@@
expression c;
@@
- &c->maybe_tree->object.oid
+ get_commit_tree_oid(c)

@@
expression c;
@@
- c->maybe_tree->object.oid.hash
+ get_commit_tree_oid(c)->hash

// These excluded functions must access/modify c->maybe_tree direcly.
// Note that if c->maybe_tree is written somewhere outside of these
// functions, then the recommended transformation will be bogus with
// repo_get_commit_tree() on the LHS.
@@
identifier f !~ "^(repo_get_commit_tree|get_commit_tree_in_graph_one|load_tree_for_commit|fill_commit_in_graph|parse_commit_buffer|release_commit_memory|make_virtual_commit)$";
struct commit *c;
@@
  f(...) {<...
- c->maybe_tree
+ repo_get_commit_tree(the_repository, c)
  ...>}