Updated dist files.

Added MinInt256 and MaxInt256 constants (#1576 ).
Version bumps for bn.js and hash.js to match elliptic and fix some build tools (#1478 ).
2021-05-31 19:06:24 -04:00 · 2021-05-31 18:32:33 -04:00 · 2021-05-31 18:29:26 -04:00 · 2021-05-31 18:20:32 -04:00 · 2021-05-31 18:16:30 -04:00 · 2021-05-31 17:40:32 -04:00
506 changed files with 6292 additions and 3017 deletions
--- a/.github/ISSUE_TEMPLATE/bug-report.md
+++ b/.github/ISSUE_TEMPLATE/bug-report.md
@@ -0,0 +1,24 @@
+---
+name: Bug Report
+about: Create a report to help us improve
+title: ''
+labels: investigate
+assignees: ''
+
+---
+
+Note: Not all sections may be relevant, but please be as thorough while remaining concise as possible. Remove this Notice and any sections that don't feel pertinent.
+
+If you are unsure if something is a bug, start a thread in the *"discussions"* tab above..
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Reproduction steps**
+Please include code snippets, with console.log output, any contract ABI, contract address, network and the full error.
+
+**Environment:**
+Please include anything that may be useful in diagnosing the issue. Node vs Browser? Geth vs Parity vs Ganache? Third Party tools, like Hardhat? Mobile vs. Desktop?
+
+**Search Terms**
+Often similar issues have come up before. Include any search terms you have tried in this repository's Issues (including closed issues) and *"Discussions"*, so if there are matching issues, we can be sure to add those keywords and link this issue to it, making it easier for people to find in the future.
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1 @@
+blank_issues_enabled: false
--- a/.github/ISSUE_TEMPLATE/documentation.md
+++ b/.github/ISSUE_TEMPLATE/documentation.md
@@ -0,0 +1,16 @@
+---
+name: Documentation
+about: Documentation request or suggestion
+title: ''
+labels: documentation
+assignees: ''
+
+---
+
+Please include anything about the [documentation](https://docs.ethers.io) you would like to see improved.
+
+- Missing information or details?
+- Wrong Information?
+- Dead or wrong links?
+- Something needs code examples?
+- General feedback or anything else?
--- a/.github/ISSUE_TEMPLATE/feature-request.md
+++ b/.github/ISSUE_TEMPLATE/feature-request.md
@@ -0,0 +1,22 @@
+---
+name: Feature Request
+about: Suggest a new feature for ethers
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Note: The best place to start a Feature Request is usually in the Discussions, to mull through the desired feature, current options and think through the impact on the library overall.
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
--- a/.github/ISSUE_TEMPLATE/other.md
+++ b/.github/ISSUE_TEMPLATE/other.md
@@ -0,0 +1,16 @@
+---
+name: Other
+about: Something else
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Generally this issue template should be used.
+
+If your issue is **not** a **Feature Request**, a **Bug Report** or problem with the **Documentation** you should probably be using the *"Discussion"* tab at the top.
+
+But for truly exceptional issues, please include the details here.
+
+Please also include any search terms you used when searching issues and discussions, so we can better tag those in the future.
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,68 @@ Changelog

 This change log is managed by `admin/cmds/update-versions` but may be manually updated.

+ethers/v5.3.0 (2021-05-31 18:41)
+--------------------------------
+
+  - Added MinInt256 and MaxInt256 constants. ([#1576](https://github.com/ethers-io/ethers.js/issues/1576); [bfcd05f](https://github.com/ethers-io/ethers.js/commit/bfcd05fcbb132d456d6f22f70c8ac9cf5b1826f7))
+  - Version bumps for bn.js and hash.js to match elliptic and fix some build tools. ([#1478](https://github.com/ethers-io/ethers.js/issues/1478); [819b1ac](https://github.com/ethers-io/ethers.js/commit/819b1ace5c9b16e29dc354ad80e0e5b71ac63c52))
+  - Removed Hangul checks in shims which crashes Android. ([#1519](https://github.com/ethers-io/ethers.js/issues/1519); [4b33114](https://github.com/ethers-io/ethers.js/commit/4b331148d980e3056ceaabdcd6e50a2aa1beb40d))
+  - Fixed ENS namehash with leading and trailing dots. ([#1605](https://github.com/ethers-io/ethers.js/issues/1605); [7adcf3b](https://github.com/ethers-io/ethers.js/commit/7adcf3b154669d9d1a0a66d5e15dabfbf6618180))
+  - Fixed broken variable in template string. ([#1624](https://github.com/ethers-io/ethers.js/issues/1624), [#1626](https://github.com/ethers-io/ethers.js/issues/1626); [630656e](https://github.com/ethers-io/ethers.js/commit/630656e949a8ffd940e4b66ec93ec07cd6ec2634))
+  - Fixed FixedNumber rounding for non-default formats. ([#1629](https://github.com/ethers-io/ethers.js/issues/1629); [8681cd5](https://github.com/ethers-io/ethers.js/commit/8681cd59698d02d040871aa889fc6ccc8550df98))
+  - Update ws dependency version to fix security. ([#1633](https://github.com/ethers-io/ethers.js/issues/1633), [#1634](https://github.com/ethers-io/ethers.js/issues/1634); [470551e](https://github.com/ethers-io/ethers.js/commit/470551e4ee3f1e343a26fc0775f9d9f7489129f8))
+
+ethers/v5.2.0 (2021-05-17 16:18)
+--------------------------------
+
+  - More aggresively check for mempool transactions sent from JsonRpcSigner. ([3316468](https://github.com/ethers-io/ethers.js/commit/3316468e3e0a5925cbecad85d894cc7d622394e7))
+  - Added initial support for detecting replacement transactions. ([#1477](https://github.com/ethers-io/ethers.js/issues/1477); [987bec8](https://github.com/ethers-io/ethers.js/commit/987bec87afaa365f291290a0136cedbc2b1992f2), [5144acf](https://github.com/ethers-io/ethers.js/commit/5144acf456b51c95bbe3950bd37609abecc7ebc7))
+  - Added convenience method for HD path derivation. ([aadc5cd](https://github.com/ethers-io/ethers.js/commit/aadc5cd3d65421e13ebd4e4d7c293ac3ece5e178))
+  - Added mnemonicPath option to cli. ([6e08809](https://github.com/ethers-io/ethers.js/commit/6e088099adabd7c5d2e6710062ebc62b316ba0f1))
+  - Added some popular Ethereum-compatible chains to networks. ([b6370f1](https://github.com/ethers-io/ethers.js/commit/b6370f13600a0c444342cbf16a83f010a929976b))
+  - Added debug event to Web3Provider. ([26464c5](https://github.com/ethers-io/ethers.js/commit/26464c54258f98c321638475d6cf11595186e76d))
+  - Abstracted EtherscanProivder to more easily fascilitate other Etherscan-supported chains. ([#1204](https://github.com/ethers-io/ethers.js/issues/1204), [#1473](https://github.com/ethers-io/ethers.js/issues/1473); [37a9c77](https://github.com/ethers-io/ethers.js/commit/37a9c77ab2acb7f75e1fc4cc918810d2fe59dd76))
+  - Added Custom Contract Errors. ([#1498](https://github.com/ethers-io/ethers.js/issues/1498); [6519609](https://github.com/ethers-io/ethers.js/commit/65196097f6626401638d85cf19e3d628a6223d5d), [483d67f](https://github.com/ethers-io/ethers.js/commit/483d67f55c15a76bcd853e889a0e35815d9850f7))
+  - More flexible FixedNumber input and output for strings with no decimals. ([#1019](https://github.com/ethers-io/ethers.js/issues/1019), [#1291](https://github.com/ethers-io/ethers.js/issues/1291), [#1463](https://github.com/ethers-io/ethers.js/issues/1463); [a9cdbe1](https://github.com/ethers-io/ethers.js/commit/a9cdbe1238c149a7167c6bb1a78f314805b52755))
+  - Added hex support for bigint. ([#1472](https://github.com/ethers-io/ethers.js/issues/1472); [4e9abfd](https://github.com/ethers-io/ethers.js/commit/4e9abfdee478a8423da4d55feea8c1aae78a8eb4))
+  - Added support for null entries in EventFilter. ([#1499](https://github.com/ethers-io/ethers.js/issues/1499); [3bb5fbf](https://github.com/ethers-io/ethers.js/commit/3bb5fbf533107e880377ecc14f30f314a5028e56))
+  - Add bigint to allowed BigNumberish types. ([#1472](https://github.com/ethers-io/ethers.js/issues/1472); [cadccc3](https://github.com/ethers-io/ethers.js/commit/cadccc3060b88ab2ca64aeb302717d2d1c95a897))
+  - Minor version bump. ([8e22e02](https://github.com/ethers-io/ethers.js/commit/8e22e0260eb70713c943c9e99ee8d66d71ebe56d))
+
+ethers/v5.1.4 (2021-04-22 06:33)
+--------------------------------
+
+  - Do not throw on ABI "error" type. ([#1493](https://github.com/ethers-io/ethers.js/issues/1493), [#1497](https://github.com/ethers-io/ethers.js/issues/1497); [bd05aed](https://github.com/ethers-io/ethers.js/commit/bd05aed070ac9e1421a3e2bff2ceea150bedf9b7))
+
+ethers/v5.1.3 (2021-04-19 21:01)
+--------------------------------
+
+  - Fixed JsonRpcProvider event-loop caching when using any network. ([#1484](https://github.com/ethers-io/ethers.js/issues/1484); [58488e7](https://github.com/ethers-io/ethers.js/commit/58488e78f9ef79715693e19b42663335aad88c03))
+  - Updated experimental Eip1193Bridge to support final EIP-1193 API. ([2911659](https://github.com/ethers-io/ethers.js/commit/29116593ba6c9c0fa491b13787cca8b233d4218c))
+  - Fail early for ABI decoding that will obviously run out of data. ([#1486](https://github.com/ethers-io/ethers.js/issues/1486); [51f0e1a](https://github.com/ethers-io/ethers.js/commit/51f0e1a52fb885e6f146f7b3b70ed487fd1c8f5a))
+  - Fixed BigNumber toBigInt return type. ([#1485](https://github.com/ethers-io/ethers.js/issues/1485); [c086962](https://github.com/ethers-io/ethers.js/commit/c0869623024bbf3671938dad03b131ff2ac54345))
+
+ethers/v5.1.2 (2021-04-18 19:31)
+--------------------------------
+
+  - Increase provider tests gas price for sending a transaction. ([8eaeba3](https://github.com/ethers-io/ethers.js/commit/8eaeba35f550c3d9aa1ae62eb8d8e0c912818f7f))
+  - Fixed run-checking non-filter Contract events. ([#1458](https://github.com/ethers-io/ethers.js/issues/1458); [4a44865](https://github.com/ethers-io/ethers.js/commit/4a44865a8c22adb9c55d5c37a81ee46ebc68228c))
+
+ethers/v5.1.1 (2021-04-18 02:47)
+--------------------------------
+
+  - Increased sendTransaction timeout to 15 minutes and pull Pocket from tx tests. ([08adc18](https://github.com/ethers-io/ethers.js/commit/08adc18a68bdc730633bdaaf2329014a84c12b2b))
+  - Export Eip1193Bridge in experimental package. ([1fcf4b6](https://github.com/ethers-io/ethers.js/commit/1fcf4b6ce6922d2bcb245375c967da3072f113ed))
+  - Prevent non-typed transactions from unsafely ignoring specified access lists. ([#1364](https://github.com/ethers-io/ethers.js/issues/1364); [4577444](https://github.com/ethers-io/ethers.js/commit/4577444c448f41114263077c5b54fbe6af749fd4))
+  - Update tests for current EIP-2930 support across backends. ([#1364](https://github.com/ethers-io/ethers.js/issues/1364); [1cb3199](https://github.com/ethers-io/ethers.js/commit/1cb3199e5cb01f5a55eb00ab6c7904606d7ea1dd))
+  - Removed underscore from the JsonRpcBatchProvider name. ([#62](https://github.com/ethers-io/ethers.js/issues/62), [#656](https://github.com/ethers-io/ethers.js/issues/656), [#892](https://github.com/ethers-io/ethers.js/issues/892); [ae0d5eb](https://github.com/ethers-io/ethers.js/commit/ae0d5eb7c2e37a003d893671db59c2d5719aea0f))
+  - Added better error detection when pre-EIP-155 transactions are disabled. ([b8df000](https://github.com/ethers-io/ethers.js/commit/b8df000c8f0ccd252b6049ac5a32a986d5a8e08d))
+  - Fix Android React Native environment shims which crash on normalizing Korean test. ([#1298](https://github.com/ethers-io/ethers.js/issues/1298); [eb1ec2f](https://github.com/ethers-io/ethers.js/commit/eb1ec2f2318e2851073ea1634e5003cdb53f1c1b))
+  - Fixed EIP-2930 transactions for EtherscanProvider. ([#1364](https://github.com/ethers-io/ethers.js/issues/1364); [b655089](https://github.com/ethers-io/ethers.js/commit/b65508995ce7d02f109a970ebeb625819beb915a))
+  - Re-enable AlchemyProvider Berlin tests. ([bec066b](https://github.com/ethers-io/ethers.js/commit/bec066bcb5ab8b95a7e7ce4848d7b76d7f248ccc))
+  - Added experimental _JsonRpcBatchProvider. ([#62](https://github.com/ethers-io/ethers.js/issues/62), [#656](https://github.com/ethers-io/ethers.js/issues/656), [#892](https://github.com/ethers-io/ethers.js/issues/892); [d55ab6d](https://github.com/ethers-io/ethers.js/commit/d55ab6d4e6025c484cc7e64486d927bd54a0772b))
+  - Cache JsonRpcProvider requests for certain methods per event loop. ([#1371](https://github.com/ethers-io/ethers.js/issues/1371); [1a7c4e8](https://github.com/ethers-io/ethers.js/commit/1a7c4e89efecc2b8afc8bea4c1f8f75fdaac08c5))
+
 ethers/v5.1.0 (2021-03-30 14:44)
 --------------------------------

--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ Installing
 **browser (UMD)**

 ```
-<script src="https://cdn.ethers.io/lib/ethers-5.0.umd.min.js" type="text/javascript">
+<script src="https://cdn.ethers.io/lib/ethers-5.1.umd.min.js" type="text/javascript">
 </script>
 ```

@@ -52,7 +52,7 @@ Installing

 ```
 <script type="module">
-    import { ethers } from "https://cdn.ethers.io/lib/ethers-5.0.esm.min.js";
+    import { ethers } from "https://cdn.ethers.io/lib/ethers-5.1.esm.min.js";
 </script>
 ```

--- a/docs.wrm/api/contract/contract.wrm
+++ b/docs.wrm/api/contract/contract.wrm
@@ -8,15 +8,15 @@ to be run with the input of the transaction data.

 _subsection: Creating Instances @<Contract--creating>

-_property: new ethers.Contract(address, abi, signerOrProvider) @src<contracts:constructor.Contract>
+_property: new ethers.Contract(address, abi, signerOrProvider) @src<contracts:class.Contract>

-_property: contract.attach(addressOrName) => [[Contract]]  @<Contract-attach> @SRC<contracts:Contract.attach>
+_property: contract.attach(addressOrName) => [[Contract]]  @<Contract-attach> @SRC<contracts:BaseContract.attach>
 Returns a new instance of the **Contract** attached to a new
 address. This is useful if there are multiple similar or identical
 copies of a Contract on the network and you wish to interact with
 each of them.

-_property: contract.connect(providerOrSigner) => [[Contract]]  @<Contract-connect> @SRC<contracts:Contract.connect>
+_property: contract.connect(providerOrSigner) => [[Contract]]  @<Contract-connect> @SRC<contracts:BaseContract.connect>
 Returns a new instance of the Contract, but connected to
 //providerOrSigner//.

@@ -65,11 +65,11 @@ _subsection: Events @<Contract--events>
 _property: contract.queryFilter(event [ , fromBlockOrBlockHash [ , toBlock ]) => Promise<Array<Event>> @<Contract-queryFilter> @SRC<contracts>
 Return Events that match the //event//.

-_property: contract.listenerCount([ event ]) => number  @<Contract-listenerCount> @SRC<contracts:Contract.listenerCount>
+_property: contract.listenerCount([ event ]) => number  @<Contract-listenerCount> @SRC<contracts:BaseContract.listenerCount>
 Return the number of listeners that are subscribed to //event//. If
 no event is provided, returns the total count of all events.

-_property: contract.listeners(event) => Array<Listener>  @<Contract-listeners> @SRC<contracts:Contract.listeners>
+_property: contract.listeners(event) => Array<Listener>  @<Contract-listeners> @SRC<contracts:BaseContract.listeners>
 Return a list of listeners that are subscribed to //event//.

 _property: contract.off(event, listener) => this  @<Contract-off> @SRC<contracts>
@@ -82,7 +82,7 @@ _property: contract.once(event, listener) => this  @<Contract-once> @SRC<contrac
 Subscribe once to //event// calling //listener// when the event
 occurs.

-_property: contract.removeAllListeners([ event ]) => this  @<Contract-removeAllListeners> @SRC<contracts:Contract.removeAllListeners>
+_property: contract.removeAllListeners([ event ]) => this  @<Contract-removeAllListeners> @SRC<contracts:BaseContract.removeAllListeners>
 Unsubscribe all listeners for //event//. If no event is provided,
 all events are unsubscribed.

@@ -120,6 +120,13 @@ number is used. Otherwise a [[BigNumber]] is returned.

 For bytes (both fixed length and dynamic), a [[DataHexString]] is returned.

+If the call reverts (or runs out of gas), a [CALL_EXCEPTION](errors--call-exception)
+will be thrown which will include:
+
+- ``error.address`` - the contract address
+- ``error.args`` - the arguments passed into the method
+- ``error.transaction`` - the transaction
+
 The //overrides// object for a read-only method may include any of:

 - ``overrides.from`` - the ``msg.sender`` (or ``CALLER``) to use during the
--- a/docs.wrm/api/contract/example.wrm
+++ b/docs.wrm/api/contract/example.wrm
@@ -136,7 +136,7 @@ Returns the number of decimal places used by this ERC-20 token. This can be
 used with [parseUnits](utils-parseUnits) when taking input from the user or
 [formatUnits](utils-formatunits] when displaying the token amounts in the UI.

-_property: erc20.getBalance(owner [, overrides ]) => Promise<[[BigNumber]]>
+_property: erc20.balanceOf(owner [, overrides ]) => Promise<[[BigNumber]]>
 Returns the balance of //owner// for this ERC-20 token.

 _property: erc20.symbol([ overrides ]) => Promise<string>
--- a/docs.wrm/api/providers/types.wrm
+++ b/docs.wrm/api/providers/types.wrm
@@ -202,7 +202,18 @@ The chain ID this transaction is authorized on, as specified by
 If the chain ID is 0 will disable EIP-155 and the transaction will be valid
 on any network. This can be **dangerous** and care should be taken, since it
 allows transactions to be replayed on networks that were possibly not
-intended.
+intended. Intentionally-replayable transactions are also disabled by default
+on recent versions of Geth and require configuration to enable.
+
+_property: transactionRequest.type => null | number
+
+The [[link-eip-2718]] type of this transaction envelope, or ``null``
+for legacy transactions that do not have an envelope.
+
+_property: transactionRequest.accessList => [[providers-AccessListish]]
+
+The [[providers-AccessList]] to include in an [[link-eip-2930]] transaction, which will
+include a ``type`` of ``1``.

