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__evaluate_entry and __evaluate_exit can be overridden inside expression #695

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adamscybot opened this issue May 9, 2024 · 0 comments · May be fixed by #700
Open

__evaluate_entry and __evaluate_exit can be overridden inside expression #695

adamscybot opened this issue May 9, 2024 · 0 comments · May be fixed by #700
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@adamscybot
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These "secret" environment callbacks are regularly used to timebox expressions or detect loops. You can disable such protections by assigning them to a falsey value inside the expression itself.

These bindings should probably be non-writeable (possibly non-readable also?) from inside the expression:

const expression = jsonata(`
 (
    $__evaluate_entry := false;
    $__evaluate_exit := false;
    /* Anything here, like a loop, will not be captured by the entry and exit callbacks */
  )
`)

await expression.evaluate()
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Protect __evaluate_entry and __evaluate_exit callbacks adamscybot/jsonata
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@adamscybot @mattbaileyuk