Beta 7 with some repo names changed.

2020-11-15 13:05:19 +01:00
1 parent 0f7b40cca7
commit 963c19493a
@@ -0,0 +1,2 @@
+export const version = "hash/5.0.6";
+//# sourceMappingURL=_version.js.map
@@ -0,0 +1,6 @@
+import { keccak256 } from "@ethersproject/keccak256";
+import { toUtf8Bytes } from "@ethersproject/strings";
+export function id(text) {
+    return keccak256(toUtf8Bytes(text));
+}
+//# sourceMappingURL=id.js.map
@@ -0,0 +1,7 @@
+"use strict";
+import { id } from "./id";
+import { isValidName, namehash } from "./namehash";
+import { hashMessage, messagePrefix } from "./message";
+import { TypedDataEncoder as _TypedDataEncoder } from "./typed-data";
+export { id, namehash, isValidName, messagePrefix, hashMessage, _TypedDataEncoder, };
+//# sourceMappingURL=index.js.map
@@ -0,0 +1,15 @@
+import { concat } from "@ethersproject/bytes";
+import { keccak256 } from "@ethersproject/keccak256";
+import { toUtf8Bytes } from "@ethersproject/strings";
+export const messagePrefix = "\x19Ethereum Signed Message:\n";
+export function hashMessage(message) {
+    if (typeof (message) === "string") {
+        message = toUtf8Bytes(message);
+    }
+    return keccak256(concat([
+        toUtf8Bytes(messagePrefix),
+        toUtf8Bytes(String(message.length)),
+        message
+    ]));
+}
+//# sourceMappingURL=message.js.map
@@ -0,0 +1,37 @@
+import { concat, hexlify } from "@ethersproject/bytes";
+import { nameprep, toUtf8Bytes } from "@ethersproject/strings";
+import { keccak256 } from "@ethersproject/keccak256";
+import { Logger } from "@ethersproject/logger";
+import { version } from "./_version";
+const logger = new Logger(version);
+const Zeros = new Uint8Array(32);
+Zeros.fill(0);
+const Partition = new RegExp("^((.*)\\.)?([^.]+)$");
+export function isValidName(name) {
+    try {
+        const comps = name.split(".");
+        for (let i = 0; i < comps.length; i++) {
+            if (nameprep(comps[i]).length === 0) {
+                throw new Error("empty");
+            }
+        }
+        return true;
+    }
+    catch (error) { }
+    return false;
+}
+export function namehash(name) {
+    /* istanbul ignore if */
+    if (typeof (name) !== "string") {
+        logger.throwArgumentError("invalid address - " + String(name), "name", name);
+    }
+    let result = Zeros;
+    while (name.length) {
+        const partition = name.match(Partition);
+        const label = toUtf8Bytes(nameprep(partition[3]));
+        result = keccak256(concat([result, keccak256(label)]));
+        name = partition[2] || "";
+    }
+    return hexlify(result);
+}
+//# sourceMappingURL=namehash.js.map
@@ -0,0 +1,444 @@
+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());
+    });
+};
+import { getAddress } from "@ethersproject/address";
+import { BigNumber } from "@ethersproject/bignumber";
+import { arrayify, hexConcat, hexlify, hexValue, hexZeroPad, isHexString } from "@ethersproject/bytes";
+import { keccak256 } from "@ethersproject/keccak256";
+import { deepCopy, defineReadOnly, shallowCopy } from "@ethersproject/properties";
+import { Logger } from "@ethersproject/logger";
+import { version } from "./_version";
+const logger = new Logger(version);
+import { id } from "./id";
+const padding = new Uint8Array(32);
+padding.fill(0);
+const NegativeOne = BigNumber.from(-1);
+const Zero = BigNumber.from(0);
+const One = BigNumber.from(1);
+const MaxUint256 = BigNumber.from("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+function hexPadRight(value) {
+    const bytes = arrayify(value);
+    const padOffset = bytes.length % 32;
+    if (padOffset) {
+        return hexConcat([bytes, padding.slice(padOffset)]);
+    }
+    return hexlify(bytes);
+}
+const hexTrue = hexZeroPad(One.toHexString(), 32);
+const hexFalse = hexZeroPad(Zero.toHexString(), 32);
+const domainFieldTypes = {
+    name: "string",
+    version: "string",
+    chainId: "uint256",
+    verifyingContract: "address",
+    salt: "bytes32"
+};
+const domainFieldNames = [
+    "name", "version", "chainId", "verifyingContract", "salt"
+];
+function checkString(key) {
+    return function (value) {
+        if (typeof (value) !== "string") {
+            logger.throwArgumentError(`invalid domain value for ${JSON.stringify(key)}`, `domain.${key}`, value);
+        }
+        return value;
+    };
+}
+const domainChecks = {
+    name: checkString("name"),
+    version: checkString("version"),
+    chainId: function (value) {
+        try {
+            return BigNumber.from(value).toString();
