Script-generated tests for Servo_* gecko bindings

1 files changed, 37 insertions, 0 deletions

diff --git a/components/style/binding_tools/check_bindings.py b/components/style/binding_tools/check_bindings.py
new file mode 100644
index 00000000000..67a8f6de175
--- /dev/null
+++ b/components/style/binding_tools/check_bindings.py
@@ -0,0 +1,37 @@
+# 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/.
+
+import os
+import re
+
+LICENSE = """\
+/* 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/. */
+
+/* automatically generated by check_bindings.py. */
+
+"""
+
+BINDINGS_PATH = os.path.join("..", "gecko_bindings")
+INPUT_FILE = os.path.join(BINDINGS_PATH, "bindings.rs")
+OUTPUT_FILE = os.path.join(BINDINGS_PATH, "check_bindings.rs")
+
+TEMPLATE = """\
+    [ Servo_{name}, bindings::Servo_{name} ];
+"""
+
+with open(INPUT_FILE, "r") as bindings, open(OUTPUT_FILE, "w+") as tests:
+    tests.write(LICENSE)
+    tests.write("fn assert_types() {\n")
+
+    pattern = re.compile("fn\s*Servo_([_a-zA-Z0-9]+)\s*\(")
+
+    for line in bindings:
+        match = pattern.search(line)
+
+        if match:
+            tests.write(TEMPLATE.format(name=match.group(1)))
+
+    tests.write("}\n")