rchain-toolkit/src/utils/rhoExprToVar.ts

Node JS utils and methods to interact with rchain's rnode api and proto interfaces

/*
  converts expr received by decoding buffers
  and decoding Par to javascript variables
*/
export const rhoExprToVar = (
  a: any
  //a: rnodeProtos.IExpr
): boolean | string | number | object | null => {
  if (a.g_string) {
    return a.g_string;
  } else if (a.g_uri) {
    return a.g_uri;
  } else if (a.g_int) {
    return parseInt(a.g_int as any, 10);
  } else if (a.g_bool) {
    return a.g_bool;
  } else if (a.e_list_body) {
    if (a.e_list_body && a.e_list_body.ps) {
      return a.e_list_body.ps.map((ps) => {
        if (ps.exprs && ps.exprs[0]) {
          return rhoExprToVar(ps.exprs[0]);
        } else {
          return null;
        }
      });
    } else {
      return [];
    }
  } else if (a.e_tuple_body) {
    if (a.e_tuple_body && a.e_tuple_body.ps) {
      return a.e_tuple_body.ps.map((ps) => {
        if (ps.exprs && ps.exprs[0]) {
          return rhoExprToVar(ps.exprs[0]);
        } else {
          return null;
        }
      });
    } else {
      return [];
    }
  } else if (a.e_set_body) {
    if (a.e_set_body && a.e_set_body.ps) {
      return a.e_set_body.ps.map((ps) => {
        if (ps.exprs && ps.exprs[0]) {
          return rhoExprToVar(ps.exprs[0]);
        } else {
          return null;
        }
      });
    } else {
      return [];
    }
  } else if (a.e_map_body) {
    const obj: { [key: string]: any } = {};
    if (a.e_map_body.kvs) {
      a.e_map_body.kvs.forEach((kv) => {
        if (kv.key && kv.key.exprs && kv.key.exprs[0]) {
          if (kv.value && kv.value.exprs && kv.value.exprs[0]) {
            obj[rhoExprToVar(kv.key.exprs[0]) as string] = rhoExprToVar(
              kv.value.exprs[0]
            );
          } else {
            obj[rhoExprToVar(kv.key.exprs[0]) as string] = null;
          }
        }
      });
      return obj;
    } else {
      return {};
    }
  } else {
    console.warn("Not implemented", a);
    return null;
  }
};