diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/string_lit_as_bytes.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/string_lit_as_bytes.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/string_lit_as_bytes.rs b/src/tools/clippy/tests/ui/string_lit_as_bytes.rs index b550bea001f..7d54acf630e 100644 --- a/src/tools/clippy/tests/ui/string_lit_as_bytes.rs +++ b/src/tools/clippy/tests/ui/string_lit_as_bytes.rs @@ -1,8 +1,18 @@ //@run-rustfix +//@aux-build:macro_rules.rs #![allow(dead_code, unused_variables)] #![warn(clippy::string_lit_as_bytes)] +#[macro_use] +extern crate macro_rules; + +macro_rules! b { + ($b:literal) => { + const B: &[u8] = $b.as_bytes(); + }; +} + fn str_lit_as_bytes() { let bs = "hello there".as_bytes(); @@ -11,6 +21,10 @@ fn str_lit_as_bytes() { let bs = "lit to string".to_string().into_bytes(); let bs = "lit to owned".to_owned().into_bytes(); + b!("warning"); + + string_lit_as_bytes!("no warning"); + // no warning, because these cannot be written as byte string literals: let ubs = "☃".as_bytes(); let ubs = "hello there! this is a very long string".as_bytes(); |