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cxx_auto_entry.rs
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cxx_auto_entry.rs
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use serde::Deserialize;
#[cfg(feature = "alloc")]
#[derive(Deserialize)]
pub struct CxxAutoEntry<'ctx> {
cxx_include: &'ctx str,
cxx_proxy_include: Option<&'ctx str>,
cxx_namespace: &'ctx str,
cxx_proxy_namespace: Option<&'ctx str>,
cxx_name: Option<&'ctx str>,
rust_name: &'ctx str,
#[serde(default)]
rust_lifetimes: ::indexmap::IndexMap<&'ctx str, ::alloc::vec::Vec<&'ctx str>>,
}
#[cfg(feature = "alloc")]
impl<'ctx> CxxAutoEntry<'ctx> {
#[must_use]
pub fn cxx_name(&self) -> &str {
self.cxx_name.unwrap_or(self.rust_name)
}
pub(crate) fn emit_items_write_module_for_file<'a, 'b>(
&self,
path_components: impl Iterator<Item = &'a ::alloc::string::String>,
path_descendants: impl Iterator<Item = &'b ::alloc::string::String>,
) -> ::alloc::vec::Vec<syn::ItemFn> {
let cxx_include = self.cxx_include;
let cxx_namespace = self.cxx_namespace;
let cxx_name = self.cxx_name();
let rust_name = self.rust_name;
let lifetimes = {
let mut exprs = ::alloc::vec::Vec::<syn::Expr>::new();
for (lifetime, bounds) in &self.rust_lifetimes {
exprs.push(syn::parse_quote!((#lifetime, vec![#(#bounds),*])));
}
exprs
};
::alloc::vec![
syn::parse_quote! {
fn artifact_info() -> ::cxx_auto::CxxAutoArtifactInfo {
let path_components = vec![#(#path_components),*];
let path_descendants = vec![#(#path_descendants),*];
let cxx_include = #cxx_include;
let cxx_namespace = #cxx_namespace;
let cxx_name = #cxx_name;
let rust_name = #rust_name;
let lifetimes = ::cxx_auto::indexmap::IndexMap::from_iter([#(#lifetimes),*]);
let align = self::ffi::cxx_abi_align();
let size = self::ffi::cxx_abi_size();
let cxx_has_operator_equal = self::ffi::cxx_has_operator_equal();
let cxx_has_operator_not_equal = self::ffi::cxx_has_operator_not_equal();
let cxx_has_operator_less_than = self::ffi::cxx_has_operator_less_than();
let cxx_has_operator_less_than_or_equal = self::ffi::cxx_has_operator_less_than_or_equal();
let cxx_has_operator_greater_than = self::ffi::cxx_has_operator_greater_than();
let cxx_has_operator_greater_than_or_equal = self::ffi::cxx_has_operator_greater_than_or_equal();
let is_rust_cxx_extern_type_trivial = {
let cxx_is_trivially_movable = self::ffi::cxx_is_trivially_movable();
let rust_should_impl_cxx_extern_type_trivial = self::ffi::rust_should_impl_cxx_extern_type_trivial();
if cxx_is_trivially_movable == rust_should_impl_cxx_extern_type_trivial {
cxx_is_trivially_movable
} else {
rust_should_impl_cxx_extern_type_trivial
}
};
let is_rust_unpin = self::ffi::rust_should_impl_unpin();
let is_rust_send = self::ffi::rust_should_impl_send();
let is_rust_sync = self::ffi::rust_should_impl_sync();
let is_rust_copy = self::ffi::rust_should_impl_copy();
let is_rust_drop = self::ffi::rust_should_impl_drop();
let is_rust_debug = self::ffi::rust_should_impl_debug();
let is_rust_default = self::ffi::rust_should_impl_default();
let is_rust_display = self::ffi::rust_should_impl_display();
let is_rust_copy_new = self::ffi::rust_should_impl_moveref_copy_new();
let is_rust_move_new = self::ffi::rust_should_impl_moveref_move_new();
let is_rust_eq = self::ffi::rust_should_impl_eq();
