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Remove build script from serde_derive

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The current serde_derive's MSRV is 1.56, and both underscore consts and
ptr::addr_of! are always available.
This commit is contained in:
Taiki Endo
2023-05-06 05:34:38 +09:00
parent 99f165b45a
commit ef2a7c753f
5 changed files with 10 additions and 83 deletions
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serde_derive/src/pretend.rs
+7 -22
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@@ -97,29 +97,14 @@ fn pretend_fields_used_struct_packed(cont: &Container, fields: &[Field]) -> Toke
let members = fields.iter().map(|field| &field.member).collect::<Vec<_>>();
#[cfg(not(no_ptr_addr_of))]
{
quote! {
match _serde::__private::None::<&#type_ident #ty_generics> {
_serde::__private::Some(__v @ #type_ident { #(#members: _),* }) => {
#(
let _ = _serde::__private::ptr::addr_of!(__v.#members);
)*
}
_ => {}
}
}
}
#[cfg(no_ptr_addr_of)]
{
let placeholders = (0usize..).map(|i| format_ident!("__v{}", i));
quote! {
match _serde::__private::None::<#type_ident #ty_generics> {
_serde::__private::Some(#type_ident { #(#members: #placeholders),* }) => {}
_ => {}
quote! {
match _serde::__private::None::<&#type_ident #ty_generics> {
_serde::__private::Some(__v @ #type_ident { #(#members: _),* }) => {
#(
let _ = _serde::__private::ptr::addr_of!(__v.#members);
)*
}
_ => {}
}
}
}