aiken/examples/acceptance_tests/036/validators/spend.ak

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use aiken/dict
use aiken/list
use aiken/transaction.{Output, ScriptContext}
use aiken/transaction/value.{PolicyId}
const my_policy_id: PolicyId = #[0, 0, 0, 0, 0]
pub fn has_policy_id(self: Output, policy_id: PolicyId) -> Bool {
self.value
|> value.tokens(policy_id)
|> dict.is_empty
|> not
}
pub fn spend(_datum: Data, _redeemer: Data, ctx: ScriptContext) -> Bool {
ctx.transaction.outputs
|> list.any(has_policy_id(_, my_policy_id))
}