IDL parser: implement Stringifier production

Emit a node with class 'Stringifier' for all stringifier variants.
If the stringifier is an attribute, this node has a child node that
represents the attribute. If the stringifier is an operation (named
or unnamed) the node has a child node that represents the operation.

BUG=306606

Review URL: https://codereview.chromium.org/329163002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@279097 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 44 insertions, 3 deletions

diff --git a/tools/idl_parser/idl_parser.py b/tools/idl_parser/idl_parser.py
index fabe2da..a8cd82f 100755
--- a/tools/idl_parser/idl_parser.py
+++ b/tools/idl_parser/idl_parser.py
@@ -438,15 +438,31 @@ class IDLParser(object):
     p[0] = ListFromConcat(self.BuildAttribute('TYPE', 'float'),
                           self.BuildAttribute('VALUE', val))
 
-  # [31] Removed unsupported: Serializer, Stringifier
+  # [31] Removed unsupported: Serializer
   def p_AttributeOrOperationOrIterator(self, p):
-    """AttributeOrOperationOrIterator : StaticMember
+    """AttributeOrOperationOrIterator : Stringifier
+                                      | StaticMember
                                       | Attribute
                                       | OperationOrIterator"""
     p[0] = p[1]
 
   # [32-37] NOT IMPLEMENTED (Serializer)
-  # [38-39] FIXME: NOT IMPLEMENTED (Stringifier) http://crbug.com/306606
+
+  # [38]
+  def p_Stringifier(self, p):
+    """Stringifier : STRINGIFIER StringifierRest"""
+    p[0] = self.BuildProduction('Stringifier', p, 1, p[2])
+
+  # [39]
+  def p_StringifierRest(self, p):
+    """StringifierRest : AttributeRest
+                       | ReturnType OperationRest
+                       | ';'"""
+    if len(p) == 3:
+      p[2].AddChildren(p[1])
+      p[0] = p[2]
+    elif p[1] != ';':
+      p[0] = p[1]
 
   # [40]
   def p_StaticMember(self, p):
diff --git a/tools/idl_parser/test_parser/interface_web.idl b/tools/idl_parser/test_parser/interface_web.idl
index accbf35..da1dfcd 100644
--- a/tools/idl_parser/test_parser/interface_web.idl
+++ b/tools/idl_parser/test_parser/interface_web.idl
@@ -137,3 +137,28 @@ interface MyIFaceSpecials {
   getter double (DOMString property);
   long long [5][6] GetFiveSix(SomeType arg);
 };
+
+/* TREE
+ *Interface(MyIFaceStringifiers)
+ *  Stringifier()
+ *  Stringifier()
+ *    Operation(_unnamed_)
+ *      Arguments()
+ *      Type()
+ *        PrimitiveType(DOMString)
+ *  Stringifier()
+ *    Operation(namedStringifier)
+ *      Arguments()
+ *      Type()
+ *        PrimitiveType(DOMString)
+ *  Stringifier()
+ *    Attribute(stringValue)
+ *      Type()
+ *        PrimitiveType(DOMString)
+ */
+interface MyIFaceStringifiers {
+  stringifier;
+  stringifier DOMString ();
+  stringifier DOMString namedStringifier();
+  stringifier attribute DOMString stringValue;
+};