 _heading: TransactionResponse @<providers-TransactionResponse> @INHERIT<[[Transaction]]>

@@ -241,6 +252,16 @@ the following properties:
 - ``error.transactionHash`` - the hash of the transaction
 - ``error.receipt`` - the actual receipt, with the status of ``0``

+_property: transactionRequest.type => null | number
+
+The [[link-eip-2718]] type of this transaction envelope, or ``null``
+for legacy transactions that do not have an envelope.
+
+_property: transactionRequest.accessList => [[providers-AccessList]]
+
+The [[providers-AccessList]] included in an [[link-eip-2930]] transaction, which will
+also have its ``type`` equal to ``1``.
+
 _heading: TransactionReceipt @<providers-TransactionReceipt>

 _property: receipt.to => string<[[address]]>
@@ -314,3 +335,110 @@ _property: receipt.status => boolean
 The status of a transaction is 1 is successful or 0 if it was
 reverted. Only transactions included in blocks [post-Byzantium Hard Fork](link-eip-609)
 have this property.
+
+_subsection: Access Lists
+
+An Access List is optional an includes a list of addresses and storage
+slots for that address which should be //warmed// or pre-fetched for
+use within the execution of this transaction. A //warmed// value has an
+additional upfront cost to access, but is discounted throughout the code
+execution for reading and writing.
+
+_heading: AccessListish @<providers-AccessListish>
+
+A looser description of an [[providers-AccessList]], which will be
+converted internally using [accessListify](utils-accessListify).
+
+
+It may be any of:
+
+- any [[providers-AccessList]]
+- an Array of 2-element Arrays, where the first element is the address
+  and second array is an array of storage keys
+- an object, whose keys represent the addresses and each value is an
+  array of storage keys
+
+When using the object form (the last option), the addresses and storage
+slots will be sorted. If an explicit order for the access list is
+required, one of the other forms must be used. Most developers
+**do not** require explicit order.
+
+_code: equivalent to the AccessList example below @lang<javascript>
+
+// Option 1:
+// AccessList
+// see below
+
+// Option 2:
+// Array< [ Address, Array<Bytes32> ] >
+[
+  [
+    "0x0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e",
+    [
+      "0x0000000000000000000000000000000000000000000000000000000000000004",
+      "0x0bcad17ecf260d6506c6b97768bdc2acfb6694445d27ffd3f9c1cfbee4a9bd6d"
+    ]
+  ],
+  [
+    "0x5FfC014343cd971B7eb70732021E26C35B744cc4",
+    [
+        "0x0000000000000000000000000000000000000000000000000000000000000001"
+    ]
+  ]
+]
+// <hide>
+;
+// </hide>
+
+// Option 3:
+// Record<Address, Array<Bytes32>>
+// <hide>
+(
+// </hide>
+{
+  "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e": [
+    "0x0000000000000000000000000000000000000000000000000000000000000004",
+    "0x0bcad17ecf260d6506c6b97768bdc2acfb6694445d27ffd3f9c1cfbee4a9bd6d"
+  ],
+  "0x5FfC014343cd971B7eb70732021E26C35B744cc4": [
+    "0x0000000000000000000000000000000000000000000000000000000000000001"
+  ]
+}
+// <hide>
+)
+// </hide>
+
+
+_heading: AccessList @<providers-AccessList>
+
+An [[link-eip-2930]] transaction allows an optional **AccessList**
+which causes a transaction to //warm// (i.e. pre-cache) another
+addresses state and the specified storage keys.
+
+This incurs an increased intrinsic cost for the transaction, but provides
+discounts for storage and state access throughout the execution of the
+transaction.
+
+_code: example access list
+
+// Array of objects with the form:
+// {
+//   address: Address,
+//   storageKey: Array< DataHexString< 32 > >
+// }
+
+[
+  {
+    address: "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e",
+    storageKeys: [
+        "0x0000000000000000000000000000000000000000000000000000000000000004",
+        "0x0bcad17ecf260d6506c6b97768bdc2acfb6694445d27ffd3f9c1cfbee4a9bd6d"
+    ]
+  },
+  {
+    address: "0x5FfC014343cd971B7eb70732021E26C35B744cc4",
+    storageKeys: [
+        "0x0000000000000000000000000000000000000000000000000000000000000001"
+    ]
+  }
+]
--- a/docs.wrm/api/utils/transactions.wrm
+++ b/docs.wrm/api/utils/transactions.wrm
@@ -97,6 +97,15 @@ used to encode the chain ID into the serialized transaction.

 _subsection: Functions  @<transactions--functions>

+_property: ethers.utils.accessListify(anAcceslistish) => [[providers-AccessList]]  @<utils-accessListify> @SRC<transactions:accessListify>
+Normalizes the [[providers-AccessListish]] //anAccessListish// into
+an [[providers-AccessList]].
+
+This is useful for other utility functions which wish to remain
+flexible as to the input parameter for access lists, such as
+when creating a [[Signer]] which needs to manipulate a possibly
+typed transaction envelope.
+
 _property: ethers.utils.parseTransaction(aBytesLike) => [[Transaction]]  @<utils-parseTransaction> @SRC<transactions:parse>
 Parses the transaction properties from a serialized transaction.

--- a/docs.wrm/concepts/events.wrm
+++ b/docs.wrm/concepts/events.wrm
@@ -164,7 +164,7 @@ _subsection: Solidity Topics @<events-solidity>
 This is a quick (and non-comprehensive) overview of how events are computed
 in Solidity.

-This is likely out of the scope for most developers, but may be intersting
+This is likely out of the scope for most developers, but may be interesting
 to those who want to learn a bit more about the underlying technology.

 Solidity provides two types of events, anonymous and non-anonymous. The
--- a/docs.wrm/config.js
+++ b/docs.wrm/config.js
@@ -161,7 +161,7 @@ function codeContextify(context) {

 module.exports = {
  title: "ethers",
-  subtitle: "v5.0",
+  subtitle: "v5.2",
  description: "Documentation for ethers, a complete, tiny and simple Ethereum library.",
  logo: "logo.svg",

@@ -204,7 +204,8 @@ module.exports = {
      "link-rtd": "https:/\/github.com/readthedocs/sphinx_rtd_theme",
      "link-semver": { name: "semver", url: "https:/\/semver.org" },
      "link-solidity": { name: "Solidity" , url: "https:/\/solidity.readthedocs.io/" },
-      "link-solidity-events": "https:/\/docs.soliditylang.org/en/v0.8.1/abi-spec.html#events",
+      "link-solidity-errors": "https:/\/docs.soliditylang.org/en/v0.8.4/abi-spec.html#errors",
+      "link-solidity-events": "https:/\/docs.soliditylang.org/en/v0.8.4/abi-spec.html#events",
      "link-sphinx": { name: "Sphinx", url: "https:/\/www.sphinx-doc.org/" },

      "link-alchemy-signup": "https:/\/dashboard.alchemyapi.io/signup?referral=55a35117-028e-4b7c-9e47-e275ad0acc6d",
@@ -246,7 +247,7 @@ module.exports = {

      "link-ethersio": "https:/\/ethers.io/",
      "link-ethers-docs": "https:/\/docs.ethers.io/",
-      "link-ethers-js": "https:/\/cdn.ethers.io/lib/ethers-5.0.esm.min.js",
+      "link-ethers-js": "https:/\/cdn.ethers.io/lib/ethers-5.1.esm.min.js",
      "link-ethers-npm": "https:/\/www.npmjs.com/search?q=%40ethersproject%2F",
      "link-ethers-asm-grammar": "https:/\/github.com/ethers-io/ethers.js/blob/master/packages/asm/grammar.jison",

@@ -260,6 +261,8 @@ module.exports = {
      "link-eip-1577": { name: "EIP-1577", url: "https:/\/eips.ethereum.org/EIPS/eip-1577" },
      "link-eip-2098": { name: "EIP-2098", url: "https:/\/eips.ethereum.org/EIPS/eip-2098" },
      "link-eip-2304": { name: "EIP-2304", url: "https:/\/eips.ethereum.org/EIPS/eip-2304" },
+      "link-eip-2718": { name: "EIP-2718", url: "https:/\/eips.ethereum.org/EIPS/eip-2718" },
+      "link-eip-2930": { name: "EIP-2930", url: "https:/\/eips.ethereum.org/EIPS/eip-2930" },
      "link-bip-39": { name: "BIP-39", url: "https:/\/en.bitcoin.it/wiki/BIP_0039" },
      "link-bip-32": { name: "BIP-32", url: "https:/\/github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" },
      "link-bip-44": { name: "BIP-44", url: "https:/\/en.bitcoin.it/wiki/BIP_0044" },
--- a/docs.wrm/getting-started.wrm
+++ b/docs.wrm/getting-started.wrm
@@ -101,7 +101,7 @@ with Ethereum and is available in all major Ethereum node implementations
 third-party web services (e.g. [[link-infura]]). It typically provides:

 - A connection to the Ethereum network (a [[Provider]])
- Holds your private key and can sign thing (a [[Signer]])
+- Holds your private key and can sign things (a [[Signer]])

 _code: Connecting to an RPC client @lang<script>

--- a/docs.wrm/license.wrm
+++ b/docs.wrm/license.wrm
@@ -7,7 +7,7 @@ of uses.

 _heading: MIT License

-//Copyright &copy; 2019 [Richard Moore](mailto:me@ricmoo.com).//
+//Copyright &copy; 2019-2021 [Richard Moore](mailto:me@ricmoo.com).//

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
--- a/karma-esm.conf.js
+++ b/karma-esm.conf.js
@@ -35,7 +35,12 @@ module.exports = function(config) {
          // Cloudflare will block (on the testnet endpoints) any traffic
          // from a headless chome (based on the user agent), so we lie
          // This was take from Safari, because that is what I had on-hand
-          '--user-agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15']
+          '--user-agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15',
+
+          // https://stackoverflow.com/questions/58484124/karma-disconnectedreconnect-failed-before-timeout-of-with-chromeheadless
+          '--disable-gpu',
+          '--no-sandbox'
+        ],
      }
    },
    /*
--- a/karma-umd.conf.js
+++ b/karma-umd.conf.js
@@ -36,7 +36,12 @@ module.exports = function(config) {
          // Cloudflare will block (on the testnet endpoints) any traffic
          // from a headless chome (based on the user agent), so we lie
          // This was take from Safari, because that is what I had on-hand
-          '--user-agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15']
+          '--user-agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15',
+
+          // https://stackoverflow.com/questions/58484124/karma-disconnectedreconnect-failed-before-timeout-of-with-chromeheadless
+          '--disable-gpu',
+          '--no-sandbox'
+        ]
      }
    },
    /*
--- a/misc/admin/lib/build.js
+++ b/misc/admin/lib/build.js
@@ -1,5 +1,6 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.setupBuild = void 0;
 const path_1 = require("./path");
 const utils_1 = require("./utils");
 function setupConfig(outDir, moduleType, targetType) {
--- a/misc/admin/lib/changelog.js
+++ b/misc/admin/lib/changelog.js
@@ -1,4 +1,23 @@
 "use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
@@ -11,14 +30,8 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
 var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.getLatestChange = exports.generate = void 0;
 const fs_1 = __importDefault(require("fs"));
 const local = __importStar(require("./local"));
 const log_1 = require("./log");
--- a/misc/admin/lib/cmds/bump-minor-version.d.ts
+++ b/misc/admin/lib/cmds/bump-minor-version.d.ts
@@ -0,0 +1 @@
+export {};
--- a/misc/admin/lib/cmds/bump-minor-version.js
+++ b/misc/admin/lib/cmds/bump-minor-version.js
@@ -0,0 +1,75 @@
+"use strict";
+//import fs from "fs";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const semver_1 = __importDefault(require("semver"));
+const local = __importStar(require("../local"));
+const npm = __importStar(require("../npm"));
+const path_1 = require("../path");
+(function () {
+    return __awaiter(this, void 0, void 0, function* () {
+        const pNpm = yield npm.getPackage("ethers");
+        const newVersion = semver_1.default.inc(pNpm.version, "minor");
+        for (let i = 0; i < path_1.dirnames.length; i++) {
+            const dirname = path_1.dirnames[i];
+            const pLocal = local.getPackage(dirname);
+            const deps = Object.keys(pLocal.dependencies).reduce((accum, name) => {
+                let version = pLocal.dependencies[name];
+                const prefix = name.split("/")[0];
+                if (dirname === "ethers") {
+                    if (prefix === "@ethersproject") {
+                        if (!version.match(/^[0-9]+\.[0-9]+\.[0-9]+$/)) {
+                            throw new Error(`bad version for bumping: ${dirname}:${name}:${version}`);
+                        }
+                        version = newVersion;
+                    }
+                }
+                else {
+                    if (prefix === "ethers" || prefix === "@ethersproject") {
+                        if (version.substring(0, 1) !== "^") {
+                            throw new Error(`bad version for bumping: ${dirname}:${name}:${version}`);
+                        }
+                        version = "^" + newVersion;
+                    }
+                }
+                accum[name] = version;
+                return accum;
+            }, {});
+            const packageJsonPath = path_1.getPackageJsonPath(dirname);
+            local.updateJson(packageJsonPath, {
+                dependencies: deps,
+                version: newVersion
+            }, true);
+        }
+    });
+})();
--- a/misc/admin/lib/cmds/bump-versions.js
+++ b/misc/admin/lib/cmds/bump-versions.js
@@ -1,4 +1,23 @@
 "use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
@@ -11,13 +30,6 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
 var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
 const fs_1 = __importDefault(require("fs"));
 const semver_1 = __importDefault(require("semver"));
@@ -45,7 +57,14 @@ const utils_1 = require("../utils");
            const tarballHash = local.computeTarballHash(dirname);
            let version = pNpm.version;
            if (tarballHash !== pNpm.tarballHash) {
-                version = semver_1.default.inc(version, "patch");
+                if (semver_1.default.gt(pLocal.version, version)) {
+                    // Already have a more recent version locally
+                    version = pLocal.version;
+                }
+                else {
+                    // Bump the patch version from NPM
+                    version = semver_1.default.inc(version, "patch");
+                }
                output.push([
                    "  ",
                    log_1.colorify.blue(pLocal.name),
--- a/misc/admin/lib/cmds/link.js
+++ b/misc/admin/lib/cmds/link.js
@@ -35,7 +35,7 @@ function link(existing, path) {
    // Link
    const dir = path_1.dirname(path);
    utils_1.mkdir(dir);
-    fs_1.default.symlinkSync(existing, path);
+    fs_1.default.symlinkSync(existing, path, "junction");
 }
 (function () {
    return __awaiter(this, void 0, void 0, function* () {
--- a/misc/admin/lib/cmds/publish.js
+++ b/misc/admin/lib/cmds/publish.js
@@ -1,4 +1,23 @@
 "use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
@@ -11,14 +30,8 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
 var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.invalidate = exports.putObject = void 0;
 const { createHash } = require("crypto");
 const fs_1 = __importDefault(require("fs"));
 const aws_sdk_1 = __importDefault(require("aws-sdk"));
@@ -147,6 +160,8 @@ exports.invalidate = invalidate;
        }
        if (publishNames.indexOf("ethers") >= 0 || forcePublish) {
            const change = changelog_1.getLatestChange();
+            const patchVersion = change.version.substring(1);
+            const minorVersion = patchVersion.split(".").slice(0, 2).join(".");
            const awsAccessId = yield config_1.config.get("aws-upload-scripts-accesskey");
            const awsSecretKey = yield config_1.config.get("aws-upload-scripts-secretkey");
            // Publish tagged release on GitHub
@@ -163,7 +178,7 @@ exports.invalidate = invalidate;
                content += '<script type="text/javascript"\n';
                content += `        integrity="sha384-${hash}"\n`;
                content += '        crossorigin="anonymous"\n';
-                content += `        src="https:/\/cdn-cors.ethers.io/lib/ethers-${change.version.substring(1)}.umd.min.js">\n`;
+                content += `        src="https:/\/cdn-cors.ethers.io/lib/ethers-${patchVersion}.umd.min.js">\n`;
                content += '</script>\n';
                content += '```';
                // Publish the release
@@ -171,7 +186,7 @@ exports.invalidate = invalidate;
                const link = yield github_1.createRelease(username, password, change.version, change.title, content, beta, gitCommit);
                console.log(`${log_1.colorify.bold("Published release:")} ${link}`);
            }
-            // Upload libs to the CDN (as ethers-v5.0 and ethers-5.0.x)
+            // Upload libs to the CDN (as ethers-v5.1 and ethers-5.1.x)
            {
                const bucketNameLib = yield config_1.config.get("aws-upload-scripts-bucket");
                const originRootLib = yield config_1.config.get("aws-upload-scripts-root");
@@ -182,7 +197,7 @@ exports.invalidate = invalidate;
                    accessKeyId: awsAccessId,
                    secretAccessKey: awsSecretKey
                });
-                // Upload the libs to ethers-v5.0 and ethers-5.0.x
+                // Upload the libs to ethers-v5.1 and ethers-5.1.x
                const fileInfos = [
                    // The CORS-enabled versions on cdn-cors.ethers.io
                    {
@@ -190,39 +205,39 @@ exports.invalidate = invalidate;
                        originRoot: originRootCors,
                        suffix: "-cors",
                        filename: "packages/ethers/dist/ethers.esm.min.js",
-                        key: `ethers-${change.version.substring(1)}.esm.min.js`
+                        key: `ethers-${patchVersion}.esm.min.js`
                    },
                    {
                        bucketName: bucketNameCors,
                        originRoot: originRootCors,
                        suffix: "-cors",
                        filename: "packages/ethers/dist/ethers.umd.min.js",
-                        key: `ethers-${change.version.substring(1)}.umd.min.js`
+                        key: `ethers-${patchVersion}.umd.min.js`
                    },
                    // The non-CORS-enabled versions on cdn.ethers.io
                    {
                        bucketName: bucketNameLib,
                        originRoot: originRootLib,
                        filename: "packages/ethers/dist/ethers.esm.min.js",
-                        key: `ethers-${change.version.substring(1)}.esm.min.js`
+                        key: `ethers-${patchVersion}.esm.min.js`
                    },
                    {
                        bucketName: bucketNameLib,
                        originRoot: originRootLib,
                        filename: "packages/ethers/dist/ethers.umd.min.js",
-                        key: `ethers-${change.version.substring(1)}.umd.min.js`
+                        key: `ethers-${patchVersion}.umd.min.js`
                    },
                    {
                        bucketName: bucketNameLib,
                        originRoot: originRootLib,
                        filename: "packages/ethers/dist/ethers.esm.min.js",
-                        key: "ethers-5.0.esm.min.js"
+                        key: `ethers-${minorVersion}.esm.min.js`
                    },
                    {
                        bucketName: bucketNameLib,
                        originRoot: originRootLib,
                        filename: "packages/ethers/dist/ethers.umd.min.js",
-                        key: "ethers-5.0.umd.min.js"
+                        key: `ethers-${minorVersion}.umd.min.js`
                    },
                ];
                for (let i = 0; i < fileInfos.length; i++) {
--- a/misc/admin/lib/cmds/serve-docs.js
+++ b/misc/admin/lib/cmds/serve-docs.js
@@ -3,6 +3,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.start = exports.getMime = void 0;
 const fs_1 = __importDefault(require("fs"));
 const http_1 = require("http");
 const path_1 = require("path");
--- a/misc/admin/lib/cmds/spell-check.js
+++ b/misc/admin/lib/cmds/spell-check.js
@@ -25,22 +25,23 @@ const Words = fs_1.default.readFileSync("/usr/share/dict/words").toString().spli
 accessing addresses aligned autofill called cancelled changed censored
 clamping compiled computed configured consumed creating decoded decoding
 decreased decrypt decrypted decrypting deployed deploying deprecated detected
-discontinued earliest email enabled encoded encoder encoding encrypt
+discontinued earliest email emitted enabled encoded encoder encoding encrypt
 encrypted encrypting entries euro exceeded existing expected
 expired failed fetches formatted formatting funding generated
 hardened has highly ignoring implemented implementer imported including instantiate
 joined keyword labelled larger lookup matches mined modified modifies multi
 named needed nested neutered numeric offline optimizer overriding owned packed
-padded parsed parsing passed placeholder processing properties prototyping reached
-recommended recovered redacted remaining replaced required reverted
-serializes shared signed signing skipped stored supported tagging targetted
-throttled transactions typed uninstall unstake unsubscribe using verifies verifying website
+padded parsed parsing passed payload placeholder processing properties prototyping reached
+recommended recovered redacted remaining replaced repriced required reverted
+serializes shared signed signing skipped stats stored supported tagging targetted
+throttled transactions typed uninstall unstake unsubscribe untyped
+using verifies verifying website

