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Add test code for unescaping byte strings
| -rw-r--r-- | crates/syntax/src/ast/token_ext.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/crates/syntax/src/ast/token_ext.rs b/crates/syntax/src/ast/token_ext.rs index 32dd2db405..8990f7a7d4 100644 --- a/crates/syntax/src/ast/token_ext.rs +++ b/crates/syntax/src/ast/token_ext.rs @@ -456,6 +456,31 @@ bcde", "abcde", ); } + fn check_byte_string_value<'a, const N: usize>( + lit: &str, + expected: impl Into<Option<&'a [u8; N]>>, + ) { + assert_eq!( + ast::ByteString { syntax: make::tokens::literal(&format!("b\"{}\"", lit)) } + .value() + .as_deref(), + expected.into().map(|value| &value[..]) + ); + } + + #[test] + fn test_byte_string_escape() { + check_byte_string_value(r"foobar", b"foobar"); + check_byte_string_value(r"\foobar", None::<&[u8; 0]>); + check_byte_string_value(r"\nfoobar", b"\nfoobar"); + check_byte_string_value(r"C:\\Windows\\System32\\", b"C:\\Windows\\System32\\"); + check_byte_string_value(r"\x61bcde", b"abcde"); + check_byte_string_value( + r"a\ +bcde", b"abcde", + ); + } + #[test] fn test_value_underscores() { check_float_value("3.141592653589793_f64", 3.141592653589793_f64); |