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feat(builder): Expose ArgAction #3774

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merged 9 commits into from Jun 1, 2022
Merged

feat(builder): Expose ArgAction #3774

merged 9 commits into from Jun 1, 2022

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epage
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@epage epage commented Jun 1, 2022

This allows users to override the defaults which is a step towards #3405 and many other improvements.

@epage epage merged commit 20ed49a into clap-rs:master Jun 1, 2022
@epage epage deleted the action branch June 1, 2022 02:25
epage added a commit to epage/clap that referenced this pull request Jun 6, 2022
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
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