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Add option to pass a custom codegen backend from a driver

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This commit is contained in:
bjorn3 2020-09-08 13:44:41 +02:00
parent 956e06c6c8
commit 71bc62b9f6
8 changed files with 37 additions and 5 deletions
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10
compiler/rustc_interface/src/util.rs
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@ -63,9 +63,17 @@ pub fn create_session(
file_loader: Option<Box<dyn FileLoader + Send + Sync + 'static>>,
input_path: Option<PathBuf>,
lint_caps: FxHashMap<lint::LintId, lint::Level>,
make_codegen_backend: Option<
Box<dyn FnOnce(&config::Options) -> Box<dyn CodegenBackend> + Send>,
>,
descriptions: Registry,
) -> (Lrc<Session>, Lrc<Box<dyn CodegenBackend>>) {
let codegen_backend = get_codegen_backend(&sopts);
let codegen_backend = if let Some(make_codegen_backend) = make_codegen_backend {
make_codegen_backend(&sopts)
} else {
get_codegen_backend(&sopts)
};
// target_override is documented to be called before init(), so this is okay
let target_override = codegen_backend.target_override(&sopts);