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| author | bjorn3 <17426603+bjorn3@users.noreply.github.com> | 2023-12-31 18:35:49 +0000 |
|---|---|---|
| committer | bjorn3 <17426603+bjorn3@users.noreply.github.com> | 2024-12-13 13:48:19 +0000 |
| commit | b805f305425d06337cc1b84653c2bfe7b831a772 (patch) | |
| tree | e7052f8bea8195b7bb3adb1f7f7b4b20cc284cc0 /compiler/rustc_span/src | |
| parent | 8e37e151835d96d6a7415e93e6876561485a3354 (diff) | |
| download | rust-b805f305425d06337cc1b84653c2bfe7b831a772.tar.gz rust-b805f305425d06337cc1b84653c2bfe7b831a772.zip | |
Remove support for specializing ToString outside the standard library
This is the only trait specializable outside of the standard library. Before stabilizing specialization we will probably want to remove support for this. It was originally made specializable to allow a more efficient ToString in libproc_macro back when this way the only way to get any data out of a TokenStream. We now support getting individual tokens, so proc macros no longer need to call it as often.
Diffstat (limited to 'compiler/rustc_span/src')
| -rw-r--r-- | compiler/rustc_span/src/lib.rs | 1 | ||||
| -rw-r--r-- | compiler/rustc_span/src/symbol.rs | 7 |
2 files changed, 0 insertions, 8 deletions
diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index bd8b93bb4d1..6e25de847fc 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -25,7 +25,6 @@ #![feature(hash_set_entry)] #![feature(if_let_guard)] #![feature(let_chains)] -#![feature(min_specialization)] #![feature(negative_impls)] #![feature(read_buf)] #![feature(round_char_boundary)] diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index d30b17c9cd8..4a4e8bfd17f 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -2471,13 +2471,6 @@ impl fmt::Display for Symbol { } } -// takes advantage of `str::to_string` specialization -impl ToString for Symbol { - fn to_string(&self) -> String { - self.as_str().to_string() - } -} - impl<CTX> HashStable<CTX> for Symbol { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { |