handle cfg(bootstrap)

Author: pietroalbini

library/core/src/fmt/mod.rs

@@ -303,7 +303,6 @@ impl<'a> Arguments<'a> {
 
     /// When using the format_args!() macro, this function is used to generate the
     /// Arguments structure.
-    #[cfg(not(bootstrap))]
     #[inline]
     pub fn new_v1(pieces: &'a [&'static str], args: &'a [rt::Argument<'a>]) -> Arguments<'a> {
         if pieces.len() < args.len() || pieces.len() > args.len() + 1 {
@@ -312,16 +311,6 @@ impl<'a> Arguments<'a> {
         Arguments { pieces, fmt: None, args }
     }
 
-    #[cfg(bootstrap)]
-    #[inline]
-    #[rustc_const_unstable(feature = "const_fmt_arguments_new", issue = "none")]
-    pub const fn new_v1(pieces: &'a [&'static str], args: &'a [rt::Argument<'a>]) -> Arguments<'a> {
-        if pieces.len() < args.len() || pieces.len() > args.len() + 1 {
-            panic!("invalid args");
-        }
-        Arguments { pieces, fmt: None, args }
-    }
-
     /// This function is used to specify nonstandard formatting parameters.
     ///
     /// An `rt::UnsafeArg` is required because the following invariants must be held

library/core/src/future/mod.rs

@@ -70,7 +70,6 @@ pub unsafe fn get_context<'a, 'b>(cx: ResumeTy) -> &'a mut Context<'b> {
 #[doc(hidden)]
 #[unstable(feature = "gen_future", issue = "50547")]
 #[inline]
-#[cfg_attr(bootstrap, lang = "identity_future")]
 pub const fn identity_future<O, Fut: Future<Output = O>>(f: Fut) -> Fut {
     f
 }

library/core/src/intrinsics.rs

@@ -1823,14 +1823,12 @@ extern "rust-intrinsic" {
     /// with an even least significant digit.
     ///
     /// This intrinsic does not have a stable counterpart.
-    #[cfg(not(bootstrap))]
     #[rustc_nounwind]
     pub fn roundevenf32(x: f32) -> f32;
     /// Returns the nearest integer to an `f64`. Rounds half-way cases to the number
     /// with an even least significant digit.
     ///
     /// This intrinsic does not have a stable counterpart.
-    #[cfg(not(bootstrap))]
     #[rustc_nounwind]
     pub fn roundevenf64(x: f64) -> f64;
 
@@ -2262,7 +2260,6 @@ extern "rust-intrinsic" {
     /// This intrinsic can *only* be called where the argument is a local without
     /// projections (`read_via_copy(p)`, not `read_via_copy(*p)`) so that it
     /// trivially obeys runtime-MIR rules about derefs in operands.
-    #[cfg(not(bootstrap))]
     #[rustc_const_unstable(feature = "const_ptr_read", issue = "80377")]
     #[rustc_nounwind]
     pub fn read_via_copy<T>(p: *const T) -> T;
@@ -2470,7 +2467,6 @@ extern "rust-intrinsic" {
     /// This method creates a pointer to any `Some` value. If the argument is
     /// `None`, an invalid within-bounds pointer (that is still acceptable for
     /// constructing an empty slice) is returned.
-    #[cfg(not(bootstrap))]
     #[rustc_nounwind]
     pub fn option_payload_ptr<T>(arg: *const Option<T>) -> *const T;
 }

library/core/src/marker.rs

@@ -929,7 +929,6 @@ mod copy_impls {
     reason = "internal trait for implementing various traits for all function pointers"
 )]
 #[lang = "fn_ptr_trait"]
-#[cfg(not(bootstrap))]
 #[rustc_deny_explicit_impl]
 pub trait FnPtr: Copy + Clone {
     /// Returns the address of the function pointer.

