"use strict"; /** * About frgaments... * * @_subsection api/abi/abi-coder:Fragments */ Object.defineProperty(exports, "__esModule", { value: true }); exports.StructFragment = exports.FunctionFragment = exports.ConstructorFragment = exports.EventFragment = exports.ErrorFragment = exports.NamedFragment = exports.Fragment = exports.ParamType = void 0; const index_js_1 = require("../utils/index.js"); const index_js_2 = require("../hash/index.js"); ; // [ "a", "b" ] => { "a": 1, "b": 1 } function setify(items) { const result = new Set(); items.forEach((k) => result.add(k)); return Object.freeze(result); } // Visibility Keywords const _kwVisib = "constant external internal payable private public pure view"; const KwVisib = setify(_kwVisib.split(" ")); const _kwTypes = "constructor error event function struct"; const KwTypes = setify(_kwTypes.split(" ")); const _kwModifiers = "calldata memory storage payable indexed"; const KwModifiers = setify(_kwModifiers.split(" ")); const _kwOther = "tuple returns"; // All Keywords const _keywords = [_kwTypes, _kwModifiers, _kwOther, _kwVisib].join(" "); const Keywords = setify(_keywords.split(" ")); // Single character tokens const SimpleTokens = { "(": "OPEN_PAREN", ")": "CLOSE_PAREN", "[": "OPEN_BRACKET", "]": "CLOSE_BRACKET", ",": "COMMA", "@": "AT" }; // Parser regexes to consume the next token const regexWhitespace = new RegExp("^(\\s*)"); const regexNumber = new RegExp("^([0-9]+)"); const regexIdentifier = new RegExp("^([a-zA-Z$_][a-zA-Z0-9$_]*)"); const regexType = new RegExp("^(address|bool|bytes([0-9]*)|string|u?int([0-9]*))"); class TokenString { #offset; #tokens; get offset() { return this.#offset; } get length() { return this.#tokens.length - this.#offset; } constructor(tokens) { this.#offset = 0; this.#tokens = tokens.slice(); } clone() { return new TokenString(this.#tokens); } reset() { this.#offset = 0; } #subTokenString(from = 0, to = 0) { return new TokenString(this.#tokens.slice(from, to).map((t) => { return Object.freeze(Object.assign({}, t, { match: (t.match - from), linkBack: (t.linkBack - from), linkNext: (t.linkNext - from), })); return t; })); } // Pops and returns the value of the next token, if it is a keyword in allowed; throws if out of tokens popKeyword(allowed) { const top = this.peek(); if (top.type !== "KEYWORD" || !allowed.has(top.text)) { throw new Error(`expected keyword ${top.text}`); } return this.pop().text; } // Pops and returns the value of the next token if it is `type`; throws if out of tokens popType(type) { if (this.peek().type !== type) { throw new Error(`expected ${type}; got ${JSON.stringify(this.peek())}`); } return this.pop().text; } // Pops and returns a "(" TOKENS ")" popParen() { const top = this.peek(); if (top.type !== "OPEN_PAREN") { throw new Error("bad start"); } const result = this.#subTokenString(this.#offset + 1, top.match + 1); this.#offset = top.match + 1; return result; } // Pops and returns the items within "(" ITEM1 "," ITEM2 "," ... ")" popParams() { const top = this.peek(); if (top.type !== "OPEN_PAREN") { throw new Error("bad start"); } const result = []; while (this.#offset < top.match - 1) { const link = this.peek().linkNext; result.push(this.#subTokenString(this.#offset + 1, link)); this.#offset = link; } this.#offset = top.match + 1; return result; } // Returns the top Token, throwing if out of tokens peek() { if (this.#offset >= this.#tokens.length) { throw new Error("out-of-bounds"); } return this.#tokens[this.#offset]; } // Returns the next value, if it is a keyword in `allowed` peekKeyword(allowed) { const top = this.peekType("KEYWORD"); return (top != null && allowed.has(top)) ? top : null; } // Returns the value of the next token if it is `type` peekType(type) { if (this.length === 0) { return null; } const top = this.peek(); return (top.type === type) ? top.text : null; } // Returns the next token; throws if out of tokens pop() { const result = this.peek(); this.#offset++; return result; } toString() { const tokens = []; for (let i = this.#offset; i < this.#tokens.length; i++) { const token = this.#tokens[i]; tokens.push(`${token.type}:${token.text}`); } return ``; } } function lex(text) { const tokens = []; const throwError = (message) => { const token = (offset < text.length) ? JSON.stringify(text[offset]) : "$EOI"; throw new Error(`invalid token ${token} at ${offset}: ${message}`); }; let brackets = []; let commas = []; let offset = 0; while (offset < text.length) { // Strip off any leading whitespace let cur = text.substring(offset); let match = cur.match(regexWhitespace); if (match) { offset += match[1].length; cur = text.substring(offset); } const token = { depth: brackets.length, linkBack: -1, linkNext: -1, match: -1, type: "", text: "", offset, value: -1 }; tokens.push(token); let type = (SimpleTokens[cur[0]] || ""); if (type) { token.type = type; token.text = cur[0]; offset++; if (type === "OPEN_PAREN") { brackets.push(tokens.length - 1); commas.push(tokens.length - 1); } else if (type == "CLOSE_PAREN") { if (brackets.length === 0) { throwError("no matching open bracket"); } token.match = brackets.pop(); (tokens[token.match]).match = tokens.length - 1; token.depth--; token.linkBack = commas.pop(); (tokens[token.linkBack]).linkNext = tokens.length - 1; } else if (type === "COMMA") { token.linkBack = commas.pop(); (tokens[token.linkBack]).linkNext = tokens.length - 1; commas.push(tokens.length - 1); } else if (type === "OPEN_BRACKET") { token.type = "BRACKET"; } else if (type === "CLOSE_BRACKET") { // Remove the CLOSE_BRACKET let suffix = tokens.pop().text; if (tokens.length > 0 && tokens[tokens.length - 1].type === "NUMBER") { const value = tokens.pop().text; suffix = value + suffix; (tokens[tokens.length - 1]).value = (0, index_js_1.getNumber)(value); } if (tokens.length === 0 || tokens[tokens.length - 1].type !