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feat(derive): Expose control over Actions #3794

Merged
merged 2 commits into from Jun 6, 2022
Merged

feat(derive): Expose control over Actions #3794

merged 2 commits into from Jun 6, 2022

Commits on Jun 6, 2022

  1. feat(parser): Allow querying whether actions take values

    @epage
    epage committed Jun 6, 2022
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  2. feat(derive): Expose control over Actions 

    This is the derive support for clap-rs#3774 (see also clap-rs#3775, clap-rs#3777)

This combined with `value_parser` replaces `parser`.  The main
frustration with this is that `ArgAction::Count` (the replacement for
`parse(from_occurrences)` must be a `u64`.  We could come up with a
magic attribute that is meant to be the value parser's parsed type.  We
could then use `TryFrom` to convert the parsed type to the user's type
to allow more.  That is an exercise for the future.  Alternatively, we
have clap-rs#3792.

Prep for this included
- clap-rs#3782
- clap-rs#3783
- clap-rs#3786
- clap-rs#3789
- clap-rs#3793
    @epage
    epage committed Jun 6, 2022
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