+        }
+        catch (error) { }
+        return logger.throwArgumentError(`invalid domain value for "chainId"`, "domain.chainId", value);
+    },
+    verifyingContract: function (value) {
+        try {
+            return getAddress(value).toLowerCase();
+        }
+        catch (error) { }
+        return logger.throwArgumentError(`invalid domain value "verifyingContract"`, "domain.verifyingContract", value);
+    },
+    salt: function (value) {
+        try {
+            const bytes = arrayify(value);
+            if (bytes.length !== 32) {
+                throw new Error("bad length");
+            }
+            return hexlify(bytes);
+        }
+        catch (error) { }
+        return logger.throwArgumentError(`invalid domain value "salt"`, "domain.salt", value);
+    }
+};
+function getBaseEncoder(type) {
+    // intXX and uintXX
+    {
+        const match = type.match(/^(u?)int(\d*)$/);
+        if (match) {
+            const signed = (match[1] === "");
+            const width = parseInt(match[2] || "256");
+            if (width % 8 !== 0 || width > 256 || (match[2] && match[2] !== String(width))) {
+                logger.throwArgumentError("invalid numeric width", "type", type);
+            }
+            const boundsUpper = MaxUint256.mask(signed ? (width - 1) : width);
+            const boundsLower = signed ? boundsUpper.add(One).mul(NegativeOne) : Zero;
+            return function (value) {
+                const v = BigNumber.from(value);
+                if (v.lt(boundsLower) || v.gt(boundsUpper)) {
+                    logger.throwArgumentError(`value out-of-bounds for ${type}`, "value", value);
+                }
+                return hexZeroPad(v.toTwos(256).toHexString(), 32);
+            };
+        }
+    }
+    // bytesXX
+    {
+        const match = type.match(/^bytes(\d+)$/);
+        if (match) {
+            const width = parseInt(match[1]);
+            if (width === 0 || width > 32 || match[1] !== String(width)) {
+                logger.throwArgumentError("invalid bytes width", "type", type);
+            }
+            return function (value) {
+                const bytes = arrayify(value);
+                if (bytes.length !== width) {
+                    logger.throwArgumentError(`invalid length for ${type}`, "value", value);
+                }
+                return hexPadRight(value);
+            };
+        }
+    }
+    switch (type) {
+        case "address": return function (value) {
+            return hexZeroPad(getAddress(value), 32);
+        };
+        case "bool": return function (value) {
+            return ((!value) ? hexFalse : hexTrue);
+        };
+        case "bytes": return function (value) {
+            return keccak256(value);
+        };
+        case "string": return function (value) {
+            return id(value);
+        };
+    }
+    return null;
+}
+function encodeType(name, fields) {
+    return `${name}(${fields.map(({ name, type }) => (type + " " + name)).join(",")})`;
+}
+export class TypedDataEncoder {
+    constructor(types) {
+        defineReadOnly(this, "types", Object.freeze(deepCopy(types)));
+        defineReadOnly(this, "_encoderCache", {});
+        defineReadOnly(this, "_types", {});
+        // Link struct types to their direct child structs
+        const links = {};
+        // Link structs to structs which contain them as a child
+        const parents = {};
+        // Link all subtypes within a given struct
+        const subtypes = {};
+        Object.keys(types).forEach((type) => {
+            links[type] = {};
+            parents[type] = [];
+            subtypes[type] = {};
+        });
+        for (const name in types) {
+            const uniqueNames = {};
+            types[name].forEach((field) => {
+                // Check each field has a unique name
+                if (uniqueNames[field.name]) {
+                    logger.throwArgumentError(`duplicate variable name ${JSON.stringify(field.name)} in ${JSON.stringify(name)}`, "types", types);
+                }
+                uniqueNames[field.name] = true;
+                // Get the base type (drop any array specifiers)
+                const baseType = field.type.match(/^([^\x5b]*)(\x5b|$)/)[1];
+                if (baseType === name) {
+                    logger.throwArgumentError(`circular type reference to ${JSON.stringify(baseType)}`, "types", types);
+                }
+                // Is this a base encoding type?
