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-rw-r--r--tests/run-coverage/async.rs128
1 files changed, 0 insertions, 128 deletions
diff --git a/tests/run-coverage/async.rs b/tests/run-coverage/async.rs
deleted file mode 100644
index efd9e62d64e..00000000000
--- a/tests/run-coverage/async.rs
+++ /dev/null
@@ -1,128 +0,0 @@
-#![allow(unused_assignments, dead_code)]
-
-// compile-flags: --edition=2018 -C opt-level=1
-
-async fn c(x: u8) -> u8 {
-    if x == 8 {
-        1
-    } else {
-        0
-    }
-}
-
-async fn d() -> u8 { 1 }
-
-async fn e() -> u8 { 1 } // unused function; executor does not block on `g()`
-
-async fn f() -> u8 { 1 }
-
-async fn foo() -> [bool; 10] { [false; 10] } // unused function; executor does not block on `h()`
-
-pub async fn g(x: u8) {
-    match x {
-        y if e().await == y => (),
-        y if f().await == y => (),
-        _ => (),
-    }
-}
-
-async fn h(x: usize) { // The function signature is counted when called, but the body is not
-                       // executed (not awaited) so the open brace has a `0` count (at least when
-                       // displayed with `llvm-cov show` in color-mode).
-    match x {
-        y if foo().await[y] => (),
-        _ => (),
-    }
-}
-
-async fn i(x: u8) { // line coverage is 1, but there are 2 regions:
-                    // (a) the function signature, counted when the function is called; and
-                    // (b) the open brace for the function body, counted once when the body is
-                    // executed asynchronously.
-    match x {
-        y if c(x).await == y + 1 => { d().await; }
-        y if f().await == y + 1 => (),
-        _ => (),
-    }
-}
-
-fn j(x: u8) {
-    // non-async versions of `c()`, `d()`, and `f()` to make it similar to async `i()`.
-    fn c(x: u8) -> u8 {
-        if x == 8 {
-            1 // This line appears covered, but the 1-character expression span covering the `1`
-              // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because
-              // `fn j()` executes the open brace for the function body, followed by the function's
-              // first executable statement, `match x`. Inner function declarations are not
-              // "visible" to the MIR for `j()`, so the code region counts all lines between the
-              // open brace and the first statement as executed, which is, in a sense, true.
-              // `llvm-cov show` overcomes this kind of situation by showing the actual counts
-              // of the enclosed coverages, (that is, the `1` expression was not executed, and
-              // accurately displays a `0`).
-        } else {
-            0
-        }
-    }
-    fn d() -> u8 { 1 } // inner function is defined in-line, but the function is not executed
-    fn f() -> u8 { 1 }
-    match x {
-        y if c(x) == y + 1 => { d(); }
-        y if f() == y + 1 => (),
-        _ => (),
-    }
-}
-
-fn k(x: u8) { // unused function
-    match x {
-        1 => (),
-        2 => (),
-        _ => (),
-    }
-}
-
-fn l(x: u8) {
-    match x {
-        1 => (),
-        2 => (),
-        _ => (),
-    }
-}
-
-async fn m(x: u8) -> u8 { x - 1 }
-
-fn main() {
-    let _ = g(10);
-    let _ = h(9);
-    let mut future = Box::pin(i(8));
-    j(7);
-    l(6);
-    let _ = m(5);
-    executor::block_on(future.as_mut());
-}
-
-mod executor {
-    use core::{
-        future::Future,
-        pin::Pin,
-        task::{Context, Poll, RawWaker, RawWakerVTable, Waker},
-    };
-
-    pub fn block_on<F: Future>(mut future: F) -> F::Output {
-        let mut future = unsafe { Pin::new_unchecked(&mut future) };
-        use std::hint::unreachable_unchecked;
-        static VTABLE: RawWakerVTable = RawWakerVTable::new(
-            |_| unsafe { unreachable_unchecked() }, // clone
-            |_| unsafe { unreachable_unchecked() }, // wake
-            |_| unsafe { unreachable_unchecked() }, // wake_by_ref
-            |_| (),
-        );
-        let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) };
-        let mut context = Context::from_waker(&waker);
-
-        loop {
-            if let Poll::Ready(val) = future.as_mut().poll(&mut context) {
-                break val;
-            }
-        }
-    }
-}