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Parse integers as BigInt (#2642)

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* Parse integer shape as BigInt

* Use implicit serde from BigInt crate
This commit is contained in:
Chris Gillespie
2020-10-06 10:30:18 -07:00
committed by GitHub
parent 93410c470e
commit a18b2702ca
5 changed files with 18 additions and 37 deletions
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4
crates/nu-protocol/src/value/primitive.rs
View File

@ -1,7 +1,7 @@
use crate::type_name::ShellTypeName;
use crate::value::column_path::ColumnPath;
use crate::value::range::{Range, RangeInclusion};
use crate::value::{serde_bigdecimal, serde_bigint};
use crate::value::serde_bigdecimal;
use bigdecimal::BigDecimal;
use chrono::{DateTime, Utc};
use nu_errors::{ExpectedRange, ShellError};
@ -25,7 +25,6 @@ pub enum Primitive {
/// An empty value
Nothing,
/// A "big int", an integer with arbitrarily large size (aka not limited to 64-bit)
#[serde(with = "serde_bigint")]
Int(BigInt),
/// A "big decimal", an decimal number with arbitrarily large size (aka not limited to 64-bit)
#[serde(with = "serde_bigdecimal")]
@ -45,7 +44,6 @@ pub enum Primitive {
/// A date value, in UTC
Date(DateTime<Utc>),
/// A count in the number of nanoseconds
#[serde(with = "serde_bigint")]
Duration(BigInt),
/// A range of values
Range(Box<Range>),

26
crates/nu-protocol/src/value/serde_bigint.rs
View File

@ -1,26 +0,0 @@
use num_bigint::BigInt;
use num_traits::cast::FromPrimitive;
use num_traits::cast::ToPrimitive;
/// Enable big int serialization by providing a `serialize` function
pub fn serialize<S>(big_int: &BigInt, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
serde::Serialize::serialize(
&big_int
.to_i64()
.ok_or_else(|| serde::ser::Error::custom("expected a i64-sized bignum"))?,
serializer,
)
}
/// Enable big int deserialization by providing a `deserialize` function
pub fn deserialize<'de, D>(deserializer: D) -> Result<BigInt, D::Error>
where
D: serde::Deserializer<'de>,
{
let x: i64 = serde::Deserialize::deserialize(deserializer)?;
Ok(BigInt::from_i64(x)
.ok_or_else(|| serde::de::Error::custom("expected a i64-sized bignum"))?)
}