library/core/src/option.rs

@@ -558,7 +558,7 @@ use crate::{
 /// The `Option` type. See [the module level documentation](self) for more.
 #[derive(Copy, PartialOrd, Eq, Ord, Debug, Hash)]
 #[rustc_diagnostic_item = "Option"]
-#[cfg_attr(not(bootstrap), lang = "Option")]
+#[lang = "Option"]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub enum Option<T> {
     /// No value.
@@ -765,13 +765,6 @@ impl<T> Option<T> {
     #[must_use]
     #[unstable(feature = "option_as_slice", issue = "108545")]
     pub fn as_slice(&self) -> &[T] {
-        #[cfg(bootstrap)]
-        match self {
-            Some(value) => slice::from_ref(value),
-            None => &[],
-        }
-
-        #[cfg(not(bootstrap))]
         // SAFETY: When the `Option` is `Some`, we're using the actual pointer
         // to the payload, with a length of 1, so this is equivalent to
         // `slice::from_ref`, and thus is safe.
@@ -832,13 +825,6 @@ impl<T> Option<T> {
     #[must_use]
     #[unstable(feature = "option_as_slice", issue = "108545")]
     pub fn as_mut_slice(&mut self) -> &mut [T] {
-        #[cfg(bootstrap)]
-        match self {
-            Some(value) => slice::from_mut(value),
-            None => &mut [],
-        }
-
-        #[cfg(not(bootstrap))]
         // SAFETY: When the `Option` is `Some`, we're using the actual pointer
         // to the payload, with a length of 1, so this is equivalent to
         // `slice::from_mut`, and thus is safe.

library/core/src/panicking.rs

@@ -165,7 +165,7 @@ fn panic_bounds_check(index: usize, len: usize) -> ! {
 #[cold]
 #[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))]
 #[track_caller]
-#[cfg_attr(not(bootstrap), lang = "panic_misaligned_pointer_dereference")] // needed by codegen for panic on misaligned pointer deref
+#[lang = "panic_misaligned_pointer_dereference"] // needed by codegen for panic on misaligned pointer deref
 fn panic_misaligned_pointer_dereference(required: usize, found: usize) -> ! {
     if cfg!(feature = "panic_immediate_abort") {
         super::intrinsics::abort()

library/core/src/primitive_docs.rs

@@ -1,8 +1,7 @@
 // `library/{std,core}/src/primitive_docs.rs` should have the same contents.
 // These are different files so that relative links work properly without
 // having to have `CARGO_PKG_NAME` set, but conceptually they should always be the same.
-#[cfg_attr(bootstrap, doc(primitive = "bool"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "bool")]
+#[rustc_doc_primitive = "bool"]
 #[doc(alias = "true")]
 #[doc(alias = "false")]
 /// The boolean type.
@@ -64,8 +63,7 @@
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_bool {}
 
-#[cfg_attr(bootstrap, doc(primitive = "never"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "never")]
+#[rustc_doc_primitive = "never"]
 #[doc(alias = "!")]
 //
 /// The `!` type, also called "never".
@@ -276,8 +274,7 @@ mod prim_bool {}
 #[unstable(feature = "never_type", issue = "35121")]
 mod prim_never {}
 
-#[cfg_attr(bootstrap, doc(primitive = "char"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "char")]
+#[rustc_doc_primitive = "char"]
 #[allow(rustdoc::invalid_rust_codeblocks)]
 /// A character type.
 ///
@@ -401,8 +398,7 @@ mod prim_never {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_char {}
 
-#[cfg_attr(bootstrap, doc(primitive = "unit"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "unit")]
+#[rustc_doc_primitive = "unit"]
 #[doc(alias = "(")]
 #[doc(alias = ")")]
 #[doc(alias = "()")]
@@ -464,8 +460,7 @@ impl Copy for () {
     // empty
 }
 
-#[cfg_attr(bootstrap, doc(primitive = "pointer"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "pointer")]
+#[rustc_doc_primitive = "pointer"]
 #[doc(alias = "ptr")]
 #[doc(alias = "*")]
 #[doc(alias = "*const")]
@@ -581,8 +576,7 @@ impl Copy for () {
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_pointer {}
 
-#[cfg_attr(bootstrap, doc(primitive = "array"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "array")]
+#[rustc_doc_primitive = "array"]
 #[doc(alias = "[]")]
 #[doc(alias = "[T;N]")] // unfortunately, rustdoc doesn't have fuzzy search for aliases
 #[doc(alias = "[T; N]")]
@@ -783,8 +777,7 @@ mod prim_pointer {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_array {}
 
-#[cfg_attr(bootstrap, doc(primitive = "slice"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "slice")]
+#[rustc_doc_primitive = "slice"]
 #[doc(alias = "[")]
 #[doc(alias = "]")]
 #[doc(alias = "[]")]
@@ -876,8 +869,7 @@ mod prim_array {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_slice {}
 
-#[cfg_attr(bootstrap, doc(primitive = "str"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "str")]
+#[rustc_doc_primitive = "str"]
 /// String slices.
 ///
 /// *[See also the `std::str` module](crate::str).*
@@ -944,8 +936,7 @@ mod prim_slice {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_str {}
 
-#[cfg_attr(bootstrap, doc(primitive = "tuple"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "tuple")]
+#[rustc_doc_primitive = "tuple"]
 #[doc(alias = "(")]
 #[doc(alias = ")")]
 #[doc(alias = "()")]
@@ -1088,8 +1079,7 @@ impl<T: Copy> Copy for (T,) {
     // empty
 }
 
-#[cfg_attr(bootstrap, doc(primitive = "f32"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "f32")]
+#[rustc_doc_primitive = "f32"]
 /// A 32-bit floating point type (specifically, the "binary32" type defined in IEEE 754-2008).
 ///
 /// This type can represent a wide range of decimal numbers, like `3.5`, `27`,
@@ -1155,8 +1145,7 @@ impl<T: Copy> Copy for (T,) {
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_f32 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "f64"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "f64")]
+#[rustc_doc_primitive = "f64"]
 /// A 64-bit floating point type (specifically, the "binary64" type defined in IEEE 754-2008).
 ///
 /// This type is very similar to [`f32`], but has increased
@@ -1171,78 +1160,67 @@ mod prim_f32 {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_f64 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "i8"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "i8")]
+#[rustc_doc_primitive = "i8"]
 //
 /// The 8-bit signed integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_i8 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "i16"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "i16")]
+#[rustc_doc_primitive = "i16"]
 //
 /// The 16-bit signed integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_i16 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "i32"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "i32")]
+#[rustc_doc_primitive = "i32"]
 //
 /// The 32-bit signed integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_i32 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "i64"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "i64")]
+#[rustc_doc_primitive = "i64"]
 //
 /// The 64-bit signed integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_i64 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "i128"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "i128")]
+#[rustc_doc_primitive = "i128"]
 //
 /// The 128-bit signed integer type.
 #[stable(feature = "i128", since = "1.26.0")]
 mod prim_i128 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "u8"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "u8")]
+#[rustc_doc_primitive = "u8"]
 //
 /// The 8-bit unsigned integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_u8 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "u16"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "u16")]
+#[rustc_doc_primitive = "u16"]
 //
 /// The 16-bit unsigned integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_u16 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "u32"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "u32")]
+#[rustc_doc_primitive = "u32"]
 //
 /// The 32-bit unsigned integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_u32 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "u64"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "u64")]
+#[rustc_doc_primitive = "u64"]
 //
 /// The 64-bit unsigned integer type.
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_u64 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "u128"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "u128")]
+#[rustc_doc_primitive = "u128"]
 //
 /// The 128-bit unsigned integer type.
 #[stable(feature = "i128", since = "1.26.0")]
 mod prim_u128 {}
 
-#[cfg_attr(bootstrap, doc(primitive = "isize"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "isize")]
+#[rustc_doc_primitive = "isize"]
 //
 /// The pointer-sized signed integer type.
 ///
@@ -1252,8 +1230,7 @@ mod prim_u128 {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_isize {}
 
-#[cfg_attr(bootstrap, doc(primitive = "usize"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "usize")]
+#[rustc_doc_primitive = "usize"]
 //
 /// The pointer-sized unsigned integer type.
 ///
@@ -1263,8 +1240,7 @@ mod prim_isize {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_usize {}
 
-#[cfg_attr(bootstrap, doc(primitive = "reference"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "reference")]
+#[rustc_doc_primitive = "reference"]
 #[doc(alias = "&")]
 #[doc(alias = "&mut")]
 //
@@ -1396,8 +1372,7 @@ mod prim_usize {}
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_ref {}
 
-#[cfg_attr(bootstrap, doc(primitive = "fn"))]
-#[cfg_attr(not(bootstrap), rustc_doc_primitive = "fn")]
+#[rustc_doc_primitive = "fn"]
 //
 /// Function pointers, like `fn(usize) -> bool`.
 ///