Add support for casting environment variables to standard types.

[ruseinov]

What could be done is the Env map could be turned to a type and some convenience methods could be added for type casting, to avoid doing .(int) etc.

Something like Env.Int("param_name") or similar.

[ant0ine]

What would be the benefit over type assertions (eg: .(int)) ? This is the same amount of typing, and type assertions seem more Go-ish.

[ruseinov]

It's just nicer this way, you get autocomplete for some common types, also ForceType is also nice to have for convenience.

I've stolen this idea from https://godoc.org/github.com/garyburd/redigo/redis#hdr-Reply_Helpers , feel free to browse through it.

[wingyplus]

I thing the benefit is caller does not assert type itself. Maybe the method can be assert and return zero value when Env cannot assert.

[ruseinov]

Exactly!

On Wed, Jan 20, 2016 at 11:36 AM Thanabodee Charoenpiriyakij <
[email protected]> wrote:

I thing the benefit is caller does not assert type itself. Maybe the
method can be assert and return zero value when Env cannot assert.

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