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fix(derive): Move subcommands to new 'get_many' API

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Ed Page 2022-05-13 15:31:34 -05:00
parent 41f13bd0ce
commit 72c44a32e5
1 changed files with 10 additions and 14 deletions
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24
clap_derive/src/derives/subcommand.rs
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@ -430,20 +430,12 @@ fn gen_from_arg_matches(
),
};
let (span, str_ty, values_of) = match subty_if_name(ty, "Vec") {
let (span, str_ty) = match subty_if_name(ty, "Vec") {
Some(subty) => {
if is_simple_ty(subty, "String") {
(
subty.span(),
quote!(::std::string::String),
quote!(values_of),
)
(subty.span(), quote!(::std::string::String))
} else if is_simple_ty(subty, "OsString") {
(
subty.span(),
quote!(::std::ffi::OsString),
quote!(values_of_os),
)
(subty.span(), quote!(::std::ffi::OsString))
} else {
abort!(
ty.span(),
@ -460,7 +452,7 @@ fn gen_from_arg_matches(
),
};
ext_subcmd = Some((span, &variant.ident, str_ty, values_of));
ext_subcmd = Some((span, &variant.ident, str_ty));
None
} else {
Some((variant, attrs))
@ -518,11 +510,15 @@ fn gen_from_arg_matches(
});
let wildcard = match ext_subcmd {
Some((span, var_name, str_ty, values_of)) => quote_spanned! { span=>
Some((span, var_name, str_ty)) => quote_spanned! { span=>
::std::result::Result::Ok(#name::#var_name(
::std::iter::once(#str_ty::from(#subcommand_name_var))
.chain(
#sub_arg_matches_var.#values_of("").into_iter().flatten().map(#str_ty::from)
#sub_arg_matches_var
.get_many::<#str_ty>("")
.expect("unexpected type")
.into_iter().flatten() // `""` isn't present, bug in `unstable-v4`
.map(#str_ty::from)
)
.collect::<::std::vec::Vec<_>>()
))