Auto merge of #90460 - pietroalbini:bidi-stable, r=nikomatsakis,pietroalbini
[stable] Fix CVE-2021-42574 and prepare Rust 1.56.1
This PR implements new lints to mitigate the impact of [CVE-2021-42574], caused by the presence of bidirectional-override Unicode codepoints in the compiled source code. [See the advisory][advisory] for more information about the vulnerability.
The changes in this PR will be released later today as part of Rust 1.56.1.
[CVE-2021-42574]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42574
[advisory]: https://blog.rust-lang.org/2021/11/01/cve-2021-42574.html
diff --git a/Cargo.lock b/Cargo.lock
index 4f1a5ca..f7080a9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4101,6 +4101,7 @@
"rustc_span",
"tracing",
"unicode-normalization",
+ "unicode-width",
]
[[package]]
diff --git a/RELEASES.md b/RELEASES.md
index 52d823d..59d4d45 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,11 @@
+Version 1.56.1 (2021-11-01)
+===========================
+
+- New lints to detect the presence of bidirectional-override Unicode
+ codepoints in the compiled source code ([CVE-2021-42574])
+
+[CVE-2021-42574]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42574
+
Version 1.56.0 (2021-10-21)
========================
diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs
index 29f352a..272e367 100644
--- a/compiler/rustc_errors/src/emitter.rs
+++ b/compiler/rustc_errors/src/emitter.rs
@@ -2054,8 +2054,26 @@
MAX_DIGITS
}
+// We replace some characters so the CLI output is always consistent and underlines aligned.
+const OUTPUT_REPLACEMENTS: &[(char, &str)] = &[
+ ('\t', " "), // We do our own tab replacement
+ ('\u{202A}', ""), // The following unicode text flow control characters are inconsistently
+ ('\u{202B}', ""), // supported accross CLIs and can cause confusion due to the bytes on disk
+ ('\u{202D}', ""), // not corresponding to the visible source code, so we replace them always.
+ ('\u{202E}', ""),
+ ('\u{2066}', ""),
+ ('\u{2067}', ""),
+ ('\u{2068}', ""),
+ ('\u{202C}', ""),
+ ('\u{2069}', ""),
+];
+
fn replace_tabs(str: &str) -> String {
- str.replace('\t', " ")
+ let mut s = str.to_string();
+ for (c, replacement) in OUTPUT_REPLACEMENTS {
+ s = s.replace(*c, replacement);
+ }
+ s
}
fn draw_col_separator(buffer: &mut StyledBuffer, line: usize, col: usize) {
diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs
index 7dbc3d6..30ae664 100644
--- a/compiler/rustc_lint/src/context.rs
+++ b/compiler/rustc_lint/src/context.rs
@@ -16,6 +16,7 @@
use self::TargetLint::*;
+use crate::hidden_unicode_codepoints::UNICODE_TEXT_FLOW_CHARS;
use crate::levels::{is_known_lint_tool, LintLevelsBuilder};
use crate::passes::{EarlyLintPassObject, LateLintPassObject};
use rustc_ast as ast;
@@ -40,7 +41,7 @@
use rustc_session::Session;
use rustc_session::SessionLintStore;
use rustc_span::lev_distance::find_best_match_for_name;
-use rustc_span::{symbol::Symbol, MultiSpan, Span, DUMMY_SP};
+use rustc_span::{symbol::Symbol, BytePos, MultiSpan, Span, DUMMY_SP};
use rustc_target::abi::{self, LayoutOf};
use tracing::debug;
@@ -612,6 +613,42 @@
// Now, set up surrounding context.
