feat!: Rename reactor to imports (#35)

* feat!: Rename reactor to imports

We have established a convention for WASI proposals
to have a world definition called `imports`.

This change updates the `command` world to include
an `imports` world rather than `reactor`. The goal
is to establish consistency with this change as
well as clear up some confusion around command
vs reactors in this context.

Additionally, this change takes advantage of the `include`
syntax to include the `imports` worlds across WASI
proposals.

* fix(ci): pin wit-bindgen 0.15.0

.github/workflows/main.yml

@@ -20,4 +20,5 @@ jobs:
  git diff --exit-code
  - uses: WebAssembly/wit-abi-up-to-date@v16
  with:
- worlds: "command reactor"
+ wit-bindgen: '0.15.0'
+ worlds: "command imports"

wit/command.wit

@@ -1,7 +1,7 @@
 package wasi:cli@0.2.0-rc-2023-11-10;
 
 world command {
- include reactor;
+ include imports;
 
  export run;
 }

wit/deps.lock

@@ -10,8 +10,8 @@ sha512 = "2c242489801a75466986fe014d730fb3aa7b5c6e56a230c8735e6672711b58bcbe92ba
 
 [io]
 url = "https://github.com/WebAssembly/wasi-io/archive/main.tar.gz"
-sha256 = "f2e6127b235c37c06be675a904d6acf08db953ea688d78c42892c6ad3bd194e4"
-sha512 = "32feefbc115c34bf6968cb6e9dc15e755698ee90648e5a5d84448917c36a318bd61b401195eb64330e2475e1d098bfb8dee1440d594a68e0797748762bd84ae5"
+sha256 = "b622db2755978a49d18d35d84d75f66b2b1ed23d7bf413e5c9e152e190cc7d4b"
+sha512 = "d19c9004e75bf3ebe3e34cff498c3d7fee04cd57a7fba7ed12a0c5ad842ba5715c009de77a152c57da0500f6ca0986b6791b6f022829bdd5a024f7bc114c2ff6"
 
 [random]
 url = "https://github.com/WebAssembly/wasi-random/archive/main.tar.gz"

wit/deps/io/poll.wit

@@ -3,7 +3,7 @@ package wasi:io@0.2.0-rc-2023-11-10;
 /// A poll API intended to let users wait for I/O events on multiple handles
 /// at once.
 interface poll {
- /// `pollable` epresents a single I/O event which may be ready, or not.
+ /// `pollable` represents a single I/O event which may be ready, or not.
  resource pollable {
 
  /// Return the readiness of a pollable. This function never blocks.

wit/deps/io/streams.wit

@@ -131,7 +131,7 @@ interface streams {
  /// let pollable = this.subscribe();
  /// while !contents.is_empty() {
  /// // Wait for the stream to become writable
- /// poll-one(pollable);
+ /// pollable.block();
  /// let Ok(n) = this.check-write(); // eliding error handling
  /// let len = min(n, contents.len());
  /// let (chunk, rest) = contents.split_at(len);
@@ -140,7 +140,7 @@ interface streams {
  /// }
  /// this.flush();
  /// // Wait for completion of `flush`
- /// poll-one(pollable);
+ /// pollable.block();
  /// // Check for any errors that arose during `flush`
  /// let _ = this.check-write(); // eliding error handling
  /// ```
@@ -178,7 +178,7 @@ interface streams {
 
  /// Write zeroes to a stream.
  ///
- /// this should be used precisely like `write` with the exact same
+ /// This should be used precisely like `write` with the exact same
  /// preconditions (must use check-write first), but instead of
  /// passing a list of bytes, you simply pass the number of zero-bytes
  /// that should be written.
@@ -199,15 +199,15 @@ interface streams {
  /// let pollable = this.subscribe();
  /// while num_zeroes != 0 {
  /// // Wait for the stream to become writable
- /// poll-one(pollable);
+ /// pollable.block();
  /// let Ok(n) = this.check-write(); // eliding error handling
  /// let len = min(n, num_zeroes);
  /// this.write-zeroes(len); // eliding error handling
  /// num_zeroes -= len;
  /// }
  /// this.flush();
  /// // Wait for completion of `flush`
- /// poll-one(pollable);
+ /// pollable.block();
  /// // Check for any errors that arose during `flush`
  /// let _ = this.check-write(); // eliding error handling
  /// ```

wit/imports.wit

@@ -0,0 +1,20 @@
+package wasi:cli@0.2.0-rc-2023-11-10;
+
+world imports {
+ include wasi:clocks/imports@0.2.0-rc-2023-11-10;
+ include wasi:filesystem/imports@0.2.0-rc-2023-11-10;
+ include wasi:sockets/imports@0.2.0-rc-2023-11-10;
+ include wasi:random/imports@0.2.0-rc-2023-11-10;
+ include wasi:io/imports@0.2.0-rc-2023-11-10;
+
+ import environment;
+ import exit;
+ import stdin;
+ import stdout;
+ import stderr;
+ import terminal-input;
+ import terminal-output;
+ import terminal-stdin;
+ import terminal-stdout;
+ import terminal-stderr;
+}