1 files changed, 52 insertions, 0 deletions
diff --git a/devtools/server/actors/webconsole/eager-function-allowlist.js b/devtools/server/actors/webconsole/eager-function-allowlist.js
new file mode 100644
index 0000000000..363591523d
--- /dev/null
+++ b/devtools/server/actors/webconsole/eager-function-allowlist.js
@@ -0,0 +1,52 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const idlPureAllowlist = require("resource://devtools/server/actors/webconsole/webidl-pure-allowlist.js");
+
+const natives = [];
+if (Components.Constructor && Cu) {
+  const sandbox = Cu.Sandbox(
+    Components.Constructor("@mozilla.org/systemprincipal;1", "nsIPrincipal")(),
+    {
+      invisibleToDebugger: true,
+      wantGlobalProperties: Object.keys(idlPureAllowlist),
+    }
+  );
+
+  function maybePush(maybeFunc) {
+    if (maybeFunc) {
+      natives.push(maybeFunc);
+    }
+  }
+
+  function collectMethods(obj, methods) {
+    for (const name of methods) {
+      maybePush(obj[name]);
+    }
+  }
+
+  for (const [iface, ifaceData] of Object.entries(idlPureAllowlist)) {
+    const ctor = sandbox[iface];
+    if (!ctor) {
+      continue;
+    }
+
+    if ("static" in ifaceData) {
+      collectMethods(ctor, ifaceData.static);
+    }
+
+    if ("prototype" in ifaceData) {
+      const proto = ctor.prototype;
+      if (!proto) {
+        continue;
+      }
+
+      collectMethods(proto, ifaceData.prototype);
+    }
+  }
+}
+
+module.exports = { natives };