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slightly simplify the driver #3

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slightly simplify the driver #3

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13 changes: 3 additions & 10 deletions src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@ extern crate rustc_interface;
extern crate rustc_middle;
extern crate rustc_session;

use rustc_driver::Callbacks;
use rustc_hir::def_id::LocalDefId;
use rustc_interface::interface;
use rustc_middle::mir::BorrowCheckResult;
Expand Down Expand Up @@ -42,14 +41,8 @@ fn main() {
let handler = EarlyErrorHandler::new(ErrorOutputType::HumanReadable(HumanReadableErrorType::Default(ColorConfig::Auto)));
rustc_driver::init_rustc_env_logger(&handler);
std::process::exit(rustc_driver::catch_with_exit_code(move || {
let args: Vec<String> = std::env::args().collect();
run_compiler(args, &mut UbrustcCallbacks);
let mut args: Vec<String> = std::env::args().collect();
args.splice(1..1, std::iter::once("--cfg=ubrustc".to_string()));
rustc_driver::RunCompiler::new(&args, &mut UbrustcCallbacks).run()
}))
}

fn run_compiler<CB: Callbacks + Send>(mut args: Vec<String>, callbacks: &mut CB) -> ! {
args.splice(1..1, std::iter::once("--cfg=ubrustc".to_string()));
std::process::exit(rustc_driver::catch_with_exit_code(move || {
rustc_driver::RunCompiler::new(&args, callbacks).run()
}));
}