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Source file `misc_helper.ml`

ppxlib
- CHANGES
- HISTORY
- LICENSE
- README
- Library ppxlib
  - Ppxlib
- Library ppxlib.ast
  - Ppxlib_ast
- Library ppxlib.metaquot_lifters
  - Ppxlib_metaquot_lifters
- Library ppxlib.print_diff
  - Ppxlib_print_diff
- Library ppxlib.runner
  - Ppxlib_runner
- Library ppxlib.runner_as_ppx
  - Ppxlib_runner_as_ppx
- Library ppxlib.traverse_builtins
  - Ppxlib_traverse_builtins
- Library ppxlib_metaquot
  - Ppxlib_metaquot
- Library ppxlib_traverse
  - Ppxlib_traverse
- Sources
  - ppxlib
  - ppxlib.ast
  - ppxlib.metaquot_lifters
    - ppxlib_metaquot_lifters.ml
  - ppxlib.print_diff
    - ppxlib_print_diff.ml
  - ppxlib.runner
    - ppx_driver_runner.ml
    - ppxlib_runner.ml
  - ppxlib.runner_as_ppx
    - ppx_driver_runner_as_ppx.ml
    - ppxlib_runner_as_ppx.ml
  - ppxlib.traverse_builtins
    - ppxlib_traverse_builtins.ml
  - ppxlib_metaquot
    - ppxlib_metaquot.ml
  - ppxlib_traverse
    - ppxlib_traverse.ml

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let may f = function Some v -> f v | None -> ()