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fix: do not use extend, useless

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This commit is contained in:
Miaxos 2021-10-28 01:42:06 +00:00
parent fa34a8ae68
commit cf407adce0
1 changed files with 4 additions and 10 deletions
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14
derive/src/simple_object.rs
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@ -218,25 +218,19 @@ pub fn generate(object_args: &args::SimpleObject) -> GeneratorResult<TokenStream
},
Some(DerivedIntoCoercion::VecToVec) => quote! {
{
let mut result = vec![];
::std::iter::Extend::extend(&mut result, ::std::iter::Iterator::map(::std::iter::IntoIterator::into_iter(#block), |x| ::std::convert::Into::into(::std::clone::Clone::clone(&x))));
result
::std::iter::Iterator::collect(::std::iter::Iterator::map(::std::iter::IntoIterator::into_iter(#block), |x| ::std::convert::Into::into(::std::clone::Clone::clone(&x))))
}
},
Some(DerivedIntoCoercion::OptionVecToOptionVec) => quote! {
::std::option::Option::and_then(#block, |value| ::std::option::Option::Some({
let mut result = vec![];
::std::iter::Extend::extend(&mut result, ::std::iter::Iterator::map(::std::iter::IntoIterator::into_iter(value), |x| ::std::convert::Into::into(::std::clone::Clone::clone(&x))));
result
::std::iter::Iterator::collect(::std::iter::Iterator::map(::std::iter::IntoIterator::into_iter(value), |x| ::std::convert::Into::into(::std::clone::Clone::clone(&x))))
}))
},
Some(DerivedIntoCoercion::VecOptionToVecOption) => quote! {
{
let mut result = vec![];
::std::iter::Extend::extend(&mut result, ::std::iter::Iterator::map(::std::iter::IntoIterator::into_iter(#block), |x| ::std::option::Option::and_then(x, |value| ::std::option::Option::Some(
::std::iter::Iterator::collect(::std::iter::Iterator::map(::std::iter::IntoIterator::into_iter(#block), |x| ::std::option::Option::and_then(x, |value| ::std::option::Option::Some(
::std::convert::Into::into(value)
))));
result
))))
}
},
// If the field is not derived, we follow the normal process.