bigdecimal/
impl_convert.rs

1//! Code for implementing From/To BigDecimals
2
3use crate::BigDecimal;
4use crate::stdlib::convert::TryFrom;
5
6use num_bigint::BigInt;
7
8
9macro_rules! impl_from_int_primitive {
10    ($t:ty) => {
11        impl From<$t> for BigDecimal {
12            fn from(n: $t) -> Self {
13                BigDecimal {
14                    int_val: n.into(),
15                    scale: 0,
16                }
17            }
18        }
19
20        impl From<&$t> for BigDecimal {
21            fn from(n: &$t) -> Self {
22                BigDecimal {
23                    int_val: (*n).into(),
24                    scale: 0,
25                }
26            }
27        }
28    };
29}
30
31impl From<u8> for BigDecimal {
    fn from(n: u8) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&u8> for BigDecimal {
    fn from(n: &u8) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(u8);
32impl From<u16> for BigDecimal {
    fn from(n: u16) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&u16> for BigDecimal {
    fn from(n: &u16) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(u16);
33impl From<u32> for BigDecimal {
    fn from(n: u32) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&u32> for BigDecimal {
    fn from(n: &u32) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(u32);
34impl From<u64> for BigDecimal {
    fn from(n: u64) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&u64> for BigDecimal {
    fn from(n: &u64) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(u64);
35impl From<u128> for BigDecimal {
    fn from(n: u128) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&u128> for BigDecimal {
    fn from(n: &u128) -> Self {
        BigDecimal { int_val: (*n).into(), scale: 0 }
    }
}impl_from_int_primitive!(u128);
36impl From<i8> for BigDecimal {
    fn from(n: i8) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&i8> for BigDecimal {
    fn from(n: &i8) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(i8);
37impl From<i16> for BigDecimal {
    fn from(n: i16) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&i16> for BigDecimal {
    fn from(n: &i16) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(i16);
38impl From<i32> for BigDecimal {
    fn from(n: i32) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&i32> for BigDecimal {
    fn from(n: &i32) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(i32);
39impl From<i64> for BigDecimal {
    fn from(n: i64) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&i64> for BigDecimal {
    fn from(n: &i64) -> Self { BigDecimal { int_val: (*n).into(), scale: 0 } }
}impl_from_int_primitive!(i64);
40impl From<i128> for BigDecimal {
    fn from(n: i128) -> Self { BigDecimal { int_val: n.into(), scale: 0 } }
}
impl From<&i128> for BigDecimal {
    fn from(n: &i128) -> Self {
        BigDecimal { int_val: (*n).into(), scale: 0 }
    }
}impl_from_int_primitive!(i128);
41
42
43impl TryFrom<f32> for BigDecimal {
44    type Error = super::ParseBigDecimalError;
45
46    #[inline]
47    fn try_from(n: f32) -> Result<Self, Self::Error> {
48        crate::parsing::try_parse_from_f32(n)
49    }
50}
51
52impl TryFrom<f64> for BigDecimal {
53    type Error = super::ParseBigDecimalError;
54
55    #[inline]
56    fn try_from(n: f64) -> Result<Self, Self::Error> {
57        crate::parsing::try_parse_from_f64(n)
58    }
59}
60
61
62impl From<BigInt> for BigDecimal {
63    fn from(int_val: BigInt) -> Self {
64        BigDecimal {
65            int_val: int_val,
66            scale: 0,
67        }
68    }
69}
70
71// Anything that may be a big-integer paired with a scale
72// parameter may be a bigdecimal
73impl<T: Into<BigInt>> From<(T, i64)> for BigDecimal {
74    fn from((int_val, scale): (T, i64)) -> Self {
75        Self {
76            int_val: int_val.into(),
77            scale: scale,
78        }
79    }
80}
bigdecimal/impl_convert.rs

bigdecimal/
impl_convert.rs