let is_rust_partial_eq = self::ffi::rust_should_impl_partial_eq();
let is_rust_partial_ord = self::ffi::rust_should_impl_partial_ord();
let is_rust_ord = self::ffi::rust_should_impl_ord();
let is_rust_hash = self::ffi::rust_should_impl_hash();
::cxx_auto::CxxAutoArtifactInfo {
path_components,
path_descendants,
cxx_include,
cxx_namespace,
cxx_name,
rust_name,
lifetimes,
align,
size,
cxx_has_operator_equal,
cxx_has_operator_not_equal,
cxx_has_operator_less_than,
cxx_has_operator_less_than_or_equal,
cxx_has_operator_greater_than,
cxx_has_operator_greater_than_or_equal,
is_rust_cxx_extern_type_trivial,
is_rust_unpin,
is_rust_send,
is_rust_sync,
is_rust_copy,
is_rust_debug,
is_rust_default,
is_rust_display,
is_rust_drop,
is_rust_copy_new,
is_rust_move_new,
is_rust_eq,
is_rust_partial_eq,
is_rust_partial_ord,
is_rust_ord,
is_rust_hash,
}
}
},
syn::parse_quote! {
pub(crate) fn write_module(auto_out_dir_root: &::std::path::Path) -> ::cxx_auto::BoxResult<()> {
self::artifact_info().write_module_for_file(auto_out_dir_root)
}
},
]
}
pub(crate) fn emit_item_mod_cxx_bridge(&self) -> [syn::Item; 2] {
let namespace: syn::Attribute = {
let namespace = self.cxx_proxy_namespace.unwrap_or(self.cxx_namespace);
syn::parse_quote!(#[namespace = #namespace])
};
let include = self.cxx_proxy_include.unwrap_or(self.cxx_include);
[
syn::parse_quote! {
#[cxx::bridge]
mod ffi {
#namespace
unsafe extern "C++" {
include!(#include);
#[must_use]
fn cxx_abi_align() -> usize;
#[must_use]
fn cxx_abi_size() -> usize;
#[must_use]
fn cxx_is_copy_constructible() -> bool;
#[must_use]
fn cxx_is_move_constructible() -> bool;
#[must_use]
fn cxx_is_default_constructible() -> bool;
#[must_use]
fn cxx_is_destructible() -> bool;
#[must_use]
fn cxx_is_trivially_copyable() -> bool;
#[must_use]
fn cxx_is_trivially_movable() -> bool;
#[must_use]
fn cxx_is_trivially_destructible() -> bool;
#[must_use]
fn cxx_is_equality_comparable() -> bool;
#[must_use]
fn cxx_has_operator_equal() -> bool;
#[must_use]
fn cxx_has_operator_not_equal() -> bool;
#[must_use]
fn cxx_has_operator_less_than() -> bool;
#[must_use]
fn cxx_has_operator_less_than_or_equal() -> bool;
#[must_use]
fn cxx_has_operator_greater_than() -> bool;
#[must_use]
fn cxx_has_operator_greater_than_or_equal() -> bool;
#[must_use]
fn cxx_is_partially_ordered() -> bool;
#[must_use]
fn cxx_is_totally_ordered() -> bool;
#[must_use]
fn cxx_is_hashable() -> bool;
#[must_use]
fn rust_should_impl_cxx_extern_type_trivial() -> bool;
#[must_use]
fn rust_should_impl_unpin() -> bool;
#[must_use]
fn rust_should_impl_send() -> bool;
#[must_use]
fn rust_should_impl_sync() -> bool;
#[must_use]
fn rust_should_impl_copy() -> bool;
#[must_use]
fn rust_should_impl_debug() -> bool;
#[must_use]
fn rust_should_impl_default() -> bool;
#[must_use]
fn rust_should_impl_display() -> bool;
#[must_use]
fn rust_should_impl_drop() -> bool;
#[must_use]
fn rust_should_impl_moveref_copy_new() -> bool;
#[must_use]
fn rust_should_impl_moveref_move_new() -> bool;
#[must_use]
fn rust_should_impl_eq() -> bool;
#[must_use]
fn rust_should_impl_partial_eq() -> bool;
#[must_use]
fn rust_should_impl_partial_ord() -> bool;
#[must_use]
fn rust_should_impl_ord() -> bool;
#[must_use]
fn rust_should_impl_hash() -> bool;
}
}
},
syn::parse_quote! {
pub use ffi::*;
},
]
}
}