Function simplicity_outpoint_hash

src/simplicity/elements/elementsJets.c:874–900

outpoint_hash : CTX8 * S TWO^256 * TWO^256 * TWO^32 |- CTX8 */

/* outpoint_hash : CTX8 * S TWO^256 * TWO^256 * TWO^32 |- CTX8 */
bool simplicity_outpoint_hash(frameItem* dst, frameItem src, const txEnv* env) {
  (void) env; // env is unused.
  sha256_midstate midstate;
  unsigned char buf[36];
  sha256_context ctx = {.output = midstate.s};

  /* Read a SHA-256 context. */
  if (!simplicity_read_sha256_context(&ctx, &src)) return false;

  /* Read an optional pegin parent chain hash. */
  if (readBit(&src)) {
    /* Read a pegin parent chain hash. */
    read8s(buf, 32, &src);
    sha256_uchar(&ctx, 0x01);
    sha256_uchars(&ctx, buf, 32);
  } else {
    /* No pegin. */
    sha256_uchar(&ctx, 0x00);
    forwardBits(&src, 256);
  }

  /* Read an outpoint (hash and index). */
  read8s(buf, 36, &src);
  sha256_uchars(&ctx, buf, 36);

  return simplicity_write_sha256_context(dst, &ctx);
}

/* asset_amount_hash : CTX8 * Conf TWO^256 * Conf TWO^64 |- CTX8 */
bool simplicity_asset_amount_hash(frameItem* dst, frameItem src, const txEnv* env) {