Evented: yield fiber to control how to enqueue from `#run` #392

	name: WebAssembly CI

	on: [push, pull_request]

	permissions: {}

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}

	env:
	SPEC_SPLIT_DOTS: 160

	jobs:
	wasm32-test:
	runs-on: ubuntu-24.04
	container: crystallang/crystal:1.14.0-build
	steps:
	- name: Download Crystal source
	uses: actions/checkout@v4

	- name: Install wasmtime
	uses: mwilliamson/setup-wasmtime-action@v2
	with:
	wasmtime-version: "2.0.0"

	- name: Install LLVM
	run: \|
	apt-get update
	apt-get remove -y 'llvm-' 'libllvm'
	apt-get install -y curl software-properties-common
	wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key \| tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc
	apt-add-repository -y deb http://apt.llvm.org/noble/ llvm-toolchain-noble-18 main
	apt-get install -y llvm-18-dev lld-18
	ln -s $(which wasm-ld-18) /usr/bin/wasm-ld

	- name: Download wasm32 libs
	run: \|
	mkdir wasm32-wasi-libs
	curl -LO https://github.com/lbguilherme/wasm-libs/releases/download/0.0.3/wasm32-wasi-libs.tar.gz
	echo "cd36f319f8f9f9cd08f723d10e6ec2b92f2e44d3ce3b20344b8041386d85c261 wasm32-wasi-libs.tar.gz" \| sha256sum -c -
	tar -f wasm32-wasi-libs.tar.gz -C wasm32-wasi-libs -xz
	rm wasm32-wasi-libs.tar.gz

	- name: Build spec/wasm32_std_spec.cr
	run: bin/crystal build spec/wasm32_std_spec.cr -o wasm32_std_spec.wasm --target wasm32-wasi -Dwithout_iconv -Dwithout_openssl
	env:
	CRYSTAL_LIBRARY_PATH: ${{ github.workspace }}/wasm32-wasi-libs

	- name: Run wasm32_std_spec.wasm
	run: \|
	wasmtime run wasm32_std_spec.wasm

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