 // Overly Specific Words
 bech BIP BIP39 BIP44 btc bzz crypto eip etc hashes hmac icap
 keccak ltc namehash ripemd RLP scrypt secp sha xdai

-blockhash
+blockhash bnb bnbt ethprice matic txlist

 bitcoin ethereum finney gwei kwei mwei satoshi szabo wei weth

@@ -54,15 +55,15 @@ jumpdest mstore shr shl xor
 ABIEncoder testcase numberish Wordlist

 // Common Code Strings
-abi addr api app arg arrayify asm basex bigint bignumber bn byte
+abi addr api app arg arrayify asm backend basex bigint bignumber bn byte
 bytecode callback calldata charset checksum ciphertext cli codepoint
 commify config
-contenthash ctr ctrl debug dd dklen eexist encseed eof ethaddr
+contenthash ctr ctrl debug dd dklen eexist encseed eof eq ethaddr
 ethseed ethers eval exec filename func gz gzip hid http https hw iv
 info init ipc json kdf kdfparams labelhash lang lib mm multihash nfc
 nfkc nfd nfkd nodehash notok nowait nullish oob opcode pbkdf pc plugin
-pragma pre prf repl rpc sighash topichash solc stdin stdout subclasses
-subnode timeout todo txt ufixed utc utf util url urlencoded uuid vm
+pragma pre prf recid repl rpc sighash topichash solc stdin stdout subclasses
+subnode timeout todo txt typeof ufixed utc utf util url urlencoded uuid vm
 vs websocket wikipedia www wx xe xpriv xpub xx yyyy zlib

 // AbiV2
--- a/misc/admin/lib/cmds/upload-docs.js
+++ b/misc/admin/lib/cmds/upload-docs.js
@@ -12,6 +12,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.putObject = exports.getKeys = void 0;
 const crypto_1 = __importDefault(require("crypto"));
 const fs_1 = __importDefault(require("fs"));
 const path_1 = require("path");
--- a/misc/admin/lib/config.js
+++ b/misc/admin/lib/config.js
@@ -12,6 +12,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.config = void 0;
 const crypto_1 = require("crypto");
 const fs_1 = __importDefault(require("fs"));
 const os_1 = __importDefault(require("os"));
--- a/misc/admin/lib/depgraph.js
+++ b/misc/admin/lib/depgraph.js
@@ -1,5 +1,6 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.sort = exports.getOrdered = void 0;
 const path_1 = require("./path");
 const local_1 = require("./local");
 class OrderedSet {
--- a/misc/admin/lib/geturl.js
+++ b/misc/admin/lib/geturl.js
@@ -12,6 +12,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.getUrl = void 0;
 const http_1 = __importDefault(require("http"));
 const https_1 = __importDefault(require("https"));
 const url_1 = require("url");
--- a/misc/admin/lib/git.js
+++ b/misc/admin/lib/git.js
@@ -9,6 +9,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
    });
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.getGitTag = void 0;
 const run_1 = require("./run");
 // Returns the most recent git commit hash for a given filename
 function getGitTag(filename) {
--- a/misc/admin/lib/github.js
+++ b/misc/admin/lib/github.js
@@ -12,6 +12,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.createRelease = exports.syncIssues = exports.getIssues = exports.fetchGitHub = void 0;
 const fs_1 = __importDefault(require("fs"));
 const zlib_1 = __importDefault(require("zlib"));
 const js_sha3_1 = require("js-sha3");
--- a/misc/admin/lib/local.js
+++ b/misc/admin/lib/local.js
@@ -3,6 +3,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.computeTarballHash = exports.getPackList = exports.getDependencies = exports.updateJson = exports.getPackage = void 0;
 const fs_1 = __importDefault(require("fs"));
 const path_1 = require("./path");
 const run_1 = require("./run");
--- a/misc/admin/lib/log.js
+++ b/misc/admin/lib/log.js
@@ -1,5 +1,6 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.getPassword = exports.getPrompt = exports.colorify = exports.getProgressBar = void 0;
 const utils_1 = require("./utils");
 // See: https://stackoverflow.com/questions/9781218/how-to-change-node-jss-console-font-color
 let disableColor = !(process.stdout.isTTY);
--- a/misc/admin/lib/npm.js
+++ b/misc/admin/lib/npm.js
@@ -12,6 +12,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.publish = exports.getPackage = void 0;
 const libnpmpublish_1 = require("libnpmpublish");
 const semver_1 = __importDefault(require("semver"));
 const geturl_1 = require("./geturl");
--- a/misc/admin/lib/path.js
+++ b/misc/admin/lib/path.js
@@ -3,6 +3,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.isEthers = exports.getPackageJsonPath = exports.getDirname = exports.getPackagePath = exports.packages = exports.dirnames = exports.dirs = exports.resolve = exports.root = void 0;
 const fs_1 = __importDefault(require("fs"));
 const path_1 = require("path");
 exports.root = path_1.resolve(__dirname, "../../../");
--- a/misc/admin/lib/run.js
+++ b/misc/admin/lib/run.js
@@ -1,5 +1,6 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.run = void 0;
 const child_process_1 = require("child_process");
 function run(progname, args, currentWorkingDirectory) {
    if (args == null) {
--- a/misc/admin/lib/utils.js
+++ b/misc/admin/lib/utils.js
@@ -12,6 +12,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.getDateTime = exports.mkdir = exports.resolveProperties = exports.saveJson = exports.loadJson = exports.atomicWrite = exports.sortRecords = exports.sha256 = exports.repeat = void 0;
 const fs_1 = __importDefault(require("fs"));
 const path_1 = require("path");
 const crypto_1 = require("crypto");
--- a/misc/admin/src.ts/cmds/bump-minor-version.ts
+++ b/misc/admin/src.ts/cmds/bump-minor-version.ts
@@ -0,0 +1,47 @@
+//import fs from "fs";
+
+import semver from "semver";
+
+import * as local from "../local";
+import * as npm from "../npm";
+import { dirnames, getPackageJsonPath } from "../path";
+
+(async function() {
+    const pNpm = await npm.getPackage("ethers");
+    const newVersion = semver.inc(pNpm.version, "minor");
+
+    for (let i = 0; i < dirnames.length; i++) {
+        const dirname = dirnames[i];
+        const pLocal = local.getPackage(dirname);
+
+        const deps = Object.keys(pLocal.dependencies).reduce((accum, name) => {
+            let version = pLocal.dependencies[name];
+
+            const prefix = name.split("/")[0];
+            if (dirname === "ethers") {
+                if (prefix === "@ethersproject") {
+                    if (!version.match(/^[0-9]+\.[0-9]+\.[0-9]+$/)) {
+                        throw new Error(`bad version for bumping: ${ dirname }:${ name }:${ version }`);
+                    }
+                    version = newVersion;
+                }
+            } else {
+                if (prefix === "ethers" || prefix === "@ethersproject") {
+                    if (version.substring(0, 1) !== "^") {
+                        throw new Error(`bad version for bumping: ${ dirname }:${ name }:${ version }`);
+                    }
+                    version = "^" + newVersion;
+                }
+            }
+            accum[name] = version;
+
+            return accum;
+        }, <Record<string, string>>{});
+
+        const packageJsonPath = getPackageJsonPath(dirname);
+        local.updateJson(packageJsonPath, {
+            dependencies: deps,
+            version: newVersion
+        }, true);
+    }
+})();
--- a/misc/admin/src.ts/cmds/bump-versions.ts
+++ b/misc/admin/src.ts/cmds/bump-versions.ts
@@ -36,7 +36,13 @@ import { loadJson, repeat, saveJson } from "../utils";
        let version = pNpm.version;

        if (tarballHash !== pNpm.tarballHash) {
-            version = semver.inc(version, "patch");
+            if (semver.gt(pLocal.version, version)) {
+                // Already have a more recent version locally
+                version = pLocal.version;
+            } else {
+                // Bump the patch version from NPM
+                version = semver.inc(version, "patch");
+            }

            output.push([
                "  ",
--- a/misc/admin/src.ts/cmds/link.ts
+++ b/misc/admin/src.ts/cmds/link.ts
@@ -21,7 +21,7 @@ function link(existing: string, path: string): void {
    // Link
    const dir = dirname(path);
    mkdir(dir);
-    fs.symlinkSync(existing, path);
+    fs.symlinkSync(existing, path, "junction");
 }

 (async function() {
--- a/misc/admin/src.ts/cmds/publish.ts
+++ b/misc/admin/src.ts/cmds/publish.ts
@@ -150,6 +150,9 @@ export function invalidate(cloudfront: AWS.CloudFront, distributionId: string):
    if (publishNames.indexOf("ethers") >= 0 || forcePublish) {
        const change = getLatestChange();

+        const patchVersion = change.version.substring(1);
+        const minorVersion = patchVersion.split(".").slice(0, 2).join(".")
+
        const awsAccessId = await config.get("aws-upload-scripts-accesskey");
        const awsSecretKey = await config.get("aws-upload-scripts-secretkey");

@@ -170,7 +173,7 @@ export function invalidate(cloudfront: AWS.CloudFront, distributionId: string):
            content += '<script type="text/javascript"\n';
            content += `        integrity="sha384-${ hash }"\n`;
            content += '        crossorigin="anonymous"\n';
-            content += `        src="https:/\/cdn-cors.ethers.io/lib/ethers-${ change.version.substring(1) }.umd.min.js">\n`;
+            content += `        src="https:/\/cdn-cors.ethers.io/lib/ethers-${ patchVersion }.umd.min.js">\n`;
            content += '</script>\n';
            content += '```';

@@ -180,7 +183,7 @@ export function invalidate(cloudfront: AWS.CloudFront, distributionId: string):
            console.log(`${ colorify.bold("Published release:") } ${ link }`);
        }

-        // Upload libs to the CDN (as ethers-v5.0 and ethers-5.0.x)
+        // Upload libs to the CDN (as ethers-v5.1 and ethers-5.1.x)
        {
            const bucketNameLib = await config.get("aws-upload-scripts-bucket");
            const originRootLib = await config.get("aws-upload-scripts-root");
@@ -194,7 +197,7 @@ export function invalidate(cloudfront: AWS.CloudFront, distributionId: string):
                secretAccessKey: awsSecretKey
            });

-            // Upload the libs to ethers-v5.0 and ethers-5.0.x
+            // Upload the libs to ethers-v5.1 and ethers-5.1.x
            const fileInfos: Array<{ bucketName: string, originRoot: string, filename: string, key: string, suffix?: string }> = [
                // The CORS-enabled versions on cdn-cors.ethers.io
                {
@@ -202,14 +205,14 @@ export function invalidate(cloudfront: AWS.CloudFront, distributionId: string):
                    originRoot: originRootCors,
                    suffix: "-cors",
                    filename: "packages/ethers/dist/ethers.esm.min.js",
-                    key: `ethers-${ change.version.substring(1) }.esm.min.js`
+                    key: `ethers-${ patchVersion }.esm.min.js`
                },
                {
                    bucketName: bucketNameCors,
                    originRoot: originRootCors,
                    suffix: "-cors",
                    filename: "packages/ethers/dist/ethers.umd.min.js",
-                    key: `ethers-${ change.version.substring(1) }.umd.min.js`
+                    key: `ethers-${ patchVersion }.umd.min.js`
                },

                // The non-CORS-enabled versions on cdn.ethers.io
@@ -217,25 +220,25 @@ export function invalidate(cloudfront: AWS.CloudFront, distributionId: string):
                    bucketName: bucketNameLib,
                    originRoot: originRootLib,
                    filename: "packages/ethers/dist/ethers.esm.min.js",
-                    key: `ethers-${ change.version.substring(1) }.esm.min.js`
+                    key: `ethers-${ patchVersion }.esm.min.js`
                },
                {
                    bucketName: bucketNameLib,
                    originRoot: originRootLib,
                    filename: "packages/ethers/dist/ethers.umd.min.js",
-                    key: `ethers-${ change.version.substring(1) }.umd.min.js`
+                    key: `ethers-${ patchVersion }.umd.min.js`
                },
                {
                    bucketName: bucketNameLib,
                    originRoot: originRootLib,
                    filename: "packages/ethers/dist/ethers.esm.min.js",
-                    key: "ethers-5.0.esm.min.js"
+                    key: `ethers-${ minorVersion }.esm.min.js`
                },
                {
                    bucketName: bucketNameLib,
                    originRoot: originRootLib,
                    filename: "packages/ethers/dist/ethers.umd.min.js",
-                    key: "ethers-5.0.umd.min.js"
+                    key: `ethers-${ minorVersion }.umd.min.js`
                },
            ];

--- a/misc/admin/src.ts/cmds/spell-check.ts
+++ b/misc/admin/src.ts/cmds/spell-check.ts
@@ -16,22 +16,23 @@ const Words = fs.readFileSync("/usr/share/dict/words").toString().split("\n").re
 accessing addresses aligned autofill called cancelled changed censored
 clamping compiled computed configured consumed creating decoded decoding
 decreased decrypt decrypted decrypting deployed deploying deprecated detected
-discontinued earliest email enabled encoded encoder encoding encrypt
+discontinued earliest email emitted enabled encoded encoder encoding encrypt
 encrypted encrypting entries euro exceeded existing expected
 expired failed fetches formatted formatting funding generated
 hardened has highly ignoring implemented implementer imported including instantiate
 joined keyword labelled larger lookup matches mined modified modifies multi
 named needed nested neutered numeric offline optimizer overriding owned packed
-padded parsed parsing passed placeholder processing properties prototyping reached
-recommended recovered redacted remaining replaced required reverted
-serializes shared signed signing skipped stored supported tagging targetted
-throttled transactions typed uninstall unstake unsubscribe using verifies verifying website
+padded parsed parsing passed payload placeholder processing properties prototyping reached
+recommended recovered redacted remaining replaced repriced required reverted
+serializes shared signed signing skipped stats stored supported tagging targetted
+throttled transactions typed uninstall unstake unsubscribe untyped
+using verifies verifying website

 // Overly Specific Words
 bech BIP BIP39 BIP44 btc bzz crypto eip etc hashes hmac icap
 keccak ltc namehash ripemd RLP scrypt secp sha xdai

-blockhash
+blockhash bnb bnbt ethprice matic txlist

 bitcoin ethereum finney gwei kwei mwei satoshi szabo wei weth

@@ -45,15 +46,15 @@ jumpdest mstore shr shl xor
 ABIEncoder testcase numberish Wordlist

 // Common Code Strings
-abi addr api app arg arrayify asm basex bigint bignumber bn byte
+abi addr api app arg arrayify asm backend basex bigint bignumber bn byte
 bytecode callback calldata charset checksum ciphertext cli codepoint
 commify config
-contenthash ctr ctrl debug dd dklen eexist encseed eof ethaddr
+contenthash ctr ctrl debug dd dklen eexist encseed eof eq ethaddr
 ethseed ethers eval exec filename func gz gzip hid http https hw iv
 info init ipc json kdf kdfparams labelhash lang lib mm multihash nfc
 nfkc nfd nfkd nodehash notok nowait nullish oob opcode pbkdf pc plugin
-pragma pre prf repl rpc sighash topichash solc stdin stdout subclasses
-subnode timeout todo txt ufixed utc utf util url urlencoded uuid vm
+pragma pre prf recid repl rpc sighash topichash solc stdin stdout subclasses
+subnode timeout todo txt typeof ufixed utc utf util url urlencoded uuid vm
 vs websocket wikipedia www wx xe xpriv xpub xx yyyy zlib

