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| author | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2018-06-23 20:42:25 +0300 |
|---|---|---|
| committer | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2018-06-23 20:42:25 +0300 |
| commit | 117cb040f14719489a38ace1c256ec282f42c367 (patch) | |
| tree | dc7f9a31dd250e2acd6bbd1888184d6dd4cf76e0 | |
| parent | c00f5af4d6e709cb23f9d47ceb466c13a073f7b5 (diff) | |
| download | rust-117cb040f14719489a38ace1c256ec282f42c367.tar.gz rust-117cb040f14719489a38ace1c256ec282f42c367.zip | |
hygiene: Make sure transparency of `Mark::root()` is an implementation detail and cannot be inspected outside of `hygiene.rs`
| -rw-r--r-- | src/libsyntax_pos/hygiene.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libsyntax_pos/hygiene.rs b/src/libsyntax_pos/hygiene.rs index cd2b8b2bff8..5c35984dfd0 100644 --- a/src/libsyntax_pos/hygiene.rs +++ b/src/libsyntax_pos/hygiene.rs @@ -126,11 +126,13 @@ impl Mark { #[inline] pub fn transparency(self) -> Transparency { + assert_ne!(self, Mark::root()); HygieneData::with(|data| data.marks[self.0 as usize].transparency) } #[inline] pub fn set_transparency(self, transparency: Transparency) { + assert_ne!(self, Mark::root()); HygieneData::with(|data| data.marks[self.0 as usize].transparency = transparency) } |