+                const encoder = getBaseEncoder(baseType);
+                if (encoder) {
+                    return;
+                }
+                if (!parents[baseType]) {
+                    logger.throwArgumentError(`unknown type ${JSON.stringify(baseType)}`, "types", types);
+                }
+                // Add linkage
+                parents[baseType].push(name);
+                links[name][baseType] = true;
+            });
+        }
+        // Deduce the primary type
+        const primaryTypes = Object.keys(parents).filter((n) => (parents[n].length === 0));
+        if (primaryTypes.length === 0) {
+            logger.throwArgumentError("missing primary type", "types", types);
+        }
+        else if (primaryTypes.length > 1) {
+            logger.throwArgumentError(`ambiguous primary types or unused types: ${primaryTypes.map((t) => (JSON.stringify(t))).join(", ")}`, "types", types);
+        }
+        defineReadOnly(this, "primaryType", primaryTypes[0]);
+        // Check for circular type references
+        function checkCircular(type, found) {
+            if (found[type]) {
+                logger.throwArgumentError(`circular type reference to ${JSON.stringify(type)}`, "types", types);
+            }
+            found[type] = true;
+            Object.keys(links[type]).forEach((child) => {
+                if (!parents[child]) {
+                    return;
+                }
+                // Recursively check children
+                checkCircular(child, found);
+                // Mark all ancestors as having this decendant
+                Object.keys(found).forEach((subtype) => {
+                    subtypes[subtype][child] = true;
+                });
+            });
+            delete found[type];
+        }
+        checkCircular(this.primaryType, {});
+        // Compute each fully describe type
+        for (const name in subtypes) {
+            const st = Object.keys(subtypes[name]);
+            st.sort();
+            this._types[name] = encodeType(name, types[name]) + st.map((t) => encodeType(t, types[t])).join("");
+        }
+    }
+    getEncoder(type) {
+        let encoder = this._encoderCache[type];
+        if (!encoder) {
+            encoder = this._encoderCache[type] = this._getEncoder(type);
+        }
+        return encoder;
+    }
+    _getEncoder(type) {
+        // Basic encoder type (address, bool, uint256, etc)
+        {
+            const encoder = getBaseEncoder(type);
+            if (encoder) {
+                return encoder;
+            }
+        }
+        // Array
+        const match = type.match(/^(.*)(\x5b(\d*)\x5d)$/);
+        if (match) {
+            const subtype = match[1];
+            const subEncoder = this.getEncoder(subtype);
+            const length = parseInt(match[3]);
+            return (value) => {
+                if (length >= 0 && value.length !== length) {
+                    logger.throwArgumentError("array length mismatch; expected length ${ arrayLength }", "value", value);
+                }
+                let result = value.map(subEncoder);
+                if (this._types[subtype]) {
+                    result = result.map(keccak256);
+                }
+                return keccak256(hexConcat(result));
+            };
+        }
+        // Struct
+        const fields = this.types[type];
+        if (fields) {
+            const encodedType = id(this._types[type]);
+            return (value) => {
+                const values = fields.map(({ name, type }) => {
+                    const result = this.getEncoder(type)(value[name]);
+                    if (this._types[type]) {
+                        return keccak256(result);
+                    }
+                    return result;
+                });
+                values.unshift(encodedType);
+                return hexConcat(values);
+            };
+        }
+        return logger.throwArgumentError(`unknown type: ${type}`, "type", type);
+    }
+    encodeType(name) {
+        const result = this._types[name];
+        if (!result) {
+            logger.throwArgumentError(`unknown type: ${JSON.stringify(name)}`, "name", name);
+        }
+        return result;
+    }
+    encodeData(type, value) {
+        return this.getEncoder(type)(value);
+    }
+    hashStruct(name, value) {
+        return keccak256(this.encodeData(name, value));
+    }
+    encode(value) {
+        return this.encodeData(this.primaryType, value);
+    }
+    hash(value) {
+        return this.hashStruct(this.primaryType, value);
+    }
+    _visit(type, value, callback) {
+        // Basic encoder type (address, bool, uint256, etc)
+        {
+            const encoder = getBaseEncoder(type);
+            if (encoder) {
+                return callback(type, value);
+            }
+        }
+        // Array
+        const match = type.match(/^(.*)(\x5b(\d*)\x5d)$/);
+        if (match) {
+            const subtype = match[1];
+            const length = parseInt(match[3]);
+            if (length >= 0 && value.length !== length) {
+                logger.throwArgumentError("array length mismatch; expected length ${ arrayLength }", "value", value);
+            }
+            return value.map((v) => this._visit(subtype, v, callback));
+        }
+        // Struct
+        const fields = this.types[type];
+        if (fields) {
+            return fields.reduce((accum, { name, type }) => {
+                accum[name] = this._visit(type, value[name], callback);
+                return accum;
+            }, {});
+        }
+        return logger.throwArgumentError(`unknown type: ${type}`, "type", type);
+    }
+    visit(value, callback) {
+        return this._visit(this.primaryType, value, callback);
+    }
+    static from(types) {
+        return new TypedDataEncoder(types);
+    }
+    static getPrimaryType(types) {
+        return TypedDataEncoder.from(types).primaryType;
+    }
+    static hashStruct(name, types, value) {
+        return TypedDataEncoder.from(types).hashStruct(name, value);
+    }
+    static hashDomain(domain) {
+        const domainFields = [];
+        for (const name in domain) {
+            const type = domainFieldTypes[name];
+            if (!type) {
+                logger.throwArgumentError(`invalid typed-data domain key: ${JSON.stringify(name)}`, "domain", domain);
+            }
+            domainFields.push({ name, type });
+        }
+        domainFields.sort((a, b) => {
+            return domainFieldNames.indexOf(a.name) - domainFieldNames.indexOf(b.name);
+        });
+        return TypedDataEncoder.hashStruct("EIP712Domain", { EIP712Domain: domainFields }, domain);
+    }
+    static encode(domain, types, value) {
+        return hexConcat([
+            "0x1901",
+            TypedDataEncoder.hashDomain(domain),
+            TypedDataEncoder.from(types).hash(value)
+        ]);
+    }
+    static hash(domain, types, value) {
+        return keccak256(TypedDataEncoder.encode(domain, types, value));
+    }
+    // Replaces all address types with ENS names with their looked up address
+    static resolveNames(domain, types, value, resolveName) {
+        return __awaiter(this, void 0, void 0, function* () {
+            // Make a copy to isolate it from the object passed in
+            domain = shallowCopy(domain);
+            // Look up all ENS names
+            const ensCache = {};
+            // Do we need to look up the domain's verifyingContract?