let sess = self.sess();
match diagnostic {
+ BuiltinLintDiagnostics::UnicodeTextFlow(span, content) => {
+ let spans: Vec<_> = content
+ .char_indices()
+ .filter_map(|(i, c)| {
+ UNICODE_TEXT_FLOW_CHARS.contains(&c).then(|| {
+ let lo = span.lo() + BytePos(2 + i as u32);
+ (c, span.with_lo(lo).with_hi(lo + BytePos(c.len_utf8() as u32)))
+ })
+ })
+ .collect();
+ let (an, s) = match spans.len() {
+ 1 => ("an ", ""),
+ _ => ("", "s"),
+ };
+ db.span_label(span, &format!(
+ "this comment contains {}invisible unicode text flow control codepoint{}",
+ an,
+ s,
+ ));
+ for (c, span) in &spans {
+ db.span_label(*span, format!("{:?}", c));
+ }
+ db.note(
+ "these kind of unicode codepoints change the way text flows on \
+ applications that support them, but can cause confusion because they \
+ change the order of characters on the screen",
+ );
+ if !spans.is_empty() {
+ db.multipart_suggestion_with_style(
+ "if their presence wasn't intentional, you can remove them",
+ spans.into_iter().map(|(_, span)| (span, "".to_string())).collect(),
+ Applicability::MachineApplicable,
+ SuggestionStyle::HideCodeAlways,
+ );
+ }
+ },
BuiltinLintDiagnostics::Normal => (),
BuiltinLintDiagnostics::BareTraitObject(span, is_global) => {
let (sugg, app) = match sess.source_map().span_to_snippet(span) {
diff --git a/compiler/rustc_lint/src/hidden_unicode_codepoints.rs b/compiler/rustc_lint/src/hidden_unicode_codepoints.rs
new file mode 100644
index 0000000..1bcdcb8
--- /dev/null
+++ b/compiler/rustc_lint/src/hidden_unicode_codepoints.rs
@@ -0,0 +1,161 @@
+use crate::{EarlyContext, EarlyLintPass, LintContext};
+use rustc_ast as ast;
+use rustc_errors::{Applicability, SuggestionStyle};
+use rustc_span::{BytePos, Span, Symbol};
+
+declare_lint! {
+ /// The `text_direction_codepoint_in_literal` lint detects Unicode codepoints that change the
+ /// visual representation of text on screen in a way that does not correspond to their on
+ /// memory representation.
+ ///
+ /// ### Explanation
+ ///
+ /// The unicode characters `\u{202A}`, `\u{202B}`, `\u{202D}`, `\u{202E}`, `\u{2066}`,
+ /// `\u{2067}`, `\u{2068}`, `\u{202C}` and `\u{2069}` make the flow of text on screen change
+ /// its direction on software that supports these codepoints. This makes the text "abc" display
+ /// as "cba" on screen. By leveraging software that supports these, people can write specially
+ /// crafted literals that make the surrounding code seem like it's performing one action, when
+ /// in reality it is performing another. Because of this, we proactively lint against their
+ /// presence to avoid surprises.
+ ///
+ /// ### Example
+ ///
+ /// ```rust,compile_fail
+ /// #![deny(text_direction_codepoint_in_literal)]
+ /// fn main() {
+ /// println!("{:?}", '');
+ /// }
+ /// ```
+ ///
+ /// {{produces}}
+ ///
+ pub TEXT_DIRECTION_CODEPOINT_IN_LITERAL,
+ Deny,
+ "detect special Unicode codepoints that affect the visual representation of text on screen, \
+ changing the direction in which text flows",
+}
+
+declare_lint_pass!(HiddenUnicodeCodepoints => [TEXT_DIRECTION_CODEPOINT_IN_LITERAL]);
+
+crate const UNICODE_TEXT_FLOW_CHARS: &[char] = &[
+ '\u{202A}', '\u{202B}', '\u{202D}', '\u{202E}', '\u{2066}', '\u{2067}', '\u{2068}', '\u{202C}',
+ '\u{2069}',
+];
+
+impl HiddenUnicodeCodepoints {
+ fn lint_text_direction_codepoint(
+ &self,
+ cx: &EarlyContext<'_>,
+ text: Symbol,
+ span: Span,
+ padding: u32,
+ point_at_inner_spans: bool,
+ label: &str,
+ ) {
+ // Obtain the `Span`s for each of the forbidden chars.
