Enum figment::value::Num [−][src]
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
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);
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));
Converts self
into a u128
if self
is an unsigned Value::Num
variant.
Example
use figment::value::Num; let num: Num = 123i8.into(); assert_eq!(num.to_i128(), Some(123));
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
The error type that can be returned if some error occurs during deserialization. Read more
Require the Deserializer
to figure out how to drive the visitor based
on what data type is in the input. Read more
Hint that the Deserialize
type is expecting a bool
value.
Hint that the Deserialize
type is expecting a u8
value.
Hint that the Deserialize
type is expecting a u16
value.
Hint that the Deserialize
type is expecting a u32
value.
Hint that the Deserialize
type is expecting a u64
value.
Hint that the Deserialize
type is expecting an i8
value.
Hint that the Deserialize
type is expecting an i16
value.
Hint that the Deserialize
type is expecting an i32
value.
Hint that the Deserialize
type is expecting an i64
value.
Hint that the Deserialize
type is expecting a f32
value.
Hint that the Deserialize
type is expecting a f64
value.
Hint that the Deserialize
type is expecting a char
value.
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
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
Hint that the Deserialize
type is expecting a sequence of values.
fn 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
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
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
Hint that the Deserialize
type is expecting a map of key-value pairs.
fn 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
Hint that the Deserialize
type is expecting a unit value.
Hint that the Deserialize
type is expecting a newtype struct with a
particular name. Read more
Hint that the Deserialize
type needs to deserialize a value whose type
doesn’t matter because it is ignored. Read more
Hint that the Deserialize
type is expecting a unit struct with a
particular name. Read more
Hint that the Deserialize
type is expecting a tuple struct with a
particular name and number of fields. Read more
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
Hint that the Deserialize
type is expecting an optional value. Read more
Hint that the Deserialize
type is expecting the name of a struct
field or the discriminant of an enum variant. Read more
Hint that the Deserialize
type is expecting an i128
value. Read more
Hint that the Deserialize
type is expecting an u128
value. Read more
Determine whether Deserialize
implementations should expect to
deserialize their human-readable form. Read more
Auto Trait Implementations
impl RefUnwindSafe for Num
impl UnwindSafe for Num
Blanket Implementations
Mutably borrows from an owned value. Read more
pub fn vzip(self) -> V