feat: finish interpreter

Closes #61.

Includes
    - skip notification when there are no receivers
    - add logging in wasm/guest-fn test to webserver integration test
    - update homestar-function(s) to use cargo-component 0.9 and update for breaking changes
    - readme updates around cargo-component
    - const recursion/grow-only defaults for stacker
    - remove most pattern matching guards and move to nested matches in interpreter
    - newly generated test wasms (= cid updates)

examples/websocket-relay/relay-app/src/lib/workflow.ts

@@ -256,7 +256,7 @@ export const workflowOnePromised = WorkflowBuilder.workflow({
       WorkflowBuilder.crop({
         name: "crop",
         resource:
-          "ipfs://bafybeidpmgamv4i6jqrlwbnkrm3kzvvu7hj3jnoolcswub27mkda6p75la",
+          "ipfs://bafybeidwnpwd3jygfocbto5z6iyxexgeumt7vq7eyk652c6v3tzaifwfhe",
         args: {
           data: "{{ cid:bafybeiejevluvtoevgk66plh5t6xiy3ikyuuxg3vgofuvpeckb6eadresm }}",
           x: 150,
@@ -268,15 +268,15 @@ export const workflowOnePromised = WorkflowBuilder.workflow({
       WorkflowBuilder.rotate90({
         name: "rotate90",
         resource:
-          "ipfs://bafybeidpmgamv4i6jqrlwbnkrm3kzvvu7hj3jnoolcswub27mkda6p75la",
+          "ipfs://bafybeidwnpwd3jygfocbto5z6iyxexgeumt7vq7eyk652c6v3tzaifwfhe",
         args: {
           data: "{{needs.crop.output}}",
         },
       }),
       WorkflowBuilder.blur({
         name: "blur",
         resource:
-          "ipfs://bafybeidpmgamv4i6jqrlwbnkrm3kzvvu7hj3jnoolcswub27mkda6p75la",
+          "ipfs://bafybeidwnpwd3jygfocbto5z6iyxexgeumt7vq7eyk652c6v3tzaifwfhe",
         args: {
           data: "{{needs.rotate90.output}}",
           sigma: 20.2,
@@ -293,7 +293,7 @@ export const workflowTwoPromised = WorkflowBuilder.workflow({
       WorkflowBuilder.crop({
         name: "crop",
         resource:
-          "ipfs://bafybeidpmgamv4i6jqrlwbnkrm3kzvvu7hj3jnoolcswub27mkda6p75la",
+          "ipfs://bafybeidwnpwd3jygfocbto5z6iyxexgeumt7vq7eyk652c6v3tzaifwfhe",
         args: {
           data: "{{ cid:bafybeiejevluvtoevgk66plh5t6xiy3ikyuuxg3vgofuvpeckb6eadresm }}",
           x: 150,
@@ -305,15 +305,15 @@ export const workflowTwoPromised = WorkflowBuilder.workflow({
       WorkflowBuilder.rotate90({
         name: "rotate90",
         resource:
-          "ipfs://bafybeidpmgamv4i6jqrlwbnkrm3kzvvu7hj3jnoolcswub27mkda6p75la",
+          "ipfs://bafybeidwnpwd3jygfocbto5z6iyxexgeumt7vq7eyk652c6v3tzaifwfhe",
         args: {
           data: "{{needs.crop.output}}",
         },
       }),
       WorkflowBuilder.grayscale({
         name: "grayscale",
         resource:
-          "ipfs://bafybeidpmgamv4i6jqrlwbnkrm3kzvvu7hj3jnoolcswub27mkda6p75la",
+          "ipfs://bafybeidwnpwd3jygfocbto5z6iyxexgeumt7vq7eyk652c6v3tzaifwfhe",
         args: {
           data: "{{needs.rotate90.output}}",
         },

homestar-functions/README.md

@@ -23,7 +23,8 @@ building Wasm components in order to run and test them on the latest
 
 We use the components compiled from this crate as fixtures for our
 execution-and-[IPLD][ipld]-focused [homestar-wasm crate](../homestar-wasm). We
-currently rely on the [WIT format][wit-mvp] IDL to describe exports, for example:
+currently rely on the [WIT format][wit-mvp] IDL to describe exports, for
+example:
 
 ```wit
 default world homestar {
@@ -33,39 +34,35 @@ default world homestar {
 }
 ```
 
-
 We then implement these functions in [lib.rs](./src/lib.rs) using
-[wit-bindgen][wit-bindgen], a guest language bindings generator for
-[WIT][wit-mvp] and the [Component Model][component-model].
+[wit-bindgen][wit-bindgen]/[wit-bindgen-rt][wit-bindgen-rt], a guest language
+bindings generator for [WIT][wit-mvp] and the
+[Component Model][component-model].
 