+ let spans: Vec<_> = text
+ .as_str()
+ .char_indices()
+ .filter_map(|(i, c)| {
+ UNICODE_TEXT_FLOW_CHARS.contains(&c).then(|| {
+ let lo = span.lo() + BytePos(i as u32 + padding);
+ (c, span.with_lo(lo).with_hi(lo + BytePos(c.len_utf8() as u32)))
+ })
+ })
+ .collect();
+
+ cx.struct_span_lint(TEXT_DIRECTION_CODEPOINT_IN_LITERAL, span, |lint| {
+ let mut err = lint.build(&format!(
+ "unicode codepoint changing visible direction of text present in {}",
+ label
+ ));
+ let (an, s) = match spans.len() {
+ 1 => ("an ", ""),
+ _ => ("", "s"),
+ };
+ err.span_label(
+ span,
+ &format!(
+ "this {} contains {}invisible unicode text flow control codepoint{}",
+ label, an, s,
+ ),
+ );
+ if point_at_inner_spans {
+ for (c, span) in &spans {
+ err.span_label(*span, format!("{:?}", c));
+ }
+ }
+ err.note(
+ "these kind of unicode codepoints change the way text flows on applications that \
+ support them, but can cause confusion because they change the order of \
+ characters on the screen",
+ );
+ if point_at_inner_spans && !spans.is_empty() {
+ err.multipart_suggestion_with_style(
+ "if their presence wasn't intentional, you can remove them",
+ spans.iter().map(|(_, span)| (*span, "".to_string())).collect(),
+ Applicability::MachineApplicable,
+ SuggestionStyle::HideCodeAlways,
+ );
+ err.multipart_suggestion(
+ "if you want to keep them but make them visible in your source code, you can \
+ escape them",
+ spans
+ .into_iter()
+ .map(|(c, span)| {
+ let c = format!("{:?}", c);
+ (span, c[1..c.len() - 1].to_string())
+ })
+ .collect(),
+ Applicability::MachineApplicable,
+ );
+ } else {
+ // FIXME: in other suggestions we've reversed the inner spans of doc comments. We
+ // should do the same here to provide the same good suggestions as we do for
+ // literals above.
+ err.note("if their presence wasn't intentional, you can remove them");
+ err.note(&format!(
+ "if you want to keep them but make them visible in your source code, you can \
+ escape them: {}",
+ spans
+ .into_iter()
+ .map(|(c, _)| { format!("{:?}", c) })
+ .collect::<Vec<String>>()
+ .join(", "),
+ ));
+ }
+ err.emit();
+ });
+ }
+}
+impl EarlyLintPass for HiddenUnicodeCodepoints {
+ fn check_attribute(&mut self, cx: &EarlyContext<'_>, attr: &ast::Attribute) {
+ if let ast::AttrKind::DocComment(_, comment) = attr.kind {
+ if comment.as_str().contains(UNICODE_TEXT_FLOW_CHARS) {
+ self.lint_text_direction_codepoint(cx, comment, attr.span, 0, false, "doc comment");
+ }
+ }
+ }
+
+ fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &ast::Expr) {
+ // byte strings are already handled well enough by `EscapeError::NonAsciiCharInByteString`
+ let (text, span, padding) = match &expr.kind {
+ ast::ExprKind::Lit(ast::Lit { token, kind, span }) => {
+ let text = token.symbol;
+ if !text.as_str().contains(UNICODE_TEXT_FLOW_CHARS) {
+ return;
+ }
+ let padding = match kind {
+ // account for `"` or `'`
+ ast::LitKind::Str(_, ast::StrStyle::Cooked) | ast::LitKind::Char(_) => 1,
+ // account for `r###"`
+ ast::LitKind::Str(_, ast::StrStyle::Raw(val)) => *val as u32 + 2,
+ _ => return,
+ };
+ (text, span, padding)
+ }
+ _ => return,
+ };
+ self.lint_text_direction_codepoint(cx, text, *span, padding, true, "literal");
+ }
+}
diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs
index ef4bda6..b65fa41 100644
--- a/compiler/rustc_lint/src/lib.rs
+++ b/compiler/rustc_lint/src/lib.rs
@@ -48,6 +48,7 @@
pub mod builtin;
mod context;
mod early;
