610 lines
21 KiB
JavaScript
610 lines
21 KiB
JavaScript
"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
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result["default"] = mod;
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var bignumber_1 = require("@ethersproject/bignumber");
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var errors = __importStar(require("@ethersproject/errors"));
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var properties_1 = require("@ethersproject/properties");
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;
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var _constructorGuard = {};
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// @TODO: Make sure that children of an indexed tuple are marked with a null indexed
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function parseParamType(param, allowIndexed) {
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var originalParam = param;
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function throwError(i) {
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throw new Error("unexpected character '" + originalParam[i] + "' at position " + i + " in '" + originalParam + "'");
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}
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param = param.replace(/\s/g, " ");
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function newNode(parent) {
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var node = { type: "", name: "", parent: parent, state: { allowType: true } };
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if (allowIndexed) {
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node.indexed = false;
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}
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return node;
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}
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var parent = { type: "", name: "", state: { allowType: true } };
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var node = parent;
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for (var i = 0; i < param.length; i++) {
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var c = param[i];
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switch (c) {
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case "(":
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if (!node.state.allowParams) {
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throwError(i);
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}
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node.state.allowType = false;
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node.type = verifyType(node.type);
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node.components = [newNode(node)];
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node = node.components[0];
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break;
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case ")":
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delete node.state;
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if (allowIndexed) {
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if (node.name === "indexed") {
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node.indexed = true;
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node.name = "";
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}
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}
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node.type = verifyType(node.type);
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var child = node;
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node = node.parent;
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if (!node) {
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throwError(i);
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}
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delete child.parent;
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node.state.allowParams = false;
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node.state.allowName = true;
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node.state.allowArray = true;
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break;
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case ",":
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delete node.state;
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if (allowIndexed) {
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if (node.name === "indexed") {
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node.indexed = true;
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node.name = "";
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}
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}
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node.type = verifyType(node.type);
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var sibling = newNode(node.parent);
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//{ type: "", name: "", parent: node.parent, state: { allowType: true } };
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node.parent.components.push(sibling);
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delete node.parent;
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node = sibling;
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break;
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// Hit a space...
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case " ":
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// If reading type, the type is done and may read a param or name
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if (node.state.allowType) {
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if (node.type !== "") {
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node.type = verifyType(node.type);
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delete node.state.allowType;
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node.state.allowName = true;
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node.state.allowParams = true;
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}
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}
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// If reading name, the name is done
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if (node.state.allowName) {
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if (node.name !== "") {
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if (allowIndexed) {
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if (node.name === "indexed") {
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if (node.indexed) {
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throwError(i);
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}
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node.indexed = true;
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node.name = "";
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}
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}
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else {
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node.state.allowName = false;
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}
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}
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}
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break;
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case "[":
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if (!node.state.allowArray) {
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throwError(i);
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}
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node.type += c;
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node.state.allowArray = false;
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node.state.allowName = false;
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node.state.readArray = true;
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break;
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case "]":
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if (!node.state.readArray) {
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throwError(i);
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}
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node.type += c;
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node.state.readArray = false;
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node.state.allowArray = true;
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node.state.allowName = true;
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break;
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default:
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if (node.state.allowType) {
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node.type += c;
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node.state.allowParams = true;
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node.state.allowArray = true;
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}
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else if (node.state.allowName) {
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node.name += c;
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delete node.state.allowArray;
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}
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else if (node.state.readArray) {
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node.type += c;
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}
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else {
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throwError(i);
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}
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}
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}
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if (node.parent) {
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throw new Error("unexpected eof");
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}
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delete parent.state;
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if (allowIndexed) {