+            if (domain.verifyingContract && !isHexString(domain.verifyingContract, 20)) {
+                ensCache[domain.verifyingContract] = "0x";
+            }
+            // We are going to use the encoder to visit all the base values
+            const encoder = TypedDataEncoder.from(types);
+            // Get a list of all the addresses
+            encoder.visit(value, (type, value) => {
+                if (type === "address" && !isHexString(value, 20)) {
+                    ensCache[value] = "0x";
+                }
+                return value;
+            });
+            // Lookup each name
+            for (const name in ensCache) {
+                ensCache[name] = yield resolveName(name);
+            }
+            // Replace the domain verifyingContract if needed
+            if (domain.verifyingContract && ensCache[domain.verifyingContract]) {
+                domain.verifyingContract = ensCache[domain.verifyingContract];
+            }
+            // Replace all ENS names with their address
+            value = encoder.visit(value, (type, value) => {
+                if (type === "address" && ensCache[value]) {
+                    return ensCache[value];
+                }
+                return value;
+            });
+            return { domain, value };
+        });
+    }
+    static getPayload(domain, types, value) {
+        // Validate the domain fields
+        TypedDataEncoder.hashDomain(domain);
+        // Derive the EIP712Domain Struct reference type
+        const domainValues = {};
+        const domainTypes = [];
+        domainFieldNames.forEach((name) => {
+            const value = domain[name];
+            if (value == null) {
+                return;
+            }
+            domainValues[name] = domainChecks[name](value);
+            domainTypes.push({ name, type: domainFieldTypes[name] });
+        });
+        const encoder = TypedDataEncoder.from(types);
+        const typesWithDomain = shallowCopy(types);
+        if (typesWithDomain.EIP712Domain) {
+            typesWithDomain.EIP712Domain = domainTypes;
+        }
+        // Validate the data structures and types
+        encoder.encode(value);
+        return {
+            types: typesWithDomain,
+            domain: domainValues,
+            primaryType: encoder.primaryType,
+            message: encoder.visit(value, (type, value) => {
+                // bytes
+                if (type.match(/^bytes(\d*)/)) {
+                    return hexlify(arrayify(value));
+                }
+                // uint or int
+                if (type.match(/^u?int/)) {
+                    let prefix = "";
+                    let v = BigNumber.from(value);
+                    if (v.isNegative()) {
+                        prefix = "-";
+                        v = v.mul(-1);
+                    }
+                    return prefix + hexValue(v.toHexString());
+                }
+                switch (type) {
+                    case "address":
+                        return value.toLowerCase();
+                    case "bool":
+                        return !!value;
+                    case "string":
+                        if (typeof (value) !== "string") {
+                            logger.throwArgumentError(`invalid string`, "value", value);
+                        }
+                        return value;
+                }
+                return logger.throwArgumentError("unsupported type", "type", type);
+            })
+        };
+    }
+}
+//# sourceMappingURL=typed-data.js.map
@@ -0,0 +1,4 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.version = "hash/5.0.6";
+//# sourceMappingURL=_version.js.map
@@ -0,0 +1,9 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var keccak256_1 = require("@ethersproject/keccak256");
+var strings_1 = require("@ethersproject/strings");
+function id(text) {
+    return keccak256_1.keccak256(strings_1.toUtf8Bytes(text));
+}
+exports.id = id;
+//# sourceMappingURL=id.js.map
@@ -0,0 +1,13 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var id_1 = require("./id");
+exports.id = id_1.id;
+var namehash_1 = require("./namehash");
+exports.isValidName = namehash_1.isValidName;
+exports.namehash = namehash_1.namehash;
+var message_1 = require("./message");
+exports.hashMessage = message_1.hashMessage;
+exports.messagePrefix = message_1.messagePrefix;
+var typed_data_1 = require("./typed-data");
+exports._TypedDataEncoder = typed_data_1.TypedDataEncoder;
+//# sourceMappingURL=index.js.map
@@ -0,0 +1,18 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var bytes_1 = require("@ethersproject/bytes");
+var keccak256_1 = require("@ethersproject/keccak256");
+var strings_1 = require("@ethersproject/strings");
+exports.messagePrefix = "\x19Ethereum Signed Message:\n";
+function hashMessage(message) {
+    if (typeof (message) === "string") {
+        message = strings_1.toUtf8Bytes(message);
+    }
+    return keccak256_1.keccak256(bytes_1.concat([
+        strings_1.toUtf8Bytes(exports.messagePrefix),
+        strings_1.toUtf8Bytes(String(message.length)),
+        message
+    ]));
+}
+exports.hashMessage = hashMessage;
+//# sourceMappingURL=message.js.map
@@ -0,0 +1,41 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var bytes_1 = require("@ethersproject/bytes");
+var strings_1 = require("@ethersproject/strings");
+var keccak256_1 = require("@ethersproject/keccak256");
+var logger_1 = require("@ethersproject/logger");
+var _version_1 = require("./_version");
+var logger = new logger_1.Logger(_version_1.version);
+var Zeros = new Uint8Array(32);
+Zeros.fill(0);
+var Partition = new RegExp("^((.*)\\.)?([^.]+)$");
+function isValidName(name) {
+    try {
+        var comps = name.split(".");
+        for (var i = 0; i < comps.length; i++) {
+            if (strings_1.nameprep(comps[i]).length === 0) {
+                throw new Error("empty");
+            }
+        }
+        return true;
+    }
+    catch (error) { }
+    return false;
+}
+exports.isValidName = isValidName;
+function namehash(name) {
+    /* istanbul ignore if */
+    if (typeof (name) !== "string") {
+        logger.throwArgumentError("invalid address - " + String(name), "name", name);
+    }
+    var result = Zeros;
+    while (name.length) {
+        var partition = name.match(Partition);
+        var label = strings_1.toUtf8Bytes(strings_1.nameprep(partition[3]));
+        result = keccak256_1.keccak256(bytes_1.concat([result, keccak256_1.keccak256(label)]));
+        name = partition[2] || "";
+    }
+    return bytes_1.hexlify(result);
+}
+exports.namehash = namehash;
+//# sourceMappingURL=namehash.js.map
@@ -0,0 +1,503 @@
+"use strict";
+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 __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+var address_1 = require("@ethersproject/address");
+var bignumber_1 = require("@ethersproject/bignumber");
+var bytes_1 = require("@ethersproject/bytes");
+var keccak256_1 = require("@ethersproject/keccak256");
+var properties_1 = require("@ethersproject/properties");
+var logger_1 = require("@ethersproject/logger");
+var _version_1 = require("./_version");
+var logger = new logger_1.Logger(_version_1.version);
+var id_1 = require("./id");
+var padding = new Uint8Array(32);
+padding.fill(0);
+var NegativeOne = bignumber_1.BigNumber.from(-1);
+var Zero = bignumber_1.BigNumber.from(0);
+var One = bignumber_1.BigNumber.from(1);
+var MaxUint256 = bignumber_1.BigNumber.from("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+function hexPadRight(value) {
+    var bytes = bytes_1.arrayify(value);
+    var padOffset = bytes.length % 32;
+    if (padOffset) {
+        return bytes_1.hexConcat([bytes, padding.slice(padOffset)]);
+    }
+    return bytes_1.hexlify(bytes);
+}
+var hexTrue = bytes_1.hexZeroPad(One.toHexString(), 32);
+var hexFalse = bytes_1.hexZeroPad(Zero.toHexString(), 32);
+var domainFieldTypes = {
+    name: "string",
+    version: "string",
+    chainId: "uint256",
+    verifyingContract: "address",
+    salt: "bytes32"
+};
+var domainFieldNames = [
+    "name", "version", "chainId", "verifyingContract", "salt"
+];
+function checkString(key) {
+    return function (value) {
+        if (typeof (value) !== "string") {
+            logger.throwArgumentError("invalid domain value for " + JSON.stringify(key), "domain." + key, value);
+        }
+        return value;
+    };
+}
+var domainChecks = {
+    name: checkString("name"),
+    version: checkString("version"),
+    chainId: function (value) {
+        try {
+            return bignumber_1.BigNumber.from(value).toString();
+        }
+        catch (error) { }
+        return logger.throwArgumentError("invalid domain value for \"chainId\"", "domain.chainId", value);
+    },
+    verifyingContract: function (value) {
+        try {
+            return address_1.getAddress(value).toLowerCase();
+        }
+        catch (error) { }
+        return logger.throwArgumentError("invalid domain value \"verifyingContract\"", "domain.verifyingContract", value);
+    },
+    salt: function (value) {
+        try {
+            var bytes = bytes_1.arrayify(value);
+            if (bytes.length !== 32) {
+                throw new Error("bad length");
+            }
+            return bytes_1.hexlify(bytes);
+        }
+        catch (error) { }
+        return logger.throwArgumentError("invalid domain value \"salt\"", "domain.salt", value);
+    }
+};
+function getBaseEncoder(type) {
+    // intXX and uintXX
+    {
+        var match = type.match(/^(u?)int(\d*)$/);
+        if (match) {
+            var signed = (match[1] === "");
+            var width = parseInt(match[2] || "256");
+            if (width % 8 !== 0 || width > 256 || (match[2] && match[2] !== String(width))) {
+                logger.throwArgumentError("invalid numeric width", "type", type);
+            }
+            var boundsUpper_1 = MaxUint256.mask(signed ? (width - 1) : width);
+            var boundsLower_1 = signed ? boundsUpper_1.add(One).mul(NegativeOne) : Zero;
+            return function (value) {
+                var v = bignumber_1.BigNumber.from(value);
+                if (v.lt(boundsLower_1) || v.gt(boundsUpper_1)) {
+                    logger.throwArgumentError("value out-of-bounds for " + type, "value", value);
+                }
+                return bytes_1.hexZeroPad(v.toTwos(256).toHexString(), 32);
+            };
+        }
+    }
+    // bytesXX
+    {
+        var match = type.match(/^bytes(\d+)$/);
+        if (match) {
+            var width_1 = parseInt(match[1]);
+            if (width_1 === 0 || width_1 > 32 || match[1] !== String(width_1)) {
+                logger.throwArgumentError("invalid bytes width", "type", type);
+            }
+            return function (value) {
+                var bytes = bytes_1.arrayify(value);
+                if (bytes.length !== width_1) {
+                    logger.throwArgumentError("invalid length for " + type, "value", value);
+                }
