92 lines
3.1 KiB
JavaScript
92 lines
3.1 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var bignumber_1 = require("@ethersproject/bignumber");
|
|
var bytes_1 = require("@ethersproject/bytes");
|
|
var keccak256_1 = require("@ethersproject/keccak256");
|
|
var sha2_1 = require("@ethersproject/sha2");
|
|
var strings_1 = require("@ethersproject/strings");
|
|
var regexBytes = new RegExp("^bytes([0-9]+)$");
|
|
var regexNumber = new RegExp("^(u?int)([0-9]*)$");
|
|
var regexArray = new RegExp("^(.*)\\[([0-9]*)\\]$");
|
|
var Zeros = "0000000000000000000000000000000000000000000000000000000000000000";
|
|
function _pack(type, value, isArray) {
|
|
switch (type) {
|
|
case "address":
|
|
if (isArray) {
|
|
return bytes_1.zeroPad(value, 32);
|
|
}
|
|
return bytes_1.arrayify(value);
|
|
case "string":
|
|
return strings_1.toUtf8Bytes(value);
|
|
case "bytes":
|
|
return bytes_1.arrayify(value);
|
|
case "bool":
|
|
value = (value ? "0x01" : "0x00");
|
|
if (isArray) {
|
|
return bytes_1.zeroPad(value, 32);
|
|
}
|
|
return bytes_1.arrayify(value);
|
|
}
|
|
var match = type.match(regexNumber);
|
|
if (match) {
|
|
//let signed = (match[1] === "int")
|
|
var size = parseInt(match[2] || "256");
|
|
if ((size % 8 != 0) || size === 0 || size > 256) {
|
|
throw new Error("invalid number type - " + type);
|
|
}
|
|
if (isArray) {
|
|
size = 256;
|
|
}
|
|
value = bignumber_1.BigNumber.from(value).toTwos(size);
|
|
return bytes_1.zeroPad(value, size / 8);
|
|
}
|
|
match = type.match(regexBytes);
|
|
if (match) {
|
|
var size = parseInt(match[1]);
|
|
if (String(size) != match[1] || size === 0 || size > 32) {
|
|
throw new Error("invalid number type - " + type);
|
|
}
|
|
if (bytes_1.arrayify(value).byteLength !== size) {
|
|
throw new Error("invalid value for " + type);
|
|
}
|
|
if (isArray) {
|
|
return bytes_1.arrayify((value + Zeros).substring(0, 66));
|
|
}
|
|
return value;
|
|
}
|
|
match = type.match(regexArray);
|
|
if (match && Array.isArray(value)) {
|
|
var baseType_1 = match[1];
|
|
var count = parseInt(match[2] || String(value.length));
|
|
if (count != value.length) {
|
|
throw new Error("invalid value for " + type);
|
|
}
|
|
var result_1 = [];
|
|
value.forEach(function (value) {
|
|
result_1.push(_pack(baseType_1, value, true));
|
|
});
|
|
return bytes_1.concat(result_1);
|
|
}
|
|
throw new Error("unknown type - " + type);
|
|
}
|
|
// @TODO: Array Enum
|
|
function pack(types, values) {
|
|
if (types.length != values.length) {
|
|
throw new Error("type/value count mismatch");
|
|
}
|
|
var tight = [];
|
|
types.forEach(function (type, index) {
|
|
tight.push(_pack(type, values[index]));
|
|
});
|
|
return bytes_1.hexlify(bytes_1.concat(tight));
|
|
}
|
|
exports.pack = pack;
|
|
function keccak256(types, values) {
|
|
return keccak256_1.keccak256(pack(types, values));
|
|
}
|
|
exports.keccak256 = keccak256;
|
|
function sha256(types, values) {
|
|
return sha2_1.sha256(pack(types, values));
|
|
}
|
|
exports.sha256 = sha256;
|