Current approach:

On AS side

declare function abort(...);

function assert(cond: bool, msg: string): void {
  if (!cond) {
    abort(msg, LINE, FILE);
    unreachable();
  }
}

assert(false, "some error"); // trap

On host side:

WebAssembly.instantiateStreaming(...), {
  env: {
    abort(msg, file, line, col) {
      console.error(...);
    },
    se

In order for interrupt-based wake-ups (as introduced by #1142) to work concurrently with time.Sleep, we need to make some per-board changes.

Previously, sleepTicks (the function used as an interface between the scheduler and the hardware timer) was defined to block until the timer completed, since there was nothing else to do. Now we need to change this so that it bails out when an interrup

Summa

Related to #663 , adding type annotations to pyodide_build as well as packages/micropip modules would likely make iterating on other build related issues faster (as some issues could be detected earlier), and would make the code more readable.

We only need to annotate the of input and output in functions/methods. Mypy should also then activated in the CI [here](http

Problem

walt-cli package when linking multiple .walt files together can "wrap" the modules in a stand-alone JS module. The resulting module is too large because it serialized the dependency tree with the AST information encoded directly into the output, resulting in a massive amount of js.

Encoding the dependencies into the file is done to ensure the module can be used stand-alone in br

What would you like clarification on:

I read that Uno renders all controls in Windows style and there is an option somewhere deep in Uno to have some of the controls render in native OS style.

I believe it's crucial to be able to switch an application's (or page's) property to render controls using native styles wherever applicable (and to be able to switch back to Windows style again when

Feature Request

Description of Problem:

Sometimes, when displaying the candlestick and OHLC charts, the y-axis tick values and label overlap, making the charts a little hard to read. I found this example in the Conceptual Overview tab on the Perspective docs page:

<img width="787" alt="Screen Shot 2020-05-07 at 9 26 28 PM" src="https://user-images.githubusercontent.com/35414964/81363

After spending some time to debug it, I discovered that the project cannot be compiled on MacOS if -DCLANG_SUFFIX="-9" is passed. I have llvm@9 installed from brew and it gives the following error:

-- The C compiler identification is Clang 9.0.1
-- The CXX compiler identification is unknown
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for work

Suggestion / feature request: List which languages / compilers support source maps, and which do not.