Implement type 'any' and alt-type #61
Labels
Milestone
Comments
|
Shifted to rustc |
|
To really make this useful now it would need to have variations for the different kinds, any~, any@, any&, or such. |
|
Even though we haven't had a pressing need for this I think it could be useful in error handling. For example an error(any) type is more composable than error(T). And given that fail essentially takes type any, it would provide a nice way to perform a 'try' operation in another task and return an error(any~) of the fail value to the original task. |
ghost
assigned 
Closed
|
#1498 -- as well as traits/impls -- supersede this, we agreed. Closing. |
Manishearth
added a commit
to Manishearth/rust
that referenced
this issue
Jul 10, 2015
…bnik
So I have tried to improve the rustbook engine:
- The sidebar now looks a lot more like gitbook (I thinks it cleaner)
- Added the Open Sans font, in my opinion more readable for prolonged periods of time
- Changed the style for code blocks a little
I encountered 1 problem. In `build.rs` I added this google font url (I commented out the non-relevant parts for clarity)
```rust
let rustdoc_args: &[String] = &[
//"".to_string(),
//preprocessed_path.display().to_string(),
//format!("-o{}", out_path.display()),
//format!("--html-before-content={}", prelude.display()),
//format!("--html-after-content={}", postlude.display()),
//format!("--markdown-playground-url=http://play.rust-lang.org"),
//format!("--markdown-css={}", item.path_to_root.join("rust-book.css").display()),
format!("--markdown-css=http://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700"),
//"--markdown-no-toc".to_string(),
];
```
As you can see, I had to escape `=` with `&rust-lang#61;` because the string would get truncated if I didn't. Is that normal behaviour? Is that for security measures? If it is, isn't it a little weak if you can circumvent it by escaped characters? I don't know the reason behind, but I thought it was at least worth mentioning :)
Take your time for this PR, I still want to add multiple improvements:
- Like gitbook, possibility to change font by user
- Put `css` and `js` in their respective files (not hardcoded in rust)
- button to hide sidebar
- ...
So I'm not in a hurry to get this merged ;) But if you think it's good enough to be merged, go ahead. I will make another PR when I have other improvements.
In the image below is a screen of the improvements
bors
added a commit
that referenced
this issue
Jul 27, 2015
So I have tried to improve the rustbook engine:
- The sidebar now looks a lot more like gitbook (I thinks it cleaner)
- Added the Open Sans font, in my opinion more readable for prolonged periods of time
- Changed the style for code blocks a little
I encountered 1 problem. In `build.rs` I added this google font url (I commented out the non-relevant parts for clarity)
```rust
let rustdoc_args: &[String] = &[
//"".to_string(),
//preprocessed_path.display().to_string(),
//format!("-o{}", out_path.display()),
//format!("--html-before-content={}", prelude.display()),
//format!("--html-after-content={}", postlude.display()),
//format!("--markdown-playground-url=http://play.rust-lang.org"),
//format!("--markdown-css={}", item.path_to_root.join("rust-book.css").display()),
format!("--markdown-css=http://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,400,700"),
//"--markdown-no-toc".to_string(),
];
```
As you can see, I had to escape `=` with `=` because the string would get truncated if I didn't. Is that normal behaviour? Is that for security measures? If it is, isn't it a little weak if you can circumvent it by escaped characters? I don't know the reason behind, but I thought it was at least worth mentioning :)
Take your time for this PR, I still want to add multiple improvements:
- Like gitbook, possibility to change font by user
- Put `css` and `js` in their respective files (not hardcoded in rust)
- button to hide sidebar
- ...
So I'm not in a hurry to get this merged ;) But if you think it's good enough to be merged, go ahead. I will make another PR when I have other improvements.
In the image below is a screen of the improvements
dlrobertson
pushed a commit
to dlrobertson/rust
that referenced
this issue
Nov 29, 2018
Document closure to fn coercion feature
eddyb
pushed a commit
to eddyb/rust
that referenced
this issue
Jun 30, 2020
antoyo
added a commit
to antoyo/rust
that referenced
this issue
Aug 14, 2021
bors
pushed a commit
to rust-lang-ci/rust
that referenced
this issue
Oct 1, 2021
Add bitmasks and simplify mask API
djtech-dev
pushed a commit
to djtech-dev/rust
that referenced
this issue
Dec 9, 2021
Revert "Bind Symbol to the engine using lifetime not Rc"
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Similar to
altbut branches on the actual type of itsany-typed head expression rather than the value. Implement in full --- doesn't even parse at the moment. See manual. Should also include the 'any' type and how to inject/extract values from it.The text was updated successfully, but these errors were encountered: