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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/213011">213011</a></dd>
<dt>Author</dt> <dd>simon.fraser@apple.com</dd>
<dt>Date</dt> <dd>2017-02-26 10:36:30 -0800 (Sun, 26 Feb 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Make check-webkit-style do some basic validation for CSSProperties.json
https://bugs.webkit.org/show_bug.cgi?id=168874

Reviewed by Zalan Bujtas.

Do checking of the keys and the value types.

Print exceptions if they occur; previously, coding errors caused silent failure.

* Scripts/webkitpy/style/checker.py:
(CheckerDispatcher._create_checker):
* Scripts/webkitpy/style/checkers/jsonchecker.py:
(JSONFeaturesChecker.check):
(JSONCSSPropertiesChecker):
(JSONCSSPropertiesChecker.check):
(JSONCSSPropertiesChecker.validate_comment):
(JSONCSSPropertiesChecker.validate_type):
(JSONCSSPropertiesChecker.validate_boolean):
(JSONCSSPropertiesChecker.validate_string):
(JSONCSSPropertiesChecker.validate_array):
(JSONCSSPropertiesChecker.validate_codegen_properties):
(JSONCSSPropertiesChecker.check_property):
(JSONCSSPropertiesChecker.check_codegen_properties):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkToolsChangeLog">trunk/Tools/ChangeLog</a></li>
<li><a href="#trunkToolsScriptswebkitpystylecheckerpy">trunk/Tools/Scripts/webkitpy/style/checker.py</a></li>
<li><a href="#trunkToolsScriptswebkitpystylecheckersjsoncheckerpy">trunk/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkToolsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Tools/ChangeLog (213010 => 213011)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/ChangeLog        2017-02-26 18:31:13 UTC (rev 213010)
+++ trunk/Tools/ChangeLog        2017-02-26 18:36:30 UTC (rev 213011)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2017-02-25  Simon Fraser  &lt;simon.fraser@apple.com&gt;
+
+        Make check-webkit-style do some basic validation for CSSProperties.json
+        https://bugs.webkit.org/show_bug.cgi?id=168874
+
+        Reviewed by Zalan Bujtas.
+
+        Do checking of the keys and the value types.
+        
+        Print exceptions if they occur; previously, coding errors caused silent failure.
+
+        * Scripts/webkitpy/style/checker.py:
+        (CheckerDispatcher._create_checker):
+        * Scripts/webkitpy/style/checkers/jsonchecker.py:
+        (JSONFeaturesChecker.check):
+        (JSONCSSPropertiesChecker):
+        (JSONCSSPropertiesChecker.check):
+        (JSONCSSPropertiesChecker.validate_comment):
+        (JSONCSSPropertiesChecker.validate_type):
+        (JSONCSSPropertiesChecker.validate_boolean):
+        (JSONCSSPropertiesChecker.validate_string):
+        (JSONCSSPropertiesChecker.validate_array):
+        (JSONCSSPropertiesChecker.validate_codegen_properties):
+        (JSONCSSPropertiesChecker.check_property):
+        (JSONCSSPropertiesChecker.check_codegen_properties):
+
</ins><span class="cx"> 2017-02-26  Chris Dumez  &lt;cdumez@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         HitTestResult's linkSuggestedFilename should sanitize download attribute
</span></span></pre></div>
<a id="trunkToolsScriptswebkitpystylecheckerpy"></a>
<div class="modfile"><h4>Modified: trunk/Tools/Scripts/webkitpy/style/checker.py (213010 => 213011)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/Scripts/webkitpy/style/checker.py        2017-02-26 18:31:13 UTC (rev 213010)
+++ trunk/Tools/Scripts/webkitpy/style/checker.py        2017-02-26 18:36:30 UTC (rev 213011)
</span><span class="lines">@@ -47,6 +47,7 @@
</span><span class="cx"> from checkers.jsonchecker import JSONChecker
</span><span class="cx"> from checkers.jsonchecker import JSONContributorsChecker
</span><span class="cx"> from checkers.jsonchecker import JSONFeaturesChecker
</span><ins>+from checkers.jsonchecker import JSONCSSPropertiesChecker
</ins><span class="cx"> from checkers.messagesin import MessagesInChecker
</span><span class="cx"> from checkers.png import PNGChecker
</span><span class="cx"> from checkers.python import PythonChecker
</span><span class="lines">@@ -619,6 +620,8 @@
</span><span class="cx">                     checker = ContributorsChecker(file_path, handle_style_error)
</span><span class="cx">             elif basename == 'features.json':
</span><span class="cx">                 checker = JSONFeaturesChecker(file_path, handle_style_error)
</span><ins>+            elif basename == 'CSSProperties.json':
+                checker = JSONCSSPropertiesChecker(file_path, handle_style_error)
</ins><span class="cx">             else:
</span><span class="cx">                 checker = JSONChecker(file_path, handle_style_error)
</span><span class="cx">         elif file_type == FileType.PYTHON:
</span></span></pre></div>
<a id="trunkToolsScriptswebkitpystylecheckersjsoncheckerpy"></a>
<div class="modfile"><h4>Modified: trunk/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py (213010 => 213011)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py        2017-02-26 18:31:13 UTC (rev 213010)
+++ trunk/Tools/Scripts/webkitpy/style/checkers/jsonchecker.py        2017-02-26 18:36:30 UTC (rev 213011)
</span><span class="lines">@@ -26,7 +26,6 @@
</span><span class="cx"> import re
</span><span class="cx"> from sets import Set
</span><span class="cx"> 
</span><del>-
</del><span class="cx"> class JSONChecker(object):
</span><span class="cx">     &quot;&quot;&quot;Processes JSON lines for checking style.&quot;&quot;&quot;
</span><span class="cx"> 
</span><span class="lines">@@ -107,5 +106,105 @@
</span><span class="cx">                 if 'specification' in feature:
</span><span class="cx">                     if feature['specification'] not in specification_name_set:
</span><span class="cx">                         self._handle_style_error(0, 'json/syntax', 5, 'The feature &quot;%s&quot; has a specification field but no specification of that name exists.' % feature_name)
</span><del>-        except:
</del><ins>+        except Exception as e:
+            print(e)
</ins><span class="cx">             pass
</span><ins>+
+
+class JSONCSSPropertiesChecker(JSONChecker):
+    &quot;&quot;&quot;Processes CSSProperties.json&quot;&quot;&quot;
+
+    def check(self, lines):
+        super(JSONCSSPropertiesChecker, self).check(lines)
+
+        try:
+            properties_definition = json.loads('\n'.join(lines) + '\n')
+            if 'properties' not in properties_definition:
+                self._handle_style_error(0, 'json/syntax', 5, '&quot;properties&quot; key not found, the key is mandatory.')
+                return
+
+            properties = properties_definition['properties']
+            if not isinstance(properties, dict):
+                self._handle_style_error(0, 'json/syntax', 5, '&quot;properties&quot; is not a dictionary.')
+                return
+
+            for property_name, property_value in properties.items():
+                self.check_property(property_name, property_value)
+
+        except Exception as e:
+            print(e)
+            pass
+
+    def validate_comment(self, property_name, property_key, key, value):
+        return
+
+    def validate_type(self, property_name, property_key, key, value, expected_type):
+        if not isinstance(value, expected_type):
+            self._handle_style_error(0, 'json/syntax', 5, '&quot;%s&quot; in &quot;%s&quot; %s is not of %s.' % (key, property_name, property_key, expected_type))
+
+    def validate_boolean(self, property_name, property_key, key, value):
+        self.validate_type(property_name, property_key, key, value, bool)
+
+    def validate_string(self, property_name, property_key, key, value):
+        self.validate_type(property_name, property_key, key, value, basestring)
+
+    def validate_array(self, property_name, property_key, key, value):
+        self.validate_type(property_name, property_key, key, value, list)
+
+    def validate_codegen_properties(self, property_name, property_key, key, value):
+        if isinstance(value, list):
+            for entry in value:
+                self.check_codegen_properties(property_name, entry)
+        else:
+            self.check_codegen_properties(property_name, value)
+
+    def check_property(self, property_name, value):
+        keys_and_validators = {
+            '*': self.validate_comment,
+            'animatable': self.validate_boolean,
+            'inherited': self.validate_boolean,
+            'values': self.validate_array,
+            'codegen-properties': self.validate_codegen_properties,
+        }
+
+        for key, value in value.items():
+            if key not in keys_and_validators:
+                self._handle_style_error(0, 'json/syntax', 5, 'dictionary for property &quot;%s&quot; has unexpected key &quot;%s&quot;.' % (property_name, key))
+                return
+
+            keys_and_validators[key](property_name, &quot;&quot;, key, value)
+
+    def check_codegen_properties(self, property_name, codegen_properties):
+        if not isinstance(codegen_properties, (dict, list)):
+            self._handle_style_error(0, 'json/syntax', 5, '&quot;codegen_properties&quot; for property &quot;%s&quot; is not a dictionary or array.' % property_name)
+            return
+
+        keys_and_validators = {
+            'aliases': self.validate_array,
+            'auto-functions': self.validate_boolean,
+            'conditional-converter': self.validate_string,
+            'converter': self.validate_string,
+            'custom': self.validate_string,
+            'enable-if': self.validate_string,
+            'fill-layer-property': self.validate_boolean,
+            'font-property': self.validate_boolean,
+            'getter': self.validate_string,
+            'high-priority': self.validate_boolean,
+            'initial': self.validate_string,
+            'internal-only': self.validate_boolean,
+            'longhands': self.validate_array,
+            'name-for-methods': self.validate_string,
+            'no-default-color': self.validate_boolean,
+            'setter': self.validate_string,
+            'skip-builder': self.validate_boolean,
+            'skip-codegen': self.validate_boolean,
+            'svg': self.validate_boolean,
+            'visited-link-color-support': self.validate_boolean,
+        }
+
+        for key, value in codegen_properties.items():
+            if key not in keys_and_validators:
+                self._handle_style_error(0, 'json/syntax', 5, 'codegen_properties for property &quot;%s&quot; has unexpected key &quot;%s&quot;.' % (property_name, key))
+                return
+
+            keys_and_validators[key](property_name, 'codegen_properties', key, value)
</ins></span></pre>
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