From 400d57621b3e9a33679a528b5072449699f0a068 Mon Sep 17 00:00:00 2001
From: Richard Moore <github@ricmoo.com>
Date: Sun, 12 Feb 2023 22:03:37 -0500
Subject: [PATCH] Fixed ignored polling override for JsonRpcApiProvider.

---
 src.ts/providers/provider-jsonrpc.ts | 76 +++-------------------------
 1 file changed, 6 insertions(+), 70 deletions(-)

diff --git a/src.ts/providers/provider-jsonrpc.ts b/src.ts/providers/provider-jsonrpc.ts
index e73c572330..19d244d48b 100644
--- a/src.ts/providers/provider-jsonrpc.ts
+++ b/src.ts/providers/provider-jsonrpc.ts
@@ -23,6 +23,7 @@ import { AbstractProvider, UnmanagedSubscriber } from "./abstract-provider.js";
 import { AbstractSigner } from "./abstract-signer.js";
 import { Network } from "./network.js";
 import { FilterIdEventSubscriber, FilterIdPendingSubscriber } from "./subscriber-filterid.js";
+import { PollingEventSubscriber } from "./subscriber-polling.js";
 
 import type { TypedDataDomain, TypedDataField } from "../hash/index.js";
 import type { TransactionLike } from "../transaction/index.js";
@@ -628,6 +629,9 @@ export abstract class JsonRpcApiProvider extends AbstractProvider {
         if (sub.type === "pending") { return new FilterIdPendingSubscriber(this); }
 
         if (sub.type === "event") {
+            if (this._getOption("polling")) {
+                return new PollingEventSubscriber(this, sub.filter);
+            }
             return new FilterIdEventSubscriber(this, sub.filter);
         }
 
@@ -806,74 +810,6 @@ export abstract class JsonRpcApiProvider extends AbstractProvider {
             );
             e.info = { error, payload };
             return e;
-/*
-            let message = "missing revert data during JSON-RPC call";
-
-            const action = <"call" | "estimateGas" | "unknown">(({ eth_call: "call", eth_estimateGas: "estimateGas" })[method] || "unknown");
-            let data: null | string = null;
-            let reason: null | string = null;
-            const transaction = <{ from: string, to: string, data: string }>((<any>payload).params[0]);
-            const invocation = null;
-            let revert: null | { signature: string, name: string, args: Array<any> } = null;
-
-            if (result) {
-                // @TODO: Extract errorSignature, errorName, errorArgs, reason if
-                //        it is Error(string) or Panic(uint25)
-                message = "execution reverted during JSON-RPC call";
-                data = result.data;
-
-                let bytes = getBytes(data);
-                if (bytes.length % 32 !== 4) {
-                    message += " (could not parse reason; invalid data length)";
-
-                } else if (data.substring(0, 10) === "0x08c379a0") {
-                    // Error(string)
-                    try {
-                        if (bytes.length < 68) { throw new Error("bad length"); }
-                        bytes = bytes.slice(4);
-                        const pointer = getNumber(hexlify(bytes.slice(0, 32)));
-                        bytes = bytes.slice(pointer);
-                        if (bytes.length < 32) { throw new Error("overrun"); }
-                        const length = getNumber(hexlify(bytes.slice(0, 32)));
-                        bytes = bytes.slice(32);
-                        if (bytes.length < length) { throw new Error("overrun"); }
-                        reason = toUtf8String(bytes.slice(0, length));
-                        revert = {
-                            signature: "Error(string)",
-                            name: "Error",
-                            args: [ reason ]
-                        };
-                        message += `: ${ JSON.stringify(reason) }`;
-
-                    } catch (error) {
-                        console.log(error);
-                        message += " (could not parse reason; invalid data length)";
-                    }
-
-                } else if (data.substring(0, 10) === "0x4e487b71") {
-                    // Panic(uint256)
-                    try {
-                        if (bytes.length !== 36) { throw new Error("bad length"); }
-                        const arg = getNumber(hexlify(bytes.slice(4)));
-                        revert = {
-                            signature: "Panic(uint256)",
-                            name: "Panic",
-                            args: [ arg ]
-                        };
-                        reason = `Panic due to ${ PanicReasons.get(Number(arg)) || "UNKNOWN" }(${ arg })`;
-                        message += `: ${ reason }`;
-                    } catch (error) {
-                        console.log(error);
-                        message += " (could not parse panic reason)";
-                    }
-                }
-            }
-
-            return makeError(message, "CALL_EXCEPTION", {
-                action, data, reason, transaction, invocation, revert,
-                info: { payload, error }
-            });
-            */
         }
 
         // Only estimateGas and call can return arbitrary contract-defined text, so now we
@@ -904,7 +840,7 @@ export abstract class JsonRpcApiProvider extends AbstractProvider {
 
             if (message.match(/insufficient funds|base fee exceeds gas limit/i)) {
                 return makeError("insufficient funds for intrinsic transaction cost", "INSUFFICIENT_FUNDS", {
-                    transaction
+                    transaction, info: { error }
                 });
             }
 
@@ -926,7 +862,7 @@ export abstract class JsonRpcApiProvider extends AbstractProvider {
 
         if (message.match(/the method .* does not exist/i)) {
             return makeError("unsupported operation", "UNSUPPORTED_OPERATION", {
-                operation: payload.method
+                operation: payload.method, info: { error }
             });
         }