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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /rust/syn/lifetime.rs
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linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'rust/syn/lifetime.rs')
-rw-r--r--rust/syn/lifetime.rs158
1 files changed, 158 insertions, 0 deletions
diff --git a/rust/syn/lifetime.rs b/rust/syn/lifetime.rs
new file mode 100644
index 000000000..24bec7fe9
--- /dev/null
+++ b/rust/syn/lifetime.rs
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+#[cfg(feature = "parsing")]
+use crate::lookahead;
+use proc_macro2::{Ident, Span};
+use std::cmp::Ordering;
+use std::fmt::{self, Display};
+use std::hash::{Hash, Hasher};
+
+/// A Rust lifetime: `'a`.
+///
+/// Lifetime names must conform to the following rules:
+///
+/// - Must start with an apostrophe.
+/// - Must not consist of just an apostrophe: `'`.
+/// - Character after the apostrophe must be `_` or a Unicode code point with
+/// the XID_Start property.
+/// - All following characters must be Unicode code points with the XID_Continue
+/// property.
+pub struct Lifetime {
+ pub apostrophe: Span,
+ pub ident: Ident,
+}
+
+impl Lifetime {
+ /// # Panics
+ ///
+ /// Panics if the lifetime does not conform to the bulleted rules above.
+ ///
+ /// # Invocation
+ ///
+ /// ```
+ /// # use proc_macro2::Span;
+ /// # use syn::Lifetime;
+ /// #
+ /// # fn f() -> Lifetime {
+ /// Lifetime::new("'a", Span::call_site())
+ /// # }
+ /// ```
+ pub fn new(symbol: &str, span: Span) -> Self {
+ if !symbol.starts_with('\'') {
+ panic!(
+ "lifetime name must start with apostrophe as in \"'a\", got {:?}",
+ symbol
+ );
+ }
+
+ if symbol == "'" {
+ panic!("lifetime name must not be empty");
+ }
+
+ if !crate::ident::xid_ok(&symbol[1..]) {
+ panic!("{:?} is not a valid lifetime name", symbol);
+ }
+
+ Lifetime {
+ apostrophe: span,
+ ident: Ident::new(&symbol[1..], span),
+ }
+ }
+
+ pub fn span(&self) -> Span {
+ self.apostrophe
+ .join(self.ident.span())
+ .unwrap_or(self.apostrophe)
+ }
+
+ pub fn set_span(&mut self, span: Span) {
+ self.apostrophe = span;
+ self.ident.set_span(span);
+ }
+}
+
+impl Display for Lifetime {
+ fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+ "'".fmt(formatter)?;
+ self.ident.fmt(formatter)
+ }
+}
+
+impl Clone for Lifetime {
+ fn clone(&self) -> Self {
+ Lifetime {
+ apostrophe: self.apostrophe,
+ ident: self.ident.clone(),
+ }
+ }
+}
+
+impl PartialEq for Lifetime {
+ fn eq(&self, other: &Lifetime) -> bool {
+ self.ident.eq(&other.ident)
+ }
+}
+
+impl Eq for Lifetime {}
+
+impl PartialOrd for Lifetime {
+ fn partial_cmp(&self, other: &Lifetime) -> Option<Ordering> {
+ Some(self.cmp(other))
+ }
+}
+
+impl Ord for Lifetime {
+ fn cmp(&self, other: &Lifetime) -> Ordering {
+ self.ident.cmp(&other.ident)
+ }
+}
+
+impl Hash for Lifetime {
+ fn hash<H: Hasher>(&self, h: &mut H) {
+ self.ident.hash(h);
+ }
+}
+
+#[cfg(feature = "parsing")]
+pub_if_not_doc! {
+ #[doc(hidden)]
+ #[allow(non_snake_case)]
+ pub fn Lifetime(marker: lookahead::TokenMarker) -> Lifetime {
+ match marker {}
+ }
+}
+
+#[cfg(feature = "parsing")]
+pub(crate) mod parsing {
+ use crate::error::Result;
+ use crate::lifetime::Lifetime;
+ use crate::parse::{Parse, ParseStream};
+
+ #[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
+ impl Parse for Lifetime {
+ fn parse(input: ParseStream) -> Result<Self> {
+ input.step(|cursor| {
+ cursor
+ .lifetime()
+ .ok_or_else(|| cursor.error("expected lifetime"))
+ })
+ }
+ }
+}
+
+#[cfg(feature = "printing")]
+mod printing {
+ use crate::lifetime::Lifetime;
+ use proc_macro2::{Punct, Spacing, TokenStream};
+ use quote::{ToTokens, TokenStreamExt};
+
+ #[cfg_attr(docsrs, doc(cfg(feature = "printing")))]
+ impl ToTokens for Lifetime {
+ fn to_tokens(&self, tokens: &mut TokenStream) {
+ let mut apostrophe = Punct::new('\'', Spacing::Joint);
+ apostrophe.set_span(self.apostrophe);
+ tokens.append(apostrophe);
+ self.ident.to_tokens(tokens);
+ }
+ }
+}