 // AbiV2
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
    "diff": "4.0.1",
    "flatworm": "0.0.2-beta.5",
    "jison": "0.4.18",
-    "karma": "5.2.3",
+    "karma": "6.3.2",
    "karma-chrome-launcher": "3.1.0",
    "karma-mocha": "2.0.1",
    "libnpmpublish": "3.0.1",
@@ -92,13 +92,13 @@
    "@types/mocha": "^5.2.0",
    "aes-js": "3.0.0",
    "bech32": "1.1.4",
-    "bn.js": "^4.4.0",
+    "bn.js": "^4.11.9",
    "elliptic": "6.5.4",
-    "hash.js": "1.1.3",
+    "hash.js": "1.1.7",
    "js-sha3": "0.5.7",
    "scrypt-js": "3.0.1",
    "solc": "0.7.1",
    "tiny-inflate": "1.0.3",
-    "ws": "7.2.3"
+    "ws": "7.4.6"
  }
 }
--- a/packages/abi/lib.esm/_version.d.ts
+++ b/packages/abi/lib.esm/_version.d.ts
@@ -1,2 +1,2 @@
-export declare const version = "abi/5.1.0";
+export declare const version = "abi/5.3.0";
 //# sourceMappingURL=_version.d.ts.map
--- a/packages/abi/lib.esm/_version.js
+++ b/packages/abi/lib.esm/_version.js
@@ -1,2 +1,2 @@
-export const version = "abi/5.1.0";
+export const version = "abi/5.3.0";
 //# sourceMappingURL=_version.js.map
--- a/packages/abi/lib.esm/coders/array.d.ts.map
+++ b/packages/abi/lib.esm/coders/array.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"array.d.ts","sourceRoot":"","sources":["../../src.ts/coders/array.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,kBAAkB,CAAC;AAGjE,wBAAgB,IAAI,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,aAAa,CAAC,KAAK,CAAC,EAAE,MAAM,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;CAAE,GAAG,MAAM,CAuEzH;AAED,wBAAgB,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,KAAK,CAAC,KAAK,CAAC,GAAG,MAAM,CAiFnE;AAGD,qBAAa,UAAW,SAAQ,KAAK;IACjC,QAAQ,CAAC,KAAK,EAAE,KAAK,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;gBAEZ,KAAK,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM;IAS3D,YAAY,IAAI,KAAK,CAAC,GAAG,CAAC;IAW1B,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,KAAK,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG,MAAM;IAoBjD,MAAM,CAAC,MAAM,EAAE,MAAM,GAAG,GAAG;CAW9B"}
+{"version":3,"file":"array.d.ts","sourceRoot":"","sources":["../../src.ts/coders/array.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,kBAAkB,CAAC;AAGjE,wBAAgB,IAAI,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,aAAa,CAAC,KAAK,CAAC,EAAE,MAAM,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;CAAE,GAAG,MAAM,CAuEzH;AAED,wBAAgB,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,KAAK,CAAC,KAAK,CAAC,GAAG,MAAM,CAiFnE;AAGD,qBAAa,UAAW,SAAQ,KAAK;IACjC,QAAQ,CAAC,KAAK,EAAE,KAAK,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;gBAEZ,KAAK,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM;IAS3D,YAAY,IAAI,KAAK,CAAC,GAAG,CAAC;IAW1B,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,KAAK,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG,MAAM;IAoBjD,MAAM,CAAC,MAAM,EAAE,MAAM,GAAG,GAAG;CAsB9B"}
--- a/packages/abi/lib.esm/coders/array.js
+++ b/packages/abi/lib.esm/coders/array.js
@@ -185,6 +185,17 @@ export class ArrayCoder extends Coder {
        let count = this.length;
        if (count === -1) {
            count = reader.readValue().toNumber();
+            // Check that there is *roughly* enough data to ensure
+            // stray random data is not being read as a length. Each
+            // slot requires at least 32 bytes for their value (or 32
+            // bytes as a link to the data). This could use a much
+            // tighter bound, but we are erroring on the side of safety.
+            if (count * 32 > reader._data.length) {
+                logger.throwError("insufficient data length", Logger.errors.BUFFER_OVERRUN, {
+                    length: reader._data.length,
+                    count: count
+                });
+            }
        }
        let coders = [];
        for (let i = 0; i < count; i++) {
--- a/packages/abi/lib.esm/coders/array.js.map
+++ b/packages/abi/lib.esm/coders/array.js.map
--- a/packages/abi/lib.esm/fragments.d.ts
+++ b/packages/abi/lib.esm/fragments.d.ts
@@ -74,4 +74,11 @@ export declare class FunctionFragment extends ConstructorFragment {
    static fromString(value: string): FunctionFragment;
    static isFunctionFragment(value: any): value is FunctionFragment;
 }
+export declare class ErrorFragment extends Fragment {
+    format(format?: string): string;
+    static from(value: ErrorFragment | JsonFragment | string): ErrorFragment;
+    static fromObject(value: ErrorFragment | JsonFragment): ErrorFragment;
+    static fromString(value: string): ErrorFragment;
+    static isErrorFragment(value: any): value is ErrorFragment;
+}
 //# sourceMappingURL=fragments.d.ts.map
--- a/packages/abi/lib.esm/fragments.d.ts.map
+++ b/packages/abi/lib.esm/fragments.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"fragments.d.ts","sourceRoot":"","sources":["../src.ts/fragments.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,SAAS,EAAE,MAAM,0BAA0B,CAAC;AAOrD,MAAM,WAAW,gBAAgB;IAC7B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,UAAU,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;CACzD;AAED,MAAM,WAAW,YAAY;IACzB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IAEvB,QAAQ,CAAC,SAAS,CAAC,EAAE,OAAO,CAAC;IAE7B,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,QAAQ,CAAC,EAAE,OAAO,CAAC;IAC5B,QAAQ,CAAC,eAAe,CAAC,EAAE,MAAM,CAAC;IAElC,QAAQ,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAClD,QAAQ,CAAC,OAAO,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAEnD,QAAQ,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC;CACzB;AA4MD,eAAO,MAAM,WAAW,EAAE;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,MAAM,CAAA;CAYlD,CAAC;AAIH,qBAAa,SAAS;IAGlB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,QAAQ,EAAE,MAAM,CAAC;IAG1B,QAAQ,CAAC,OAAO,EAAE,OAAO,CAAC;IAI1B,QAAQ,CAAC,UAAU,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAKtC,QAAQ,CAAC,WAAW,EAAE,MAAM,CAAC;IAC7B,QAAQ,CAAC,aAAa,EAAE,SAAS,CAAC;IAElC,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAiC9C,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IA+C/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB,GAAG,SAAS,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAO5F,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,SAAS,GAAG,SAAS;IAWjE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAanE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD;AAcD,8BAAsB,QAAQ;IAE1B,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAElC,QAAQ,CAAC,WAAW,EAAE,OAAO,CAAC;gBAElB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAa9C,QAAQ,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAExC,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,MAAM,GAAG,QAAQ;IAU9D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,QAAQ;IAmB3D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,QAAQ;IAiB1C,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,QAAQ;CAGnD;AAMD,qBAAa,aAAc,SAAQ,QAAQ;IACvC,QAAQ,CAAC,SAAS,EAAE,OAAO,CAAC;IAE5B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAkC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,MAAM,GAAG,aAAa;IAOxE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,YAAY,GAAG,aAAa,GAAG,aAAa;IAiBrE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,aAAa;IA4B/C,MAAM,CAAC,eAAe,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,aAAa;CAG7D;AAqID,qBAAa,mBAAoB,SAAQ,QAAQ;IAC7C,eAAe,EAAE,MAAM,CAAC;IACxB,OAAO,EAAE,OAAO,CAAC;IACjB,GAAG,CAAC,EAAE,SAAS,CAAC;IAEhB,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAiC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,MAAM,GAAG,mBAAmB;IAOpF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,mBAAmB;IAwBjF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,mBAAmB;IAiBrD,MAAM,CAAC,qBAAqB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,mBAAmB;CAGzE;AAOD,qBAAa,gBAAiB,SAAQ,mBAAmB;IACrD,QAAQ,EAAE,OAAO,CAAC;IAClB,OAAO,CAAC,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAE3B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAoD/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,MAAM,GAAG,gBAAgB;IAO9E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,gBAAgB;IAuB3E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB;IAmClD,MAAM,CAAC,kBAAkB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,gBAAgB;CAGnE"}
+{"version":3,"file":"fragments.d.ts","sourceRoot":"","sources":["../src.ts/fragments.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,SAAS,EAAE,MAAM,0BAA0B,CAAC;AAOrD,MAAM,WAAW,gBAAgB;IAC7B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,UAAU,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;CACzD;AAED,MAAM,WAAW,YAAY;IACzB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IAEvB,QAAQ,CAAC,SAAS,CAAC,EAAE,OAAO,CAAC;IAE7B,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,QAAQ,CAAC,EAAE,OAAO,CAAC;IAC5B,QAAQ,CAAC,eAAe,CAAC,EAAE,MAAM,CAAC;IAElC,QAAQ,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAClD,QAAQ,CAAC,OAAO,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAEnD,QAAQ,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC;CACzB;AA4MD,eAAO,MAAM,WAAW,EAAE;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,MAAM,CAAA;CAYlD,CAAC;AAIH,qBAAa,SAAS;IAGlB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,QAAQ,EAAE,MAAM,CAAC;IAG1B,QAAQ,CAAC,OAAO,EAAE,OAAO,CAAC;IAI1B,QAAQ,CAAC,UAAU,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAKtC,QAAQ,CAAC,WAAW,EAAE,MAAM,CAAC;IAC7B,QAAQ,CAAC,aAAa,EAAE,SAAS,CAAC;IAElC,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAiC9C,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IA+C/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB,GAAG,SAAS,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAO5F,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,SAAS,GAAG,SAAS;IAWjE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAanE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD;AAcD,8BAAsB,QAAQ;IAE1B,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAElC,QAAQ,CAAC,WAAW,EAAE,OAAO,CAAC;gBAElB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAa9C,QAAQ,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAExC,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,MAAM,GAAG,QAAQ;IAU9D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,QAAQ;IAqB3D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,QAAQ;IAmB1C,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,QAAQ;CAGnD;AAMD,qBAAa,aAAc,SAAQ,QAAQ;IACvC,QAAQ,CAAC,SAAS,EAAE,OAAO,CAAC;IAE5B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAkC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,MAAM,GAAG,aAAa;IAOxE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,YAAY,GAAG,aAAa,GAAG,aAAa;IAiBrE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,aAAa;IA4B/C,MAAM,CAAC,eAAe,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,aAAa;CAG7D;AAqID,qBAAa,mBAAoB,SAAQ,QAAQ;IAC7C,eAAe,EAAE,MAAM,CAAC;IACxB,OAAO,EAAE,OAAO,CAAC;IACjB,GAAG,CAAC,EAAE,SAAS,CAAC;IAEhB,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAiC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,MAAM,GAAG,mBAAmB;IAOpF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,mBAAmB;IAwBjF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,mBAAmB;IAiBrD,MAAM,CAAC,qBAAqB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,mBAAmB;CAGzE;AAOD,qBAAa,gBAAiB,SAAQ,mBAAmB;IACrD,QAAQ,EAAE,OAAO,CAAC;IAClB,OAAO,CAAC,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAE3B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAoD/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,MAAM,GAAG,gBAAgB;IAO9E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,gBAAgB;IAuB3E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB;IAmClD,MAAM,CAAC,kBAAkB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,gBAAgB;CAGnE;AAaD,qBAAa,aAAc,SAAQ,QAAQ;IAEvC,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IA2B/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,MAAM,GAAG,aAAa;IAOxE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,aAAa;IAgBrE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,aAAa;IAgB/C,MAAM,CAAC,eAAe,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,aAAa;CAG7D"}
--- a/packages/abi/lib.esm/fragments.js
+++ b/packages/abi/lib.esm/fragments.js
@@ -354,6 +354,8 @@ export class Fragment {
                return EventFragment.fromObject(value);
            case "constructor":
                return ConstructorFragment.fromObject(value);
+            case "error":
+                return ErrorFragment.fromObject(value);
            case "fallback":
            case "receive":
                // @TODO: Something? Maybe return a FunctionFragment? A custom DefaultFunctionFragment?
@@ -375,6 +377,9 @@ export class Fragment {
        else if (value.split("(")[0].trim() === "constructor") {
            return ConstructorFragment.fromString(value.trim());
        }
+        else if (value.split(" ")[0] === "error") {
+            return ErrorFragment.fromString(value.substring(5).trim());
+        }
        return logger.throwArgumentError("unsupported fragment", "value", value);
    }
    static isFragment(value) {
@@ -730,10 +735,74 @@ export class FunctionFragment extends ConstructorFragment {
        return (value && value._isFragment && value.type === "function");
    }
 }
-//export class ErrorFragment extends Fragment {
-//}
 //export class StructFragment extends Fragment {
 //}
+function checkForbidden(fragment) {
+    const sig = fragment.format();
+    if (sig === "Error(string)" || sig === "Panic(uint256)") {
+        logger.throwArgumentError(`cannot specify user defined ${sig} error`, "fragment", fragment);
+    }
+    return fragment;
+}
+export class ErrorFragment extends Fragment {
+    format(format) {
+        if (!format) {
+            format = FormatTypes.sighash;
+        }
+        if (!FormatTypes[format]) {
+            logger.throwArgumentError("invalid format type", "format", format);
+        }
+        if (format === FormatTypes.json) {
+            return JSON.stringify({
+                type: "error",
+                name: this.name,
+                inputs: this.inputs.map((input) => JSON.parse(input.format(format))),
+            });
+        }
+        let result = "";
+        if (format !== FormatTypes.sighash) {
+            result += "error ";
+        }
+        result += this.name + "(" + this.inputs.map((input) => input.format(format)).join((format === FormatTypes.full) ? ", " : ",") + ") ";
+        return result.trim();
+    }
+    static from(value) {
+        if (typeof (value) === "string") {
+            return ErrorFragment.fromString(value);
+        }
+        return ErrorFragment.fromObject(value);
+    }
+    static fromObject(value) {
+        if (ErrorFragment.isErrorFragment(value)) {
+            return value;
+        }
+        if (value.type !== "error") {
+            logger.throwArgumentError("invalid error object", "value", value);
+        }
+        const params = {
+            type: value.type,
+            name: verifyIdentifier(value.name),
+            inputs: (value.inputs ? value.inputs.map(ParamType.fromObject) : [])
+        };
+        return checkForbidden(new ErrorFragment(_constructorGuard, params));
+    }
+    static fromString(value) {
+        let params = { type: "error" };
+        let parens = value.match(regexParen);
+        if (!parens) {
+            logger.throwArgumentError("invalid error signature", "value", value);
+        }
+        params.name = parens[1].trim();
+        if (params.name) {
+            verifyIdentifier(params.name);
+        }
+        params.inputs = parseParams(parens[2], false);
+        return checkForbidden(ErrorFragment.fromObject(params));
+    }
+    static isErrorFragment(value) {
+        return (value && value._isFragment && value.type === "error");
+    }
+}
 function verifyType(type) {
    // These need to be transformed to their full description
    if (type.match(/^uint($|[^1-9])/)) {
--- a/packages/abi/lib.esm/fragments.js.map
+++ b/packages/abi/lib.esm/fragments.js.map
--- a/packages/abi/lib.esm/index.d.ts
+++ b/packages/abi/lib.esm/index.d.ts
@@ -1,5 +1,5 @@
-import { ConstructorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, JsonFragmentType, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, JsonFragmentType, ParamType } from "./fragments";
 import { AbiCoder, CoerceFunc, defaultAbiCoder } from "./abi-coder";
 import { checkResultErrors, Indexed, Interface, LogDescription, Result, TransactionDescription } from "./interface";
-export { ConstructorFragment, EventFragment, Fragment, FunctionFragment, ParamType, FormatTypes, AbiCoder, defaultAbiCoder, Interface, Indexed, CoerceFunc, JsonFragment, JsonFragmentType, Result, checkResultErrors, LogDescription, TransactionDescription };
+export { ConstructorFragment, ErrorFragment, EventFragment, Fragment, FunctionFragment, ParamType, FormatTypes, AbiCoder, defaultAbiCoder, Interface, Indexed, CoerceFunc, JsonFragment, JsonFragmentType, Result, checkResultErrors, LogDescription, TransactionDescription };
 //# sourceMappingURL=index.d.ts.map
--- a/packages/abi/lib.esm/index.d.ts.map
+++ b/packages/abi/lib.esm/index.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,WAAW,EAAE,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,gBAAgB,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AACrJ,OAAO,EAAE,QAAQ,EAAE,UAAU,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AACpE,OAAO,EAAE,iBAAiB,EAAE,OAAO,EAAE,SAAS,EAAE,cAAc,EAAE,MAAM,EAAE,sBAAsB,EAAE,MAAM,aAAa,CAAC;AAEpH,OAAO,EACH,mBAAmB,EACnB,aAAa,EACb,QAAQ,EACR,gBAAgB,EAChB,SAAS,EACT,WAAW,EAEX,QAAQ,EACR,eAAe,EAEf,SAAS,EACT,OAAO,EAKP,UAAU,EACV,YAAY,EACZ,gBAAgB,EAEhB,MAAM,EACN,iBAAiB,EAEjB,cAAc,EACd,sBAAsB,EACzB,CAAC"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,aAAa,EAAE,WAAW,EAAE,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,gBAAgB,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AACpK,OAAO,EAAE,QAAQ,EAAE,UAAU,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AACpE,OAAO,EAAE,iBAAiB,EAAE,OAAO,EAAE,SAAS,EAAE,cAAc,EAAE,MAAM,EAAE,sBAAsB,EAAE,MAAM,aAAa,CAAC;AAEpH,OAAO,EACH,mBAAmB,EACnB,aAAa,EACb,aAAa,EACb,QAAQ,EACR,gBAAgB,EAChB,SAAS,EACT,WAAW,EAEX,QAAQ,EACR,eAAe,EAEf,SAAS,EACT,OAAO,EAKP,UAAU,EACV,YAAY,EACZ,gBAAgB,EAEhB,MAAM,EACN,iBAAiB,EAEjB,cAAc,EACd,sBAAsB,EACzB,CAAC"}
--- a/packages/abi/lib.esm/index.js
+++ b/packages/abi/lib.esm/index.js
@@ -1,6 +1,6 @@
 "use strict";
-import { ConstructorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, ParamType } from "./fragments";
 import { AbiCoder, defaultAbiCoder } from "./abi-coder";
 import { checkResultErrors, Indexed, Interface, LogDescription, TransactionDescription } from "./interface";
-export { ConstructorFragment, EventFragment, Fragment, FunctionFragment, ParamType, FormatTypes, AbiCoder, defaultAbiCoder, Interface, Indexed, checkResultErrors, LogDescription, TransactionDescription };
+export { ConstructorFragment, ErrorFragment, EventFragment, Fragment, FunctionFragment, ParamType, FormatTypes, AbiCoder, defaultAbiCoder, Interface, Indexed, checkResultErrors, LogDescription, TransactionDescription };
 //# sourceMappingURL=index.js.map
--- a/packages/abi/lib.esm/index.js.map
+++ b/packages/abi/lib.esm/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAAA,YAAY,CAAC;AAEb,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,WAAW,EAAE,QAAQ,EAAE,gBAAgB,EAAkC,SAAS,EAAE,MAAM,aAAa,CAAC;AACrJ,OAAO,EAAE,QAAQ,EAAc,eAAe,EAAE,MAAM,aAAa,CAAC;AACpE,OAAO,EAAE,iBAAiB,EAAE,OAAO,EAAE,SAAS,EAAE,cAAc,EAAU,sBAAsB,EAAE,MAAM,aAAa,CAAC;AAEpH,OAAO,EACH,mBAAmB,EACnB,aAAa,EACb,QAAQ,EACR,gBAAgB,EAChB,SAAS,EACT,WAAW,EAEX,QAAQ,EACR,eAAe,EAEf,SAAS,EACT,OAAO,EAUP,iBAAiB,EAEjB,cAAc,EACd,sBAAsB,EACzB,CAAC"}
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAAA,YAAY,CAAC;AAEb,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,aAAa,EAAE,WAAW,EAAE,QAAQ,EAAE,gBAAgB,EAAkC,SAAS,EAAE,MAAM,aAAa,CAAC;AACpK,OAAO,EAAE,QAAQ,EAAc,eAAe,EAAE,MAAM,aAAa,CAAC;AACpE,OAAO,EAAE,iBAAiB,EAAE,OAAO,EAAE,SAAS,EAAE,cAAc,EAAU,sBAAsB,EAAE,MAAM,aAAa,CAAC;AAEpH,OAAO,EACH,mBAAmB,EACnB,aAAa,EACb,aAAa,EACb,QAAQ,EACR,gBAAgB,EAChB,SAAS,EACT,WAAW,EAEX,QAAQ,EACR,eAAe,EAEf,SAAS,EACT,OAAO,EAUP,iBAAiB,EAEjB,cAAc,EACd,sBAAsB,EACzB,CAAC"}
--- a/packages/abi/lib.esm/interface.d.ts
+++ b/packages/abi/lib.esm/interface.d.ts
@@ -3,7 +3,7 @@ import { BytesLike } from "@ethersproject/bytes";
 import { Description } from "@ethersproject/properties";
 import { AbiCoder } from "./abi-coder";
 import { checkResultErrors, Result } from "./coders/abstract-coder";
-import { ConstructorFragment, EventFragment, Fragment, FunctionFragment, JsonFragment, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, Fragment, FunctionFragment, JsonFragment, ParamType } from "./fragments";
 export { checkResultErrors, Result };
 export declare class LogDescription extends Description<LogDescription> {
    readonly eventFragment: EventFragment;
@@ -28,7 +28,7 @@ export declare class Indexed extends Description<Indexed> {
 export declare class Interface {
    readonly fragments: ReadonlyArray<Fragment>;
    readonly errors: {
-        [name: string]: any;
+        [name: string]: ErrorFragment;
    };
    readonly events: {
        [name: string]: EventFragment;
@@ -46,10 +46,11 @@ export declare class Interface {
    format(format?: string): string | Array<string>;
    static getAbiCoder(): AbiCoder;
    static getAddress(address: string): string;
-    static getSighash(functionFragment: FunctionFragment): string;
+    static getSighash(fragment: ErrorFragment | FunctionFragment): string;
    static getEventTopic(eventFragment: EventFragment): string;
    getFunction(nameOrSignatureOrSighash: string): FunctionFragment;
    getEvent(nameOrSignatureOrTopic: string): EventFragment;
+    getError(nameOrSignatureOrSighash: string): ErrorFragment;
    getSighash(functionFragment: FunctionFragment | string): string;
    getEventTopic(eventFragment: EventFragment | string): string;
    _decodeParams(params: ReadonlyArray<ParamType>, data: BytesLike): Result;
--- a/packages/abi/lib.esm/interface.d.ts.map
+++ b/packages/abi/lib.esm/interface.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"interface.d.ts","sourceRoot":"","sources":["../src.ts/interface.ts"],"names":[],"mappings":"AAGA,OAAO,EAAE,SAAS,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACnE,OAAO,EAAY,SAAS,EAA0D,MAAM,sBAAsB,CAAC;AAGnH,OAAO,EAAkB,WAAW,EAAa,MAAM,2BAA2B,CAAC;AAEnF,OAAO,EAAE,QAAQ,EAAmB,MAAM,aAAa,CAAC;AACxD,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,MAAM,yBAAyB,CAAC;AACpE,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAe,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AAMnI,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,CAAC;AAErC,qBAAa,cAAe,SAAQ,WAAW,CAAC,cAAc,CAAC;IAC3D,QAAQ,CAAC,aAAa,EAAE,aAAa,CAAC;IACtC,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,KAAK,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAA;CACxB;AAED,qBAAa,sBAAuB,SAAQ,WAAW,CAAC,sBAAsB,CAAC;IAC3E,QAAQ,CAAC,gBAAgB,EAAE,gBAAgB,CAAC;IAC5C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,OAAO,EAAE,MAAM,CAAC;IACzB,QAAQ,CAAC,KAAK,EAAE,SAAS,CAAC;CAC7B;AAED,qBAAa,OAAQ,SAAQ,WAAW,CAAC,OAAO,CAAC;IAC7C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,UAAU,EAAE,OAAO,CAAC;IAE7B,MAAM,CAAC,SAAS,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,OAAO;CAGjD;AAqBD,qBAAa,SAAS;IAClB,QAAQ,CAAC,SAAS,EAAE,aAAa,CAAC,QAAQ,CAAC,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;KAAE,CAAC;IAC3C,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,aAAa,CAAA;KAAE,CAAC;IACrD,QAAQ,CAAC,SAAS,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,gBAAgB,CAAA;KAAE,CAAC;IAC3D,QAAQ,CAAC,OAAO,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;KAAE,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE,mBAAmB,CAAC;IAErC,QAAQ,CAAC,SAAS,EAAE,QAAQ,CAAC;IAE7B,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,SAAS,EAAE,MAAM,GAAG,aAAa,CAAC,QAAQ,GAAG,YAAY,GAAG,MAAM,CAAC;IAkE/E,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC;IAiB/C,MAAM,CAAC,WAAW,IAAI,QAAQ;IAI9B,MAAM,CAAC,UAAU,CAAC,OAAO,EAAE,MAAM,GAAG,MAAM;IAI1C,MAAM,CAAC,UAAU,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM;IAI7D,MAAM,CAAC,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM;IAK1D,WAAW,CAAC,wBAAwB,EAAE,MAAM,GAAG,gBAAgB;IAgC/D,QAAQ,CAAC,sBAAsB,EAAE,MAAM,GAAG,aAAa;IAiCvD,UAAU,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,GAAG,MAAM;IAS/D,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,GAAG,MAAM;IAS5D,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAIxE,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAInF,YAAY,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAKjD,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAexF,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAYpG,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAiC1F,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAStG,kBAAkB,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,KAAK,CAAC,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC,CAAC;IAyD3G,cAAc,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAA;KAAE;IA4CjH,cAAc,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,MAAM,CAAC,GAAG,MAAM;IA0F9G,gBAAgB,CAAC,EAAE,EAAE;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,KAAK,CAAC,EAAE,YAAY,CAAA;KAAE,GAAG,sBAAsB;IAiBpF,QAAQ,CAAC,GAAG,EAAE;QAAE,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAC;QAAC,IAAI,EAAE,MAAM,CAAA;KAAC,GAAG,cAAc;IAgCrE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD"}
+{"version":3,"file":"interface.d.ts","sourceRoot":"","sources":["../src.ts/interface.ts"],"names":[],"mappings":"AAGA,OAAO,EAAE,SAAS,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACnE,OAAO,EAAY,SAAS,EAA0D,MAAM,sBAAsB,CAAC;AAGnH,OAAO,EAAkB,WAAW,EAAa,MAAM,2BAA2B,CAAC;AAEnF,OAAO,EAAE,QAAQ,EAAmB,MAAM,aAAa,CAAC;AACxD,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,MAAM,yBAAyB,CAAC;AACpE,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,aAAa,EAAe,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AAMlJ,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,CAAC;AAErC,qBAAa,cAAe,SAAQ,WAAW,CAAC,cAAc,CAAC;IAC3D,QAAQ,CAAC,aAAa,EAAE,aAAa,CAAC;IACtC,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,KAAK,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAA;CACxB;AAED,qBAAa,sBAAuB,SAAQ,WAAW,CAAC,sBAAsB,CAAC;IAC3E,QAAQ,CAAC,gBAAgB,EAAE,gBAAgB,CAAC;IAC5C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,OAAO,EAAE,MAAM,CAAC;IACzB,QAAQ,CAAC,KAAK,EAAE,SAAS,CAAC;CAC7B;AAED,qBAAa,OAAQ,SAAQ,WAAW,CAAC,OAAO,CAAC;IAC7C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,UAAU,EAAE,OAAO,CAAC;IAE7B,MAAM,CAAC,SAAS,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,OAAO;CAGjD;AA0BD,qBAAa,SAAS;IAClB,QAAQ,CAAC,SAAS,EAAE,aAAa,CAAC,QAAQ,CAAC,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,aAAa,CAAA;KAAE,CAAC;IACrD,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,aAAa,CAAA;KAAE,CAAC;IACrD,QAAQ,CAAC,SAAS,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,gBAAgB,CAAA;KAAE,CAAC;IAC3D,QAAQ,CAAC,OAAO,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;KAAE,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE,mBAAmB,CAAC;IAErC,QAAQ,CAAC,SAAS,EAAE,QAAQ,CAAC;IAE7B,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,SAAS,EAAE,MAAM,GAAG,aAAa,CAAC,QAAQ,GAAG,YAAY,GAAG,MAAM,CAAC;IAqE/E,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC;IAiB/C,MAAM,CAAC,WAAW,IAAI,QAAQ;IAI9B,MAAM,CAAC,UAAU,CAAC,OAAO,EAAE,MAAM,GAAG,MAAM;IAI1C,MAAM,CAAC,UAAU,CAAC,QAAQ,EAAE,aAAa,GAAG,gBAAgB,GAAG,MAAM;IAIrE,MAAM,CAAC,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM;IAK1D,WAAW,CAAC,wBAAwB,EAAE,MAAM,GAAG,gBAAgB;IAgC/D,QAAQ,CAAC,sBAAsB,EAAE,MAAM,GAAG,aAAa;IAiCvD,QAAQ,CAAC,wBAAwB,EAAE,MAAM,GAAG,aAAa;IAkCzD,UAAU,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,GAAG,MAAM;IAS/D,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,GAAG,MAAM;IAS5D,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAIxE,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAInF,YAAY,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAKjD,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAexF,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAYpG,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IA+C1F,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAStG,kBAAkB,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,KAAK,CAAC,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC,CAAC;IAyD3G,cAAc,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAA;KAAE;IA4CjH,cAAc,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,MAAM,CAAC,GAAG,MAAM;IA0F9G,gBAAgB,CAAC,EAAE,EAAE;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,KAAK,CAAC,EAAE,YAAY,CAAA;KAAE,GAAG,sBAAsB;IAoBpF,QAAQ,CAAC,GAAG,EAAE;QAAE,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAC;QAAC,IAAI,EAAE,MAAM,CAAA;KAAC,GAAG,cAAc;IAgCrE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD"}
--- a/packages/abi/lib.esm/interface.js
+++ b/packages/abi/lib.esm/interface.js
@@ -21,6 +21,10 @@ export class Indexed extends Description {
        return !!(value && value._isIndexed);
    }
 }
+const BuiltinErrors = {
+    "0x08c379a0": { signature: "Error(string)", name: "Error", inputs: ["string"], reason: true },
+    "0x4e487b71": { signature: "Panic(uint256)", name: "Panic", inputs: ["uint256"] }
+};
 function wrapAccessError(property, error) {
    const wrap = new Error(`deferred error during ABI decoding triggered accessing ${property}`);
    wrap.error = error;
@@ -78,6 +82,9 @@ export class Interface {
                    //checkNames(fragment, "input", fragment.inputs);
                    bucket = this.events;
                    break;
+                case "error":
+                    bucket = this.errors;
+                    break;
                default:
                    return;
            }
@@ -118,8 +125,8 @@ export class Interface {
    static getAddress(address) {
        return getAddress(address);
    }
-    static getSighash(functionFragment) {
-        return hexDataSlice(id(functionFragment.format()), 0, 4);
+    static getSighash(fragment) {
+        return hexDataSlice(id(fragment.format()), 0, 4);
    }
    static getEventTopic(eventFragment) {
        return id(eventFragment.format());
@@ -183,6 +190,37 @@ export class Interface {
        }
        return result;
    }
+    // Find a function definition by any means necessary (unless it is ambiguous)
+    getError(nameOrSignatureOrSighash) {
+        if (isHexString(nameOrSignatureOrSighash)) {
+            const getSighash = getStatic(this.constructor, "getSighash");
+            for (const name in this.errors) {
+                const error = this.errors[name];
+                if (nameOrSignatureOrSighash === getSighash(error)) {
+                    return this.errors[name];
+                }
+            }
+            logger.throwArgumentError("no matching error", "sighash", nameOrSignatureOrSighash);
+        }
+        // It is a bare name, look up the function (will return null if ambiguous)
+        if (nameOrSignatureOrSighash.indexOf("(") === -1) {
+            const name = nameOrSignatureOrSighash.trim();
+            const matching = Object.keys(this.errors).filter((f) => (f.split("(" /* fix:) */)[0] === name));
+            if (matching.length === 0) {
+                logger.throwArgumentError("no matching error", "name", name);
+            }
+            else if (matching.length > 1) {
+                logger.throwArgumentError("multiple matching errors", "name", name);
+            }
+            return this.errors[matching[0]];
+        }
+        // Normlize the signature and lookup the function
+        const result = this.errors[FunctionFragment.fromString(nameOrSignatureOrSighash).format()];
+        if (!result) {
+            logger.throwArgumentError("no matching error", "signature", nameOrSignatureOrSighash);
+        }
+        return result;
+    }
    // Get the sighash (the bytes4 selector) used by Solidity to identify a function
    getSighash(functionFragment) {
        if (typeof (functionFragment) === "string") {
@@ -234,6 +272,8 @@ export class Interface {
        }
        let bytes = arrayify(data);
        let reason = null;
+        let errorArgs = null;
+        let errorName = null;
        let errorSignature = null;
        switch (bytes.length % this._abiCoder._getWordSize()) {
            case 0:
@@ -242,18 +282,34 @@ export class Interface {
                }
                catch (error) { }
                break;
-            case 4:
-                if (hexlify(bytes.slice(0, 4)) === "0x08c379a0") {
-                    errorSignature = "Error(string)";
-                    reason = this._abiCoder.decode(["string"], bytes.slice(4))[0];
+            case 4: {
+                const selector = hexlify(bytes.slice(0, 4));
+                const builtin = BuiltinErrors[selector];
+                if (builtin) {
+                    errorArgs = this._abiCoder.decode(builtin.inputs, bytes.slice(4));
+                    errorName = builtin.name;
+                    errorSignature = builtin.signature;
+                    if (builtin.reason) {
+                        reason = errorArgs[0];
+                    }
+                }
+                else {
+                    try {
+                        const error = this.getError(selector);
+                        errorArgs = this._abiCoder.decode(error.inputs, bytes.slice(4));
+                        errorName = error.name;
+                        errorSignature = error.format();
+                    }
+                    catch (error) {
+                        console.log(error);
+                    }
                }
                break;
+            }
        }
        return logger.throwError("call revert exception", Logger.errors.CALL_EXCEPTION, {
            method: functionFragment.format(),
-            errorSignature: errorSignature,
-            errorArgs: [reason],
-            reason: reason
+            errorArgs, errorName, errorSignature, reason
        });
    }
    // Encode the result for a function call (e.g. for eth_call)
@@ -459,6 +515,8 @@ export class Interface {
            value: BigNumber.from(tx.value || "0"),
        });
    }
+    // @TODO
+    //parseCallResult(data: BytesLike): ??
    // Given an event log, find the matching event fragment (if any) and
    // determine all its properties and values
    parseLog(log) {
--- a/packages/abi/lib.esm/interface.js.map
+++ b/packages/abi/lib.esm/interface.js.map
--- a/packages/abi/lib/_version.d.ts
+++ b/packages/abi/lib/_version.d.ts
@@ -1,2 +1,2 @@
-export declare const version = "abi/5.1.0";
+export declare const version = "abi/5.3.0";
 //# sourceMappingURL=_version.d.ts.map
--- a/packages/abi/lib/_version.js
+++ b/packages/abi/lib/_version.js
@@ -1,5 +1,5 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.version = void 0;
-exports.version = "abi/5.1.0";
+exports.version = "abi/5.3.0";
 //# sourceMappingURL=_version.js.map
--- a/packages/abi/lib/coders/array.d.ts.map
+++ b/packages/abi/lib/coders/array.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"array.d.ts","sourceRoot":"","sources":["../../src.ts/coders/array.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,kBAAkB,CAAC;AAGjE,wBAAgB,IAAI,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,aAAa,CAAC,KAAK,CAAC,EAAE,MAAM,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;CAAE,GAAG,MAAM,CAuEzH;AAED,wBAAgB,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,KAAK,CAAC,KAAK,CAAC,GAAG,MAAM,CAiFnE;AAGD,qBAAa,UAAW,SAAQ,KAAK;IACjC,QAAQ,CAAC,KAAK,EAAE,KAAK,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;gBAEZ,KAAK,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM;IAS3D,YAAY,IAAI,KAAK,CAAC,GAAG,CAAC;IAW1B,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,KAAK,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG,MAAM;IAoBjD,MAAM,CAAC,MAAM,EAAE,MAAM,GAAG,GAAG;CAW9B"}
