ruby-core

Issue #8643 has been updated by Rodrigo Rosenfeld Rosas.


Nobuyoshi Nakada wrote:
> Rodrigo Rosenfeld Rosas wrote:
> > The other one suggested ERB to accept also a hash, instead of a binding for `#result`.
> 
> It feels better to me.

Either one is fine to me as long as I can easily pass locals to ERB from a hash using a proper API :) Since this is the only use case I have in mind for `Binding.from_hash` I agree with you that passing a hash to ERB constructor feels better.

----------------------------------------
Feature #8643: Add Binding.from_hash
https://bugs.ruby-lang.org/issues/8643#change-59905

* Author: Rodrigo Rosenfeld Rosas
* Status: Open
* Priority: Normal
* Assignee: Koichi Sasada
----------------------------------------
`Binding.from_hash` would work like:

```ruby
class Binding
  def self.from_hash(hash)
    OpenStruct.new(hash){ binding }
  end
end
```

It would simplify things like:

`ERB.new(IO.read 'template.erb').result Binding.from_hash(template_local: 'example')`

Or if you need to `eval` some code in another process (JRuby, for instance) and need to pass some arguments to the `eval` code in a hash form.

I didn't want to pollute `Hash` by adding `Hash#to_binding`. I believe `Binding.from_hash` is more appropriate.

---Files--------------------------------
feature-8643.pdf (19 KB)


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