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if (node.name === "indexed") {
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if (node.indexed) {
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throwError(originalParam.length - 7);
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}
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node.indexed = true;
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node.name = "";
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}
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}
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parent.type = verifyType(parent.type);
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return parent;
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}
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function populate(object, params) {
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for (var key in params) {
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properties_1.defineReadOnly(object, key, params[key]);
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}
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}
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var paramTypeArray = new RegExp(/^(.*)\[([0-9]*)\]$/);
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var ParamType = /** @class */ (function () {
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function ParamType(constructorGuard, params) {
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if (constructorGuard !== _constructorGuard) {
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throw new Error("use fromString");
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}
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populate(this, params);
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var match = this.type.match(paramTypeArray);
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if (match) {
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populate(this, {
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arrayLength: parseInt(match[2] || "-1"),
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arrayChildren: ParamType.fromObject({
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type: match[1],
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components: this.components
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}),
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baseType: "array"
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});
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}
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else {
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populate(this, {
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arrayLength: null,
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arrayChildren: null,
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baseType: ((this.components != null) ? "tuple" : this.type)
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});
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}
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}
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// Format the parameter fragment
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// - non-expanded: "(uint256,address)"
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// - expanded: "tuple(uint256 foo, addres bar) indexed baz"
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ParamType.prototype.format = function (expanded) {
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var result = "";
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// Array
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if (this.baseType === "array") {
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result += this.arrayChildren.format(expanded);
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result += "[" + (this.arrayLength < 0 ? "" : String(this.arrayLength)) + "]";
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}
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else {
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if (this.baseType === "tuple") {
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if (expanded) {
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result += this.type;
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}
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result += "(" + this.components.map(function (c) { return c.format(expanded); }).join(expanded ? ", " : ",") + ")";
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}
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else {
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result += this.type;
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}
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}
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if (expanded) {
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if (this.indexed === true) {
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result += " indexed";
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}
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if (this.name) {
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result += " " + this.name;
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}
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}
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return result;
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};
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ParamType.from = function (value, allowIndexed) {
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if (typeof (value) === "string") {
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return ParamType.fromString(value, allowIndexed);
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}
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return ParamType.fromObject(value);
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};
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ParamType.fromObject = function (value) {
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if (properties_1.isNamedInstance(ParamType, value)) {
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return value;
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}
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return new ParamType(_constructorGuard, {
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name: (value.name || null),
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type: verifyType(value.type),
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indexed: ((value.indexed == null) ? null : !!value.indexed),
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components: (value.components ? value.components.map(ParamType.fromObject) : null)
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});
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};
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ParamType.fromString = function (value, allowIndexed) {
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function ParamTypify(node) {
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return ParamType.fromObject({
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name: node.name,
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type: node.type,
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indexed: node.indexed,
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components: node.components
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});
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}
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return ParamTypify(parseParamType(value, !!allowIndexed));
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};
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return ParamType;
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}());
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exports.ParamType = ParamType;
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;
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function parseParams(value, allowIndex) {
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return splitNesting(value).map(function (param) { return ParamType.fromString(param, allowIndex); });
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}
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var Fragment = /** @class */ (function () {
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function Fragment(constructorGuard, params) {
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if (constructorGuard !== _constructorGuard) {
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throw new Error("use a static from method");
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}
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populate(this, params);
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}
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// @TOOD: move logic to sub-classes; make this abstract
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Fragment.prototype.format = function (expanded) {
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var result = "";
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if (this.type === "constructor") {
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result += "constructor";
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}
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else {
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if (expanded) {
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result += this.type + " ";
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}
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result += this.name;
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}
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result += "(" + this.inputs.map(function (i) { return i.format(expanded); }).join(expanded ? ", " : ",") + ") ";
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// @TODO: Handle returns, modifiers, etc.
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if (expanded) {
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result += "public ";
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if (this.mutabilityState) {
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result += this.mutabilityState + " ";
