Reduce spurious "continue" statements

uncompyle6/semantics/pysource.py

@@ -519,6 +519,25 @@ class SourceWalker(GenericASTTraversal, object):
                     node == AST('return_stmt',
                                 [AST('ret_expr', [NONE]), Token('RETURN_VALUE')]))
 
+    def n_continue_stmt(self, node):
+        if node[0] == 'CONTINUE':
+            t = node[0]
+            if not t.linestart:
+                # Artificially-added "continue" statements derived from JUMP_ABSOLUTE
+                # don't have line numbers associated with them.
+                # If this is a CONTINUE is to the same target as a JUMP_ABSOLUTE following it,
+                # then the "continue" can be suppressed.
+                op, offset = t.op, t.offset
+                next_offset = self.scanner.next_offset(op, offset)
+                scanner = self.scanner
+                code = scanner.code
+                next_inst = code[next_offset]
+                if (scanner.opc.opname[next_inst] == 'JUMP_ABSOLUTE'
+                    and t.pattr == code[next_offset+1]):
+                    # Suppress "continue"
+                    self.prune()
+        self.default(node)
+
     def n_return_stmt(self, node):
         if self.params['isLambda']:
             self.preorder(node[0])