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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /rust/syn/group.rs
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'rust/syn/group.rs')
-rw-r--r--rust/syn/group.rs293
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diff --git a/rust/syn/group.rs b/rust/syn/group.rs
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+++ b/rust/syn/group.rs
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+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+use crate::error::Result;
+use crate::parse::ParseBuffer;
+use crate::token;
+use proc_macro2::extra::DelimSpan;
+use proc_macro2::Delimiter;
+
+// Not public API.
+#[doc(hidden)]
+pub struct Parens<'a> {
+ #[doc(hidden)]
+ pub token: token::Paren,
+ #[doc(hidden)]
+ pub content: ParseBuffer<'a>,
+}
+
+// Not public API.
+#[doc(hidden)]
+pub struct Braces<'a> {
+ #[doc(hidden)]
+ pub token: token::Brace,
+ #[doc(hidden)]
+ pub content: ParseBuffer<'a>,
+}
+
+// Not public API.
+#[doc(hidden)]
+pub struct Brackets<'a> {
+ #[doc(hidden)]
+ pub token: token::Bracket,
+ #[doc(hidden)]
+ pub content: ParseBuffer<'a>,
+}
+
+// Not public API.
+#[cfg(any(feature = "full", feature = "derive"))]
+#[doc(hidden)]
+pub struct Group<'a> {
+ #[doc(hidden)]
+ pub token: token::Group,
+ #[doc(hidden)]
+ pub content: ParseBuffer<'a>,
+}
+
+// Not public API.
+#[doc(hidden)]
+pub fn parse_parens<'a>(input: &ParseBuffer<'a>) -> Result<Parens<'a>> {
+ parse_delimited(input, Delimiter::Parenthesis).map(|(span, content)| Parens {
+ token: token::Paren(span),
+ content,
+ })
+}
+
+// Not public API.
+#[doc(hidden)]
+pub fn parse_braces<'a>(input: &ParseBuffer<'a>) -> Result<Braces<'a>> {
+ parse_delimited(input, Delimiter::Brace).map(|(span, content)| Braces {
+ token: token::Brace(span),
+ content,
+ })
+}
+
+// Not public API.
+#[doc(hidden)]
+pub fn parse_brackets<'a>(input: &ParseBuffer<'a>) -> Result<Brackets<'a>> {
+ parse_delimited(input, Delimiter::Bracket).map(|(span, content)| Brackets {
+ token: token::Bracket(span),
+ content,
+ })
+}
+
+#[cfg(any(feature = "full", feature = "derive"))]
+pub(crate) fn parse_group<'a>(input: &ParseBuffer<'a>) -> Result<Group<'a>> {
+ parse_delimited(input, Delimiter::None).map(|(span, content)| Group {
+ token: token::Group(span.join()),
+ content,
+ })
+}
+
+fn parse_delimited<'a>(
+ input: &ParseBuffer<'a>,
+ delimiter: Delimiter,
+) -> Result<(DelimSpan, ParseBuffer<'a>)> {
+ input.step(|cursor| {
+ if let Some((content, span, rest)) = cursor.group(delimiter) {
+ let scope = span.close();
+ let nested = crate::parse::advance_step_cursor(cursor, content);
+ let unexpected = crate::parse::get_unexpected(input);
+ let content = crate::parse::new_parse_buffer(scope, nested, unexpected);
+ Ok(((span, content), rest))
+ } else {
+ let message = match delimiter {
+ Delimiter::Parenthesis => "expected parentheses",
+ Delimiter::Brace => "expected curly braces",
+ Delimiter::Bracket => "expected square brackets",
+ Delimiter::None => "expected invisible group",
+ };
+ Err(cursor.error(message))
+ }
+ })
+}
+
+/// Parse a set of parentheses and expose their content to subsequent parsers.
