assertion(argvals, 'takes one or more arguments')
@ -976,11 +994,11 @@ class JSInterpreter(object):
if remaining:
ret, should_abort = self.interpret_statement(
self._named_object(local_vars, eval_method()) + remaining,
self._named_object(local_vars, eval_method(variable, member)) + remaining,
local_vars, allow_recursion)
return ret, should_return or should_abort
else:
return eval_method(), should_return
return eval_method(variable, member), should_return
elif md.get('function'):
fname = m.group('fname')