"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.ArrayCoder = exports.unpack = exports.pack = void 0;
var logger_1 = require("@ethersproject/logger");
var _version_1 = require("../_version");
var logger = new logger_1.Logger(_version_1.version);
var abstract_coder_1 = require("./abstract-coder");
var anonymous_1 = require("./anonymous");
function pack(writer, coders, values) {
var arrayValues = null;
if (Array.isArray(values)) {
arrayValues = values;
}
else if (values && typeof (values) === "object") {
var unique_1 = {};
arrayValues = coders.map(function (coder) {
var name = coder.localName;
if (!name) {
logger.throwError("cannot encode object for signature with missing names", logger_1.Logger.errors.INVALID_ARGUMENT, {
argument: "values",
coder: coder,
value: values
});
}
if (unique_1[name]) {
logger.throwError("cannot encode object for signature with duplicate names", logger_1.Logger.errors.INVALID_ARGUMENT, {
argument: "values",
coder: coder,
value: values
});
}
unique_1[name] = true;
return values[name];
});
}
else {
logger.throwArgumentError("invalid tuple value", "tuple", values);
}
if (coders.length !== arrayValues.length) {
logger.throwArgumentError("types/value length mismatch", "tuple", values);
}
var staticWriter = new abstract_coder_1.Writer(writer.wordSize);
var dynamicWriter = new abstract_coder_1.Writer(writer.wordSize);
var updateFuncs = [];
coders.forEach(function (coder, index) {
var value = arrayValues[index];
if (coder.dynamic) {
// Get current dynamic offset (for the future pointer)
var dynamicOffset_1 = dynamicWriter.length;
// Encode the dynamic value into the dynamicWriter
coder.encode(dynamicWriter, value);
// Prepare to populate the correct offset once we are done
var updateFunc_1 = staticWriter.writeUpdatableValue();
updateFuncs.push(function (baseOffset) {
updateFunc_1(baseOffset + dynamicOffset_1);
});
}
else {
coder.encode(staticWriter, value);
}
});
// Backfill all the dynamic offsets, now that we know the static length
updateFuncs.forEach(function (func) { func(staticWriter.length); });
var length = writer.appendWriter(staticWriter);
length += writer.appendWriter(dynamicWriter);
return length;
}
exports.pack = pack;
function unpack(reader, coders) {
var values = [];
// A reader anchored to this base
var baseReader = reader.subReader(0);
coders.forEach(function (coder) {
var value = null;
if (coder.dynamic) {
var offset = reader.readValue();
var offsetReader = baseReader.subReader(offset.toNumber());
try {
value = coder.decode(offsetReader);
}
catch (error) {
// Cannot recover from this
if (error.code === logger_1.Logger.errors.BUFFER_OVERRUN) {
throw error;
}
value = error;
value.baseType = coder.name;
value.name = coder.localName;
value.type = coder.type;
}
}
else {
try {
value = coder.decode(reader);
}
catch (error) {
// Cannot recover from this
if (error.code === logger_1.Logger.errors.BUFFER_OVERRUN) {
throw error;
}
value = error;
value.baseType = coder.name;
value.name = coder.localName;
value.type = coder.type;
}
}
if (value != undefined) {
values.push(value);
}
});
// We only output named properties for uniquely named coders
var uniqueNames = coders.reduce(function (accum, coder) {
var name = coder.localName;
if (name) {
if (!accum[name]) {
accum[name] = 0;
}
accum[name]++;
}
return accum;
}, {});
// Add any named parameters (i.e. tuples)
coders.forEach(function (coder, index) {
var name = coder.localName;
if (!name || uniqueNames[name] !== 1) {
return;
}
if (name === "length") {
name = "_length";
}
if (values[name] != null) {
return;
}
var value = values[index];
if (value instanceof Error) {
Object.defineProperty(values, name, {
enumerable: true,
get: function () { throw value; }
});
}
else {
values[name] = value;
}
});
var _loop_1 = function (i) {
var value = values[i];
if (value instanceof Error) {
Object.defineProperty(values, i, {
enumerable: true,
get: function () { throw value; }
});
}
};
for (var i = 0; i < values.length; i++) {
_loop_1(i);
}
return Object.freeze(values);
}
exports.unpack = unpack;
var ArrayCoder = /** @class */ (function (_super) {
__extends(ArrayCoder, _super);
function ArrayCoder(coder, length, localName) {
var _this = this;
var type = (coder.type + "[" + (length >= 0 ? length : "") + "]");
var dynamic = (length === -1 || coder.dynamic);
_this = _super.call(this, "array", type, localName, dynamic) || this;
_this.coder = coder;
_this.length = length;
return _this;
}
ArrayCoder.prototype.defaultValue = function () {
// Verifies the child coder is valid (even if the array is dynamic or 0-length)
var defaultChild = this.coder.defaultValue();
var result = [];
for (var i = 0; i < this.length; i++) {
result.push(defaultChild);
}
return result;
};
ArrayCoder.prototype.encode = function (writer, value) {
if (!Array.isArray(value)) {
this._throwError("expected array value", value);
}
var count = this.length;
if (count === -1) {
count = value.length;
writer.writeValue(value.length);
}
logger.checkArgumentCount(value.length, count, "coder array" + (this.localName ? (" " + this.localName) : ""));
var coders = [];
for (var i = 0; i < value.length; i++) {
coders.push(this.coder);
}
return pack(writer, coders, value);
};
ArrayCoder.prototype.decode = function (reader) {
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++) {
coders.push(new anonymous_1.AnonymousCoder(this.coder));
}
return reader.coerce(this.name, unpack(reader, coders));
};
return ArrayCoder;
}(abstract_coder_1.Coder));
exports.ArrayCoder = ArrayCoder;
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