I’m posting this first in the forum to see response before posting as a formal issue. Proposal This is a proposal to introduce a new keyword ends (or endall) as a terminal point to resolve the end of nested loops|conditionals. Why It’s a common code occurrence to have multiple levels of loops an…

Why? The formatter should enforce the placement of the end keyword and I imagine it would be harder to parse given it’s not as simple as like skip_whitespace_or_newline anymore.

Also, I don’t think it would be as useful as it seems. Consider the following code: module Graphics class Renderer def render(scene, image, screenWidth, screenHeight) screenHeight.times do |y| screenWidth.times do |x| color = self.traceRay(....) r, g, b = Col…

I think at this point I vaguely remember disliking begin / end instead of { / } like in many other languages when I just started to learn Ruby. This was one of the small annoyances for me back then with otherwise great, even life changing experience with Ruby and it’s syntax. Funny thing it stopped…

[image] RespiteSage: Where does ends go? I’d want it to go at the end of render , but that would end the class and module, too, right? module Graphics class Renderer def render(scene, image, screenWidth, screenHeight) screenHeight.times do |y| screenWidth.times do |x| …

This is my point: how do you (and the compiler) know which end statements an ends represents? In your version of my example, you used ends to complete a method and all of its internal blocks. But then you use it to complete a class and its enclosing module. How does the compiler know that the first e…

The proposal is for ends to match the beginning scope according to indentation. The language has no concept of indentation, so there’s no way we are going to do something like this. If you use a code formatter integrated with the editor this is not a problem at all. In fact, is the issue just that…

[image] RespiteSage: This is my point: how do you (and the compiler) know which end statements an ends represents? In your version of my example, you used ends to complete a method and all of its internal blocks. But then you use it to complete a class and its enclosing module. How does the comp…

Let’s annotate my original example with the open .. end statements at each line. module Graphics # module class Renderer # module, class def render(scene, image, screenWidth, screenHeight) # module, class, def screenHeight.times do |y| # module, class, def, times y block screenW…

[image] RespiteSage: If ends resolves all open .. end statements where it’s added, then an ends at any line in the above example will end the module. That means that your two- ends example above is inconsistent with the example you gave in the post I’m replying to. Either it ends all contexts th…

Proposal: New "ends" keyword

Community

asterite April 8, 2021, 4:29pm 4

Jabari: are you using an editor with an integrated formatter? If not, please do! I’m sure you’ll love it

Topic		Replies	Views
Endless methods for Crystal Community	24	1189	December 10, 2023
RFC: `&.` within a block Crystal Contrib	61	3953	December 9, 2023
RFC: `with ... yield` replacement Crystal Contrib	57	4109	May 14, 2025
Verifying what an 'end' goes with Help & Support	4	495	December 10, 2019
My 2022 Crystal Wishlist Community	19	3048	March 11, 2022

Proposal: New "ends" keyword

Related topics