+{"version":3,"file":"array.d.ts","sourceRoot":"","sources":["../../src.ts/coders/array.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM,kBAAkB,CAAC;AAGjE,wBAAgB,IAAI,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,aAAa,CAAC,KAAK,CAAC,EAAE,MAAM,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;CAAE,GAAG,MAAM,CAuEzH;AAED,wBAAgB,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,MAAM,EAAE,KAAK,CAAC,KAAK,CAAC,GAAG,MAAM,CAiFnE;AAGD,qBAAa,UAAW,SAAQ,KAAK;IACjC,QAAQ,CAAC,KAAK,EAAE,KAAK,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;gBAEZ,KAAK,EAAE,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM;IAS3D,YAAY,IAAI,KAAK,CAAC,GAAG,CAAC;IAW1B,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,KAAK,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG,MAAM;IAoBjD,MAAM,CAAC,MAAM,EAAE,MAAM,GAAG,GAAG;CAsB9B"}
--- a/packages/abi/lib/coders/array.js
+++ b/packages/abi/lib/coders/array.js
@@ -210,6 +210,17 @@ var ArrayCoder = /** @class */ (function (_super) {
        var count = this.length;
        if (count === -1) {
            count = reader.readValue().toNumber();
+            // Check that there is *roughly* enough data to ensure
+            // stray random data is not being read as a length. Each
+            // slot requires at least 32 bytes for their value (or 32
+            // bytes as a link to the data). This could use a much
+            // tighter bound, but we are erroring on the side of safety.
+            if (count * 32 > reader._data.length) {
+                logger.throwError("insufficient data length", logger_1.Logger.errors.BUFFER_OVERRUN, {
+                    length: reader._data.length,
+                    count: count
+                });
+            }
        }
        var coders = [];
        for (var i = 0; i < count; i++) {
--- a/packages/abi/lib/coders/array.js.map
+++ b/packages/abi/lib/coders/array.js.map
--- a/packages/abi/lib/fragments.d.ts
+++ b/packages/abi/lib/fragments.d.ts
@@ -74,4 +74,11 @@ export declare class FunctionFragment extends ConstructorFragment {
    static fromString(value: string): FunctionFragment;
    static isFunctionFragment(value: any): value is FunctionFragment;
 }
+export declare class ErrorFragment extends Fragment {
+    format(format?: string): string;
+    static from(value: ErrorFragment | JsonFragment | string): ErrorFragment;
+    static fromObject(value: ErrorFragment | JsonFragment): ErrorFragment;
+    static fromString(value: string): ErrorFragment;
+    static isErrorFragment(value: any): value is ErrorFragment;
+}
 //# sourceMappingURL=fragments.d.ts.map
--- a/packages/abi/lib/fragments.d.ts.map
+++ b/packages/abi/lib/fragments.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"fragments.d.ts","sourceRoot":"","sources":["../src.ts/fragments.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,SAAS,EAAE,MAAM,0BAA0B,CAAC;AAOrD,MAAM,WAAW,gBAAgB;IAC7B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,UAAU,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;CACzD;AAED,MAAM,WAAW,YAAY;IACzB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IAEvB,QAAQ,CAAC,SAAS,CAAC,EAAE,OAAO,CAAC;IAE7B,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,QAAQ,CAAC,EAAE,OAAO,CAAC;IAC5B,QAAQ,CAAC,eAAe,CAAC,EAAE,MAAM,CAAC;IAElC,QAAQ,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAClD,QAAQ,CAAC,OAAO,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAEnD,QAAQ,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC;CACzB;AA4MD,eAAO,MAAM,WAAW,EAAE;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,MAAM,CAAA;CAYlD,CAAC;AAIH,qBAAa,SAAS;IAGlB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,QAAQ,EAAE,MAAM,CAAC;IAG1B,QAAQ,CAAC,OAAO,EAAE,OAAO,CAAC;IAI1B,QAAQ,CAAC,UAAU,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAKtC,QAAQ,CAAC,WAAW,EAAE,MAAM,CAAC;IAC7B,QAAQ,CAAC,aAAa,EAAE,SAAS,CAAC;IAElC,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAiC9C,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IA+C/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB,GAAG,SAAS,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAO5F,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,SAAS,GAAG,SAAS;IAWjE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAanE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD;AAcD,8BAAsB,QAAQ;IAE1B,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAElC,QAAQ,CAAC,WAAW,EAAE,OAAO,CAAC;gBAElB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAa9C,QAAQ,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAExC,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,MAAM,GAAG,QAAQ;IAU9D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,QAAQ;IAmB3D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,QAAQ;IAiB1C,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,QAAQ;CAGnD;AAMD,qBAAa,aAAc,SAAQ,QAAQ;IACvC,QAAQ,CAAC,SAAS,EAAE,OAAO,CAAC;IAE5B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAkC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,MAAM,GAAG,aAAa;IAOxE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,YAAY,GAAG,aAAa,GAAG,aAAa;IAiBrE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,aAAa;IA4B/C,MAAM,CAAC,eAAe,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,aAAa;CAG7D;AAqID,qBAAa,mBAAoB,SAAQ,QAAQ;IAC7C,eAAe,EAAE,MAAM,CAAC;IACxB,OAAO,EAAE,OAAO,CAAC;IACjB,GAAG,CAAC,EAAE,SAAS,CAAC;IAEhB,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAiC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,MAAM,GAAG,mBAAmB;IAOpF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,mBAAmB;IAwBjF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,mBAAmB;IAiBrD,MAAM,CAAC,qBAAqB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,mBAAmB;CAGzE;AAOD,qBAAa,gBAAiB,SAAQ,mBAAmB;IACrD,QAAQ,EAAE,OAAO,CAAC;IAClB,OAAO,CAAC,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAE3B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAoD/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,MAAM,GAAG,gBAAgB;IAO9E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,gBAAgB;IAuB3E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB;IAmClD,MAAM,CAAC,kBAAkB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,gBAAgB;CAGnE"}
+{"version":3,"file":"fragments.d.ts","sourceRoot":"","sources":["../src.ts/fragments.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,SAAS,EAAE,MAAM,0BAA0B,CAAC;AAOrD,MAAM,WAAW,gBAAgB;IAC7B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,UAAU,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;CACzD;AAED,MAAM,WAAW,YAAY;IACzB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC;IAEvB,QAAQ,CAAC,SAAS,CAAC,EAAE,OAAO,CAAC;IAE7B,QAAQ,CAAC,OAAO,CAAC,EAAE,OAAO,CAAC;IAC3B,QAAQ,CAAC,QAAQ,CAAC,EAAE,OAAO,CAAC;IAC5B,QAAQ,CAAC,eAAe,CAAC,EAAE,MAAM,CAAC;IAElC,QAAQ,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAClD,QAAQ,CAAC,OAAO,CAAC,EAAE,aAAa,CAAC,gBAAgB,CAAC,CAAC;IAEnD,QAAQ,CAAC,GAAG,CAAC,EAAE,MAAM,CAAC;CACzB;AA4MD,eAAO,MAAM,WAAW,EAAE;IAAE,CAAE,IAAI,EAAE,MAAM,GAAI,MAAM,CAAA;CAYlD,CAAC;AAIH,qBAAa,SAAS;IAGlB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IAGtB,QAAQ,CAAC,QAAQ,EAAE,MAAM,CAAC;IAG1B,QAAQ,CAAC,OAAO,EAAE,OAAO,CAAC;IAI1B,QAAQ,CAAC,UAAU,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAKtC,QAAQ,CAAC,WAAW,EAAE,MAAM,CAAC;IAC7B,QAAQ,CAAC,aAAa,EAAE,SAAS,CAAC;IAElC,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAiC9C,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IA+C/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB,GAAG,SAAS,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAO5F,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,SAAS,GAAG,SAAS;IAWjE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,EAAE,YAAY,CAAC,EAAE,OAAO,GAAG,SAAS;IAanE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD;AAcD,8BAAsB,QAAQ;IAE1B,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,MAAM,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAElC,QAAQ,CAAC,WAAW,EAAE,OAAO,CAAC;gBAElB,gBAAgB,EAAE,GAAG,EAAE,MAAM,EAAE,GAAG;IAa9C,QAAQ,CAAC,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAExC,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,MAAM,GAAG,QAAQ;IAU9D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,QAAQ,GAAG,YAAY,GAAG,QAAQ;IAqB3D,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,QAAQ;IAmB1C,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,QAAQ;CAGnD;AAMD,qBAAa,aAAc,SAAQ,QAAQ;IACvC,QAAQ,CAAC,SAAS,EAAE,OAAO,CAAC;IAE5B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAkC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,MAAM,GAAG,aAAa;IAOxE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,YAAY,GAAG,aAAa,GAAG,aAAa;IAiBrE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,aAAa;IA4B/C,MAAM,CAAC,eAAe,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,aAAa;CAG7D;AAqID,qBAAa,mBAAoB,SAAQ,QAAQ;IAC7C,eAAe,EAAE,MAAM,CAAC;IACxB,OAAO,EAAE,OAAO,CAAC;IACjB,GAAG,CAAC,EAAE,SAAS,CAAC;IAEhB,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAiC/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,MAAM,GAAG,mBAAmB;IAOpF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,mBAAmB,GAAG,YAAY,GAAG,mBAAmB;IAwBjF,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,mBAAmB;IAiBrD,MAAM,CAAC,qBAAqB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,mBAAmB;CAGzE;AAOD,qBAAa,gBAAiB,SAAQ,mBAAmB;IACrD,QAAQ,EAAE,OAAO,CAAC;IAClB,OAAO,CAAC,EAAE,KAAK,CAAC,SAAS,CAAC,CAAC;IAE3B,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IAoD/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,MAAM,GAAG,gBAAgB;IAO9E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,gBAAgB,GAAG,YAAY,GAAG,gBAAgB;IAuB3E,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,gBAAgB;IAmClD,MAAM,CAAC,kBAAkB,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,gBAAgB;CAGnE;AAaD,qBAAa,aAAc,SAAQ,QAAQ;IAEvC,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM;IA2B/B,MAAM,CAAC,IAAI,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,MAAM,GAAG,aAAa;IAOxE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,aAAa,GAAG,YAAY,GAAG,aAAa;IAgBrE,MAAM,CAAC,UAAU,CAAC,KAAK,EAAE,MAAM,GAAG,aAAa;IAgB/C,MAAM,CAAC,eAAe,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,aAAa;CAG7D"}
--- a/packages/abi/lib/fragments.js
+++ b/packages/abi/lib/fragments.js
@@ -15,7 +15,7 @@ var __extends = (this && this.__extends) || (function () {
    };
 })();
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.FunctionFragment = exports.ConstructorFragment = exports.EventFragment = exports.Fragment = exports.ParamType = exports.FormatTypes = void 0;
+exports.ErrorFragment = exports.FunctionFragment = exports.ConstructorFragment = exports.EventFragment = exports.Fragment = exports.ParamType = exports.FormatTypes = void 0;
 var bignumber_1 = require("@ethersproject/bignumber");
 var properties_1 = require("@ethersproject/properties");
 var logger_1 = require("@ethersproject/logger");
@@ -373,6 +373,8 @@ var Fragment = /** @class */ (function () {
                return EventFragment.fromObject(value);
            case "constructor":
                return ConstructorFragment.fromObject(value);
+            case "error":
+                return ErrorFragment.fromObject(value);
            case "fallback":
            case "receive":
                // @TODO: Something? Maybe return a FunctionFragment? A custom DefaultFunctionFragment?
@@ -394,6 +396,9 @@ var Fragment = /** @class */ (function () {
        else if (value.split("(")[0].trim() === "constructor") {
            return ConstructorFragment.fromString(value.trim());
        }
+        else if (value.split(" ")[0] === "error") {
+            return ErrorFragment.fromString(value.substring(5).trim());
+        }
        return logger.throwArgumentError("unsupported fragment", "value", value);
    };
    Fragment.isFragment = function (value) {
@@ -769,10 +774,80 @@ var FunctionFragment = /** @class */ (function (_super) {
    return FunctionFragment;
 }(ConstructorFragment));
 exports.FunctionFragment = FunctionFragment;
-//export class ErrorFragment extends Fragment {
-//}
 //export class StructFragment extends Fragment {
 //}
+function checkForbidden(fragment) {
+    var sig = fragment.format();
+    if (sig === "Error(string)" || sig === "Panic(uint256)") {
+        logger.throwArgumentError("cannot specify user defined " + sig + " error", "fragment", fragment);
+    }
+    return fragment;
+}
+var ErrorFragment = /** @class */ (function (_super) {
+    __extends(ErrorFragment, _super);
+    function ErrorFragment() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    ErrorFragment.prototype.format = function (format) {
+        if (!format) {
+            format = exports.FormatTypes.sighash;
+        }
+        if (!exports.FormatTypes[format]) {
+            logger.throwArgumentError("invalid format type", "format", format);
+        }
+        if (format === exports.FormatTypes.json) {
+            return JSON.stringify({
+                type: "error",
+                name: this.name,
+                inputs: this.inputs.map(function (input) { return JSON.parse(input.format(format)); }),
+            });
+        }
+        var result = "";
+        if (format !== exports.FormatTypes.sighash) {
+            result += "error ";
+        }
+        result += this.name + "(" + this.inputs.map(function (input) { return input.format(format); }).join((format === exports.FormatTypes.full) ? ", " : ",") + ") ";
+        return result.trim();
+    };
+    ErrorFragment.from = function (value) {
+        if (typeof (value) === "string") {
+            return ErrorFragment.fromString(value);
+        }
+        return ErrorFragment.fromObject(value);
+    };
+    ErrorFragment.fromObject = function (value) {
+        if (ErrorFragment.isErrorFragment(value)) {
+            return value;
+        }
+        if (value.type !== "error") {
+            logger.throwArgumentError("invalid error object", "value", value);
+        }
+        var params = {
+            type: value.type,
+            name: verifyIdentifier(value.name),
+            inputs: (value.inputs ? value.inputs.map(ParamType.fromObject) : [])
+        };
+        return checkForbidden(new ErrorFragment(_constructorGuard, params));
+    };
+    ErrorFragment.fromString = function (value) {
+        var params = { type: "error" };
+        var parens = value.match(regexParen);
+        if (!parens) {
+            logger.throwArgumentError("invalid error signature", "value", value);
+        }
+        params.name = parens[1].trim();
+        if (params.name) {
+            verifyIdentifier(params.name);
+        }
+        params.inputs = parseParams(parens[2], false);
+        return checkForbidden(ErrorFragment.fromObject(params));
+    };
+    ErrorFragment.isErrorFragment = function (value) {
+        return (value && value._isFragment && value.type === "error");
+    };
+    return ErrorFragment;
+}(Fragment));
+exports.ErrorFragment = ErrorFragment;
 function verifyType(type) {
    // These need to be transformed to their full description
    if (type.match(/^uint($|[^1-9])/)) {
--- a/packages/abi/lib/fragments.js.map
+++ b/packages/abi/lib/fragments.js.map
--- a/packages/abi/lib/index.d.ts
+++ b/packages/abi/lib/index.d.ts
@@ -1,5 +1,5 @@
-import { ConstructorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, JsonFragmentType, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, JsonFragmentType, ParamType } from "./fragments";
 import { AbiCoder, CoerceFunc, defaultAbiCoder } from "./abi-coder";
 import { checkResultErrors, Indexed, Interface, LogDescription, Result, TransactionDescription } from "./interface";
-export { ConstructorFragment, EventFragment, Fragment, FunctionFragment, ParamType, FormatTypes, AbiCoder, defaultAbiCoder, Interface, Indexed, CoerceFunc, JsonFragment, JsonFragmentType, Result, checkResultErrors, LogDescription, TransactionDescription };
+export { ConstructorFragment, ErrorFragment, EventFragment, Fragment, FunctionFragment, ParamType, FormatTypes, AbiCoder, defaultAbiCoder, Interface, Indexed, CoerceFunc, JsonFragment, JsonFragmentType, Result, checkResultErrors, LogDescription, TransactionDescription };
 //# sourceMappingURL=index.d.ts.map
--- a/packages/abi/lib/index.d.ts.map
+++ b/packages/abi/lib/index.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,WAAW,EAAE,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,gBAAgB,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AACrJ,OAAO,EAAE,QAAQ,EAAE,UAAU,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AACpE,OAAO,EAAE,iBAAiB,EAAE,OAAO,EAAE,SAAS,EAAE,cAAc,EAAE,MAAM,EAAE,sBAAsB,EAAE,MAAM,aAAa,CAAC;AAEpH,OAAO,EACH,mBAAmB,EACnB,aAAa,EACb,QAAQ,EACR,gBAAgB,EAChB,SAAS,EACT,WAAW,EAEX,QAAQ,EACR,eAAe,EAEf,SAAS,EACT,OAAO,EAKP,UAAU,EACV,YAAY,EACZ,gBAAgB,EAEhB,MAAM,EACN,iBAAiB,EAEjB,cAAc,EACd,sBAAsB,EACzB,CAAC"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAEA,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,aAAa,EAAE,WAAW,EAAE,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,gBAAgB,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AACpK,OAAO,EAAE,QAAQ,EAAE,UAAU,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AACpE,OAAO,EAAE,iBAAiB,EAAE,OAAO,EAAE,SAAS,EAAE,cAAc,EAAE,MAAM,EAAE,sBAAsB,EAAE,MAAM,aAAa,CAAC;AAEpH,OAAO,EACH,mBAAmB,EACnB,aAAa,EACb,aAAa,EACb,QAAQ,EACR,gBAAgB,EAChB,SAAS,EACT,WAAW,EAEX,QAAQ,EACR,eAAe,EAEf,SAAS,EACT,OAAO,EAKP,UAAU,EACV,YAAY,EACZ,gBAAgB,EAEhB,MAAM,EACN,iBAAiB,EAEjB,cAAc,EACd,sBAAsB,EACzB,CAAC"}
--- a/packages/abi/lib/index.js
+++ b/packages/abi/lib/index.js
@@ -1,8 +1,9 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.TransactionDescription = exports.LogDescription = exports.checkResultErrors = exports.Indexed = exports.Interface = exports.defaultAbiCoder = exports.AbiCoder = exports.FormatTypes = exports.ParamType = exports.FunctionFragment = exports.Fragment = exports.EventFragment = exports.ConstructorFragment = void 0;
+exports.TransactionDescription = exports.LogDescription = exports.checkResultErrors = exports.Indexed = exports.Interface = exports.defaultAbiCoder = exports.AbiCoder = exports.FormatTypes = exports.ParamType = exports.FunctionFragment = exports.Fragment = exports.EventFragment = exports.ErrorFragment = exports.ConstructorFragment = void 0;
 var fragments_1 = require("./fragments");
 Object.defineProperty(exports, "ConstructorFragment", { enumerable: true, get: function () { return fragments_1.ConstructorFragment; } });
+Object.defineProperty(exports, "ErrorFragment", { enumerable: true, get: function () { return fragments_1.ErrorFragment; } });
 Object.defineProperty(exports, "EventFragment", { enumerable: true, get: function () { return fragments_1.EventFragment; } });
 Object.defineProperty(exports, "FormatTypes", { enumerable: true, get: function () { return fragments_1.FormatTypes; } });
 Object.defineProperty(exports, "Fragment", { enumerable: true, get: function () { return fragments_1.Fragment; } });
--- a/packages/abi/lib/index.js.map
+++ b/packages/abi/lib/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAAA,YAAY,CAAC;;;AAEb,yCAAqJ;AAKjJ,oGALK,+BAAmB,OAKL;AACnB,8FAN0B,yBAAa,OAM1B;AAIb,4FAVyC,uBAAW,OAUzC;AAHX,yFAPsD,oBAAQ,OAOtD;AACR,iGARgE,4BAAgB,OAQhE;AAChB,0FATkH,qBAAS,OASlH;AARb,yCAAoE;AAWhE,yFAXK,oBAAQ,OAWL;AACR,gGAZ2B,2BAAe,OAY3B;AAXnB,yCAAoH;AAwBhH,kGAxBK,6BAAiB,OAwBL;AAVjB,wFAdwB,mBAAO,OAcxB;AADP,0FAbiC,qBAAS,OAajC;AAaT,+FA1B4C,0BAAc,OA0B5C;AACd,uGA3BoE,kCAAsB,OA2BpE"}
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src.ts/index.ts"],"names":[],"mappings":"AAAA,YAAY,CAAC;;;AAEb,yCAAoK;AAKhK,oGALK,+BAAmB,OAKL;AACnB,8FAN0B,yBAAa,OAM1B;AACb,8FAPyC,yBAAa,OAOzC;AAIb,4FAXwD,uBAAW,OAWxD;AAHX,yFARqE,oBAAQ,OAQrE;AACR,iGAT+E,4BAAgB,OAS/E;AAChB,0FAViI,qBAAS,OAUjI;AATb,yCAAoE;AAYhE,yFAZK,oBAAQ,OAYL;AACR,gGAb2B,2BAAe,OAa3B;AAZnB,yCAAoH;AAyBhH,kGAzBK,6BAAiB,OAyBL;AAVjB,wFAfwB,mBAAO,OAexB;AADP,0FAdiC,qBAAS,OAcjC;AAaT,+FA3B4C,0BAAc,OA2B5C;AACd,uGA5BoE,kCAAsB,OA4BpE"}
--- a/packages/abi/lib/interface.d.ts
+++ b/packages/abi/lib/interface.d.ts
@@ -3,7 +3,7 @@ import { BytesLike } from "@ethersproject/bytes";
 import { Description } from "@ethersproject/properties";
 import { AbiCoder } from "./abi-coder";
 import { checkResultErrors, Result } from "./coders/abstract-coder";
-import { ConstructorFragment, EventFragment, Fragment, FunctionFragment, JsonFragment, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, Fragment, FunctionFragment, JsonFragment, ParamType } from "./fragments";
 export { checkResultErrors, Result };
 export declare class LogDescription extends Description<LogDescription> {
    readonly eventFragment: EventFragment;
@@ -28,7 +28,7 @@ export declare class Indexed extends Description<Indexed> {
 export declare class Interface {
    readonly fragments: ReadonlyArray<Fragment>;
    readonly errors: {
-        [name: string]: any;
+        [name: string]: ErrorFragment;
    };
    readonly events: {
        [name: string]: EventFragment;
@@ -46,10 +46,11 @@ export declare class Interface {
    format(format?: string): string | Array<string>;
    static getAbiCoder(): AbiCoder;
    static getAddress(address: string): string;
-    static getSighash(functionFragment: FunctionFragment): string;
+    static getSighash(fragment: ErrorFragment | FunctionFragment): string;
    static getEventTopic(eventFragment: EventFragment): string;
    getFunction(nameOrSignatureOrSighash: string): FunctionFragment;
    getEvent(nameOrSignatureOrTopic: string): EventFragment;
+    getError(nameOrSignatureOrSighash: string): ErrorFragment;
    getSighash(functionFragment: FunctionFragment | string): string;
    getEventTopic(eventFragment: EventFragment | string): string;
    _decodeParams(params: ReadonlyArray<ParamType>, data: BytesLike): Result;
--- a/packages/abi/lib/interface.d.ts.map
+++ b/packages/abi/lib/interface.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"interface.d.ts","sourceRoot":"","sources":["../src.ts/interface.ts"],"names":[],"mappings":"AAGA,OAAO,EAAE,SAAS,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACnE,OAAO,EAAY,SAAS,EAA0D,MAAM,sBAAsB,CAAC;AAGnH,OAAO,EAAkB,WAAW,EAAa,MAAM,2BAA2B,CAAC;AAEnF,OAAO,EAAE,QAAQ,EAAmB,MAAM,aAAa,CAAC;AACxD,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,MAAM,yBAAyB,CAAC;AACpE,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAe,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AAMnI,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,CAAC;AAErC,qBAAa,cAAe,SAAQ,WAAW,CAAC,cAAc,CAAC;IAC3D,QAAQ,CAAC,aAAa,EAAE,aAAa,CAAC;IACtC,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,KAAK,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAA;CACxB;AAED,qBAAa,sBAAuB,SAAQ,WAAW,CAAC,sBAAsB,CAAC;IAC3E,QAAQ,CAAC,gBAAgB,EAAE,gBAAgB,CAAC;IAC5C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,OAAO,EAAE,MAAM,CAAC;IACzB,QAAQ,CAAC,KAAK,EAAE,SAAS,CAAC;CAC7B;AAED,qBAAa,OAAQ,SAAQ,WAAW,CAAC,OAAO,CAAC;IAC7C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,UAAU,EAAE,OAAO,CAAC;IAE7B,MAAM,CAAC,SAAS,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,OAAO;CAGjD;AAqBD,qBAAa,SAAS;IAClB,QAAQ,CAAC,SAAS,EAAE,aAAa,CAAC,QAAQ,CAAC,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;KAAE,CAAC;IAC3C,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,aAAa,CAAA;KAAE,CAAC;IACrD,QAAQ,CAAC,SAAS,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,gBAAgB,CAAA;KAAE,CAAC;IAC3D,QAAQ,CAAC,OAAO,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;KAAE,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE,mBAAmB,CAAC;IAErC,QAAQ,CAAC,SAAS,EAAE,QAAQ,CAAC;IAE7B,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,SAAS,EAAE,MAAM,GAAG,aAAa,CAAC,QAAQ,GAAG,YAAY,GAAG,MAAM,CAAC;IAkE/E,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC;IAiB/C,MAAM,CAAC,WAAW,IAAI,QAAQ;IAI9B,MAAM,CAAC,UAAU,CAAC,OAAO,EAAE,MAAM,GAAG,MAAM;IAI1C,MAAM,CAAC,UAAU,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM;IAI7D,MAAM,CAAC,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM;IAK1D,WAAW,CAAC,wBAAwB,EAAE,MAAM,GAAG,gBAAgB;IAgC/D,QAAQ,CAAC,sBAAsB,EAAE,MAAM,GAAG,aAAa;IAiCvD,UAAU,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,GAAG,MAAM;IAS/D,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,GAAG,MAAM;IAS5D,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAIxE,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAInF,YAAY,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAKjD,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAexF,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAYpG,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAiC1F,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAStG,kBAAkB,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,KAAK,CAAC,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC,CAAC;IAyD3G,cAAc,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAA;KAAE;IA4CjH,cAAc,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,MAAM,CAAC,GAAG,MAAM;IA0F9G,gBAAgB,CAAC,EAAE,EAAE;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,KAAK,CAAC,EAAE,YAAY,CAAA;KAAE,GAAG,sBAAsB;IAiBpF,QAAQ,CAAC,GAAG,EAAE;QAAE,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAC;QAAC,IAAI,EAAE,MAAM,CAAA;KAAC,GAAG,cAAc;IAgCrE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD"}
+{"version":3,"file":"interface.d.ts","sourceRoot":"","sources":["../src.ts/interface.ts"],"names":[],"mappings":"AAGA,OAAO,EAAE,SAAS,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACnE,OAAO,EAAY,SAAS,EAA0D,MAAM,sBAAsB,CAAC;AAGnH,OAAO,EAAkB,WAAW,EAAa,MAAM,2BAA2B,CAAC;AAEnF,OAAO,EAAE,QAAQ,EAAmB,MAAM,aAAa,CAAC;AACxD,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,MAAM,yBAAyB,CAAC;AACpE,OAAO,EAAE,mBAAmB,EAAE,aAAa,EAAE,aAAa,EAAe,QAAQ,EAAE,gBAAgB,EAAE,YAAY,EAAE,SAAS,EAAE,MAAM,aAAa,CAAC;AAMlJ,OAAO,EAAE,iBAAiB,EAAE,MAAM,EAAE,CAAC;AAErC,qBAAa,cAAe,SAAQ,WAAW,CAAC,cAAc,CAAC;IAC3D,QAAQ,CAAC,aAAa,EAAE,aAAa,CAAC;IACtC,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,KAAK,EAAE,MAAM,CAAC;IACvB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAA;CACxB;AAED,qBAAa,sBAAuB,SAAQ,WAAW,CAAC,sBAAsB,CAAC;IAC3E,QAAQ,CAAC,gBAAgB,EAAE,gBAAgB,CAAC;IAC5C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;IAC3B,QAAQ,CAAC,OAAO,EAAE,MAAM,CAAC;IACzB,QAAQ,CAAC,KAAK,EAAE,SAAS,CAAC;CAC7B;AAED,qBAAa,OAAQ,SAAQ,WAAW,CAAC,OAAO,CAAC;IAC7C,QAAQ,CAAC,IAAI,EAAE,MAAM,CAAC;IACtB,QAAQ,CAAC,UAAU,EAAE,OAAO,CAAC;IAE7B,MAAM,CAAC,SAAS,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,OAAO;CAGjD;AA0BD,qBAAa,SAAS;IAClB,QAAQ,CAAC,SAAS,EAAE,aAAa,CAAC,QAAQ,CAAC,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,aAAa,CAAA;KAAE,CAAC;IACrD,QAAQ,CAAC,MAAM,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,aAAa,CAAA;KAAE,CAAC;IACrD,QAAQ,CAAC,SAAS,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,gBAAgB,CAAA;KAAE,CAAC;IAC3D,QAAQ,CAAC,OAAO,EAAE;QAAE,CAAE,IAAI,EAAE,MAAM,GAAI,GAAG,CAAA;KAAE,CAAC;IAE5C,QAAQ,CAAC,MAAM,EAAE,mBAAmB,CAAC;IAErC,QAAQ,CAAC,SAAS,EAAE,QAAQ,CAAC;IAE7B,QAAQ,CAAC,YAAY,EAAE,OAAO,CAAC;gBAEnB,SAAS,EAAE,MAAM,GAAG,aAAa,CAAC,QAAQ,GAAG,YAAY,GAAG,MAAM,CAAC;IAqE/E,MAAM,CAAC,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC;IAiB/C,MAAM,CAAC,WAAW,IAAI,QAAQ;IAI9B,MAAM,CAAC,UAAU,CAAC,OAAO,EAAE,MAAM,GAAG,MAAM;IAI1C,MAAM,CAAC,UAAU,CAAC,QAAQ,EAAE,aAAa,GAAG,gBAAgB,GAAG,MAAM;IAIrE,MAAM,CAAC,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM;IAK1D,WAAW,CAAC,wBAAwB,EAAE,MAAM,GAAG,gBAAgB;IAgC/D,QAAQ,CAAC,sBAAsB,EAAE,MAAM,GAAG,aAAa;IAiCvD,QAAQ,CAAC,wBAAwB,EAAE,MAAM,GAAG,aAAa;IAkCzD,UAAU,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,GAAG,MAAM;IAS/D,aAAa,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,GAAG,MAAM;IAS5D,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAIxE,aAAa,CAAC,MAAM,EAAE,aAAa,CAAC,SAAS,CAAC,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAInF,YAAY,CAAC,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAKjD,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IAexF,kBAAkB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAYpG,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,GAAG,MAAM;IA+C1F,oBAAoB,CAAC,gBAAgB,EAAE,gBAAgB,GAAG,MAAM,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,MAAM;IAStG,kBAAkB,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG,KAAK,CAAC,MAAM,GAAG,KAAK,CAAC,MAAM,CAAC,CAAC;IAyD3G,cAAc,CAAC,aAAa,EAAE,aAAa,EAAE,MAAM,EAAE,aAAa,CAAC,GAAG,CAAC,GAAG;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAA;KAAE;IA4CjH,cAAc,CAAC,aAAa,EAAE,aAAa,GAAG,MAAM,EAAE,IAAI,EAAE,SAAS,EAAE,MAAM,CAAC,EAAE,aAAa,CAAC,MAAM,CAAC,GAAG,MAAM;IA0F9G,gBAAgB,CAAC,EAAE,EAAE;QAAE,IAAI,EAAE,MAAM,CAAC;QAAC,KAAK,CAAC,EAAE,YAAY,CAAA;KAAE,GAAG,sBAAsB;IAoBpF,QAAQ,CAAC,GAAG,EAAE;QAAE,MAAM,EAAE,KAAK,CAAC,MAAM,CAAC,CAAC;QAAC,IAAI,EAAE,MAAM,CAAA;KAAC,GAAG,cAAc;IAgCrE,MAAM,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,GAAG,KAAK,IAAI,SAAS;CAGrD"}
--- a/packages/abi/lib/interface.js
+++ b/packages/abi/lib/interface.js
@@ -56,6 +56,10 @@ var Indexed = /** @class */ (function (_super) {
    return Indexed;
 }(properties_1.Description));
 exports.Indexed = Indexed;
+var BuiltinErrors = {
+    "0x08c379a0": { signature: "Error(string)", name: "Error", inputs: ["string"], reason: true },
+    "0x4e487b71": { signature: "Panic(uint256)", name: "Panic", inputs: ["uint256"] }
+};
 function wrapAccessError(property, error) {
    var wrap = new Error("deferred error during ABI decoding triggered accessing " + property);
    wrap.error = error;
@@ -115,6 +119,9 @@ var Interface = /** @class */ (function () {
                    //checkNames(fragment, "input", fragment.inputs);
                    bucket = _this.events;
                    break;
+                case "error":
+                    bucket = _this.errors;
+                    break;
                default:
                    return;
            }
@@ -155,8 +162,8 @@ var Interface = /** @class */ (function () {
    Interface.getAddress = function (address) {
        return address_1.getAddress(address);
    };
-    Interface.getSighash = function (functionFragment) {
-        return bytes_1.hexDataSlice(hash_1.id(functionFragment.format()), 0, 4);
+    Interface.getSighash = function (fragment) {
+        return bytes_1.hexDataSlice(hash_1.id(fragment.format()), 0, 4);
    };
    Interface.getEventTopic = function (eventFragment) {
        return hash_1.id(eventFragment.format());
@@ -220,6 +227,37 @@ var Interface = /** @class */ (function () {
        }
        return result;
    };
+    // Find a function definition by any means necessary (unless it is ambiguous)
+    Interface.prototype.getError = function (nameOrSignatureOrSighash) {
+        if (bytes_1.isHexString(nameOrSignatureOrSighash)) {
+            var getSighash = properties_1.getStatic(this.constructor, "getSighash");
+            for (var name_5 in this.errors) {
+                var error = this.errors[name_5];
+                if (nameOrSignatureOrSighash === getSighash(error)) {
+                    return this.errors[name_5];
+                }
+            }
+            logger.throwArgumentError("no matching error", "sighash", nameOrSignatureOrSighash);
+        }
+        // It is a bare name, look up the function (will return null if ambiguous)
+        if (nameOrSignatureOrSighash.indexOf("(") === -1) {
+            var name_6 = nameOrSignatureOrSighash.trim();
+            var matching = Object.keys(this.errors).filter(function (f) { return (f.split("(" /* fix:) */)[0] === name_6); });
+            if (matching.length === 0) {
+                logger.throwArgumentError("no matching error", "name", name_6);
+            }
+            else if (matching.length > 1) {
+                logger.throwArgumentError("multiple matching errors", "name", name_6);
+            }
+            return this.errors[matching[0]];
+        }
+        // Normlize the signature and lookup the function
+        var result = this.errors[fragments_1.FunctionFragment.fromString(nameOrSignatureOrSighash).format()];
+        if (!result) {
+            logger.throwArgumentError("no matching error", "signature", nameOrSignatureOrSighash);
+        }
+        return result;
+    };
    // Get the sighash (the bytes4 selector) used by Solidity to identify a function
    Interface.prototype.getSighash = function (functionFragment) {
        if (typeof (functionFragment) === "string") {
@@ -271,6 +309,8 @@ var Interface = /** @class */ (function () {
        }
        var bytes = bytes_1.arrayify(data);
        var reason = null;
+        var errorArgs = null;
+        var errorName = null;
        var errorSignature = null;
        switch (bytes.length % this._abiCoder._getWordSize()) {
            case 0:
@@ -279,18 +319,34 @@ var Interface = /** @class */ (function () {
                }
                catch (error) { }
                break;
-            case 4:
-                if (bytes_1.hexlify(bytes.slice(0, 4)) === "0x08c379a0") {
-                    errorSignature = "Error(string)";
-                    reason = this._abiCoder.decode(["string"], bytes.slice(4))[0];
+            case 4: {
+                var selector = bytes_1.hexlify(bytes.slice(0, 4));
+                var builtin = BuiltinErrors[selector];
+                if (builtin) {
+                    errorArgs = this._abiCoder.decode(builtin.inputs, bytes.slice(4));
+                    errorName = builtin.name;
+                    errorSignature = builtin.signature;
+                    if (builtin.reason) {
+                        reason = errorArgs[0];
+                    }
+                }
+                else {
+                    try {
+                        var error = this.getError(selector);
+                        errorArgs = this._abiCoder.decode(error.inputs, bytes.slice(4));
+                        errorName = error.name;
+                        errorSignature = error.format();
+                    }
+                    catch (error) {
+                        console.log(error);
+                    }
                }
                break;
+            }
        }
        return logger.throwError("call revert exception", logger_1.Logger.errors.CALL_EXCEPTION, {
            method: functionFragment.format(),
-            errorSignature: errorSignature,
-            errorArgs: [reason],
-            reason: reason
+            errorArgs: errorArgs, errorName: errorName, errorSignature: errorSignature, reason: reason
        });
    };
    // Encode the result for a function call (e.g. for eth_call)
@@ -501,6 +557,8 @@ var Interface = /** @class */ (function () {
            value: bignumber_1.BigNumber.from(tx.value || "0"),
        });
    };
+    // @TODO
+    //parseCallResult(data: BytesLike): ??
    // Given an event log, find the matching event fragment (if any) and
    // determine all its properties and values
    Interface.prototype.parseLog = function (log) {
--- a/packages/abi/lib/interface.js.map
+++ b/packages/abi/lib/interface.js.map
--- a/packages/abi/package.json
+++ b/packages/abi/package.json
@@ -1,15 +1,15 @@
 {
  "author": "Richard Moore <me@ricmoo.com>",
  "dependencies": {
-    "@ethersproject/address": "^5.1.0",
-    "@ethersproject/bignumber": "^5.1.0",
-    "@ethersproject/bytes": "^5.1.0",
-    "@ethersproject/constants": "^5.1.0",
-    "@ethersproject/hash": "^5.1.0",
-    "@ethersproject/keccak256": "^5.1.0",
-    "@ethersproject/logger": "^5.1.0",
-    "@ethersproject/properties": "^5.1.0",
-    "@ethersproject/strings": "^5.1.0"
+    "@ethersproject/address": "^5.3.0",
+    "@ethersproject/bignumber": "^5.3.0",
+    "@ethersproject/bytes": "^5.3.0",
+    "@ethersproject/constants": "^5.3.0",
+    "@ethersproject/hash": "^5.3.0",
+    "@ethersproject/keccak256": "^5.3.0",
+    "@ethersproject/logger": "^5.3.0",
+    "@ethersproject/properties": "^5.3.0",
+    "@ethersproject/strings": "^5.3.0"
  },
  "description": "Utilities and Classes for parsing, formatting and managing Ethereum ABIs.",
  "ethereum": "donations.ethers.eth",
@@ -43,7 +43,7 @@
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "sideEffects": false,
-  "tarballHash": "0x1268f244b9c48541e6ac01c961ac81782d8dc8212aa3a00f570f8e4a5ebb541b",
+  "tarballHash": "0xffd3d7fde3b357efa0d4e00e3cd0984aa73e2d13e036c9df204bd172f64a83a0",
  "types": "./lib/index.d.ts",
-  "version": "5.1.0"
+  "version": "5.3.0"
 }
--- a/packages/abi/src.ts/_version.ts
+++ b/packages/abi/src.ts/_version.ts
@@ -1 +1 @@
-export const version = "abi/5.1.0";
+export const version = "abi/5.3.0";
--- a/packages/abi/src.ts/coders/array.ts
+++ b/packages/abi/src.ts/coders/array.ts
@@ -212,8 +212,19 @@ export class ArrayCoder extends Coder {
        let count = this.length;
        if (count === -1) {
            count = reader.readValue().toNumber();
-        }

