Struct rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags

pub struct CodegenFnAttrFlags {
    bits: u32,
}

Fields

bits: u32

Implementations

impl CodegenFnAttrFlags

pub const COLD: CodegenFnAttrFlags

#[cold]: a hint to LLVM that this function, when called, is never on the hot path.

pub const ALLOCATOR: CodegenFnAttrFlags

#[rustc_allocator]: a hint to LLVM that the pointer returned from this function is never null.

pub const UNWIND: CodegenFnAttrFlags

#[unwind]: an indicator that this function may unwind despite what its ABI signature may otherwise imply.

pub const RUSTC_ALLOCATOR_NOUNWIND: CodegenFnAttrFlags

#[rust_allocator_nounwind], an indicator that an imported FFI function will never unwind. Probably obsolete by recent changes with #[unwind], but hasn’t been removed/migrated yet

pub const NAKED: CodegenFnAttrFlags

#[naked]: an indicator to LLVM that no function prologue/epilogue should be generated.

pub const NO_MANGLE: CodegenFnAttrFlags

#[no_mangle]: an indicator that the function’s name should be the same as its symbol.

pub const RUSTC_STD_INTERNAL_SYMBOL: CodegenFnAttrFlags

#[rustc_std_internal_symbol]: an indicator that this symbol is a “weird symbol” for the standard library in that it has slightly different linkage, visibility, and reachability rules.

pub const THREAD_LOCAL: CodegenFnAttrFlags

#[thread_local]: indicates a static is actually a thread local piece of memory

pub const USED: CodegenFnAttrFlags

#[used]: indicates that LLVM can’t eliminate this function (but the linker can!).

pub const FFI_RETURNS_TWICE: CodegenFnAttrFlags

#[ffi_returns_twice], indicates that an extern function can return multiple times

pub const TRACK_CALLER: CodegenFnAttrFlags

#[track_caller]: allow access to the caller location

pub const FFI_PURE: CodegenFnAttrFlags

#[ffi_pure]: applies clang’s pure attribute to a foreign function declaration.

pub const FFI_CONST: CodegenFnAttrFlags

#[ffi_const]: applies clang’s const attribute to a foreign function declaration.

pub const CMSE_NONSECURE_ENTRY: CodegenFnAttrFlags

#[cmse_nonsecure_entry]: with a TrustZone-M extension, declare a function as an entry function from Non-Secure code.

pub const NO_COVERAGE: CodegenFnAttrFlags

#[no_coverage]: indicates that the function should be ignored by the MIR InstrumentCoverage pass and not added to the coverage map during codegen.

pub const fn empty() -> CodegenFnAttrFlags

Returns an empty set of flags

pub const fn all() -> CodegenFnAttrFlags

Returns the set containing all flags.

pub const fn bits(&self) -> u32

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: u32) -> Option<CodegenFnAttrFlags>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u32) -> CodegenFnAttrFlags

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: u32) -> CodegenFnAttrFlags

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

pub const fn intersects(&self, other: CodegenFnAttrFlags) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: CodegenFnAttrFlags) -> bool

Returns true all of the flags in other are contained within self.

pub fn insert(&mut self, other: CodegenFnAttrFlags)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: CodegenFnAttrFlags)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: CodegenFnAttrFlags)

Toggles the specified flags in-place.

pub fn set(&mut self, other: CodegenFnAttrFlags, value: bool)

Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl Binary for CodegenFnAttrFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl BitAnd<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn bitand(self, other: CodegenFnAttrFlags) -> CodegenFnAttrFlags

Returns the intersection between the two sets of flags.

type Output = CodegenFnAttrFlags

The resulting type after applying the & operator.

impl BitAndAssign<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn bitand_assign(&mut self, other: CodegenFnAttrFlags)

Disables all flags disabled in the set.

impl BitOr<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn bitor(self, other: CodegenFnAttrFlags) -> CodegenFnAttrFlags

Returns the union of the two sets of flags.

type Output = CodegenFnAttrFlags

The resulting type after applying the | operator.

impl BitOrAssign<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn bitor_assign(&mut self, other: CodegenFnAttrFlags)

Adds the set of flags.

impl BitXor<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn bitxor(self, other: CodegenFnAttrFlags) -> CodegenFnAttrFlags

Returns the left flags, but with all the right flags toggled.

type Output = CodegenFnAttrFlags

The resulting type after applying the ^ operator.

impl BitXorAssign<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn bitxor_assign(&mut self, other: CodegenFnAttrFlags)

Toggles the set of flags.

impl Clone for CodegenFnAttrFlags

fn clone(&self) -> CodegenFnAttrFlags

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CodegenFnAttrFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'tcx, __D: TyDecoder<'tcx>> Decodable<__D> for CodegenFnAttrFlags

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<'tcx, __E: TyEncoder<'tcx>> Encodable<__E> for CodegenFnAttrFlags

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Extend<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn extend<T: IntoIterator<Item = CodegenFnAttrFlags>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬 This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬 This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn from_iter<T: IntoIterator<Item = CodegenFnAttrFlags>>(
    iterator: T
) -> CodegenFnAttrFlags

Creates a value from an iterator.

impl Hash for CodegenFnAttrFlags

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CodegenFnAttrFlags

fn hash_stable(
    &self,
    __hcx: &mut StableHashingContext<'__ctx>,
    __hasher: &mut StableHasher
)

impl LowerHex for CodegenFnAttrFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Not for CodegenFnAttrFlags

fn not(self) -> CodegenFnAttrFlags

Returns the complement of this set of flags.

type Output = CodegenFnAttrFlags

The resulting type after applying the ! operator.

impl Octal for CodegenFnAttrFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Ord for CodegenFnAttrFlags

fn cmp(&self, other: &CodegenFnAttrFlags) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn eq(&self, other: &CodegenFnAttrFlags) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &CodegenFnAttrFlags) -> bool

This method tests for !=.

impl PartialOrd<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn partial_cmp(&self, other: &CodegenFnAttrFlags) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Sub<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn sub(self, other: CodegenFnAttrFlags) -> CodegenFnAttrFlags

Returns the set difference of the two sets of flags.

type Output = CodegenFnAttrFlags

The resulting type after applying the - operator.

impl SubAssign<CodegenFnAttrFlags> for CodegenFnAttrFlags

fn sub_assign(&mut self, other: CodegenFnAttrFlags)

Disables all flags enabled in the set.

impl UpperHex for CodegenFnAttrFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for CodegenFnAttrFlags

impl Eq for CodegenFnAttrFlags

impl StructuralEq for CodegenFnAttrFlags

impl StructuralPartialEq for CodegenFnAttrFlags