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Implement FromStr trait for Felt #75

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merged 2 commits into from
Jun 25, 2024
Merged

Implement FromStr trait for Felt #75

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e5bddb1
impl `FromStr` for `Felt`
kariy Jun 20, 2024
2fc06e4
add docs
kariy Jun 21, 2024
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15 changes: 15 additions & 0 deletions crates/starknet-types-core/src/felt/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
mod felt_arbitrary;

use core::ops::{Add, Mul, Neg};
use core::str::FromStr;

use num_bigint::{BigInt, BigUint, Sign};
use num_integer::Integer;
Expand Down Expand Up @@ -615,6 +616,20 @@ impl_from!(i32, i128);
impl_from!(i64, i128);
impl_from!(isize, i128);

impl FromStr for Felt {
type Err = FromStrError;

/// Converts a hex (0x-prefixed) or decimal string to a [Felt].
/// e.g., '0x123abc' or '1337'.
fn from_str(s: &str) -> Result<Self, Self::Err> {
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if s.starts_with("0x") {
Felt::from_hex(s)
} else {
Felt::from_dec_str(s)
}
}
}

impl Add<&Felt> for u64 {
type Output = Option<u64>;

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