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}
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else if (this.constant) {
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result += "view ";
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}
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if (this.outputs && this.outputs.length) {
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result += "(" + this.outputs.map(function (i) { return i.format(expanded); }).join(", ") + ") ";
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}
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}
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return result.trim();
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};
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Fragment.from = function (value) {
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if (typeof (value) === "string") {
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return Fragment.fromString(value);
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}
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return Fragment.fromObject(value);
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};
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Fragment.fromObject = function (value) {
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if (properties_1.isNamedInstance(Fragment, value)) {
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return value;
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}
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if (value.type === "function") {
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return FunctionFragment.fromObject(value);
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}
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else if (value.type === "event") {
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return EventFragment.fromObject(value);
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}
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else if (value.type === "constructor") {
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return ConstructorFragment.fromObject(value);
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}
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else if (value.type === "fallback") {
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// @TODO:
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return null;
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}
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return errors.throwError("invalid fragment object", errors.INVALID_ARGUMENT, {
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argument: "value",
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value: value
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});
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};
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Fragment.fromString = function (value) {
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// Make sure the "returns" is surrounded by a space and all whitespace is exactly one space
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value = value.replace(/\s/g, " ");
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value = value.replace(/\(/g, " (").replace(/\)/g, ") ").replace(/\s+/g, " ");
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value = value.trim();
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if (value.split(" ")[0] === "event") {
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return EventFragment.fromString(value.substring(5).trim());
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}
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else if (value.split(" ")[0] === "function") {
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return FunctionFragment.fromString(value.substring(8).trim());
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}
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else if (value.split("(")[0].trim() === "constructor") {
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return ConstructorFragment.fromString(value.trim());
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}
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throw new Error("unknown fragment");
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};
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return Fragment;
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}());
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exports.Fragment = Fragment;
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var EventFragment = /** @class */ (function (_super) {
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__extends(EventFragment, _super);
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function EventFragment() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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EventFragment.from = function (value) {
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if (typeof (value) === "string") {
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return EventFragment.fromString(value);
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}
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return EventFragment.fromObject(value);
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};
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EventFragment.fromObject = function (value) {
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if (properties_1.isNamedInstance(EventFragment, value)) {
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return value;
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}
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if (value.type !== "event") {
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throw new Error("invalid event object - " + value.type);
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}
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return new EventFragment(_constructorGuard, {
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name: verifyIdentifier(value.name),
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anonymous: value.anonymous,
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inputs: (value.inputs ? value.inputs.map(ParamType.fromObject) : []),
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type: "event"
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});
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};
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EventFragment.fromString = function (value) {
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var match = value.match(regexParen);
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if (!match) {
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throw new Error("invalid event: " + value);
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}
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var anonymous = false;
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match[3].split(" ").forEach(function (modifier) {
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switch (modifier.trim()) {
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case "anonymous":
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anonymous = true;
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break;
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case "":
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break;
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default:
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errors.warn("unknown modifier: " + modifier);
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}
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});
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return EventFragment.fromObject({
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name: match[1].trim(),
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anonymous: anonymous,
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inputs: parseParams(match[2], true),
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type: "event"
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});
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};
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return EventFragment;
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}(Fragment));
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exports.EventFragment = EventFragment;
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function parseGas(value, params) {
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params.gas = null;
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var comps = value.split("@");
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if (comps.length !== 1) {
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if (comps.length > 2) {
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throw new Error("invalid signature");
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}
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if (!comps[1].match(/^[0-9]+$/)) {
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throw new Error("invalid signature gas");
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}
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params.gas = bignumber_1.BigNumber.from(comps[1]);
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return comps[0];
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}
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return value;
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}
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function parseModifiers(value, params) {
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params.constant = false;
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params.payable = false;
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// @TODO: Should this be initialized to "nonpayable"?
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params.stateMutability = null;
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value.split(" ").forEach(function (modifier) {
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switch (modifier.trim()) {
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case "constant":
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params.constant = true;
