use rustc_data_structures::owning_ref::OwningRef;
use rustc_data_structures::rustc_erase_owner;
use rustc_data_structures::sync::MetadataRef;
-use rustc_middle::middle::cstore::{EncodedMetadata, MetadataLoader};
+use rustc_middle::middle::cstore::MetadataLoader;
use rustc_middle::ty::TyCtxt;
-use rustc_session::config;
use rustc_target::spec::Target;
use crate::backend::WriteMetadata;
}
// Adapted from https://github.com/rust-lang/rust/blob/da573206f87b5510de4b0ee1a9c044127e409bd3/src/librustc_codegen_llvm/base.rs#L47-L112
-pub(crate) fn write_metadata<P: WriteMetadata>(
- tcx: TyCtxt<'_>,
- product: &mut P,
-) -> EncodedMetadata {
+pub(crate) fn write_metadata<O: WriteMetadata>(tcx: TyCtxt<'_>, object: &mut O) {
use snap::write::FrameEncoder;
use std::io::Write;
- #[derive(PartialEq, Eq, PartialOrd, Ord)]
- enum MetadataKind {
- None,
- Uncompressed,
- Compressed,
- }
-
- let kind = tcx
- .sess
- .crate_types()
- .iter()
- .map(|ty| match *ty {
- config::CrateType::Executable
- | config::CrateType::Staticlib
- | config::CrateType::Cdylib => MetadataKind::None,
-
- config::CrateType::Rlib => MetadataKind::Uncompressed,
-
- config::CrateType::Dylib | config::CrateType::ProcMacro => MetadataKind::Compressed,
- })
- .max()
- .unwrap_or(MetadataKind::None);
-
- if kind == MetadataKind::None {
- return EncodedMetadata::new();
- }
-
let metadata = tcx.encode_metadata();
- if kind == MetadataKind::Uncompressed {
- return metadata;
- }
-
- assert!(kind == MetadataKind::Compressed);
let mut compressed = tcx.metadata_encoding_version();
FrameEncoder::new(&mut compressed).write_all(&metadata.raw_data).unwrap();
- product.add_rustc_section(
+ object.add_rustc_section(
rustc_middle::middle::exported_symbols::metadata_symbol_name(tcx),
compressed,
tcx.sess.target.is_like_osx,
);
-
- metadata
}