+pub mod hidden_unicode_codepoints;
mod internal;
mod late;
mod levels;
@@ -77,6 +78,7 @@
use array_into_iter::ArrayIntoIter;
use builtin::*;
+use hidden_unicode_codepoints::*;
use internal::*;
use methods::*;
use non_ascii_idents::*;
@@ -128,6 +130,7 @@
DeprecatedAttr: DeprecatedAttr::new(),
WhileTrue: WhileTrue,
NonAsciiIdents: NonAsciiIdents,
+ HiddenUnicodeCodepoints: HiddenUnicodeCodepoints,
IncompleteFeatures: IncompleteFeatures,
RedundantSemicolons: RedundantSemicolons,
UnusedDocComment: UnusedDocComment,
diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs
index 8fb678e..e9cd30a 100644
--- a/compiler/rustc_lint_defs/src/builtin.rs
+++ b/compiler/rustc_lint_defs/src/builtin.rs
@@ -3416,3 +3416,31 @@
Warn,
"`break` expression with label and unlabeled loop as value expression"
}
+
+declare_lint! {
+ /// The `text_direction_codepoint_in_comment` lint detects Unicode codepoints in comments that
+ /// change the visual representation of text on screen in a way that does not correspond to
+ /// their on memory representation.
+ ///
+ /// ### Example
+ ///
+ /// ```rust,compile_fail
+ /// #![deny(text_direction_codepoint_in_comment)]
+ /// fn main() {
+ /// println!("{:?}"); // '');
+ /// }
+ /// ```
+ ///
+ /// {{produces}}
+ ///
+ /// ### Explanation
+ ///
+ /// Unicode allows changing the visual flow of text on screen in order to support scripts that
+ /// are written right-to-left, but a specially crafted comment can make code that will be
+ /// compiled appear to be part of a comment, depending on the software used to read the code.
+ /// To avoid potential problems or confusion, such as in CVE-2021-42574, by default we deny
+ /// their use.
+ pub TEXT_DIRECTION_CODEPOINT_IN_COMMENT,
+ Deny,
+ "invisible directionality-changing codepoints in comment"
+}
diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs
index f89d531..feac2a7 100644
--- a/compiler/rustc_lint_defs/src/lib.rs
+++ b/compiler/rustc_lint_defs/src/lib.rs
@@ -306,6 +306,7 @@
TrailingMacro(bool, Ident),
BreakWithLabelAndLoop(Span),
NamedAsmLabel(String),
+ UnicodeTextFlow(Span, String),
}
/// Lints that are buffered up early on in the `Session` before the
diff --git a/compiler/rustc_parse/Cargo.toml b/compiler/rustc_parse/Cargo.toml
index 1ca1a92..b67195e 100644
--- a/compiler/rustc_parse/Cargo.toml
+++ b/compiler/rustc_parse/Cargo.toml
@@ -18,3 +18,4 @@
rustc_span = { path = "../rustc_span" }
rustc_ast = { path = "../rustc_ast" }
unicode-normalization = "0.1.11"
+unicode-width = "0.1.4"
diff --git a/compiler/rustc_parse/src/lexer/mod.rs b/compiler/rustc_parse/src/lexer/mod.rs
index 1e65cc2..8e90f73 100644
--- a/compiler/rustc_parse/src/lexer/mod.rs
+++ b/compiler/rustc_parse/src/lexer/mod.rs
@@ -4,7 +4,9 @@
use rustc_errors::{error_code, Applicability, DiagnosticBuilder, FatalError, PResult};
use rustc_lexer::unescape::{self, Mode};
use rustc_lexer::{Base, DocStyle, RawStrError};
-use rustc_session::lint::builtin::RUST_2021_PREFIXES_INCOMPATIBLE_SYNTAX;
+use rustc_session::lint::builtin::{
+ TEXT_DIRECTION_CODEPOINT_IN_COMMENT, RUST_2021_PREFIXES_INCOMPATIBLE_SYNTAX,
+};
use rustc_session::lint::BuiltinLintDiagnostics;
use rustc_session::parse::ParseSess;
use rustc_span::symbol::{sym, Symbol};
@@ -129,6 +131,28 @@
.struct_span_fatal(self.mk_sp(from_pos, to_pos), &format!("{}: {}", m, escaped_char(c)))
}
+ /// Detect usages of Unicode codepoints changing the direction of the text on screen and loudly
+ /// complain about it.
