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Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0744.md')
| -rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0744.md | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0744.md b/compiler/rustc_error_codes/src/error_codes/E0744.md new file mode 100644 index 000000000..9a8ef3b84 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0744.md @@ -0,0 +1,16 @@ +An unsupported expression was used inside a const context. + +Erroneous code example: + +```compile_fail,edition2018,E0744 +const _: i32 = { + async { 0 }.await +}; +``` + +At the moment, `.await` is forbidden inside a `const`, `static`, or `const fn`. + +This may be allowed at some point in the future, but the implementation is not +yet complete. See the tracking issue for [`async`] in `const fn`. + +[`async`]: https://github.com/rust-lang/rust/issues/69431 |