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#to_hash should not replace nested config objects with Hash #160

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merged 1 commit into from
Dec 19, 2016

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seikichi
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Config::Options#to_hash mistakenly replaces nested Config::Options
objects in arrays with Hash objects. Consider the following code:

> config = Config.load_files("spec/fixtures/development.yml");
> config.section.servers[0].class
Config::Options
> config.to_hash
{:size=>2, :section=>{:size=>3, :servers=>[{:name=>"yahoo.com"}, {:name=>"amazon.com"}]}}
> config.section.servers[0].class
Hash

Therefore, after evaluating config.to_hash,
config.sections.servers[0].name raises an exception.
This is because Config::Options#descend_array overwrites array elements.

This commit fixes the above problem by modifying the
Config::Options#descend_array.

`Config::Options#to_hash` mistakenly replaces nested `Config::Options`
objects in arrays with `Hash` objects. Consider the following code:

```ruby
> config = Config.load_files("spec/fixtures/development.yml");
> config.section.servers[0].class
Config::Options
> config.to_hash
{:size=>2, :section=>{:size=>3, :servers=>[{:name=>"yahoo.com"}, {:name=>"amazon.com"}]}}
> config.section.servers[0].class
Hash
```

Therefore, after evaluating `config.to_hash`,
`config.sections.servers[0].name` raises an exception.
This is because `Config::Options#descend_array` overwrites array elements.

This commit fixes the above problem by modifying the
`Config::Options#descend_array`.
@pkuczynski pkuczynski changed the title Fix that #to_hash replaces nested config objects with Hash #to_hash should not replace nested config objects with Hash Dec 19, 2016
@pkuczynski pkuczynski merged commit 4a0efa5 into rubyconfig:master Dec 19, 2016
@pkuczynski
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Awesome, thanks!

@pkuczynski pkuczynski added this to the 1.3.1 milestone Dec 19, 2016
@pkuczynski pkuczynski added the bug label Dec 19, 2016
@pkuczynski pkuczynski modified the milestones: 1.3.1, 1.4 Oct 23, 2017
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