+                return hexPadRight(value);
+            };
+        }
+    }
+    switch (type) {
+        case "address": return function (value) {
+            return bytes_1.hexZeroPad(address_1.getAddress(value), 32);
+        };
+        case "bool": return function (value) {
+            return ((!value) ? hexFalse : hexTrue);
+        };
+        case "bytes": return function (value) {
+            return keccak256_1.keccak256(value);
+        };
+        case "string": return function (value) {
+            return id_1.id(value);
+        };
+    }
+    return null;
+}
+function encodeType(name, fields) {
+    return name + "(" + fields.map(function (_a) {
+        var name = _a.name, type = _a.type;
+        return (type + " " + name);
+    }).join(",") + ")";
+}
+var TypedDataEncoder = /** @class */ (function () {
+    function TypedDataEncoder(types) {
+        properties_1.defineReadOnly(this, "types", Object.freeze(properties_1.deepCopy(types)));
+        properties_1.defineReadOnly(this, "_encoderCache", {});
+        properties_1.defineReadOnly(this, "_types", {});
+        // Link struct types to their direct child structs
+        var links = {};
+        // Link structs to structs which contain them as a child
+        var parents = {};
+        // Link all subtypes within a given struct
+        var subtypes = {};
+        Object.keys(types).forEach(function (type) {
+            links[type] = {};
+            parents[type] = [];
+            subtypes[type] = {};
+        });
+        var _loop_1 = function (name_1) {
+            var uniqueNames = {};
+            types[name_1].forEach(function (field) {
+                // Check each field has a unique name
+                if (uniqueNames[field.name]) {
+                    logger.throwArgumentError("duplicate variable name " + JSON.stringify(field.name) + " in " + JSON.stringify(name_1), "types", types);
+                }
+                uniqueNames[field.name] = true;
+                // Get the base type (drop any array specifiers)
+                var baseType = field.type.match(/^([^\x5b]*)(\x5b|$)/)[1];
+                if (baseType === name_1) {
+                    logger.throwArgumentError("circular type reference to " + JSON.stringify(baseType), "types", types);
+                }
+                // Is this a base encoding type?
+                var encoder = getBaseEncoder(baseType);
+                if (encoder) {
+                    return;
+                }
+                if (!parents[baseType]) {
+                    logger.throwArgumentError("unknown type " + JSON.stringify(baseType), "types", types);
+                }
+                // Add linkage
+                parents[baseType].push(name_1);
+                links[name_1][baseType] = true;
+            });
+        };
+        for (var name_1 in types) {
+            _loop_1(name_1);
+        }
+        // Deduce the primary type
+        var primaryTypes = Object.keys(parents).filter(function (n) { return (parents[n].length === 0); });
+        if (primaryTypes.length === 0) {
+            logger.throwArgumentError("missing primary type", "types", types);
+        }
+        else if (primaryTypes.length > 1) {
+            logger.throwArgumentError("ambiguous primary types or unused types: " + primaryTypes.map(function (t) { return (JSON.stringify(t)); }).join(", "), "types", types);
+        }
+        properties_1.defineReadOnly(this, "primaryType", primaryTypes[0]);
+        // Check for circular type references
+        function checkCircular(type, found) {
+            if (found[type]) {
+                logger.throwArgumentError("circular type reference to " + JSON.stringify(type), "types", types);
+            }
+            found[type] = true;
+            Object.keys(links[type]).forEach(function (child) {
+                if (!parents[child]) {
+                    return;
+                }
+                // Recursively check children
+                checkCircular(child, found);
+                // Mark all ancestors as having this decendant
+                Object.keys(found).forEach(function (subtype) {
+                    subtypes[subtype][child] = true;
+                });
+            });
+            delete found[type];
+        }
+        checkCircular(this.primaryType, {});
+        // Compute each fully describe type
+        for (var name_2 in subtypes) {
+            var st = Object.keys(subtypes[name_2]);
+            st.sort();
+            this._types[name_2] = encodeType(name_2, types[name_2]) + st.map(function (t) { return encodeType(t, types[t]); }).join("");
+        }
+    }
+    TypedDataEncoder.prototype.getEncoder = function (type) {
+        var encoder = this._encoderCache[type];
+        if (!encoder) {
+            encoder = this._encoderCache[type] = this._getEncoder(type);
+        }
+        return encoder;
+    };
+    TypedDataEncoder.prototype._getEncoder = function (type) {
+        var _this = this;
+        // Basic encoder type (address, bool, uint256, etc)
+        {
+            var encoder = getBaseEncoder(type);
+            if (encoder) {
+                return encoder;
+            }
+        }
+        // Array
+        var match = type.match(/^(.*)(\x5b(\d*)\x5d)$/);
+        if (match) {
+            var subtype_1 = match[1];
+            var subEncoder_1 = this.getEncoder(subtype_1);
+            var length_1 = parseInt(match[3]);
+            return function (value) {
