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rust-bitcoin-unsafe-fast
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check if output is OP_RETURN

This commit is contained in:
Tamas Blummer 2018-06-23 14:49:55 +02:00
parent 2ff5f8e51e
commit caeadb42be
1 changed files with 12 additions and 0 deletions
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12
src/blockdata/script.rs
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@ -357,6 +357,11 @@ impl Script {
self.0[1] == opcodes::All::OP_PUSHBYTES_20 as u8 self.0[1] == opcodes::All::OP_PUSHBYTES_20 as u8
} }
/// Check if this is an OP_RETURN output
pub fn is_op_return (&self) -> bool {
!self.0.is_empty() && (opcodes::All::from(self.0[0]) == opcodes::All::OP_RETURN)
}
/// Whether a script can be proven to have no satisfying input /// Whether a script can be proven to have no satisfying input
pub fn is_provably_unspendable(&self) -> bool { pub fn is_provably_unspendable(&self) -> bool {
!self.0.is_empty() && (opcodes::All::from(self.0[0]).classify() == opcodes::Class::ReturnOp || !self.0.is_empty() && (opcodes::All::from(self.0[0]).classify() == opcodes::Class::ReturnOp ||
@ -691,6 +696,13 @@ mod test {
assert_eq!(hex_script!("6aa9149eb21980dc9d413d8eac27314938b9da920ee53e87").is_provably_unspendable(), true); assert_eq!(hex_script!("6aa9149eb21980dc9d413d8eac27314938b9da920ee53e87").is_provably_unspendable(), true);
} }
#[test]
fn op_return_test() {
assert_eq!(hex_script!("6aa9149eb21980dc9d413d8eac27314938b9da920ee53e87").is_op_return(), true);
assert_eq!(hex_script!("76a914ee61d57ab51b9d212335b1dba62794ac20d2bcf988ac").is_op_return(), false);
assert_eq!(hex_script!("").is_op_return(), false);
}
#[test] #[test]
fn script_json_serialize() { fn script_json_serialize() {
use strason; use strason;