+ fn lint_unicode_text_flow(&self, start: BytePos) {
+ // Opening delimiter of the length 2 is not included into the comment text.
+ let content_start = start + BytePos(2);
+ let content = self.str_from(content_start);
+ let span = self.mk_sp(start, self.pos);
+ const UNICODE_TEXT_FLOW_CHARS: &[char] = &[
+ '\u{202A}', '\u{202B}', '\u{202D}', '\u{202E}', '\u{2066}', '\u{2067}', '\u{2068}',
+ '\u{202C}', '\u{2069}',
+ ];
+ if content.contains(UNICODE_TEXT_FLOW_CHARS) {
+ self.sess.buffer_lint_with_diagnostic(
+ &TEXT_DIRECTION_CODEPOINT_IN_COMMENT,
+ span,
+ ast::CRATE_NODE_ID,
+ "unicode codepoint changing visible direction of text present in comment",
+ BuiltinLintDiagnostics::UnicodeTextFlow(span, content.to_string()),
+ );
+ }
+ }
+
/// Turns simple `rustc_lexer::TokenKind` enum into a rich
/// `rustc_ast::TokenKind`. This turns strings into interned
/// symbols and runs additional validation.
@@ -136,7 +160,12 @@
Some(match token {
rustc_lexer::TokenKind::LineComment { doc_style } => {
// Skip non-doc comments
- let doc_style = doc_style?;
+ let doc_style = if let Some(doc_style) = doc_style {
+ doc_style
+ } else {
+ self.lint_unicode_text_flow(start);
+ return None;
+ };
// Opening delimiter of the length 3 is not included into the symbol.
let content_start = start + BytePos(3);
@@ -158,7 +187,12 @@
}
// Skip non-doc comments
- let doc_style = doc_style?;
+ let doc_style = if let Some(doc_style) = doc_style {
+ doc_style
+ } else {
+ self.lint_unicode_text_flow(start);
+ return None;
+ };
// Opening delimiter of the length 3 and closing delimiter of the length 2
// are not included into the symbol.
diff --git a/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs b/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs
index aa6b424..e26d094 100644
--- a/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs
+++ b/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs
@@ -154,12 +154,17 @@
assert!(mode.is_bytes());
let (c, span) = last_char();
let mut err = handler.struct_span_err(span, "non-ASCII character in byte constant");
- err.span_label(span, "byte constant must be ASCII");
+ let postfix = if unicode_width::UnicodeWidthChar::width(c).unwrap_or(1) == 0 {
+ format!(" but is {:?}", c)
+ } else {
+ String::new()
+ };
+ err.span_label(span, &format!("byte constant must be ASCII{}", postfix));
if (c as u32) <= 0xFF {
err.span_suggestion(
span,
&format!(
- "if you meant to use the unicode code point for '{}', use a \\xHH escape",
+ "if you meant to use the unicode code point for {:?}, use a \\xHH escape",
c
),
format!("\\x{:X}", c as u32),
@@ -173,7 +178,7 @@
err.span_suggestion(
span,
&format!(
- "if you meant to use the UTF-8 encoding of '{}', use \\xHH escapes",
+ "if you meant to use the UTF-8 encoding of {:?}, use \\xHH escapes",
c
),
utf8.as_bytes()
@@ -187,10 +192,15 @@
}
EscapeError::NonAsciiCharInByteString => {
assert!(mode.is_bytes());
- let (_c, span) = last_char();
+ let (c, span) = last_char();
+ let postfix = if unicode_width::UnicodeWidthChar::width(c).unwrap_or(1) == 0 {
+ format!(" but is {:?}", c)
+ } else {
+ String::new()
+ };
handler
.struct_span_err(span, "raw byte string must be ASCII")
- .span_label(span, "must be ASCII")
+ .span_label(span, &format!("must be ASCII{}", postfix))
.emit();
}
EscapeError::OutOfRangeHexEscape => {
