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-rw-r--r--python/tidy/servo_tidy/tidy.py25
-rw-r--r--python/tidy/servo_tidy_tests/lib.rs14
-rw-r--r--python/tidy/servo_tidy_tests/test_tidy.py8
3 files changed, 47 insertions, 0 deletions
diff --git a/python/tidy/servo_tidy/tidy.py b/python/tidy/servo_tidy/tidy.py
index b0e420988d7..98eb8fa2d94 100644
--- a/python/tidy/servo_tidy/tidy.py
+++ b/python/tidy/servo_tidy/tidy.py
@@ -385,11 +385,14 @@ def check_rust(file_name, lines):
import_block = False
whitespace = False
+ is_lib_rs_file = file_name.endswith("lib.rs")
+
prev_use = None
prev_open_brace = False
current_indent = 0
prev_crate = {}
prev_mod = {}
+ prev_feature_name = ""
decl_message = "{} is not in alphabetical order"
decl_expected = "\n\t\033[93mexpected: {}\033[0m"
@@ -517,6 +520,28 @@ def check_rust(file_name, lines):
+ decl_found.format(crate_name))
prev_crate[indent] = crate_name
+ # check alphabetical order of feature attributes in lib.rs files
+ if is_lib_rs_file:
+ match = re.search(r"#!\[feature\((.*)\)\]", line)
+
+ if match:
+ features = map(lambda w: w.strip(), match.group(1).split(','))
+ sorted_features = sorted(features)
+ if sorted_features != features:
+ yield(idx + 1, decl_message.format("feature attribute")
+ + decl_expected.format(tuple(sorted_features))
+ + decl_found.format(tuple(features)))
+
+ if prev_feature_name > sorted_features[0]:
+ yield(idx + 1, decl_message.format("feature attribute")
+ + decl_expected.format(prev_feature_name + " after " + sorted_features[0])
+ + decl_found.format(prev_feature_name + " before " + sorted_features[0]))
+
+ prev_feature_name = sorted_features[0]
+ else:
+ # not a feature attribute line, so empty previous name
+ prev_feature_name = ""
+
# imports must be in the same line, alphabetically sorted, and merged
# into a single import block
if line.startswith("use "):
diff --git a/python/tidy/servo_tidy_tests/lib.rs b/python/tidy/servo_tidy_tests/lib.rs
new file mode 100644
index 00000000000..4ca395d8e6d
--- /dev/null
+++ b/python/tidy/servo_tidy_tests/lib.rs
@@ -0,0 +1,14 @@
+/* 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/. */
+
+#![feature(def)]
+#![feature(abc)]
+
+#![feature(abc, def, ghi)]
+#![feature(aaa)]
+
+#![feature(def, ghi, abc)]
+
+#![feature(ghi)]
+#![feature(abd, hef)]
diff --git a/python/tidy/servo_tidy_tests/test_tidy.py b/python/tidy/servo_tidy_tests/test_tidy.py
index 7bec2c61718..d997bb00f82 100644
--- a/python/tidy/servo_tidy_tests/test_tidy.py
+++ b/python/tidy/servo_tidy_tests/test_tidy.py
@@ -127,6 +127,14 @@ class CheckTidiness(unittest.TestCase):
self.assertEqual('extra space after test_fun', errors.next()[2])
self.assertNoMoreErrors(errors)
+ feature_errors = tidy.collect_errors_for_files(iterFile('lib.rs'), [], [tidy.check_rust], print_text=False)
+
+ self.assertTrue('feature attribute is not in alphabetical order' in feature_errors.next()[2])
+ self.assertTrue('feature attribute is not in alphabetical order' in feature_errors.next()[2])
+ self.assertTrue('feature attribute is not in alphabetical order' in feature_errors.next()[2])
+ self.assertTrue('feature attribute is not in alphabetical order' in feature_errors.next()[2])
+ self.assertNoMoreErrors(feature_errors)
+
def test_spec_link(self):
tidy.SPEC_BASE_PATH = base_path
errors = tidy.collect_errors_for_files(iterFile('speclink.rs'), [], [tidy.check_spec], print_text=False)