Python: Move classes for lists of AST nodes into AstExtended.qll

Author: markshannon

python/ql/src/python.qll

@@ -11,7 +11,6 @@ import semmle.python.Stmts
 import semmle.python.Exprs
 import semmle.python.Keywords
 import semmle.python.Comprehensions
-import semmle.python.Lists
 import semmle.python.Flow
 import semmle.python.Metrics
 import semmle.python.Constants

python/ql/src/semmle/python/AstExtended.qll

@@ -172,3 +172,59 @@ class StringPartList extends StringPartList_ {
 
 }
 
+/* **** Lists ***/
+
+/** A parameter list */
+class ParameterList extends @py_parameter_list {
+
+    Function getParent() {
+        py_parameter_lists(this, result)
+    }
+
+    /** Gets a parameter */
+    Parameter getAnItem() {
+        /* Item can be a Name or a Tuple, both of which are expressions */
+        py_exprs(result, _, this, _)
+    }
+
+    /** Gets the nth parameter */
+    Parameter getItem(int index) {
+        /* Item can be a Name or a Tuple, both of which are expressions */
+        py_exprs(result, _, this, index)
+    }
+
+    string toString() {
+        result = "ParameterList"
+    }
+}
+
+/** A list of Comprehensions (for generating parts of a set, list or dictionary comprehension) */
+class ComprehensionList extends ComprehensionList_ {
+
+}
+
+/** A list of expressions */
+class ExprList extends ExprList_ {
+
+}
+
+
+library class DictItemList extends DictItemList_ {
+
+}
+
+library class DictItemListParent extends DictItemListParent_ {
+
+}
+
+/** A list of strings (the primitive type string not Bytes or Unicode) */
+class StringList extends StringList_ {
+
+}
+
+/** A list of aliases in an import statement */
+class AliasList extends AliasList_ {
+
+}
+
+