diff --git a/src/test/rustdoc/intra-doc/prim-methods-external-core.rs b/src/test/rustdoc/intra-doc/prim-methods-external-core.rs
index 9347d7b..3483458 100644
--- a/src/test/rustdoc/intra-doc/prim-methods-external-core.rs
+++ b/src/test/rustdoc/intra-doc/prim-methods-external-core.rs
@@ -2,6 +2,7 @@
// build-aux-docs
// ignore-cross-compile
// ignore-windows
+// ignore-macos
#![deny(broken_intra_doc_links)]
#![feature(no_core, lang_items)]
diff --git a/src/test/ui/parser/unicode-control-codepoints.rs b/src/test/ui/parser/unicode-control-codepoints.rs
new file mode 100644
index 0000000..5af0b58
--- /dev/null
+++ b/src/test/ui/parser/unicode-control-codepoints.rs
@@ -0,0 +1,39 @@
+fn main() {
+ // if access_level != "user" { // Check if admin
+ //~^ ERROR unicode codepoint changing visible direction of text present in comment
+ println!("us\u{202B}e\u{202A}r");
+ println!("{:?}", r#"us\u{202B}e\u{202A}r"#);
+ println!("{:?}", b"us\u{202B}e\u{202A}r");
+ //~^ ERROR unicode escape in byte string
+ //~| ERROR unicode escape in byte string
+ println!("{:?}", br##"us\u{202B}e\u{202A}r"##);
+
+ println!("{:?}", "/* } if isAdmin begin admins only ");
+ //~^ ERROR unicode codepoint changing visible direction of text present in literal
+
+ println!("{:?}", r##"/* } if isAdmin begin admins only "##);
+ //~^ ERROR unicode codepoint changing visible direction of text present in literal
+ println!("{:?}", b"/* } if isAdmin begin admins only ");
+ //~^ ERROR non-ASCII character in byte constant
+ //~| ERROR non-ASCII character in byte constant
+ //~| ERROR non-ASCII character in byte constant
+ //~| ERROR non-ASCII character in byte constant
+ println!("{:?}", br##"/* } if isAdmin begin admins only "##);
+ //~^ ERROR raw byte string must be ASCII
+ //~| ERROR raw byte string must be ASCII
+ //~| ERROR raw byte string must be ASCII
+ //~| ERROR raw byte string must be ASCII
+ println!("{:?}", '');
+ //~^ ERROR unicode codepoint changing visible direction of text present in literal
+}
+
+//"/* } if isAdmin begin admins only */"
+//~^ ERROR unicode codepoint changing visible direction of text present in comment
+
+/** ''); */fn foo() {}
+//~^ ERROR unicode codepoint changing visible direction of text present in doc comment
+
+/**
+ *
+ * ''); */fn bar() {}
+//~^^^ ERROR unicode codepoint changing visible direction of text present in doc comment
diff --git a/src/test/ui/parser/unicode-control-codepoints.stderr b/src/test/ui/parser/unicode-control-codepoints.stderr
new file mode 100644
index 0000000..71509fe
--- /dev/null
+++ b/src/test/ui/parser/unicode-control-codepoints.stderr
@@ -0,0 +1,192 @@
+error: unicode escape in byte string
+ --> $DIR/unicode-control-codepoints.rs:6:26
+ |
+LL | println!("{:?}", b"us\u{202B}e\u{202A}r");
+ | ^^^^^^^^ unicode escape in byte string
+ |
+ = help: unicode escape sequences cannot be used as a byte or in a byte string
+
+error: unicode escape in byte string
+ --> $DIR/unicode-control-codepoints.rs:6:35
+ |
+LL | println!("{:?}", b"us\u{202B}e\u{202A}r");
+ | ^^^^^^^^ unicode escape in byte string
+ |
+ = help: unicode escape sequences cannot be used as a byte or in a byte string
+
+error: non-ASCII character in byte constant
+ --> $DIR/unicode-control-codepoints.rs:16:26
+ |
+LL | println!("{:?}", b"/* } if isAdmin begin admins only ");
