mirror of https://github.com/rust-lang/rust
33 lines
722 B
Rust
33 lines
722 B
Rust
//@ run-pass
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// Test that the Callbacks interface to the compiler works.
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//@ ignore-cross-compile
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//@ ignore-remote
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#![feature(rustc_private)]
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extern crate rustc_driver;
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extern crate rustc_interface;
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use rustc_interface::interface;
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struct TestCalls<'a> {
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count: &'a mut u32
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}
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impl rustc_driver::Callbacks for TestCalls<'_> {
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fn config(&mut self, _config: &mut interface::Config) {
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*self.count *= 2;
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}
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}
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fn main() {
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let mut count = 1;
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let args = vec!["compiler-calls".to_string(), "foo.rs".to_string()];
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rustc_driver::catch_fatal_errors(|| {
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rustc_driver::RunCompiler::new(&args, &mut TestCalls { count: &mut count }).run().ok();
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})
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.ok();
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assert_eq!(count, 2);
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}
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