+                if (length_1 >= 0 && value.length !== length_1) {
+                    logger.throwArgumentError("array length mismatch; expected length ${ arrayLength }", "value", value);
+                }
+                var result = value.map(subEncoder_1);
+                if (_this._types[subtype_1]) {
+                    result = result.map(keccak256_1.keccak256);
+                }
+                return keccak256_1.keccak256(bytes_1.hexConcat(result));
+            };
+        }
+        // Struct
+        var fields = this.types[type];
+        if (fields) {
+            var encodedType_1 = id_1.id(this._types[type]);
+            return function (value) {
+                var values = fields.map(function (_a) {
+                    var name = _a.name, type = _a.type;
+                    var result = _this.getEncoder(type)(value[name]);
+                    if (_this._types[type]) {
+                        return keccak256_1.keccak256(result);
+                    }
+                    return result;
+                });
+                values.unshift(encodedType_1);
+                return bytes_1.hexConcat(values);
+            };
+        }
+        return logger.throwArgumentError("unknown type: " + type, "type", type);
+    };
+    TypedDataEncoder.prototype.encodeType = function (name) {
+        var result = this._types[name];
+        if (!result) {
+            logger.throwArgumentError("unknown type: " + JSON.stringify(name), "name", name);
+        }
+        return result;
+    };
+    TypedDataEncoder.prototype.encodeData = function (type, value) {
+        return this.getEncoder(type)(value);
+    };
+    TypedDataEncoder.prototype.hashStruct = function (name, value) {
+        return keccak256_1.keccak256(this.encodeData(name, value));
+    };
+    TypedDataEncoder.prototype.encode = function (value) {
+        return this.encodeData(this.primaryType, value);
+    };
+    TypedDataEncoder.prototype.hash = function (value) {
+        return this.hashStruct(this.primaryType, value);
+    };
+    TypedDataEncoder.prototype._visit = function (type, value, callback) {
+        var _this = this;
+        // Basic encoder type (address, bool, uint256, etc)
+        {
+            var encoder = getBaseEncoder(type);
+            if (encoder) {
+                return callback(type, value);
+            }
+        }
+        // Array
+        var match = type.match(/^(.*)(\x5b(\d*)\x5d)$/);
+        if (match) {
+            var subtype_2 = match[1];
+            var length_2 = parseInt(match[3]);
+            if (length_2 >= 0 && value.length !== length_2) {
+                logger.throwArgumentError("array length mismatch; expected length ${ arrayLength }", "value", value);
+            }
+            return value.map(function (v) { return _this._visit(subtype_2, v, callback); });
+        }
+        // Struct
+        var fields = this.types[type];
+        if (fields) {
+            return fields.reduce(function (accum, _a) {
+                var name = _a.name, type = _a.type;
+                accum[name] = _this._visit(type, value[name], callback);
+                return accum;
+            }, {});
+        }
+        return logger.throwArgumentError("unknown type: " + type, "type", type);
+    };
+    TypedDataEncoder.prototype.visit = function (value, callback) {
+        return this._visit(this.primaryType, value, callback);
+    };
+    TypedDataEncoder.from = function (types) {
+        return new TypedDataEncoder(types);
+    };
+    TypedDataEncoder.getPrimaryType = function (types) {
+        return TypedDataEncoder.from(types).primaryType;
+    };
+    TypedDataEncoder.hashStruct = function (name, types, value) {
+        return TypedDataEncoder.from(types).hashStruct(name, value);
+    };
+    TypedDataEncoder.hashDomain = function (domain) {
+        var domainFields = [];
+        for (var name_3 in domain) {
+            var type = domainFieldTypes[name_3];
+            if (!type) {
+                logger.throwArgumentError("invalid typed-data domain key: " + JSON.stringify(name_3), "domain", domain);
+            }
+            domainFields.push({ name: name_3, type: type });
+        }
+        domainFields.sort(function (a, b) {
+            return domainFieldNames.indexOf(a.name) - domainFieldNames.indexOf(b.name);
+        });
+        return TypedDataEncoder.hashStruct("EIP712Domain", { EIP712Domain: domainFields }, domain);
+    };
+    TypedDataEncoder.encode = function (domain, types, value) {
+        return bytes_1.hexConcat([
+            "0x1901",
+            TypedDataEncoder.hashDomain(domain),
+            TypedDataEncoder.from(types).hash(value)
+        ]);
+    };
+    TypedDataEncoder.hash = function (domain, types, value) {
+        return keccak256_1.keccak256(TypedDataEncoder.encode(domain, types, value));
+    };
+    // Replaces all address types with ENS names with their looked up address
+    TypedDataEncoder.resolveNames = function (domain, types, value, resolveName) {
+        return __awaiter(this, void 0, void 0, function () {
+            var ensCache, encoder, _a, _b, _i, name_4, _c, _d;
+            return __generator(this, function (_e) {
+                switch (_e.label) {
+                    case 0:
+                        // Make a copy to isolate it from the object passed in
+                        domain = properties_1.shallowCopy(domain);
+                        ensCache = {};
+                        // Do we need to look up the domain's verifyingContract?
