Properly handle emojis as literal prefix in macros #123752
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r? @wesleywiser rustbot has assigned @wesleywiser. Use |
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This can safely ride the train, but proposing for beta backport to expedite the fix landing on stable. This is an old stable-to-stable regression. Reminds me of the time we accepted any random identifier as a literal prefix with no error whatsoever 😬 |
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Just in case @bors try @craterbot check |
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Properly handle emojis as literal prefix in macros
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro expansion of literal prefixes.
Fix rust-lang#123696.
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rust-analyzer is developed in its own repository. If possible, consider making this change to rust-lang/rust-analyzer instead. cc @rust-lang/rust-analyzer |
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Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro expansion of literal prefixes.
Fix rust-lang#123696.
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@bors try |
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Apr 10, 2024
Properly handle emojis as literal prefix in macros
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes.
Fix rust-lang#123696.
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wesleywiser
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Apr 11, 2024
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Beta backport declined as per compiler team on Zulip. As pointed out in this comment, it can ride the trains and reach stable on its legs 🚶 @rustbot label -beta-nominated |
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I'm glad to see that no-one has been naughty with this oversight. |
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@bors r+ |
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Apr 18, 2024
Properly handle emojis as literal prefix in macros
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes.
Fix rust-lang#123696.
GuillaumeGomez
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Apr 18, 2024
Properly handle emojis as literal prefix in macros
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes.
Fix rust-lang#123696.
workingjubilee
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Apr 18, 2024
Properly handle emojis as literal prefix in macros
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes.
Fix rust-lang#123696.
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…kingjubilee Rollup of 6 pull requests Successful merges: - rust-lang#117919 (Introduce perma-unstable `wasm-c-abi` flag) - rust-lang#123571 (Correctly change type when adding adjustments on top of `NeverToAny`) - rust-lang#123752 (Properly handle emojis as literal prefix in macros) - rust-lang#123980 ( Add an opt-in to store incoming edges in `VecGraph` + misc) - rust-lang#124110 (Fix negating `f16` and `f128` constants) - rust-lang#124116 (when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation) r? `@ghost` `@rustbot` modify labels: rollup
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Properly handle emojis as literal prefix in macros
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes.
Fix rust-lang#123696.
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…kingjubilee Rollup of 9 pull requests Successful merges: - rust-lang#117919 (Introduce perma-unstable `wasm-c-abi` flag) - rust-lang#123406 (Force exhaustion in iter::ArrayChunks::into_remainder) - rust-lang#123752 (Properly handle emojis as literal prefix in macros) - rust-lang#123935 (Don't inline integer literals when they overflow - new attempt) - rust-lang#123980 ( Add an opt-in to store incoming edges in `VecGraph` + misc) - rust-lang#124019 (Use raw-dylib for Windows synchronization functions) - rust-lang#124110 (Fix negating `f16` and `f128` constants) - rust-lang#124112 (Fix ICE when there is a non-Unicode entry in the incremental crate directory) - rust-lang#124116 (when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation) r? `@ghost` `@rustbot` modify labels: rollup
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…kingjubilee Rollup of 7 pull requests Successful merges: - rust-lang#123406 (Force exhaustion in iter::ArrayChunks::into_remainder) - rust-lang#123752 (Properly handle emojis as literal prefix in macros) - rust-lang#123935 (Don't inline integer literals when they overflow - new attempt) - rust-lang#123980 ( Add an opt-in to store incoming edges in `VecGraph` + misc) - rust-lang#124019 (Use raw-dylib for Windows synchronization functions) - rust-lang#124110 (Fix negating `f16` and `f128` constants) - rust-lang#124116 (when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#123752 - estebank:emoji-prefix, r=wesleywiser Properly handle emojis as literal prefix in macros Do not accept the following ```rust macro_rules! lexes {($($_:tt)*) => {}} lexes!(🐛"foo"); ``` Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes. Fix rust-lang#123696.
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Do not accept the following
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro pre-expansion of literal prefixes.
Fix #123696.