Enum clippy_utils::consts::Constant
source · pub enum Constant<'tcx> {
}
Expand description
A LitKind
-like enum to fold constant Expr
s into.
Variants§
Adt(Const<'tcx>)
Str(String)
A String
(e.g., “abc”).
Binary(Lrc<[u8]>)
A binary string (e.g., b"abc"
).
Char(char)
A single char
(e.g., 'a'
).
Int(u128)
An integer’s bit representation.
F32(f32)
An f32
.
F64(f64)
An f64
.
Bool(bool)
true
or false
.
Vec(Vec<Constant<'tcx>>)
An array of constants.
Repeat(Box<Constant<'tcx>>, u64)
Also an array, but with only one constant, repeated N times.
Tuple(Vec<Constant<'tcx>>)
A tuple of constants.
RawPtr(u128)
A raw pointer.
Ref(Box<Constant<'tcx>>)
A reference
Err
A literal with syntax error.
Implementations§
source§impl<'tcx> Constant<'tcx>
impl<'tcx> Constant<'tcx>
pub fn partial_cmp( tcx: TyCtxt<'_>, cmp_type: Ty<'_>, left: &Self, right: &Self ) -> Option<Ordering>
sourcepub fn int_value(
&self,
cx: &LateContext<'_>,
val_type: Ty<'_>
) -> Option<FullInt>
pub fn int_value( &self, cx: &LateContext<'_>, val_type: Ty<'_> ) -> Option<FullInt>
Returns the integer value or None
if self
or val_type
is not integer type.
pub fn peel_refs(self) -> Self
Trait Implementations§
Auto Trait Implementations§
impl<'tcx> !RefUnwindSafe for Constant<'tcx>
impl<'tcx> !Send for Constant<'tcx>
impl<'tcx> !Sync for Constant<'tcx>
impl<'tcx> Unpin for Constant<'tcx>
impl<'tcx> !UnwindSafe for Constant<'tcx>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 48 bytes
Size for each variant:
Adt
: 40 bytesStr
: 32 bytesBinary
: 24 bytesChar
: 12 bytesInt
: 32 bytesF32
: 12 bytesF64
: 16 bytesBool
: 9 bytesVec
: 32 bytesRepeat
: 24 bytesTuple
: 32 bytesRawPtr
: 32 bytesRef
: 16 bytesErr
: 0 bytes