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[jsinterp] Implement Function.prototype resolving for call and apply (#10392)

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Authored by: Grub4K
This commit is contained in:
Simon Sawicki
2024-07-08 23:46:26 +02:00
committed by GitHub
parent 39bc699d2e
commit 6c056ea7ae
2 changed files with 45 additions and 0 deletions
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18
yt_dlp/jsinterp.py
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@@ -636,6 +636,8 @@ class JSInterpreter:
raise self.Exception(f'{member} {msg}', expr)
def eval_method():
nonlocal member
if (variable, member) == ('console', 'debug'):
if Debugger.ENABLED:
Debugger.write(self.interpret_expression(f'[{arg_str}]', local_vars, allow_recursion))
@@ -644,6 +646,7 @@ class JSInterpreter:
types = {
'String': str,
'Math': float,
'Array': list,
}
obj = local_vars.get(variable, types.get(variable, NO_DEFAULT))
if obj is NO_DEFAULT:
@@ -667,6 +670,21 @@ class JSInterpreter:
self.interpret_expression(v, local_vars, allow_recursion)
for v in self._separate(arg_str)]
# Fixup prototype call
if isinstance(obj, type) and member.startswith('prototype.'):
new_member, _, func_prototype = member.partition('.')[2].partition('.')
assertion(argvals, 'takes one or more arguments')
assertion(isinstance(argvals[0], obj), f'needs binding to type {obj}')
if func_prototype == 'call':
obj, *argvals = argvals
elif func_prototype == 'apply':
assertion(len(argvals) == 2, 'takes two arguments')
obj, argvals = argvals
assertion(isinstance(argvals, list), 'second argument needs to be a list')
else:
raise self.Exception(f'Unsupported Function method {func_prototype}', expr)
member = new_member
if obj is str:
if member == 'fromCharCode':
assertion(argvals, 'takes one or more arguments')