+                        if (domain.verifyingContract && !bytes_1.isHexString(domain.verifyingContract, 20)) {
+                            ensCache[domain.verifyingContract] = "0x";
+                        }
+                        encoder = TypedDataEncoder.from(types);
+                        // Get a list of all the addresses
+                        encoder.visit(value, function (type, value) {
+                            if (type === "address" && !bytes_1.isHexString(value, 20)) {
+                                ensCache[value] = "0x";
+                            }
+                            return value;
+                        });
+                        _a = [];
+                        for (_b in ensCache)
+                            _a.push(_b);
+                        _i = 0;
+                        _e.label = 1;
+                    case 1:
+                        if (!(_i < _a.length)) return [3 /*break*/, 4];
+                        name_4 = _a[_i];
+                        _c = ensCache;
+                        _d = name_4;
+                        return [4 /*yield*/, resolveName(name_4)];
+                    case 2:
+                        _c[_d] = _e.sent();
+                        _e.label = 3;
+                    case 3:
+                        _i++;
+                        return [3 /*break*/, 1];
+                    case 4:
+                        // Replace the domain verifyingContract if needed
+                        if (domain.verifyingContract && ensCache[domain.verifyingContract]) {
+                            domain.verifyingContract = ensCache[domain.verifyingContract];
+                        }
+                        // Replace all ENS names with their address
+                        value = encoder.visit(value, function (type, value) {
+                            if (type === "address" && ensCache[value]) {
+                                return ensCache[value];
+                            }
+                            return value;
+                        });
+                        return [2 /*return*/, { domain: domain, value: value }];
+                }
+            });
+        });
+    };
+    TypedDataEncoder.getPayload = function (domain, types, value) {
+        // Validate the domain fields
+        TypedDataEncoder.hashDomain(domain);
+        // Derive the EIP712Domain Struct reference type
+        var domainValues = {};
+        var domainTypes = [];
+        domainFieldNames.forEach(function (name) {
+            var value = domain[name];
+            if (value == null) {
+                return;
+            }
+            domainValues[name] = domainChecks[name](value);
+            domainTypes.push({ name: name, type: domainFieldTypes[name] });
+        });
+        var encoder = TypedDataEncoder.from(types);
+        var typesWithDomain = properties_1.shallowCopy(types);
+        if (typesWithDomain.EIP712Domain) {
+            typesWithDomain.EIP712Domain = domainTypes;
+        }
+        // Validate the data structures and types
+        encoder.encode(value);
+        return {
+            types: typesWithDomain,
+            domain: domainValues,
+            primaryType: encoder.primaryType,
+            message: encoder.visit(value, function (type, value) {
+                // bytes
+                if (type.match(/^bytes(\d*)/)) {
+                    return bytes_1.hexlify(bytes_1.arrayify(value));
+                }
+                // uint or int
+                if (type.match(/^u?int/)) {
+                    var prefix = "";
+                    var v = bignumber_1.BigNumber.from(value);
+                    if (v.isNegative()) {
+                        prefix = "-";
+                        v = v.mul(-1);
+                    }
+                    return prefix + bytes_1.hexValue(v.toHexString());
+                }
+                switch (type) {
+                    case "address":
+                        return value.toLowerCase();
+                    case "bool":
+                        return !!value;
+                    case "string":
+                        if (typeof (value) !== "string") {
+                            logger.throwArgumentError("invalid string", "value", value);
+                        }
+                        return value;
+                }
+                return logger.throwArgumentError("unsupported type", "type", type);
+            })
+        };
+    };
+    return TypedDataEncoder;
+}());
+exports.TypedDataEncoder = TypedDataEncoder;
+//# sourceMappingURL=typed-data.js.map
@@ -0,0 +1,41 @@
+{
+  "author": "Richard Moore <me@ricmoo.com>",
+  "dependencies": {
+    "@ethersproject/abstract-signer": "^5.0.6",
+    "@ethersproject/address": "^5.0.5",
+    "@ethersproject/bignumber": "^5.0.8",
+    "@ethersproject/bytes": "^5.0.4",
+    "@ethersproject/keccak256": "^5.0.3",
+    "@ethersproject/logger": "^5.0.5",
+    "@ethersproject/properties": "^5.0.4",
+    "@ethersproject/strings": "^5.0.4"
+  },
+  "description": "Hash utility functions for Ethereum.",
+  "ethereum": "donations.ethers.eth",
+  "gitHead": "86146650d83865d83b10867e9592923eada5d7cc",
+  "keywords": [
+    "Ethereum",
+    "ethers"
+  ],
+  "license": "MIT",
+  "main": "./lib/index.js",
+  "module": "./lib.esm/index.js",
+  "name": "@ethersproject/hash",
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/ethers-io/ethers.js.git"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "tarballHash": "0xd3ced44284f7527cca27da2835c7eaeb117480dc6d459415ece6a672679cd538",
+  "types": "./lib/index.d.ts",
+  "version": "5.0.6"
+
+,"_resolved": "https://registry.npmjs.org/@ethersproject/hash/-/hash-5.0.6.tgz"
+,"_integrity": "sha512-Gvh57v6BWhwnud6l7tMfQm32PRQ2DYx2WaAAQmAxAfYvmzUkpQCBstnGeNMXIL8/2wdkvcB2u+WZRWaZtsFuUQ=="
+,"_from": "@ethersproject/hash@>=5.0.0-beta.128"
+}