Bysyncify => Asyncify (#2226)

After some discussion this seems like a less confusing name: what the pass does is "asyncify" code, after all.

The one downside is the name overlaps with the old emscripten "Asyncify" utility, which we'll need to clarify in the docs there.

This keeps the old --bysyncify flag around for now, which is helpful for avoiding temporary breakage on CI as we move the emscripten side as well.

1 files changed, 29 insertions, 0 deletions

diff --git a/test/unit/test_asyncify.py b/test/unit/test_asyncify.py
new file mode 100644
index 000000000..479d24cab
--- /dev/null
+++ b/test/unit/test_asyncify.py
@@ -0,0 +1,29 @@
+import os
+
+from scripts.test.shared import WASM_OPT, WASM_DIS, WASM_SHELL, NODEJS, run_process
+from utils import BinaryenTestCase
+
+
+class AsyncifyTest(BinaryenTestCase):
+  def test_asyncify_js(self):
+    def test(args):
+      print(args)
+      run_process(WASM_OPT + args + [self.input_path('asyncify-sleep.wast'), '--asyncify', '-o', 'a.wasm'])
+      run_process(WASM_OPT + args + [self.input_path('asyncify-coroutine.wast'), '--asyncify', '-o', 'b.wasm'])
+      run_process(WASM_OPT + args + [self.input_path('asyncify-stackOverflow.wast'), '--asyncify', '-o', 'c.wasm'])
+      print('  file size: %d' % os.path.getsize('a.wasm'))
+      run_process([NODEJS, self.input_path('asyncify.js')])
+
+    test(['-g'])
+    test([])
+    test(['-O1'])
+    test(['--optimize-level=1'])
+    test(['-O3'])
+    test(['-Os', '-g'])
+
+  def test_asyncify_pure_wasm(self):
+    run_process(WASM_OPT + [self.input_path('asyncify-pure.wast'), '--asyncify', '-o', 'a.wasm'])
+    run_process(WASM_DIS + ['a.wasm', '-o', 'a.wast'])
+    output = run_process(WASM_SHELL + ['a.wast'], capture_output=True).stdout
+    with open(self.input_path('asyncify-pure.txt')) as f:
+      self.assertEqual(f.read(), output)