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-rw-r--r--layout/style/GenerateCSSPropertyID.py40
1 files changed, 40 insertions, 0 deletions
diff --git a/layout/style/GenerateCSSPropertyID.py b/layout/style/GenerateCSSPropertyID.py
new file mode 100644
index 0000000000..d2e212b2ca
--- /dev/null
+++ b/layout/style/GenerateCSSPropertyID.py
@@ -0,0 +1,40 @@
+# 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 runpy
+import string
+
+
+def generate(output, template, dataFile):
+ with open(template, "r") as f:
+ template = string.Template(f.read())
+ data = runpy.run_path(dataFile)["data"]
+
+ longhand_count = 0
+ shorthand_count = 0
+ alias_count = 0
+ property_ids = []
+ for prop in data:
+ if prop.type() != "alias":
+ if prop.type() == "longhand":
+ assert shorthand_count == 0
+ longhand_count += 1
+ else:
+ assert alias_count == 0
+ shorthand_count += 1
+ property_ids.append("eCSSProperty_{}".format(prop.id))
+ else:
+ alias_count += 1
+ property_ids.append("eCSSPropertyAlias_{}".format(prop.alias_id))
+
+ output.write("/* THIS IS AN AUTOGENERATED FILE. DO NOT EDIT */\n\n")
+ output.write(
+ template.substitute(
+ {
+ "property_ids": "\n".join(" {},".format(p) for p in property_ids),
+ "longhand_count": property_ids[longhand_count],
+ "shorthand_count": property_ids[longhand_count + shorthand_count],
+ }
+ )
+ )