+            // Check that there is *roughly* enough data to ensure
+            // stray random data is not being read as a length. Each
+            // slot requires at least 32 bytes for their value (or 32
+            // bytes as a link to the data). This could use a much
+            // tighter bound, but we are erroring on the side of safety.
+            if (count * 32 > reader._data.length) {
+                logger.throwError("insufficient data length", Logger.errors.BUFFER_OVERRUN, {
+                    length: reader._data.length,
+                    count: count
+                });
+            }
+        }
        let coders = [];
        for (let i = 0; i < count; i++) { coders.push(new AnonymousCoder(this.coder)); }

--- a/packages/abi/src.ts/fragments.ts
+++ b/packages/abi/src.ts/fragments.ts
@@ -445,6 +445,8 @@ export abstract class Fragment {
                return EventFragment.fromObject(value);
            case "constructor":
                return ConstructorFragment.fromObject(value);
+            case "error":
+                return ErrorFragment.fromObject(value);
            case "fallback":
            case "receive":
                // @TODO: Something? Maybe return a FunctionFragment? A custom DefaultFunctionFragment?
@@ -466,6 +468,8 @@ export abstract class Fragment {
            return FunctionFragment.fromString(value.substring(8).trim());
        } else if (value.split("(")[0].trim() === "constructor") {
            return ConstructorFragment.fromString(value.trim());
+        } else if (value.split(" ")[0] === "error") {
+           return ErrorFragment.fromString(value.substring(5).trim());
        }

