scala-wasm

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sjrd

Current `.isInstanceOf[]` implementation walk through the itables, which requires `O(N)`, it would be nice if we can test it with `O(1)` with small space requirements. https://github.com/tanishiking/scala-wasm/blob/0b446827bfe04181413443b235dcfcb4398073cc/wasm/src/main/scala/ir2wasm/HelperFunctions.scala#L700-L707 You can find the...

tanishiking

Make scala-wasm suitable for standalone Wasm VMs

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## Why Currently, the Wasm modules generated by `scala-wasm` depend on helper functions in JavaScript, making it possible to run them on JavaScript engines like V8, but not on standalone...

tanishiking

https://github.com/tanishiking/scala-wasm/blob/038d769069b4c4d4bfffe8d69550eb44c8f9ef1b/build.sbt#L263-L264 This might not be solvable in this backend. The [original test](https://github.com/scala-js/scala-js/blob/95c38be0501fb81c992f3ce8b9e5a9828c2e831e/test-suite/js/src/test/scala/org/scalajs/testsuite/javalib/lang/SystemJSTest.scala#L26-L43) is actually a bit dodgy to begin with, and we will probably want to disable it for Wasm.

sjrd

Currently, our testing focuses on the generated `.wasm` files, while the `.wat` files are primarily for debugging purposes. We utilize these `.wat` files for browsing or verifying validity by passing...

tanishiking

sjrd

Now that we are in `linker.backend`, we can directly access it.

sjrd

They were isomorphic anyway, and the Wasm spec only has a notion of function type, even where we previously used function signature.

sjrd

Since we are not matching the actual spelling of Wasm instructions anyway, we use more idiomatic Scala conventions.

sjrd

This commit adds experimental [WASI preview1](https://github.com/WebAssembly/WASI/blob/main/legacy/preview1/docs.md) support (at least `fd_write` for now) via memory instructions. **Memory Allocation overview** To allocate memory in Wasm's linear memory, use `MemoryAllocator.allocate(bytes)`. This method returns...

tanishiking