Enum clippy_utils::consts::Constant
source · pub enum Constant {
}
Expand description
A LitKind
-like enum to fold constant Expr
s into.
Variants
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>)
An array of constants.
Repeat(Box<Constant>, u64)
Also an array, but with only one constant, repeated N times.
Tuple(Vec<Constant>)
A tuple of constants.
RawPtr(u128)
A raw pointer.
Ref(Box<Constant>)
A reference
Err
A literal with syntax error.
Implementations
sourceimpl Constant
impl Constant
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 RefUnwindSafe for Constant
impl !Send for Constant
impl !Sync for Constant
impl Unpin for Constant
impl UnwindSafe for Constant
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn 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: 32 bytes
Size for each variant:
Str
: 31 bytesBinary
: 23 bytesChar
: 7 bytesInt
: 23 bytesF32
: 7 bytesF64
: 15 bytesBool
: 1 byteVec
: 31 bytesRepeat
: 23 bytesTuple
: 31 bytesRawPtr
: 23 bytesRef
: 15 bytesErr
: 0 bytes