1 files changed, 132 insertions, 0 deletions
diff --git a/src/test/ui/async-await/await-keyword/incorrect-syntax-suggestions.rs b/src/test/ui/async-await/await-keyword/incorrect-syntax-suggestions.rs
new file mode 100644
index 000000000..554ac673d
--- /dev/null
+++ b/src/test/ui/async-await/await-keyword/incorrect-syntax-suggestions.rs
@@ -0,0 +1,132 @@
+// edition:2018
+
+async fn bar() -> Result<(), ()> {
+    Ok(())
+}
+
+async fn foo1() -> Result<(), ()> {
+    let _ = await bar(); //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo2() -> Result<(), ()> {
+    let _ = await? bar(); //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo3() -> Result<(), ()> {
+    let _ = await bar()?; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo21() -> Result<(), ()> {
+    let _ = await { bar() }; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo22() -> Result<(), ()> {
+    let _ = await(bar()); //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo23() -> Result<(), ()> {
+    let _ = await { bar() }?; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo4() -> Result<(), ()> {
+    let _ = (await bar())?; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo5() -> Result<(), ()> {
+    let _ = bar().await(); //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo6() -> Result<(), ()> {
+    let _ = bar().await()?; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo7() -> Result<(), ()> {
+    let _ = bar().await; // OK
+    Ok(())
+}
+async fn foo8() -> Result<(), ()> {
+    let _ = bar().await?; // OK
+    Ok(())
+}
+fn foo9() -> Result<(), ()> {
+    let _ = await bar(); //~ ERROR `await` is only allowed inside `async` functions and blocks
+    //~^ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo10() -> Result<(), ()> {
+    let _ = await? bar(); //~ ERROR `await` is only allowed inside `async` functions and blocks
+    //~^ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo11() -> Result<(), ()> {
+    let _ = await bar()?; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo12() -> Result<(), ()> {
+    let _ = (await bar())?; //~ ERROR `await` is only allowed inside `async` functions and blocks
+    //~^ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo13() -> Result<(), ()> {
+    let _ = bar().await(); //~ ERROR `await` is only allowed inside `async` functions and blocks
+    //~^ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo14() -> Result<(), ()> {
+    let _ = bar().await()?; //~ ERROR `await` is only allowed inside `async` functions and blocks
+    //~^ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo15() -> Result<(), ()> {
+    let _ = bar().await; //~ ERROR `await` is only allowed inside `async` functions and blocks
+    Ok(())
+}
+fn foo16() -> Result<(), ()> {
+    let _ = bar().await?; //~ ERROR `await` is only allowed inside `async` functions and blocks
+    Ok(())
+}
+fn foo24() -> Result<(), ()> {
+    fn foo() -> Result<(), ()> {
+        let _ = bar().await?; //~ ERROR `await` is only allowed inside `async` functions and blocks
+        Ok(())
+    }
+    foo()
+}
+fn foo25() -> Result<(), ()> {
+    let foo = || {
+        let _ = bar().await?; //~ ERROR `await` is only allowed inside `async` functions and blocks
+        Ok(())
+    };
+    foo()
+}
+
+async fn foo26() -> Result<(), ()> {
+    let _ = await!(bar()); //~ ERROR incorrect use of `await`
+    Ok(())
+}
+async fn foo27() -> Result<(), ()> {
+    let _ = await!(bar())?; //~ ERROR incorrect use of `await`
+    Ok(())
+}
+fn foo28() -> Result<(), ()> {
+    fn foo() -> Result<(), ()> {
+        let _ = await!(bar())?; //~ ERROR incorrect use of `await`
+        //~^ ERROR `await` is only allowed inside `async` functions
+        Ok(())
+    }
+    foo()
+}
+fn foo29() -> Result<(), ()> {
+    let foo = || {
+        let _ = await!(bar())?; //~ ERROR incorrect use of `await`
+        //~^ ERROR `await` is only allowed inside `async` functions
+        Ok(())
+    };
+    foo()
+}
+
+fn main() {
+    match await { await => () }
+    //~^ ERROR expected expression, found `=>`
+    //~| ERROR incorrect use of `await`
+} //~ ERROR expected one of `.`, `?`, `{`, or an operator, found `}`