+ | ^ byte constant must be ASCII but is '\u{202e}'
+ |
+help: if you meant to use the UTF-8 encoding of '\u{202e}', use \xHH escapes
+ |
+LL | println!("{:?}", b"/*\xE2\x80\xAE } if isAdmin begin admins only ");
+ | ~~~~~~~~~~~~
+
+error: non-ASCII character in byte constant
+ --> $DIR/unicode-control-codepoints.rs:16:30
+ |
+LL | println!("{:?}", b"/* } if isAdmin begin admins only ");
+ | ^ byte constant must be ASCII but is '\u{2066}'
+ |
+help: if you meant to use the UTF-8 encoding of '\u{2066}', use \xHH escapes
+ |
+LL | println!("{:?}", b"/* } \xE2\x81\xA6if isAdmin begin admins only ");
+ | ~~~~~~~~~~~~
+
+error: non-ASCII character in byte constant
+ --> $DIR/unicode-control-codepoints.rs:16:41
+ |
+LL | println!("{:?}", b"/* } if isAdmin begin admins only ");
+ | ^ byte constant must be ASCII but is '\u{2069}'
+ |
+help: if you meant to use the UTF-8 encoding of '\u{2069}', use \xHH escapes
+ |
+LL | println!("{:?}", b"/* } if isAdmin\xE2\x81\xA9 begin admins only ");
+ | ~~~~~~~~~~~~
+
+error: non-ASCII character in byte constant
+ --> $DIR/unicode-control-codepoints.rs:16:43
+ |
+LL | println!("{:?}", b"/* } if isAdmin begin admins only ");
+ | ^ byte constant must be ASCII but is '\u{2066}'
+ |
+help: if you meant to use the UTF-8 encoding of '\u{2066}', use \xHH escapes
+ |
+LL | println!("{:?}", b"/* } if isAdmin \xE2\x81\xA6 begin admins only ");
+ | ~~~~~~~~~~~~
+
+error: raw byte string must be ASCII
+ --> $DIR/unicode-control-codepoints.rs:21:29
+ |
+LL | println!("{:?}", br##"/* } if isAdmin begin admins only "##);
+ | ^ must be ASCII but is '\u{202e}'
+
+error: raw byte string must be ASCII
+ --> $DIR/unicode-control-codepoints.rs:21:33
+ |
+LL | println!("{:?}", br##"/* } if isAdmin begin admins only "##);
+ | ^ must be ASCII but is '\u{2066}'
+
+error: raw byte string must be ASCII
+ --> $DIR/unicode-control-codepoints.rs:21:44
+ |
+LL | println!("{:?}", br##"/* } if isAdmin begin admins only "##);
+ | ^ must be ASCII but is '\u{2069}'
+
+error: raw byte string must be ASCII
+ --> $DIR/unicode-control-codepoints.rs:21:46
+ |
+LL | println!("{:?}", br##"/* } if isAdmin begin admins only "##);
+ | ^ must be ASCII but is '\u{2066}'
+
+error: unicode codepoint changing visible direction of text present in comment
+ --> $DIR/unicode-control-codepoints.rs:2:5
+ |
+LL | // if access_level != "user" { // Check if admin
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^--^^^^^^^^^^^^^^^^^^^^^
+ | | ||
+ | | |'\u{202a}'
+ | | '\u{202b}'
+ | this comment contains invisible unicode text flow control codepoints
+ |
+ = note: `#[deny(text_direction_codepoint_in_comment)]` on by default
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = help: if their presence wasn't intentional, you can remove them
+
+error: unicode codepoint changing visible direction of text present in comment
+ --> $DIR/unicode-control-codepoints.rs:30:1
+ |
+LL | //"/* } if isAdmin begin admins only */"
+ | ^^^^^-^^-^^^^^^^^^--^^^^^^^^^^^^^^^^^^^^^
+ | | | | ||
+ | | | | |'\u{2066}'
+ | | | | '\u{2069}'
+ | | | '\u{2066}'
+ | | '\u{202e}'
+ | this comment contains invisible unicode text flow control codepoints
+ |
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = help: if their presence wasn't intentional, you can remove them
+
