1 files changed, 69 insertions, 0 deletions
diff --git a/scripts/spidermonkify.py b/scripts/spidermonkify.py
new file mode 100644
index 000000000..1632c20fd
--- /dev/null
+++ b/scripts/spidermonkify.py
@@ -0,0 +1,69 @@
+#! /usr/bin/env python
+
+#   Copyright 2016 WebAssembly Community Group participants
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+'''
+A bunch of hackish fixups for testing of SpiderMonkey support. We should
+get rid of these ASAP.
+
+This is meant to be run using BINARYEN_SCRIPTS in emcc, and not standalone.
+'''
+
+import os
+import shutil
+import subprocess
+import sys
+
+import emscripten
+
+binaryen_root = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+
+js_target = sys.argv[1]
+wast_target = sys.argv[2]
+
+wasm_target = wast_target[:-5] + '.wasm'
+
+base_wast_target = os.path.basename(wast_target)
+base_wasm_target = os.path.basename(wasm_target)
+
+
+def fix(js, before, after):
+  assert js.count(before) == 1
+  return js.replace(before, after)
+
+# fix up js
+js = open(js_target).read()
+# use the wasm, not wast
+js = js.replace('"' + base_wast_target + '"', '"' + base_wasm_target + '"')
+js = js.replace("'" + base_wast_target + "'", "'" + base_wasm_target + "'")
+open(js_target, 'w').write(js)
+shutil.copyfile(wast_target + '.mappedGlobals', wasm_target + '.mappedGlobals')
+
+# fix up wast
+wast = open(wast_target).read()
+# memory
+memory_start = wast.find('(memory') + 1
+memory_end = wast.find(')', memory_start)
+wast = (wast[:memory_end + 1] +
+        ' (export "memory" memory) ' +
+        wast[memory_end + 1:])
+open(wast_target, 'w').write(wast)
+
+# convert to binary using spidermonkey
+subprocess.check_call(
+    emscripten.shared.SPIDERMONKEY_ENGINE +
+    ['-e', 'os.file.writeTypedArrayToFile("' + wasm_target +
+     '", new Uint8Array(wasmTextToBinary(os.file.readFile("' +
+     wast_target + '"))))'])