Function replaceOpsOld

packages/utils/src/script.ts:242–266

(script: Script, optimisations: string[][])

}

function replaceOpsOld(script: Script, optimisations: string[][]): Script {
  let asm = scriptToAsm(script);

  // Apply all optimisations in the cashproof file
  optimisations.forEach(([pattern, replacement]) => {
    asm = asm.replace(new RegExp(pattern, 'g'), replacement);
  });

  // Add optimisations that are not compatible with CashProof
  // CashProof can't prove OP_IF without parameters
  asm = asm.replace(/OP_NOT OP_IF/g, 'OP_NOTIF');
  // CashProof can't prove OP_CHECKMULTISIG without specifying N
  asm = asm.replace(/OP_CHECKMULTISIG OP_VERIFY/g, 'OP_CHECKMULTISIGVERIFY');
  // CashProof can't prove bitwise operators
  asm = asm.replace(/OP_SWAP OP_AND/g, 'OP_AND');
  asm = asm.replace(/OP_SWAP OP_OR/g, 'OP_OR');
  asm = asm.replace(/OP_SWAP OP_XOR/g, 'OP_XOR');
  asm = asm.replace(/OP_DUP OP_AND/g, '');
  asm = asm.replace(/OP_DUP OP_OR/g, '');

  // Remove any double spaces as a result of opcode removal
  asm = asm.replace(/\s+/g, ' ').trim();

  return asmToScript(asm);
}

interface ReplaceOpsResult {
  script: Script;