 ## Build
 
-Once functions are implemented, we can build the component in release-mode,
-targetting [`wasm32-unknown-unknown`][wasm32], :
+Once functions are implemented, we can use [cargo-component][cargo-component] to
+generate the necessary bindings and build the component in release-mode,
+targeting [`wasm32-unknown-unknown`][wasm32-unknown]:
 
 ```console
 # from this directory:
-cd test && cargo build --target wasm32-unknown-unknown --profile release-wasm-fn
+cd test && cargo component build --target wasm32-unknown-unknown --profile release-wasm-fn
 
 # or from the top-level workspace:
-cargo build -p homestar-functions-test --target wasm32-unknown-unknown --profile release-wasm-fn
+cargo component build -p homestar-functions-test --target wasm32-unknown-unknown --profile release-wasm-fn
 ```
 
-Guest Wasm modules will be generated in the top-level `homestar` directory:
-`./target/wasm32-unknown-unknown/release-wasm-fn/homestar_functions_test.wasm`.
-
-Sadly, this module is **not yet** an actual `component`. But, we can leverage
-the [wasm-tools][wasm-tools] tooling ([wit-component][wit-component] in
-particular) to convert the core Wasm binary to a Wasm component and place
-it in a different directory:
+We can also build for [`wasm32-wasi`][wasm32-wasi] targets, which
+[cargo-component][cargo-component] defaults to:
 
-```console
-wasm-tools component new /
-../target/wasm32-unknown-unknown/release-wasm-fn/homestar_functions_test.wasm -o ../homestar-wasm/fixtures/
+``` console
+cargo component build -p homestar-functions-test --profile release-wasm-fn
 ```
 
-*Of note*, [homestar-wasm's](../homestar-wasm) execution model will do
-[this conversion at runtime][conversion-code]!
+Guest Wasm modules will be generated in the top-level `homestar` directory:
+`./target/wasm32-unknown-unknown/release-wasm-fn/homestar_functions_test.wasm`
+or `./target/wasm32-wasi/release-wasm-fn/homestar_functions_test.wasm`.
 
 ### Other Helpful Repos
 
@@ -74,10 +71,6 @@ wasm-tools component new /
   abstract distributed application capabilities, such as key-value, messaging,
   http-server/client and more.
 
-### Coming soon
-
-* [WASI][wasi] examples
-
 ## License
 
 This project is licensed under the [Apache License 2.0](./LICENSE), or
@@ -92,15 +85,17 @@ conditions.
 
 
 [apache]: https://www.apache.org/licenses/LICENSE-2.0
+[cargo-component]: https://github.com/bytecodealliance/cargo-component
 [component-model]: https://github.com/WebAssembly/component-model
-[conversion-code]: https://github.com/ipvm-wg/homestar/blob/main/homestar-wasm/src/wasmtime/world.rs#L277
 [ipld]: https://ipld.io/
 [kv-demo]: https://github.com/Mossaka/keyvalue-component-model-demo
 [spiderlightning]: https://github.com/deislabs/spiderlightning
 [wasi]: https://github.com/WebAssembly/WASI
-[wasm32]: https://rustwasm.github.io/docs/wasm-pack/prerequisites/non-rustup-setups.html#manually-add-wasm32-unknown-unknown
+[wasm32-unknown]: https://rustwasm.github.io/docs/wasm-pack/prerequisites/non-rustup-setups.html#manually-add-wasm32-unknown-unknown
+[wasm32-wasi]: https://wasmbyexample.dev/examples/wasi-hello-world/wasi-hello-world.rust.en-us
 [wasmtime]: https://github.com/bytecodealliance/wasmtime
 [wasm-tools]: https://github.com/bytecodealliance/wasm-tools
 [wit-bindgen]: https://github.com/bytecodealliance/wit-bindgen
+[wit-bindgen-rt]: https://github.com/bytecodealliance/wit-bindgen-rt
 [wit-component]: https://crates.io/crates/wit-component
 [wit-mvp]: https://github.com/WebAssembly/component-model/blob/main/design/mvp/WIT.md

homestar-functions/add/Cargo.toml

@@ -6,9 +6,7 @@ edition = { workspace = true }
 rust-version = { workspace = true }
 
 [dependencies]
-wit-bindgen = { version = "0.18.0", default-features = false, features = [
-  "realloc",
-] }
+wit-bindgen-rt = "0.20.0"
 
 [lib]
 crate-type = ["cdylib"]