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break;
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case "payable":
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params.payable = true;
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params.stateMutability = "payable";
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break;
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case "pure":
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params.constant = true;
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params.stateMutability = "pure";
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break;
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case "view":
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params.constant = true;
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params.stateMutability = "view";
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break;
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case "external":
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case "public":
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case "":
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break;
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default:
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console.log("unknown modifier: " + modifier);
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}
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});
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}
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var ConstructorFragment = /** @class */ (function (_super) {
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__extends(ConstructorFragment, _super);
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function ConstructorFragment() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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ConstructorFragment.from = function (value) {
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if (typeof (value) === "string") {
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return ConstructorFragment.fromString(value);
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}
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return ConstructorFragment.fromObject(value);
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};
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ConstructorFragment.fromObject = function (value) {
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if (properties_1.isNamedInstance(ConstructorFragment, value)) {
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return value;
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}
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if (value.type !== "constructor") {
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throw new Error("invalid constructor object - " + value.type);
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}
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return new ConstructorFragment(_constructorGuard, {
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type: value.type,
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inputs: (value.inputs ? value.inputs.map(ParamType.fromObject) : []),
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payable: ((value.payable == null) ? true : !!value.payable),
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gas: (value.gas ? bignumber_1.BigNumber.from(value.gas) : null)
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});
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};
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ConstructorFragment.fromString = function (value) {
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var params = { type: "constructor" };
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value = parseGas(value, params);
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var parens = value.match(regexParen);
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if (!parens) {
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throw new Error("invalid constructor: " + value);
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}
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if (parens[1].trim() !== "constructor") {
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throw new Error("invalid constructor");
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}
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params.inputs = parseParams(parens[2].trim(), false);
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parseModifiers(parens[3].trim(), params);
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return ConstructorFragment.fromObject(params);
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};
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return ConstructorFragment;
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}(Fragment));
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exports.ConstructorFragment = ConstructorFragment;
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var FunctionFragment = /** @class */ (function (_super) {
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__extends(FunctionFragment, _super);
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function FunctionFragment() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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FunctionFragment.from = function (value) {
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if (typeof (value) === "string") {
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return FunctionFragment.fromString(value);
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}
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return FunctionFragment.fromObject(value);
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};
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FunctionFragment.fromObject = function (value) {
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if (properties_1.isNamedInstance(FunctionFragment, value)) {
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return value;
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}
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if (value.type !== "function") {
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throw new Error("invalid function object - " + value.type);
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}
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return new FunctionFragment(_constructorGuard, {
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type: value.type,
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name: verifyIdentifier(value.name),
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constant: !!value.constant,
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inputs: (value.inputs ? value.inputs.map(ParamType.fromObject) : []),
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outputs: (value.outputs ? value.outputs.map(ParamType.fromObject) : []),
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payable: ((value.payable == null) ? true : !!value.payable),
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stateMutability: ((value.stateMutability != null) ? verifyString(value.stateMutability) : null),
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gas: (value.gas ? bignumber_1.BigNumber.from(value.gas) : null)
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});
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};
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FunctionFragment.fromString = function (value) {
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var params = { type: "function" };
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value = parseGas(value, params);
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var comps = value.split(" returns ");
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if (comps.length > 2) {
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throw new Error("invalid function");
|
|
}
|
|
var parens = comps[0].match(regexParen);
|
|
if (!parens) {
|
|
throw new Error("invalid signature");
|
|
}
|
|
params.name = parens[1].trim();
|
|
if (!params.name.match(regexIdentifier)) {
|
|
throw new Error("invalid identifier: '" + params.name + "'");
|
|
}
|
|
params.inputs = parseParams(parens[2], false);
|
|
parseModifiers(parens[3].trim(), params);
|
|
// We have outputs
|
|
if (comps.length > 1) {
|
|
var returns = comps[1].match(regexParen);
|
|
if (returns[1].trim() != "" || returns[3].trim() != "") {
|
|
throw new Error("unexpected tokens");
|
|
}
|
|
params.outputs = parseParams(returns[2], false);
|
|
}
|
|
else {
|
|
params.outputs = [];
|
|
}
|
|
return FunctionFragment.fromObject(params);
|
|
};
|
|
return FunctionFragment;
|
|
}(ConstructorFragment));
|
|
exports.FunctionFragment = FunctionFragment;
|
|
//export class ErrorFragment extends Fragment {
|
|
//}
|
|
//export class StructFragment extends Fragment {
|
|
//}
|
|
function verifyString(value) {
|
|
if (typeof (value) !== "string") {
|
|
throw new Error("requires a string");
|
|
}
|
|
return value;
|
|
}
|
|
function verifyType(type) {
|
|
// These need to be transformed to their full description
|
|
if (type.match(/^uint($|[^1-9])/)) {
|
|
type = "uint256" + type.substring(4);
|
|
}
|
|
else if (type.match(/^int($|[^1-9])/)) {
|
|
type = "int256" + type.substring(3);
|
|
}
|
|
// @TODO: more verification
|
|
return type;
|
|
}
|
|
var regexIdentifier = new RegExp("^[A-Za-z_][A-Za-z0-9_]*$");
|
|
function verifyIdentifier(value) {
|
|
if (!value || !value.match(regexIdentifier)) {
|
|
throw new Error("invalid identifier: '" + value + "'");
|
|
}
|
|
return value;
|
|
}
|
|
var regexParen = new RegExp("^([^)(]*)\\((.*)\\)([^)(]*)$");
|
|
function splitNesting(value) {
|
|
value = value.trim();
|
|
var result = [];
|
|
var accum = "";
|
|
var depth = 0;
|
|
for (var offset = 0; offset < value.length; offset++) {
|
|
var c = value[offset];
|
|
if (c === "," && depth === 0) {
|
|
result.push(accum);
|
|
accum = "";
|
|
}
|
|
else {
|
|
accum += c;
|
|
if (c === "(") {
|
|
depth++;
|
|
}
|
|
else if (c === ")") {
|
|
depth--;
|
|
if (depth === -1) {
|
|
throw new Error("unbalanced parenthsis");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (accum) {
|
|
result.push(accum);
|
|
}
|
|
return result;
|
|
}
|