openethereum/src/json_aid.rs

69 lines
1.6 KiB
Rust
Raw Normal View History

use common::*;
pub fn clean(s: &str) -> &str {
if s.len() >= 2 && &s[0..2] == "0x" {
&s[2..]
} else {
s
}
}
pub fn bytes_from_json(json: &Json) -> Bytes {
let s = json.as_string().unwrap_or("");
if s.len() % 2 == 1 {
FromHex::from_hex(&("0".to_string() + &(clean(s).to_string()))[..]).unwrap_or(vec![])
} else {
FromHex::from_hex(clean(s)).unwrap_or(vec![])
}
}
pub fn address_from_json(json: &Json) -> Address {
let s = json.as_string().unwrap_or("0000000000000000000000000000000000000000");
if s.len() % 2 == 1 {
address_from_hex(&("0".to_string() + &(clean(s).to_string()))[..])
} else {
address_from_hex(clean(s))
}
}
pub fn h256_from_json(json: &Json) -> H256 {
let s = json.as_string().unwrap_or("0000000000000000000000000000000000000000000000000000000000000000");
if s.len() % 2 == 1 {
h256_from_hex(&("0".to_string() + &(clean(s).to_string()))[..])
} else {
h256_from_hex(clean(s))
}
}
2016-01-13 01:18:33 +01:00
pub fn u256_from_hex(s: &str) -> U256 {
if s.len() >= 2 && &s[0..2] == "0x" {
U256::from_str(&s[2..]).unwrap_or(U256::from(0))
} else {
U256::from_dec_str(s).unwrap_or(U256::from(0))
}
}
2016-01-13 01:18:33 +01:00
pub fn u256_from_json(json: &Json) -> U256 {
u256_from_hex(json.as_string().unwrap_or(""))
}
pub fn usize_from_json(json: &Json) -> usize {
u256_from_json(json).low_u64() as usize
}
pub fn u64_from_json(json: &Json) -> u64 {
u256_from_json(json).low_u64()
}
pub fn u32_from_json(json: &Json) -> u32 {
u256_from_json(json).low_u32()
}
pub fn u16_from_json(json: &Json) -> u16 {
u256_from_json(json).low_u32() as u16
}
pub fn u8_from_json(json: &Json) -> u8 {
u256_from_json(json).low_u32() as u8
}