        return logger.throwArgumentError("unsupported fragment", "value", value);
@@ -927,12 +931,90 @@ export class FunctionFragment extends ConstructorFragment {
    }
 }

-//export class ErrorFragment extends Fragment {
-//}
-
 //export class StructFragment extends Fragment {
 //}

+function checkForbidden(fragment: ErrorFragment): ErrorFragment {
+    const sig = fragment.format();
+    if (sig === "Error(string)" || sig === "Panic(uint256)") {
+        logger.throwArgumentError(`cannot specify user defined ${ sig } error`, "fragment", fragment);
+    }
+    return fragment;
+}
+
+export class ErrorFragment extends Fragment {
+
+    format(format?: string): string {
+        if (!format) { format = FormatTypes.sighash; }
+        if (!FormatTypes[format]) {
+            logger.throwArgumentError("invalid format type", "format", format);
+        }
+
+        if (format === FormatTypes.json) {
+            return JSON.stringify({
+                type: "error",
+                name: this.name,
+                inputs: this.inputs.map((input) => JSON.parse(input.format(format))),
+            });
+        }
+
+        let result = "";
+
+        if (format !== FormatTypes.sighash) {
+            result += "error ";
+        }
+
+        result += this.name + "(" + this.inputs.map(
+            (input) => input.format(format)
+        ).join((format === FormatTypes.full) ? ", ": ",") + ") ";
+
+        return result.trim();
+    }
+
+    static from(value: ErrorFragment | JsonFragment | string): ErrorFragment {
+        if (typeof(value) === "string") {
+            return ErrorFragment.fromString(value);
+        }
+        return ErrorFragment.fromObject(value);
+    }
+
+    static fromObject(value: ErrorFragment | JsonFragment): ErrorFragment {
+        if (ErrorFragment.isErrorFragment(value)) { return value; }
+
+        if (value.type !== "error") {
+            logger.throwArgumentError("invalid error object", "value", value);
+        }
+
+        const params: TypeCheck<_Fragment> = {
+            type: value.type,
+            name: verifyIdentifier(value.name),
+            inputs: (value.inputs ? value.inputs.map(ParamType.fromObject): [])
+        };
+
+        return checkForbidden(new ErrorFragment(_constructorGuard, params));
+    }
+
+    static fromString(value: string): ErrorFragment {
+        let params: any = { type: "error" };
+
+        let parens = value.match(regexParen);
+        if (!parens) {
+            logger.throwArgumentError("invalid error signature", "value", value);
+        }
+
+        params.name = parens[1].trim();
+        if (params.name) { verifyIdentifier(params.name); }
+
+        params.inputs = parseParams(parens[2], false);
+
+        return checkForbidden(ErrorFragment.fromObject(params));
+    }
+
+    static isErrorFragment(value: any): value is ErrorFragment {
+        return (value && value._isFragment && value.type === "error");
+    }
+}
+
 function verifyType(type: string): string {

    // These need to be transformed to their full description
--- a/packages/abi/src.ts/index.ts
+++ b/packages/abi/src.ts/index.ts
@@ -1,11 +1,12 @@
 "use strict";

-import { ConstructorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, JsonFragmentType, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, JsonFragmentType, ParamType } from "./fragments";
 import { AbiCoder, CoerceFunc, defaultAbiCoder } from "./abi-coder";
 import { checkResultErrors, Indexed, Interface, LogDescription, Result, TransactionDescription } from "./interface";

 export {
    ConstructorFragment,
+    ErrorFragment,
    EventFragment,
    Fragment,
    FunctionFragment,
--- a/packages/abi/src.ts/interface.ts
+++ b/packages/abi/src.ts/interface.ts
@@ -9,7 +9,7 @@ import { defineReadOnly, Description, getStatic } from "@ethersproject/propertie

 import { AbiCoder, defaultAbiCoder } from "./abi-coder";
 import { checkResultErrors, Result } from "./coders/abstract-coder";
-import { ConstructorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, ParamType } from "./fragments";
+import { ConstructorFragment, ErrorFragment, EventFragment, FormatTypes, Fragment, FunctionFragment, JsonFragment, ParamType } from "./fragments";

 import { Logger } from "@ethersproject/logger";
 import { version } from "./_version";
@@ -43,6 +43,11 @@ export class Indexed extends Description<Indexed> {
    }
 }

+const BuiltinErrors: Record<string, { signature: string, inputs: Array<string>, name: string, reason?: boolean }> = {
+    "0x08c379a0": { signature: "Error(string)", name: "Error", inputs: [ "string" ], reason: true },
+    "0x4e487b71": { signature: "Panic(uint256)", name: "Panic", inputs: [ "uint256" ] }
+}
+
 function wrapAccessError(property: string, error: Error): Error {
    const wrap = new Error(`deferred error during ABI decoding triggered accessing ${ property }`);
    (<any>wrap).error = error;
@@ -65,7 +70,7 @@ function checkNames(fragment: Fragment, type: "input" | "output", params: Array<
 export class Interface {
    readonly fragments: ReadonlyArray<Fragment>;

-    readonly errors: { [ name: string ]: any };
+    readonly errors: { [ name: string ]: ErrorFragment };
    readonly events: { [ name: string ]: EventFragment };
    readonly functions: { [ name: string ]: FunctionFragment };
    readonly structs: { [ name: string ]: any };
@@ -118,6 +123,9 @@ export class Interface {
                    //checkNames(fragment, "input", fragment.inputs);
                    bucket = this.events;
                    break;
+                case "error":
+                    bucket = this.errors;
+                    break;
                default:
                    return;
            }
@@ -167,8 +175,8 @@ export class Interface {
        return getAddress(address);
    }

