Enum clippy_utils::consts::Constant

source · [−]

pub enum Constant {
Show 13 variants
    Str(String),
    Binary(Lrc<[u8]>),
    Char(char),
    Int(u128),
    F32(f32),
    F64(f64),
    Bool(bool),
    Vec(Vec<Constant>),
    Repeat(Box<Constant>, u64),
    Tuple(Vec<Constant>),
    RawPtr(u128),
    Ref(Box<Constant>),
    Err(Symbol),
}

Expand description

A LitKind-like enum to fold constant Exprs 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.

`Repeat(Box<Constant>, u64)`

Also an array, but with only one constant, repeated N times.

`RawPtr(u128)`

A raw pointer.

`Err(Symbol)`

A literal with syntax error.

Implementations

source

impl Constant

source

pub fn partial_cmp(
 tcx: TyCtxt<'_>,
 cmp_type: Ty<'_>,
 left: &Self,
 right: &Self
) -> Option<Ordering>

source

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.

source

pub fn peel_refs(self) -> Self

Trait Implementations

source

impl Clone for Constant

source

fn clone(&self) -> Constant

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

source

impl Debug for Constant

source

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

Formats the value using the given formatter. Read more

source

impl Hash for Constant

source

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

Feeds this value into the given Hasher. Read more

1.3.0 · source

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

Feeds a slice of this type into the given Hasher. Read more

source

impl PartialEq<Constant> for Constant

source

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

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

1.0.0 · source

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

This method tests for !=.

Auto Trait Implementations

impl RefUnwindSafe for Constant

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

pub fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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 bytes
Binary: 23 bytes
Char: 7 bytes
Int: 23 bytes
F32: 7 bytes
F64: 15 bytes
Bool: 1 byte
Vec: 31 bytes
Repeat: 23 bytes
Tuple: 31 bytes
RawPtr: 23 bytes
Ref: 15 bytes
Err: 7 bytes

Enum clippy_utils::consts::Constant

Variants

Str(String)

Binary(Lrc<[u8]>)

Char(char)

Int(u128)

F32(f32)

F64(f64)

Bool(bool)

Vec(Vec<Constant>)

Repeat(Box<Constant>, u64)

Tuple(Vec<Constant>)

RawPtr(u128)

Ref(Box<Constant>)

Err(Symbol)

Implementations

impl Constant

pub fn partial_cmp( tcx: TyCtxt<'_>, cmp_type: Ty<'_>, left: &Self, right: &Self) -> Option<Ordering>

pub fn int_value( &self, cx: &LateContext<'_>, val_type: Ty<'_>) -> Option<FullInt>

pub fn peel_refs(self) -> Self

Trait Implementations

impl Clone for Constant

fn clone(&self) -> Constant

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

impl Debug for Constant

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

impl Hash for Constant

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

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

impl PartialEq<Constant> for Constant

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

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

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

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Layout

`Str(String)`

`Binary(Lrc<[u8]>)`

`Char(char)`

`Int(u128)`

`F32(f32)`

`F64(f64)`

`Bool(bool)`

`Vec(Vec<Constant>)`

`Repeat(Box<Constant>, u64)`

`Tuple(Vec<Constant>)`

`RawPtr(u128)`

`Ref(Box<Constant>)`

`Err(Symbol)`

pub fn partial_cmp(
tcx: TyCtxt<'_>,
cmp_type: Ty<'_>,
left: &Self,
right: &Self
) -> Option<Ordering>

pub fn int_value(
&self,
cx: &LateContext<'_>,
val_type: Ty<'_>
) -> Option<FullInt>

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

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

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,