+///
+/// # Example
+///
+/// ```
+/// # use quote::quote;
+/// #
+/// use syn::{parenthesized, token, Ident, Result, Token, Type};
+/// use syn::parse::{Parse, ParseStream};
+/// use syn::punctuated::Punctuated;
+///
+/// // Parse a simplified tuple struct syntax like:
+/// //
+/// // struct S(A, B);
+/// struct TupleStruct {
+/// struct_token: Token![struct],
+/// ident: Ident,
+/// paren_token: token::Paren,
+/// fields: Punctuated<Type, Token![,]>,
+/// semi_token: Token![;],
+/// }
+///
+/// impl Parse for TupleStruct {
+/// fn parse(input: ParseStream) -> Result<Self> {
+/// let content;
+/// Ok(TupleStruct {
+/// struct_token: input.parse()?,
+/// ident: input.parse()?,
+/// paren_token: parenthesized!(content in input),
+/// fields: content.parse_terminated(Type::parse, Token![,])?,
+/// semi_token: input.parse()?,
+/// })
+/// }
+/// }
+/// #
+/// # fn main() {
+/// # let input = quote! {
+/// # struct S(A, B);
+/// # };
+/// # syn::parse2::<TupleStruct>(input).unwrap();
+/// # }
+/// ```
+#[macro_export]
+#[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
+macro_rules! parenthesized {
+ ($content:ident in $cursor:expr) => {
+ match $crate::__private::parse_parens(&$cursor) {
+ $crate::__private::Ok(parens) => {
+ $content = parens.content;
+ parens.token
+ }
+ $crate::__private::Err(error) => {
+ return $crate::__private::Err(error);
+ }
+ }
+ };
+}
+
+/// Parse a set of curly braces and expose their content to subsequent parsers.
+///
+/// # Example
+///
+/// ```
+/// # use quote::quote;
+/// #
+/// use syn::{braced, token, Ident, Result, Token, Type};
+/// use syn::parse::{Parse, ParseStream};
+/// use syn::punctuated::Punctuated;
+///
+/// // Parse a simplified struct syntax like:
+/// //
+/// // struct S {
+/// // a: A,
+/// // b: B,
+/// // }
+/// struct Struct {
+/// struct_token: Token![struct],
+/// ident: Ident,
+/// brace_token: token::Brace,
+/// fields: Punctuated<Field, Token![,]>,
+/// }
+///
+/// struct Field {
+/// name: Ident,
+/// colon_token: Token![:],
+/// ty: Type,
+/// }
+///
+/// impl Parse for Struct {
+/// fn parse(input: ParseStream) -> Result<Self> {
+/// let content;
+/// Ok(Struct {
+/// struct_token: input.parse()?,
+/// ident: input.parse()?,
+/// brace_token: braced!(content in input),
+/// fields: content.parse_terminated(Field::parse, Token![,])?,
+/// })
+/// }
+/// }
+///
+/// impl Parse for Field {
+/// fn parse(input: ParseStream) -> Result<Self> {
+/// Ok(Field {
+/// name: input.parse()?,
+/// colon_token: input.parse()?,
+/// ty: input.parse()?,
+/// })
+/// }
+/// }
+/// #
+/// # fn main() {
+/// # let input = quote! {
+/// # struct S {
+/// # a: A,
+/// # b: B,
+/// # }
+/// # };
+/// # syn::parse2::<Struct>(input).unwrap();
+/// # }
+/// ```
+#[macro_export]
+#[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
+macro_rules! braced {
+ ($content:ident in $cursor:expr) => {
+ match $crate::__private::parse_braces(&$cursor) {
+ $crate::__private::Ok(braces) => {
+ $content = braces.content;
+ braces.token
+ }
+ $crate::__private::Err(error) => {
+ return $crate::__private::Err(error);
+ }
+ }
+ };
+}
+
+/// Parse a set of square brackets and expose their content to subsequent
+/// parsers.
+///
+/// # Example
+///
+/// ```
+/// # use quote::quote;
+/// #
+/// use proc_macro2::TokenStream;
+/// use syn::{bracketed, token, Result, Token};
+/// use syn::parse::{Parse, ParseStream};
+///
+/// // Parse an outer attribute like:
+/// //
+/// // #[repr(C, packed)]
+/// struct OuterAttribute {
+/// pound_token: Token![#],
+/// bracket_token: token::Bracket,
+/// content: TokenStream,
+/// }
+///
+/// impl Parse for OuterAttribute {
+/// fn parse(input: ParseStream) -> Result<Self> {
+/// let content;
+/// Ok(OuterAttribute {
+/// pound_token: input.parse()?,
+/// bracket_token: bracketed!(content in input),
+/// content: content.parse()?,
+/// })
+/// }
+/// }
+/// #
+/// # fn main() {
+/// # let input = quote! {
+/// # #[repr(C, packed)]
+/// # };
+/// # syn::parse2::<OuterAttribute>(input).unwrap();
+/// # }
+/// ```
+#[macro_export]
+#[cfg_attr(docsrs, doc(cfg(feature = "parsing")))]
+macro_rules! bracketed {
+ ($content:ident in $cursor:expr) => {
+ match $crate::__private::parse_brackets(&$cursor) {
+ $crate::__private::Ok(brackets) => {
+ $content = brackets.content;
+ brackets.token
+ }
+ $crate::__private::Err(error) => {
+ return $crate::__private::Err(error);
+ }
+ }
+ };
+}