pub enum Num {
}
Expand description
A signed or unsigned numeric value.
Variants
U8(u8)
An 8-bit unsigned integer.
U16(u16)
A 16-bit unsigned integer.
U32(u32)
A 32-bit unsigned integer.
U64(u64)
A 64-bit unsigned integer.
U128(u128)
A 128-bit unsigned integer.
USize(usize)
An unsigned integer of platform width.
I8(i8)
An 8-bit signed integer.
I16(i16)
A 16-bit signed integer.
I32(i32)
A 32-bit signed integer.
I64(i64)
A 64-bit signed integer.
I128(i128)
A 128-bit signed integer.
ISize(isize)
A signed integer of platform width.
F32(f32)
A 32-bit wide float.
F64(f64)
A 64-bit wide float.
Implementations
sourceimpl Num
impl Num
sourcepub fn to_u32(self) -> Option<u32>
pub fn to_u32(self) -> Option<u32>
Converts self
into a u32
if self
is an unsigned variant with <= 32
bits.
Example
use figment::value::Num;
let num: Num = 123u8.into();
assert_eq!(num.to_u32(), Some(123));
let num: Num = (u32::max_value() as u64 + 1).into();
assert_eq!(num.to_u32(), None);
sourcepub fn to_u128(self) -> Option<u128>
pub fn to_u128(self) -> Option<u128>
Converts self
into a u128
if self
is an unsigned variant.
Example
use figment::value::Num;
let num: Num = 123u8.into();
assert_eq!(num.to_u128(), Some(123));
sourcepub fn to_i128(self) -> Option<i128>
pub fn to_i128(self) -> Option<i128>
Converts self
into an i128
if self
is a signed Value::Num
variant.
Example
use figment::value::Num;
let num: Num = 123i8.into();
assert_eq!(num.to_i128(), Some(123));
sourcepub fn to_actual(&self) -> Actual
pub fn to_actual(&self) -> Actual
Converts self
into an Actual
. All unsigned variants return
Actual::Unsigned
, signed variants Actual::Signed
, and float
variants Actual::Float
. Values exceeding the bit-width of the target
Actual
are truncated.
Example
use figment::{value::Num, error::Actual};
assert_eq!(Num::U8(10).to_actual(), Actual::Unsigned(10));
assert_eq!(Num::U64(2380).to_actual(), Actual::Unsigned(2380));
assert_eq!(Num::I8(127).to_actual(), Actual::Signed(127));
assert_eq!(Num::ISize(23923).to_actual(), Actual::Signed(23923));
assert_eq!(Num::F32(2.5).to_actual(), Actual::Float(2.5));
assert_eq!(Num::F64(2.103).to_actual(), Actual::Float(2.103));
Trait Implementations
sourceimpl<'de> Deserializer<'de> for Num
impl<'de> Deserializer<'de> for Num
type Error = Error
type Error = Error
The error type that can be returned if some error occurs during deserialization. Read more
sourcefn deserialize_any<V>(self, visitor: V) -> Result<V::Value>where
V: Visitor<'de>,
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value>where
V: Visitor<'de>,
Require the Deserializer
to figure out how to drive the visitor based
on what data type is in the input. Read more
sourcefn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a bool
value.
sourcefn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a u8
value.
sourcefn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a u16
value.
sourcefn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a u32
value.
sourcefn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a u64
value.
sourcefn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an i8
value.
sourcefn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an i16
value.
sourcefn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an i32
value.
sourcefn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an i64
value.
sourcefn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a f32
value.
sourcefn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a f64
value.
sourcefn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a char
value.
sourcefn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a string value and does
not benefit from taking ownership of buffered data owned by the
Deserializer
. Read more
sourcefn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a string value and would
benefit from taking ownership of buffered data owned by the
Deserializer
. Read more
sourcefn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a sequence of values.
sourcefn deserialize_enum<V>(
self,
name: &'static str,
variants: &'static [&'static str],
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_enum<V>(
self,
name: &'static str,
variants: &'static [&'static str],
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an enum value with a
particular name and possible variants. Read more
sourcefn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a byte array and does not
benefit from taking ownership of buffered data owned by the
Deserializer
. Read more
sourcefn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a byte array and would
benefit from taking ownership of buffered data owned by the
Deserializer
. Read more
sourcefn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a map of key-value pairs.
sourcefn deserialize_struct<V>(
self,
name: &'static str,
fields: &'static [&'static str],
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_struct<V>(
self,
name: &'static str,
fields: &'static [&'static str],
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a struct with a particular
name and fields. Read more
sourcefn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a unit value.
sourcefn deserialize_newtype_struct<V>(
self,
name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_newtype_struct<V>(
self,
name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a newtype struct with a
particular name. Read more
sourcefn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type needs to deserialize a value whose type
doesn’t matter because it is ignored. Read more
sourcefn deserialize_unit_struct<V>(
self,
name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_unit_struct<V>(
self,
name: &'static str,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a unit struct with a
particular name. Read more
sourcefn deserialize_tuple_struct<V>(
self,
name: &'static str,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_tuple_struct<V>(
self,
name: &'static str,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a tuple struct with a
particular name and number of fields. Read more
sourcefn deserialize_tuple<V>(
self,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_tuple<V>(
self,
len: usize,
visitor: V
) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting a sequence of values and
knows how many values there are without looking at the serialized data. Read more
sourcefn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an optional value. Read more
sourcefn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting the name of a struct
field or the discriminant of an enum variant. Read more
sourcefn deserialize_i128<V>(
self,
visitor: V
) -> Result<<V as Visitor<'de>>::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_i128<V>(
self,
visitor: V
) -> Result<<V as Visitor<'de>>::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an i128
value. Read more
sourcefn deserialize_u128<V>(
self,
visitor: V
) -> Result<<V as Visitor<'de>>::Value, Self::Error>where
V: Visitor<'de>,
fn deserialize_u128<V>(
self,
visitor: V
) -> Result<<V as Visitor<'de>>::Value, Self::Error>where
V: Visitor<'de>,
Hint that the Deserialize
type is expecting an u128
value. Read more
sourcefn is_human_readable(&self) -> bool
fn is_human_readable(&self) -> bool
Determine whether Deserialize
implementations should expect to
deserialize their human-readable form. Read more
sourceimpl PartialEq<Num> for Num
impl PartialEq<Num> for Num
impl Copy for Num
Auto Trait Implementations
impl RefUnwindSafe for Num
impl Send for Num
impl Sync for Num
impl Unpin for Num
impl UnwindSafe for Num
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