rust-lang/rust-playground

The Rust Playground

rust-playground's Issues

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This is useless:

We should have some basic description or something

Error help link not shown for some errors

   Compiling playground v0.0.1 (file:///playground)
error: can't find crate for `iron` [E0463]
 --> src/main.rs:2:5
2 |>     extern crate iron;
  |>     ^^^^^^^^^^^^^^^^^^

error: aborting due to previous error
error: Could not compile `playground`.

Doesn't have the --explain.

Mapping :w to Ctrl+Enter

It was brought to my attention that many vim-mode users expect that :w compiles the code.

serde_derive

Not sure if it's against the protocol, but I'd vouch for serde_derive to be added to the top crates.
I wanted to add a modern playground example to http://stackoverflow.com/a/37565736/257568 but it turns out there's no serde_derive there yet.

I mean, Serde is certainly in the top crates, but we'd want to promote the newer serde_derive version of the automation instead of the older serde_macros, right?

Investigate further security options

• gaol
• seccomp
• apparmor
• docker-bench-security
• docker-security-selinux

UI broken in Safari, can't see output

The output is not visible in Safari (its height is 5px or something). If I change a random CSS property of .output, it seems to recalculate the height and corrects the layout.

I'm using Safari Technology Preview version 9.1.2 (11601.7.4, 11602.1.37).

Add option to use simpler editor

As mentioned in rust-lang/rust-playpen#198 and in the users forum.

Support MIR output

Add caching to prevent recompilation of the same data

Add a timeout to the client-side AJAX calls

If the backend is in a bad state (like if the Docker container is not running), then we should kill the request after some amount of time and report some kind of error.

Better mobile design

fsevents dependency not available on linux

When running npm install in ui/frontend i get the following error:

npm ERR! notsup Unsupported

npm ERR! notsup Not compatible with your operating system or architecture: [email protected]
npm ERR! notsup Valid OS:    darwin
npm ERR! notsup Valid Arch:  any
npm ERR! notsup Actual OS:   linux
npm ERR! notsup Actual Arch: x64

As mentioned in the github repos of fsevents fsevents/fsevents#134, fsevents is OSX only. I'm not sure how to proceed :)

Support disk space limits

It would be nice to support limits on disk space, to prevent denial of service attacks.

Demangle functions/type name in LLVM IR and ASM

An option to demangle names from the LLVM IR/ASM output would be nice, and make it more readable.

Solicit replacement designs

Better handle progress for the formatting operation

Support `code` query parameter

?code=fn%20main()%20{%0a%20%20%20%20println!("Hello,%20world!");%0a} =>

fn main() {
    println!("Hello, world!");
}

Support a whitelist of crates ... somehow

Add a robots.txt

Add "tabbed" output modes

The current display of a bunch of content separated by hrs is... less than optimal. I'm thinking something like

Add an about / help page

• Features
  • tests
  • crates
  • clippy (link)
  • rustfmt (link)
• Link to this repo
• list of crates (ajax & parse toml?)

Nightly Rust changed the location of the ASM and LLVM IR files

It used to just be foo.ll, now it's foo-HASH.ll.

index.html should not have Cache-Control header set

Right now, it's public, max-age=31536000, which means that clients will never ask for an updated index.html. We only want to set these headers for the compiled assets!

Show network access is occurring

Support library crates, including ASM and LLVM IR

This is how I'd use the official playground to look at asm or llvm ir for a single function:

play.integer32 link

play.rust-lang link

#![crate_type="lib"]

pub fn memory(b: Box<[u8]>) {
    
}

on this playground, I can't find the way to do what I wanted (the single pub function emitted as asm/llvm ir by itself).

Add highlighting for output types

Should this include the useful "link to error" highlighting?

Crates are being rebuilt at runtime.

Add a favicon

Just to stop the silly 404s if nothing else.

Font Size

I administered a poll of 1 with 100% consensus (excluding me), so therefore have confirmed that it might be worth making the fontsize 14pt instead of 12pt in the editor. Here are the differences for me:

I might just be getting old though.

Consider offering a way to specify standard input

I have to scroll too much

What happened

I ran some code that I was interested to see either the output or the compilation errors for. After I clicked Run, I had to scroll to see most of the output that I was interested in.

What I expected to happen

On the official playground, I can see a lot more of the output without having to scroll. I am le tired.

Example on this playground:

Example on the official playground:

Execute button doesn't reflect test mode when reloaded from local storage

copy and paste does not work

It seems like it is not possible to copy and/or paste text, neither via keyboard shortcuts or the context menu. (Firefox 50.1.0, Ubuntu)

Use gaol or seccomp for sandboxing

http://security.stackexchange.com/a/107853/7497

Docker has a blacklist approach for security, which isn't ideal. We should be using a whitelisting sandbox.

Upgrade to the new error message style

Cannot read property '_handle' of undefined in production

vendor-f875c97….js:58 Uncaught TypeError: Cannot read property '_handle' of undefined
    at http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:58:1525
    at Array.forEach (native)
    at e.exports (http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:58:1504)
    at Object.<anonymous> (http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:16:6124)
    at Object.<anonymous> (http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:16:10942)
    at t (http://play.integer32.com/manifest-842991282bc80cd97f47.js:1:107)
    at Object.<anonymous> (http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:27:22411)
    at Object.<anonymous> (http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:27:24195)
    at t (http://play.integer32.com/manifest-842991282bc80cd97f47.js:1:107)
    at Object.<anonymous> (http://play.integer32.com/vendor-f875c976a9dab3b0e5f5.js:27:27240)
(anonymous) @ vendor-f875c97….js:58
e.exports @ vendor-f875c97….js:58
(anonymous) @ vendor-f875c97….js:16
(anonymous) @ vendor-f875c97….js:16
t @ manifest-8429912….js:1
(anonymous) @ vendor-f875c97….js:27
(anonymous) @ vendor-f875c97….js:27
t @ manifest-8429912….js:1
(anonymous) @ vendor-f875c97….js:27
(anonymous) @ vendor-f875c97….js:27
t @ manifest-8429912….js:1
(anonymous) @ vendor-f875c97….js:1
t @ manifest-8429912….js:1
window.webpackJsonp @ manifest-8429912….js:1
(anonymous) @ vendor-f875c97….js:1

Drop root privileges inside the container

https://opensource.com/business/14/7/docker-security-selinux

Removing the output tabs resets the scroll position

If I scroll down in the assembly then click back on the execution and back to assembly, by scroll position is lost.

It's not obvious that we've executed code that doesn't print anything.

This might be magically fixed by running everything thru cargo though, as it will print things.

Allow selecting the other Ace keybindings and themes

Loading these async would probably be ideal, but I'm not sure how to do that, yet...

Line number column is not fixed-width

A concern by a user mentioned that it bothered them that the line number column is not fixed width. You can see this by opening a blank editor, and hitting enter. You will notice that the width of the line number column increases going from line 9 -> line 10, and from line 99 -> line 100.

Add basic travis tests

Like that the packages compile and the unit tests run. Later on - integration

Continue building other containers when one fails

Right now, the beta channel is broken. This shouldn't preclude building nightly and others.

Include a version parameter in the gist links

Support a channel query parameter

version={stable,beta,nightly}

Add option to run Clippy

control-enter should run code

Investigate adding HTTPS support

Dockerize everything

It would be nice if the whole playground would be encapsulated into a docker image. If that image was published on dockerhub, installation would boild down to a single docker run command.

Add backtrace environment variable