ci: add windows and macos jobs for checking the wasm backend too (#17451)

.github/workflows/wasm_backend_tests_ci.yml

@@ -72,24 +72,48 @@ jobs:
       - name: Build examples
         run: VTEST_ONLY=wasm ./v build-examples
 
-##  wasm-backend-macos:
-##    runs-on: macOS-12
-##    if: github.event_name != 'push' || github.event.ref == 'refs/heads/master' || github.event.repository.full_name != 'vlang/v'
-##    timeout-minutes: 121
-##    steps:
-##      - uses: actions/checkout@v3
-##
-##      - name: Build V
-##        run: make -j4 && ./v symlink -githubci
-##
-##      - name: Install binaryen as build dependency for the V WASM backend
-##        run: ./v cmd/tools/install_binaryen.vsh
-##
-##      - name: Build the V WASM backend
-##        run: ./v -cc clang -showcc -v cmd/tools/builders/wasm_builder.v
-##
-##      - name: Test the WASM backend
-##        run: ./v test vlib/v/gen/wasm/tests/
-##
-##      - name: Build examples
-##        run: VTEST_ONLY=wasm ./v build-examples
+  wasm-backend-macos:
+    runs-on: macOS-12
+    if: github.event_name != 'push' || github.event.ref == 'refs/heads/master' || github.event.repository.full_name != 'vlang/v'
+    timeout-minutes: 121
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Build V
+        run: make -j4 && ./v symlink -githubci
+
+      - name: Install binaryen as build dependency for the V WASM backend
+        run: ./v cmd/tools/install_binaryen.vsh
+
+      - name: Build the V WASM backend
+        run: ./v -cc clang -showcc -v cmd/tools/builders/wasm_builder.v
+
+      - name: Test the WASM backend
+        run: ./v test vlib/v/gen/wasm/tests/
+
+      - name: Build examples
+        run: VTEST_ONLY=wasm ./v build-examples
+
+  wasm-backend-windows:
+    runs-on: windows-2022
+    if: github.event_name != 'push' || github.event.ref == 'refs/heads/master' || github.event.repository.full_name != 'vlang/v'
+    timeout-minutes: 121
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Build V
+        run: .\make.bat -msvc
+      - name: Symlink V
+        run: .\v.exe symlink -githubci
+
+      - name: Install binaryen as build dependency for the V WASM backend
+        run: v cmd/tools/install_binaryen.vsh
+
+      - name: Build the V WASM backend
+        run: v -cc msvc -showcc -v cmd/tools/builders/wasm_builder.v
+
+      - name: Test the WASM backend
+        run: v -stats test vlib/v/gen/wasm/tests/
+
+      - name: Build examples
+        run: $env:VTEST_ONLY='wasm'; v build-examples

cmd/tools/install_binaryen.vsh

@@ -1,8 +1,9 @@
 #!/usr/bin/env -S v -raw-vsh-tmp-prefix tmp
 
-import net.http
-import json
 import os
+import net.http
+
+const github_job = os.getenv('GITHUB_JOB')
 
 struct JQ {
 	tag_name string
@@ -21,8 +22,16 @@ fn main() {
 		exit(1)
 	}
 
+	/*
+	// TODO: add retries here, github requests can fail
 	jq := http.get_text('https://api.github.com/repos/WebAssembly/binaryen/releases/latest')
 	tag := json.decode(JQ, jq)!.tag_name
+        if github_job != '' {
+                dump(jq)
+                dump(tag)
+        }
+	*/
+	tag := 'version_112'
 
 	name := $if windows {
 		'x86_64-windows'
@@ -50,9 +59,6 @@ fn main() {
 		// defer { os.rm(saveloc) or {}! }
 	}
 
-	mkdir_all(loc)!
-	println(loc)
-
 	println('Extracting `${tloc}/${fname}` to `${tloc}/binaryen` ...')
 	cmd := 'tar -xvf ${saveloc} --directory ${tloc}'
 	if os.system(cmd) != 0 {

vlib/v/gen/wasm/binaryen/binaryen.c.v

@@ -1,10 +1,19 @@
 [translated]
 module binaryen
 
+$if dynamic_binaryen ? {
+	#flag -lbinaryen
+} $else {
+	#flag -lbinaryen
 	#flag -I@VEXEROOT/thirdparty/binaryen/include
 	#flag -L@VEXEROOT/thirdparty/binaryen/lib
-#flag -lbinaryen -lstdc++
-#flag darwin -Wl,-rpath,/opt/homebrew/lib -Wl,-rpath,@VEXEROOT/thirdparty/binaryen/lib
+
+	#flag darwin -lc++ -Wl,-rpath,"@executable_path/../../../thirdparty/binaryen/lib"
+	// the following, allows linking to the binaryen package from `brew install binaryen`, without having to run cmd/tools/install_binaryen.vsh first
+	#flag darwin -I/opt/homebrew/include -L/opt/homebrew/lib -Wl,-rpath,"/opt/homebrew/lib"
+
+	#flag linux -lstdc++
+}
 
 type Index = u32
 type Type = u64