Add explanatory comment

1 files changed, 6 insertions, 0 deletions

diff --git a/src/0x.ts b/src/0x.ts
index 37e25eb0f..70d0c7acf 100644
--- a/src/0x.ts
+++ b/src/0x.ts
@@ -315,6 +315,12 @@ export class ZeroEx {
         });
         return txReceiptPromise;
     }
+    /*
+     * `TokenWrapper` needs a token transfer proxy address. `TokenTransferProxy` address is fetched from
+     * an `ExchnageWrapper`. `ExchangeWrapper` needs `TokenWrapper` to validate orders. Cycle.
+     * In order to break this - we create this function here and pass it as a parameter to the `TokenWrapper`
+     * and `ProxyWrapper`.
+     */
     private async _getTokenTransferProxyAddressAsync(): Promise<string> {
         const tokenTransferProxyAddress = await (this.exchange as any)._getTokenTransferProxyAddressAsync();
         return tokenTransferProxyAddress;