feat: add wasip3 example

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

Author: asteurer

examples/wasip2/.gitignore

@@ -0,0 +1,9 @@
+go.mod
+*.wasm
+wasi_*
+export_wasi_http_handler/wit_bindings.go
+wit_*
+bin
+.crates.toml
+.crates2.json
+go-*-bootstrap*

examples/wasip2/Makefile

@@ -1,9 +1,9 @@
 generate-bindings:
-    wit-bindgen go --world bindings --out-dir . wit
+	wit-bindgen go --world bindings --out-dir . wit
 
 build-component: generate-bindings
-    componentize-go --world bindings componentize
+	componentize-go --world bindings componentize
 
 .PHONY: run
 run: build-component
-    wasmtime serve -Sp3,cli main.wasm
+	wasmtime serve -Sp3,cli main.wasm

examples/wasip2/wit/deps/wasi-cli-0.2.0/package.wit

@@ -0,0 +1,20 @@
+package wasi:cli@0.2.0;
+
+interface stdout {
+  use wasi:io/streams@0.2.0.{output-stream};
+
+  get-stdout: func() -> output-stream;
+}
+
+interface stderr {
+  use wasi:io/streams@0.2.0.{output-stream};
+
+  get-stderr: func() -> output-stream;
+}
+
+interface stdin {
+  use wasi:io/streams@0.2.0.{input-stream};
+
+  get-stdin: func() -> input-stream;
+}
+

examples/wasip2/wit/deps/wasi-clocks-0.2.0/package.wit

@@ -0,0 +1,29 @@
+package wasi:clocks@0.2.0;
+
+interface monotonic-clock {
+  use wasi:io/poll@0.2.0.{pollable};
+
+  type instant = u64;
+
+  type duration = u64;
+
+  now: func() -> instant;
+
+  resolution: func() -> duration;
+
+  subscribe-instant: func(when: instant) -> pollable;
+
+  subscribe-duration: func(when: duration) -> pollable;
+}
+
+interface wall-clock {
+  record datetime {
+    seconds: u64,
+    nanoseconds: u32,
+  }
+
+  now: func() -> datetime;
+
+  resolution: func() -> datetime;
+}
+