diff options
| -rw-r--r-- | src/librustc_error_codes/error_codes.rs | 2 | ||||
| -rw-r--r-- | src/librustc_error_codes/error_codes/E0727.md | 26 |
2 files changed, 27 insertions, 1 deletions
diff --git a/src/librustc_error_codes/error_codes.rs b/src/librustc_error_codes/error_codes.rs index 180ccb15977..c3d9ed08898 100644 --- a/src/librustc_error_codes/error_codes.rs +++ b/src/librustc_error_codes/error_codes.rs @@ -397,6 +397,7 @@ E0718: include_str!("./error_codes/E0718.md"), E0720: include_str!("./error_codes/E0720.md"), E0723: include_str!("./error_codes/E0723.md"), E0725: include_str!("./error_codes/E0725.md"), +E0727: include_str!("./error_codes/E0727.md"), E0728: include_str!("./error_codes/E0728.md"), E0729: include_str!("./error_codes/E0729.md"), E0730: include_str!("./error_codes/E0730.md"), @@ -607,6 +608,5 @@ E0746: include_str!("./error_codes/E0746.md"), E0722, // Malformed `#[optimize]` attribute E0724, // `#[ffi_returns_twice]` is only allowed in foreign functions E0726, // non-explicit (not `'_`) elided lifetime in unsupported position - E0727, // `async` generators are not yet supported E0739, // invalid track_caller application/syntax } diff --git a/src/librustc_error_codes/error_codes/E0727.md b/src/librustc_error_codes/error_codes/E0727.md new file mode 100644 index 00000000000..528807ee9af --- /dev/null +++ b/src/librustc_error_codes/error_codes/E0727.md @@ -0,0 +1,26 @@ +A `yield` clause was used in an `async` context. + +Example of erroneous code: + +```compile_fail +#![feature(generators)] + +let generator = || { + async { + yield; + } +}; +``` + +Here, the `yield` keyword is used in an `async` block, +which is not yet supported. + +To fix this error, you have to move `yield` out of the `async` block: + +``` +#![feature(generators)] + +let generator = || { + yield; +}; +``` |