+error: unicode codepoint changing visible direction of text present in literal
+ --> $DIR/unicode-control-codepoints.rs:11:22
+ |
+LL | println!("{:?}", "/* } if isAdmin begin admins only ");
+ | ^^^-^^-^^^^^^^^^--^^^^^^^^^^^^^^^^^^^
+ | | | | ||
+ | | | | |'\u{2066}'
+ | | | | '\u{2069}'
+ | | | '\u{2066}'
+ | | '\u{202e}'
+ | this literal contains invisible unicode text flow control codepoints
+ |
+ = note: `#[deny(text_direction_codepoint_in_literal)]` on by default
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = help: if their presence wasn't intentional, you can remove them
+help: if you want to keep them but make them visible in your source code, you can escape them
+ |
+LL | println!("{:?}", "/*\u{202e} } \u{2066}if isAdmin\u{2069} \u{2066} begin admins only ");
+ | ~~~~~~~~ ~~~~~~~~ ~~~~~~~~ ~~~~~~~~
+
+error: unicode codepoint changing visible direction of text present in literal
+ --> $DIR/unicode-control-codepoints.rs:14:22
+ |
+LL | println!("{:?}", r##"/* } if isAdmin begin admins only "##);
+ | ^^^^^^-^^-^^^^^^^^^--^^^^^^^^^^^^^^^^^^^^^
+ | | | | ||
+ | | | | |'\u{2066}'
+ | | | | '\u{2069}'
+ | | | '\u{2066}'
+ | | '\u{202e}'
+ | this literal contains invisible unicode text flow control codepoints
+ |
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = help: if their presence wasn't intentional, you can remove them
+help: if you want to keep them but make them visible in your source code, you can escape them
+ |
+LL | println!("{:?}", r##"/*\u{202e} } \u{2066}if isAdmin\u{2069} \u{2066} begin admins only "##);
+ | ~~~~~~~~ ~~~~~~~~ ~~~~~~~~ ~~~~~~~~
+
+error: unicode codepoint changing visible direction of text present in literal
+ --> $DIR/unicode-control-codepoints.rs:26:22
+ |
+LL | println!("{:?}", '');
+ | ^-
+ | ||
+ | |'\u{202e}'
+ | this literal contains an invisible unicode text flow control codepoint
+ |
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = help: if their presence wasn't intentional, you can remove them
+help: if you want to keep them but make them visible in your source code, you can escape them
+ |
+LL | println!("{:?}", '\u{202e}');
+ | ~~~~~~~~
+
+error: unicode codepoint changing visible direction of text present in doc comment
+ --> $DIR/unicode-control-codepoints.rs:33:1
+ |
+LL | /** ''); */fn foo() {}
+ | ^^^^^^^^^^^^ this doc comment contains an invisible unicode text flow control codepoint
+ |
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = note: if their presence wasn't intentional, you can remove them
+ = note: if you want to keep them but make them visible in your source code, you can escape them: '\u{202e}'
+
+error: unicode codepoint changing visible direction of text present in doc comment
+ --> $DIR/unicode-control-codepoints.rs:36:1
+ |
+LL | / /**
+LL | | *
+LL | | * ''); */fn bar() {}
+ | |___________^ this doc comment contains an invisible unicode text flow control codepoint
+ |
+ = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
+ = note: if their presence wasn't intentional, you can remove them
+ = note: if you want to keep them but make them visible in your source code, you can escape them: '\u{202e}'
+
+error: aborting due to 17 previous errors
+
diff --git a/src/version b/src/version
index 3ebf789..43c989b 100644
--- a/src/version
+++ b/src/version
@@ -1 +1 @@
-1.56.0
+1.56.1
