1 #![feature(rustc_private)]
4 extern crate rustc_codegen_ssa;
5 extern crate rustc_data_structures;
6 extern crate rustc_driver;
7 extern crate rustc_errors;
8 extern crate rustc_hir;
9 extern crate rustc_metadata;
10 extern crate rustc_middle;
11 extern crate rustc_session;
12 extern crate rustc_span;
13 extern crate rustc_symbol_mangling;
14 extern crate rustc_target;
16 use rustc_codegen_ssa::traits::CodegenBackend;
17 use rustc_codegen_ssa::{CodegenResults, CrateInfo};
18 use rustc_data_structures::fx::FxHashMap;
19 use rustc_errors::ErrorGuaranteed;
20 use rustc_metadata::EncodedMetadata;
21 use rustc_middle::dep_graph::{WorkProduct, WorkProductId};
22 use rustc_middle::ty::TyCtxt;
23 use rustc_session::config::OutputFilenames;
24 use rustc_session::Session;
29 impl CodegenBackend for TheBackend {
30 fn codegen_crate<'a, 'tcx>(
33 metadata: EncodedMetadata,
34 _need_metadata_module: bool,
36 Box::new(CodegenResults {
38 allocator_module: None,
39 metadata_module: None,
41 crate_info: CrateInfo::new(tcx, "fake_target_cpu".to_string()),
47 ongoing_codegen: Box<dyn Any>,
49 _outputs: &OutputFilenames,
50 ) -> Result<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>), ErrorGuaranteed> {
51 let codegen_results = ongoing_codegen
52 .downcast::<CodegenResults>()
53 .expect("in join_codegen: ongoing_codegen is not a CodegenResults");
54 Ok((*codegen_results, FxHashMap::default()))
60 codegen_results: CodegenResults,
61 outputs: &OutputFilenames,
62 ) -> Result<(), ErrorGuaranteed> {
63 use rustc_session::{config::CrateType, output::out_filename};
65 let crate_name = codegen_results.crate_info.local_crate_name;
66 for &crate_type in sess.opts.crate_types.iter() {
67 if crate_type != CrateType::Rlib {
68 sess.fatal(&format!("Crate type is {:?}", crate_type));
70 let output_name = out_filename(sess, crate_type, &outputs, &*crate_name.as_str());
71 let mut out_file = ::std::fs::File::create(output_name).unwrap();
72 write!(out_file, "This has been \"compiled\" successfully.").unwrap();
78 /// This is the entrypoint for a hot plugged rustc_codegen_llvm
80 pub fn __rustc_codegen_backend() -> Box<dyn CodegenBackend> {