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Rename reserved_prefix lint to reserved_prefixes
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@ -2973,7 +2973,7 @@ declare_lint_pass! {
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RUST_2021_INCOMPATIBLE_OR_PATTERNS,
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LARGE_ASSIGNMENTS,
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FUTURE_PRELUDE_COLLISIONS,
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RESERVED_PREFIX,
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RESERVED_PREFIXES,
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UNSUPPORTED_CALLING_CONVENTIONS,
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]
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}
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@ -3270,13 +3270,13 @@ declare_lint! {
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}
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declare_lint! {
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/// The `reserved_prefix` lint detects identifiers that will be parsed as a
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/// The `reserved_prefixes` lint detects identifiers that will be parsed as a
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/// prefix instead in Rust 2021.
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///
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/// ### Example
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///
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/// ```rust,compile_fail
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/// #![deny(reserved_prefix)]
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/// #![deny(reserved_prefixes)]
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///
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/// macro_rules! m {
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/// (z $x:expr) => ();
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@ -3295,7 +3295,7 @@ declare_lint! {
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///
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/// This lint suggests to add whitespace between the `z` and `"hey"` tokens
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/// to keep them separated in Rust 2021.
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pub RESERVED_PREFIX,
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pub RESERVED_PREFIXES,
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Allow,
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"identifiers that will be parsed as a prefix in Rust 2021",
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@future_incompatible = FutureIncompatibleInfo {
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@ -4,7 +4,7 @@ use rustc_ast::tokenstream::{Spacing, TokenStream};
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use rustc_errors::{error_code, Applicability, DiagnosticBuilder, FatalError, PResult};
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use rustc_lexer::unescape::{self, Mode};
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use rustc_lexer::{Base, DocStyle, RawStrError};
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use rustc_session::lint::builtin::RESERVED_PREFIX;
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use rustc_session::lint::builtin::RESERVED_PREFIXES;
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use rustc_session::lint::BuiltinLintDiagnostics;
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use rustc_session::parse::ParseSess;
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use rustc_span::symbol::{sym, Symbol};
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@ -526,7 +526,7 @@ impl<'a> StringReader<'a> {
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} else {
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// Before Rust 2021, only emit a lint for migration.
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self.sess.buffer_lint_with_diagnostic(
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&RESERVED_PREFIX,
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&RESERVED_PREFIXES,
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prefix_span,
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ast::CRATE_NODE_ID,
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&msg,
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@ -2,7 +2,7 @@
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// run-rustfix
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// compile-flags: -Z unstable-options --edition 2018
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#![warn(reserved_prefix)]
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#![warn(reserved_prefixes)]
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macro_rules! m2 {
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($a:tt $b:tt) => {};
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@ -14,16 +14,16 @@ macro_rules! m3 {
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fn main() {
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m2!(z "hey");
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//~^ WARNING prefix `z` is unknown [reserved_prefix]
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//~^ WARNING prefix `z` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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m2!(prefix "hey");
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//~^ WARNING prefix `prefix` is unknown [reserved_prefix]
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//~^ WARNING prefix `prefix` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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m3!(hey #123);
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//~^ WARNING prefix `hey` is unknown [reserved_prefix]
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//~^ WARNING prefix `hey` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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m3!(hey #hey);
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//~^ WARNING prefix `hey` is unknown [reserved_prefix]
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//~^ WARNING prefix `hey` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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}
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@ -33,6 +33,6 @@ macro_rules! quote {
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quote! {
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#name = #kind #value
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//~^ WARNING prefix `kind` is unknown [reserved_prefix]
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//~^ WARNING prefix `kind` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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}
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@ -2,7 +2,7 @@
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// run-rustfix
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// compile-flags: -Z unstable-options --edition 2018
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#![warn(reserved_prefix)]
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#![warn(reserved_prefixes)]
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macro_rules! m2 {
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($a:tt $b:tt) => {};
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@ -14,16 +14,16 @@ macro_rules! m3 {
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fn main() {
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m2!(z"hey");
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//~^ WARNING prefix `z` is unknown [reserved_prefix]
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//~^ WARNING prefix `z` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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m2!(prefix"hey");
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//~^ WARNING prefix `prefix` is unknown [reserved_prefix]
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//~^ WARNING prefix `prefix` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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m3!(hey#123);
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//~^ WARNING prefix `hey` is unknown [reserved_prefix]
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//~^ WARNING prefix `hey` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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m3!(hey#hey);
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//~^ WARNING prefix `hey` is unknown [reserved_prefix]
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//~^ WARNING prefix `hey` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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}
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@ -33,6 +33,6 @@ macro_rules! quote {
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quote! {
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#name = #kind#value
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//~^ WARNING prefix `kind` is unknown [reserved_prefix]
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//~^ WARNING prefix `kind` is unknown [reserved_prefixes]
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//~| WARNING hard error in Rust 2021
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}
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@ -7,8 +7,8 @@ LL | m2!(z"hey");
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note: the lint level is defined here
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--> $DIR/reserved-prefixes-migration.rs:5:9
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LL | #![warn(reserved_prefix)]
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| ^^^^^^^^^^^^^^^
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LL | #![warn(reserved_prefixes)]
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| ^^^^^^^^^^^^^^^^^
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= warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
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= note: for more information, see issue #84978 <https://github.com/rust-lang/rust/issues/84978>
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help: insert whitespace here to avoid this being parsed as a prefix in Rust 2021
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