-    static getSighash(functionFragment: FunctionFragment): string {
-        return hexDataSlice(id(functionFragment.format()), 0, 4);
+    static getSighash(fragment: ErrorFragment | FunctionFragment): string {
+        return hexDataSlice(id(fragment.format()), 0, 4);
    }

    static getEventTopic(eventFragment: EventFragment): string {
@@ -240,6 +248,40 @@ export class Interface {
        return result;
    }

+    // Find a function definition by any means necessary (unless it is ambiguous)
+    getError(nameOrSignatureOrSighash: string): ErrorFragment {
+        if (isHexString(nameOrSignatureOrSighash)) {
+            const getSighash = getStatic<(f: ErrorFragment | FunctionFragment) => string>(this.constructor, "getSighash");
+            for (const name in this.errors) {
+                const error = this.errors[name];
+                if (nameOrSignatureOrSighash === getSighash(error)) {
+                    return this.errors[name];
+                }
+            }
+            logger.throwArgumentError("no matching error", "sighash", nameOrSignatureOrSighash);
+        }
+
+        // It is a bare name, look up the function (will return null if ambiguous)
+        if (nameOrSignatureOrSighash.indexOf("(") === -1) {
+            const name = nameOrSignatureOrSighash.trim();
+            const matching = Object.keys(this.errors).filter((f) => (f.split("("/* fix:) */)[0] === name));
+            if (matching.length === 0) {
+                logger.throwArgumentError("no matching error", "name", name);
+            } else if (matching.length > 1) {
+                logger.throwArgumentError("multiple matching errors", "name", name);
+            }
+
+            return this.errors[matching[0]];
+        }
+
+        // Normlize the signature and lookup the function
+        const result = this.errors[FunctionFragment.fromString(nameOrSignatureOrSighash).format()];
+        if (!result) {
+            logger.throwArgumentError("no matching error", "signature", nameOrSignatureOrSighash);
+        }
+        return result;
+    }
+
    // Get the sighash (the bytes4 selector) used by Solidity to identify a function
    getSighash(functionFragment: FunctionFragment | string): string {
        if (typeof(functionFragment) === "string") {
@@ -304,9 +346,11 @@ export class Interface {
            functionFragment = this.getFunction(functionFragment);
        }

-        let bytes  = arrayify(data);
+        let bytes = arrayify(data);

        let reason: string = null;
+        let errorArgs: Result = null;
+        let errorName: string = null;
        let errorSignature: string = null;
        switch (bytes.length % this._abiCoder._getWordSize()) {
            case 0:
@@ -315,19 +359,31 @@ export class Interface {
                } catch (error) { }
                break;

-            case 4:
-                if (hexlify(bytes.slice(0, 4)) === "0x08c379a0") {
-                    errorSignature = "Error(string)";
-                    reason = this._abiCoder.decode([ "string" ], bytes.slice(4))[0];
+            case 4: {
+                const selector = hexlify(bytes.slice(0, 4));
+                const builtin = BuiltinErrors[selector];
+                if (builtin) {
+                    errorArgs = this._abiCoder.decode(builtin.inputs, bytes.slice(4));
+                    errorName = builtin.name;
+                    errorSignature = builtin.signature;
+                    if (builtin.reason) { reason = errorArgs[0]; }
+                } else {
+                    try {
+                        const error = this.getError(selector);
+                        errorArgs = this._abiCoder.decode(error.inputs, bytes.slice(4));
+                        errorName = error.name;
+                        errorSignature = error.format();
+                    } catch (error) {
+                        console.log(error);
+                    }
                }
                break;
+            }
        }

        return logger.throwError("call revert exception", Logger.errors.CALL_EXCEPTION, {
            method: functionFragment.format(),
-            errorSignature: errorSignature,
-            errorArgs: [ reason ],
-            reason: reason
+            errorArgs, errorName, errorSignature, reason
        });
    }

@@ -547,6 +603,9 @@ export class Interface {
        });
    }

+    // @TODO
+    //parseCallResult(data: BytesLike): ??
+
    // Given an event log, find the matching event fragment (if any) and
    // determine all its properties and values
    parseLog(log: { topics: Array<string>, data: string}): LogDescription {
--- a/packages/abstract-provider/lib.esm/_version.d.ts
+++ b/packages/abstract-provider/lib.esm/_version.d.ts
@@ -1,2 +1,2 @@
-export declare const version = "abstract-provider/5.1.0";
+export declare const version = "abstract-provider/5.3.0";
 //# sourceMappingURL=_version.d.ts.map
--- a/packages/abstract-provider/lib.esm/_version.js
+++ b/packages/abstract-provider/lib.esm/_version.js
@@ -1,2 +1,2 @@
-export const version = "abstract-provider/5.1.0";
+export const version = "abstract-provider/5.3.0";
 //# sourceMappingURL=_version.js.map
--- a/packages/abstract-provider/lib.esm/index.d.ts
+++ b/packages/abstract-provider/lib.esm/index.d.ts
@@ -75,7 +75,7 @@ export interface TransactionReceipt {
 }
 export interface EventFilter {
    address?: string;
-    topics?: Array<string | Array<string>>;
+    topics?: Array<string | Array<string> | null>;
 }
 export interface Filter extends EventFilter {
    fromBlock?: BlockTag;
--- a/packages/abstract-provider/lib.esm/index.d.ts.map
+++ b/packages/abstract-provider/lib.esm/index.d.ts.map
--- a/packages/abstract-provider/lib/_version.d.ts
+++ b/packages/abstract-provider/lib/_version.d.ts
@@ -1,2 +1,2 @@
-export declare const version = "abstract-provider/5.1.0";
+export declare const version = "abstract-provider/5.3.0";
 //# sourceMappingURL=_version.d.ts.map
--- a/packages/abstract-provider/lib/_version.js
+++ b/packages/abstract-provider/lib/_version.js
@@ -1,5 +1,5 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.version = void 0;
-exports.version = "abstract-provider/5.1.0";
+exports.version = "abstract-provider/5.3.0";
 //# sourceMappingURL=_version.js.map
--- a/packages/abstract-provider/lib/index.d.ts
+++ b/packages/abstract-provider/lib/index.d.ts
@@ -75,7 +75,7 @@ export interface TransactionReceipt {
 }
 export interface EventFilter {
    address?: string;
-    topics?: Array<string | Array<string>>;
+    topics?: Array<string | Array<string> | null>;
 }
 export interface Filter extends EventFilter {
    fromBlock?: BlockTag;
--- a/packages/abstract-provider/lib/index.d.ts.map
+++ b/packages/abstract-provider/lib/index.d.ts.map
--- a/packages/abstract-provider/package.json
+++ b/packages/abstract-provider/package.json
@@ -1,13 +1,13 @@
 {
  "author": "Richard Moore <me@ricmoo.com>",
  "dependencies": {
-    "@ethersproject/bignumber": "^5.1.0",
-    "@ethersproject/bytes": "^5.1.0",
-    "@ethersproject/logger": "^5.1.0",
-    "@ethersproject/networks": "^5.1.0",
-    "@ethersproject/properties": "^5.1.0",
-    "@ethersproject/transactions": "^5.1.0",
-    "@ethersproject/web": "^5.1.0"
+    "@ethersproject/bignumber": "^5.3.0",
+    "@ethersproject/bytes": "^5.3.0",
+    "@ethersproject/logger": "^5.3.0",
+    "@ethersproject/networks": "^5.3.0",
+    "@ethersproject/properties": "^5.3.0",
+    "@ethersproject/transactions": "^5.3.0",
+    "@ethersproject/web": "^5.3.0"
  },
  "description": "An Abstract Class for describing an Ethereum Provider for ethers.",
  "ethereum": "donations.ethers.eth",
@@ -41,7 +41,7 @@
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "sideEffects": false,
-  "tarballHash": "0x9a2ee9005c813b52689b7d87a01f6ce29010ef3f899c5fc500e6ae3ea0f03ea2",
+  "tarballHash": "0xbe087cfc8ee43f3154f8006b382424ca7394b04d34fc089372ade08ba9cb65b6",
  "types": "./lib/index.d.ts",
-  "version": "5.1.0"
+  "version": "5.3.0"
 }
--- a/packages/abstract-provider/src.ts/_version.ts
+++ b/packages/abstract-provider/src.ts/_version.ts
@@ -1 +1 @@
-export const version = "abstract-provider/5.1.0";
+export const version = "abstract-provider/5.3.0";
--- a/packages/abstract-provider/src.ts/index.ts
+++ b/packages/abstract-provider/src.ts/index.ts
@@ -114,7 +114,7 @@ export interface TransactionReceipt {

 export interface EventFilter {
    address?: string;
-    topics?: Array<string | Array<string>>;
+    topics?: Array<string | Array<string> | null>;
 }

 export interface Filter extends EventFilter {
--- a/packages/abstract-signer/lib.esm/_version.d.ts
+++ b/packages/abstract-signer/lib.esm/_version.d.ts
@@ -1,2 +1,2 @@
-export declare const version = "abstract-signer/5.1.0";
+export declare const version = "abstract-signer/5.3.0";
 //# sourceMappingURL=_version.d.ts.map
--- a/packages/abstract-signer/lib.esm/_version.js
+++ b/packages/abstract-signer/lib.esm/_version.js
@@ -1,2 +1,2 @@
-export const version = "abstract-signer/5.1.0";
+export const version = "abstract-signer/5.3.0";
 //# sourceMappingURL=_version.js.map
--- a/packages/abstract-signer/lib/_version.d.ts
+++ b/packages/abstract-signer/lib/_version.d.ts
@@ -1,2 +1,2 @@
-export declare const version = "abstract-signer/5.1.0";
+export declare const version = "abstract-signer/5.3.0";
 //# sourceMappingURL=_version.d.ts.map
--- a/packages/abstract-signer/lib/_version.js
+++ b/packages/abstract-signer/lib/_version.js
@@ -1,5 +1,5 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.version = void 0;
-exports.version = "abstract-signer/5.1.0";
+exports.version = "abstract-signer/5.3.0";
 //# sourceMappingURL=_version.js.map
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Richard Moore	4e6d121fb8	Updated dist files.	2021-05-31 19:06:24 -04:00
Richard Moore	bfcd05fcbb	Added MinInt256 and MaxInt256 constants (#1576 ).	2021-05-31 18:32:33 -04:00
Richard Moore	819b1ace5c	Version bumps for bn.js and hash.js to match elliptic and fix some build tools (#1478 ).	2021-05-31 18:29:26 -04:00
Richard Moore	4b331148d9	Removed Hangul checks in shims which crashes Android (#1519 ).	2021-05-31 18:20:32 -04:00
Richard Moore	7adcf3b154	Fixed ENS namehash with leading and trailing dots (#1605 ).	2021-05-31 18:16:30 -04:00
Richard Moore	630656e949	Fixed broken variable in template string (#1624 , #1626 ).	2021-05-31 17:40:32 -04:00
Richard Moore	8681cd5969	Fixed FixedNumber rounding for non-default formats (#1629 ).	2021-05-31 17:37:56 -04:00
Richard Moore	470551e4ee	Update ws dependency version to fix security (#1633 , #1634 ).	2021-05-31 15:46:47 -04:00
Richard Moore	d395d16fa3	admin: flags for karma to prevent timeout	2021-05-19 01:30:12 -04:00
Richard Moore	8077ce0aae	Updated dist files.	2021-05-19 00:05:36 -04:00
Richard Moore	2fe78ad7e3	ci: Removing Pocket network from the default provider and tests as it is not currently reliable	2021-05-19 00:00:10 -04:00
Richard Moore	5f1f2c5e2c	Updated dist files	2021-05-18 16:02:27 -04:00
Richard Moore	3c79ee8cef	admin: added words to spellcheck	2021-05-18 15:56:01 -04:00
Richard Moore	772067a3c9	admin: added words to spellchecker	2021-05-18 15:53:15 -04:00
Richard Moore	621897f249	More resiliant testing.	2021-05-18 15:52:32 -04:00
Richard Moore	d3b7130ed6	Merge branch 'master' of github.com:ethers-io/ethers.js	2021-05-17 16:29:33 -04:00
Richard Moore	dad3829c2e	Updated dist files.	2021-05-17 16:19:36 -04:00
Richard Moore	de4d683f6d	admin: moved some changelog links around	2021-05-17 16:13:35 -04:00
Richard Moore	ebe4cc90f5	admin: updated Changelog	2021-05-13 23:51:01 -04:00
Richard Moore	35e3bf9d11	admin: dependency security audit updates	2021-05-13 23:50:24 -04:00
Richard Moore	2d717dcef8	docs: updated banner version.	2021-05-13 23:49:30 -04:00
Richard Moore	3316468e3e	More aggresively check for mempool transactions sent from JsonRpcSigner.	2021-05-13 23:29:59 -04:00
Richard Moore	5144acf456	Added initial support for detecting replacement transactions (#1477 ).	2021-05-13 23:28:47 -04:00
Richard Moore	aadc5cd3d6	Added convenience method for HD path derivation.	2021-05-13 23:02:00 -04:00
Richard Moore	6e088099ad	Added mnemonicPath option to cli.	2021-05-13 22:59:16 -04:00
Richard Moore	b6370f1360	Added some popular Ethereum-compatible chains to networks.	2021-05-13 22:58:16 -04:00
Richard Moore	26464c5425	Added debug event to Web3Provider.	2021-05-13 22:27:13 -04:00
Richard Moore	37a9c77ab2	Abstracted EtherscanProivder to more easily fascilitate other Etherscan-supported chains (#1204 , #1473 ).	2021-05-07 00:31:15 -04:00
Richard Moore	4898e7baac	admin: update issue templates	2021-04-27 18:43:54 -04:00
Richard Moore	c71bbbe7db	admin: fixed config.yml filename	2021-04-27 18:40:44 -04:00
Richard Moore	c8fecbbc29	admin: fixed duplicate files GitHub UI created.	2021-04-27 18:38:22 -04:00
Richard Moore	b4df28dddd	Update issue templates	2021-04-27 18:32:06 -04:00
Richard Moore	483d67f55c	Added EIP-838 error name as well as error signature (#1498 ).	2021-04-26 17:46:16 -04:00
Richard Moore	987bec87af	Added new error for replaced transactions (#1477 ).	2021-04-26 12:06:37 -04:00
Richard Moore	a9cdbe1238	More flexible FixedNumber input and output for strings with no decimals (#1019 , #1291 , #1463 ).	2021-04-23 18:41:00 -04:00
Richard Moore	4e9abfdee4	Added hex support for bigint (#1472 ).	2021-04-23 17:44:22 -04:00
Richard Moore	3bb5fbf533	Added support for null entries in EventFilter (#1499 ).	2021-04-23 17:43:27 -04:00
Richard Moore	cadccc3060	Add bigint to allowed BigNumberish types (#1472 ).	2021-04-22 22:34:06 -04:00
Richard Moore	65196097f6	Support for EIP-838 custom contract errors (#1498 ).	2021-04-22 22:29:30 -04:00
Richard Moore	8e22e0260e	Minor version bump.	2021-04-22 22:10:56 -04:00
Richard Moore	de7da421b3	docs: updated versions and dates	2021-04-22 06:34:44 -04:00
Richard Moore	a9f7957550	Updated dist files.	2021-04-22 06:34:02 -04:00
Richard Moore	bd2d44eecf	docs: updated script links in README.	2021-04-22 06:28:46 -04:00
Richard Moore	bd05aed070	Do not throw on ABI _error_ type (#1493 , #1497 ).	2021-04-22 06:26:56 -04:00
Richard Moore	ce8f1e4015	Updated dist files.	2021-04-19 21:30:28 -04:00
Richard Moore	58488e78f9	Fixed JsonRpcProvider event-loop caching when using any network (#1484 ).	2021-04-19 20:56:18 -04:00
Richard Moore	29116593ba	Updated experimental Eip1193Bridge to support final EIP-1193 API.	2021-04-19 20:52:50 -04:00
Richard Moore	51f0e1a52f	Fail early for ABI decoding that will obviously run out of data (#1486 ).	2021-04-19 20:26:05 -04:00
Richard Moore	c086962302	Fixed BigNumber toBigInt return type (#1485 ).	2021-04-19 20:09:39 -04:00
Richard Moore	c0daf437f7	Updated dist files.	2021-04-18 19:33:26 -04:00
Richard Moore	8eaeba35f5	Increase provider tests gas price for sending a transaction.	2021-04-18 19:26:39 -04:00
Richard Moore	4a44865a8c	Fixed run-checking non-filter Contract events (#1458 ).	2021-04-18 19:23:27 -04:00
Richard Moore	725fe0aa32	Updated dist files.	2021-04-18 02:48:05 -04:00
Richard Moore	08adc18a68	Increased sendTransaction timeout to 15 minutes and pull Pocket from tx tests.	2021-04-18 02:42:20 -04:00
Richard Moore	1fcf4b6ce6	Export Eip1193Bridge in experimental package.	2021-04-18 02:40:26 -04:00
Richard Moore	7c8ae9cfcb	Merge branch 'master' of github.com:ethers-io/ethers.js	2021-04-17 22:41:31 -04:00
Richard Moore	0cd5fccfad	Updated dist files.	2021-04-17 22:41:09 -04:00
Richard Moore	53ee187443	admin: updated spell-check data	2021-04-17 22:37:04 -04:00
Richard Moore	4577444c44	Prevent non-typed transactions from unsafely ignoring specified access lists (#1364 ).	2021-04-17 22:35:40 -04:00
Richard Moore	1cb3199e5c	Update tests for current EIP-2930 support across backends (#1364 ).	2021-04-17 22:23:18 -04:00
Richard Moore	25c3024a89	docs: added AccessLists details (#1364 ).	2021-04-17 22:09:50 -04:00
Richard Moore	ae0d5eb7c2	Removed underscore from the JsonRpcBatchProvider name (#62 , #656 , #892 ).	2021-04-17 18:12:08 -04:00
Richard Moore	b8df000c8f	Added better error detection when pre-EIP-155 transactions are disabled.	2021-04-17 18:10:27 -04:00
Richard Moore	eb1ec2f231	Fix Android React Native environment shims which crash on normalizing Korean test (#1298 ).	2021-04-17 18:08:00 -04:00
Richard Moore	b65508995c	Fixed EIP-2930 transactions for EtherscanProvider (#1364 ).	2021-04-14 15:04:24 -04:00
Richard Moore	2a7dbf0571	Update issue templates	2021-04-12 20:50:14 -04:00
Richard Moore	0dc6f4a45b	Update issue templates	2021-04-12 20:43:44 -04:00
Richard Moore	2534b1b3b2	docs: fixed typo in signature (#1411 ).	2021-04-10 19:58:20 -04:00
Richard Moore	a11602d066	docs: fixed typo (#1450 ).	2021-04-10 19:56:40 -04:00
Richard Moore	bec066bcb5	Re-enable AlchemyProvider Berlin tests.	2021-04-02 19:10:16 -04:00
Richard Moore	ef5a2b4baa	docs: added details for reverted calls.	2021-04-02 03:55:53 -04:00
Richard Moore	9e273220b6	docs: Fixed typo in getting-started (#1423 ).	2021-04-02 03:55:06 -04:00
Richard Moore	d55ab6d4e6	Added experimental _JsonRpcBatchProvider (#62 , #656 , #892 ).	2021-04-02 03:53:48 -04:00
Richard Moore	1a7c4e89ef	Cache JsonRpcProvider requests for certain methods per event loop (#1371 ).	2021-04-02 03:45:47 -04:00
Richard Moore	c84a5e62f5	admin: updated admin dist files	2021-03-30 19:59:47 -04:00
Richard Moore	6978cca17d	admin: fixed rats nest linking on Windows (#1345 , #1346 )	2021-03-30 19:59:28 -04:00
Richard Moore	0e3016bfae	admin: updated admin dist files	2021-03-30 19:55:25 -04:00
Richard Moore	d50b2d7e65	admin: updated spell check words	2021-03-30 19:54:52 -04:00
Richard Moore	941e4210c6	admin: added minor version bumping	2021-03-30 19:54:20 -04:00