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Use 4 character indentation 

Bizarrely the impl block for `EcdsaSigHashType` uses 5 character
indentation.

Use 4 character indentation as is typical.
This commit is contained in:
Tobin Harding 2022-01-19 14:30:36 +11:00
parent 64451a2144
commit 8d780e8172
1 changed files with 59 additions and 59 deletions
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118
src/blockdata/transaction.rs
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@ -736,69 +736,69 @@ impl str::FromStr for EcdsaSigHashType {
} }
impl EcdsaSigHashType { impl EcdsaSigHashType {
/// Break the sighash flag into the "real" sighash flag and the ANYONECANPAY boolean /// Break the sighash flag into the "real" sighash flag and the ANYONECANPAY boolean
pub(crate) fn split_anyonecanpay_flag(self) -> (EcdsaSigHashType, bool) { pub(crate) fn split_anyonecanpay_flag(self) -> (EcdsaSigHashType, bool) {
match self { match self {
EcdsaSigHashType::All => (EcdsaSigHashType::All, false), EcdsaSigHashType::All => (EcdsaSigHashType::All, false),
EcdsaSigHashType::None => (EcdsaSigHashType::None, false), EcdsaSigHashType::None => (EcdsaSigHashType::None, false),
EcdsaSigHashType::Single => (EcdsaSigHashType::Single, false), EcdsaSigHashType::Single => (EcdsaSigHashType::Single, false),
EcdsaSigHashType::AllPlusAnyoneCanPay => (EcdsaSigHashType::All, true), EcdsaSigHashType::AllPlusAnyoneCanPay => (EcdsaSigHashType::All, true),
EcdsaSigHashType::NonePlusAnyoneCanPay => (EcdsaSigHashType::None, true), EcdsaSigHashType::NonePlusAnyoneCanPay => (EcdsaSigHashType::None, true),
EcdsaSigHashType::SinglePlusAnyoneCanPay => (EcdsaSigHashType::Single, true) EcdsaSigHashType::SinglePlusAnyoneCanPay => (EcdsaSigHashType::Single, true)
} }
} }
/// Reads a 4-byte uint32 as a sighash type. /// Reads a 4-byte uint32 as a sighash type.
#[deprecated(since="0.26.1", note="please use `from_u32_consensus` or `from_u32_standard` instead")] #[deprecated(since="0.26.1", note="please use `from_u32_consensus` or `from_u32_standard` instead")]
pub fn from_u32(n: u32) -> EcdsaSigHashType { pub fn from_u32(n: u32) -> EcdsaSigHashType {
Self::from_u32_consensus(n) Self::from_u32_consensus(n)
} }
/// Reads a 4-byte uint32 as a sighash type. /// Reads a 4-byte uint32 as a sighash type.
/// ///
/// **Note**: this replicates consensus behaviour, for current standardness rules correctness /// **Note**: this replicates consensus behaviour, for current standardness rules correctness
/// you probably want [Self::from_u32_standard]. /// you probably want [Self::from_u32_standard].
/// This might cause unexpected behavior because it does not roundtrip. That is, /// This might cause unexpected behavior because it does not roundtrip. That is,
/// `EcdsaSigHashType::from_u32_consensus(n) as u32 != n` for non-standard values of /// `EcdsaSigHashType::from_u32_consensus(n) as u32 != n` for non-standard values of
/// `n`. While verifying signatures, the user should retain the `n` and use it compute the /// `n`. While verifying signatures, the user should retain the `n` and use it compute the
/// signature hash message. /// signature hash message.
pub fn from_u32_consensus(n: u32) -> EcdsaSigHashType { pub fn from_u32_consensus(n: u32) -> EcdsaSigHashType {
// In Bitcoin Core, the SignatureHash function will mask the (int32) value with // In Bitcoin Core, the SignatureHash function will mask the (int32) value with
// 0x1f to (apparently) deactivate ACP when checking for SINGLE and NONE bits. // 0x1f to (apparently) deactivate ACP when checking for SINGLE and NONE bits.
// We however want to be matching also against on ACP-masked ALL, SINGLE, and NONE. // We however want to be matching also against on ACP-masked ALL, SINGLE, and NONE.
// So here we re-activate ACP. // So here we re-activate ACP.
let mask = 0x1f | 0x80; let mask = 0x1f | 0x80;
match n & mask { match n & mask {
// "real" sighashes // "real" sighashes
0x01 => EcdsaSigHashType::All, 0x01 => EcdsaSigHashType::All,
0x02 => EcdsaSigHashType::None, 0x02 => EcdsaSigHashType::None,
0x03 => EcdsaSigHashType::Single, 0x03 => EcdsaSigHashType::Single,
0x81 => EcdsaSigHashType::AllPlusAnyoneCanPay, 0x81 => EcdsaSigHashType::AllPlusAnyoneCanPay,
0x82 => EcdsaSigHashType::NonePlusAnyoneCanPay, 0x82 => EcdsaSigHashType::NonePlusAnyoneCanPay,
0x83 => EcdsaSigHashType::SinglePlusAnyoneCanPay, 0x83 => EcdsaSigHashType::SinglePlusAnyoneCanPay,
// catchalls // catchalls
x if x & 0x80 == 0x80 => EcdsaSigHashType::AllPlusAnyoneCanPay, x if x & 0x80 == 0x80 => EcdsaSigHashType::AllPlusAnyoneCanPay,
_ => EcdsaSigHashType::All _ => EcdsaSigHashType::All
} }
} }
/// Read a 4-byte uint32 as a standard sighash type, returning an error if the type /// Read a 4-byte uint32 as a standard sighash type, returning an error if the type
/// is non standard. /// is non standard.
pub fn from_u32_standard(n: u32) -> Result<EcdsaSigHashType, NonStandardSigHashType> { pub fn from_u32_standard(n: u32) -> Result<EcdsaSigHashType, NonStandardSigHashType> {
match n { match n {
// Standard sighashes, see https://github.com/bitcoin/bitcoin/blob/b805dbb0b9c90dadef0424e5b3bf86ac308e103e/src/script/interpreter.cpp#L189-L198 // Standard sighashes, see https://github.com/bitcoin/bitcoin/blob/b805dbb0b9c90dadef0424e5b3bf86ac308e103e/src/script/interpreter.cpp#L189-L198
0x01 => Ok(EcdsaSigHashType::All), 0x01 => Ok(EcdsaSigHashType::All),
0x02 => Ok(EcdsaSigHashType::None), 0x02 => Ok(EcdsaSigHashType::None),
0x03 => Ok(EcdsaSigHashType::Single), 0x03 => Ok(EcdsaSigHashType::Single),
0x81 => Ok(EcdsaSigHashType::AllPlusAnyoneCanPay), 0x81 => Ok(EcdsaSigHashType::AllPlusAnyoneCanPay),
0x82 => Ok(EcdsaSigHashType::NonePlusAnyoneCanPay), 0x82 => Ok(EcdsaSigHashType::NonePlusAnyoneCanPay),
0x83 => Ok(EcdsaSigHashType::SinglePlusAnyoneCanPay), 0x83 => Ok(EcdsaSigHashType::SinglePlusAnyoneCanPay),
non_standard => Err(NonStandardSigHashType(non_standard)) non_standard => Err(NonStandardSigHashType(non_standard))
} }
} }
/// Converts to a u32 /// Converts to a u32
pub fn as_u32(self) -> u32 { self as u32 } pub fn as_u32(self) -> u32 { self as u32 }
} }
impl From<EcdsaSigHashType> for u32 { impl From<EcdsaSigHashType> for u32 {