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util: allow symbol-based custom inspection methods #8174

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Closed

util: allow symbol-based custom inspection methods #8174

wants to merge 2 commits into from

Commits on Aug 24, 2016

  1. util: allow symbol-based custom inspection methods 

    Add a `util.inspect.custom` Symbol which can be used to customize
`util.inspect()` output. Providing `obj[util.inspect.custom]`
works like providing `obj.inspect`, except that the former allows
avoiding name clashes with other `inspect()` methods.

Fixes: nodejs#8071
    @addaleax
    addaleax committed Aug 24, 2016
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  2. util: allow returning this from custom inspect 

    If a custom inspection function returned `this`, use that value
for further formatting instead of going into infinite recursion.

This is particularly useful when combined with `util.inspect.custom`
because returning `this` from such a method makes it easy to
have an `inspect()` function that is ignored by `util.inspect` without
actually having to provide an alternative for custom inspection.
    @addaleax
    addaleax committed Aug 24, 2016
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