[ruby-core:113709] [Ruby master Feature#19699] Need a way to store values like dig

Issue #19699 has been updated by byroot (Jean Boussier).

Status changed from Open to Closed

I believe this is a duplicate of [Feature #14564], [Feature #13179] and [Feature #11747].

This was previously rejected by Matz because it was lacking a use case and lacking a proper name.

I'm somewhat sympathetic to this feature request, but I don't think it really move the needle in term of proposal, so I'll close it as duplicate.

Thanks though.


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Feature #19699: Need a way to store values like dig
https://bugs.ruby-lang.org/issues/19699#change-103360

* Author: edufcarvalho (Eduardo Carvalho)
* Status: Closed
* Priority: Normal
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Currently, there is no way to perform a `.store` operation on nested hashes in Ruby as there is for accessing them using `.dig`, so I would like to propose something like:

Hash#dig_store(*args, **kwargs, arg = nil), which fills the value at *args with **kwargs if the value at *args is a hash, or with arg if the value is something else. Here are some examples:

```ruby
a = {}
a.dig_store(:a, :b, :c, :d, 10)
=> {:a=>{:b=>{:c=>{:d=>10}}}}
```

```ruby
a = {}
a.dig_store(:a, :b, :c, :d, a: 10,  b: 20, c: 30)
=> {:a=>{:b=>{:c=>{:d=>{:a=>10, :b=>20, :c=>30}}}}}
```

```ruby
a = {a: {b: {c: "test"}}}
a.dig_store(:a, :b, :c,  "123")
=> {:a=>{:b=>{:c=>"123"}}}
```

```ruby
a = {a: {b: {c:  {}}}
a.dig_store(:a, :b, :c,  a: 10, b: 20)
=> {:a=>{:b=>{:c=>{:a=>10, :b=>20}}}}
```

I'm not that skilled on Ruby (actually a Junior developer), but i'm looking forward to implementing it if the core team approves it



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