== "BRACKET") { throw new Error("missing opening bracket"); } (tokens[tokens.length - 1]).text += suffix; } continue; } match = cur.match(regexIdentifier); if (match) { token.text = match[1]; offset += token.text.length; if (Keywords.has(token.text)) { token.type = "KEYWORD"; continue; } if (token.text.match(regexType)) { token.type = "TYPE"; continue; } token.type = "ID"; continue; } match = cur.match(regexNumber); if (match) { token.text = match[1]; token.type = "NUMBER"; offset += token.text.length; continue; } throw new Error(`unexpected token ${JSON.stringify(cur[0])} at position ${offset}`); } return new TokenString(tokens.map((t) => Object.freeze(t))); } // Check only one of `allowed` is in `set` function allowSingle(set, allowed) { let included = []; for (const key in allowed.keys()) { if (set.has(key)) { included.push(key); } } if (included.length > 1) { throw new Error(`conflicting types: ${included.join(", ")}`); } } // Functions to process a Solidity Signature TokenString from left-to-right for... // ...the name with an optional type, returning the name function consumeName(type, tokens) { if (tokens.peekKeyword(KwTypes)) { const keyword = tokens.pop().text; if (keyword !== type) { throw new Error(`expected ${type}, got ${keyword}`); } } return tokens.popType("ID"); } // ...all keywords matching allowed, returning the keywords function consumeKeywords(tokens, allowed) { const keywords = new Set(); while (true) { const keyword = tokens.peekType("KEYWORD"); if (keyword == null || (allowed && !allowed.has(keyword))) { break; } tokens.pop(); if (keywords.has(keyword)) { throw new Error(`duplicate keywords: ${JSON.stringify(keyword)}`); } keywords.add(keyword); } return Object.freeze(keywords); } // ...all visibility keywords, returning the coalesced mutability function consumeMutability(tokens) { let modifiers = consumeKeywords(tokens, KwVisib); // Detect conflicting modifiers allowSingle(modifiers, setify("constant payable nonpayable".split(" "))); allowSingle(modifiers, setify("pure view payable nonpayable".split(" "))); // Process mutability states if (modifiers.has("view")) { return "view"; } if (modifiers.has("pure")) { return "pure"; } if (modifiers.has("payable")) { return "payable"; } if (modifiers.has("nonpayable")) { return "nonpayable"; } // Process legacy `constant` last if (modifiers.has("constant")) { return "view"; } return "nonpayable"; } // ...a parameter list, returning the ParamType list function consumeParams(tokens, allowIndexed) { return tokens.popParams().map((t) => ParamType.from(t, allowIndexed)); } // ...a gas limit, returning a BigNumber or null if none function consumeGas(tokens) { if (tokens.peekType("AT")) { tokens.pop(); if (tokens.peekType("NUMBER")) { return (0, index_js_1.getBigInt)(tokens.pop().text); } throw new Error("invalid gas"); } return null; } function consumeEoi(tokens) { if (tokens.length) { throw new Error(`unexpected tokens: ${tokens.toString()}`); } } const regexArrayType = new RegExp(/^(.*)\[([0-9]*)\]$/); function verifyBasicType(type) { const match = type.match(regexType); (0, index_js_1.assertArgument)(match, "invalid type", "type", type); if (type === "uint") { return "uint256"; } if (type === "int") { return "int256"; } if (match[2]) { // bytesXX const length = parseInt(match[2]); (0, index_js_1.assertArgument)(length !== 0 && length <= 32, "invalid bytes length", "type", type); } else if (match[3]) { // intXX or uintXX const size = parseInt(match[3]); (0, index_js_1.assertArgument)(size !== 0 && size <= 256 && (size % 8) === 0, "invalid numeric width", "type", type); } return type; } // Make the Fragment constructors effectively private const _guard = {}; const internal = Symbol.for("_ethers_internal"); const ParamTypeInternal = "_ParamTypeInternal"; const ErrorFragmentInternal = "_ErrorInternal"; const EventFragmentInternal = "_EventInternal"; const ConstructorFragmentInternal = "_ConstructorInternal"; const FunctionFragmentInternal = "_FunctionInternal"; const StructFragmentInternal = "_StructInternal"; /** * Each input and output of a [[Fragment]] is an Array of **PAramType**. */ class ParamType { /** * The local name of the parameter (or ``""`` if unbound) */ name; /** * The fully qualified type (e.g. ``"address"``, ``"tuple(address)"``, * ``"uint256[3][]"``) */ type; /** * The base type (e.g. ``"address"``, ``"tuple"``, ``"array"``) */ baseType; /** * True if the parameters is indexed. * * For non-indexable types (see [[ParamType_isIndexable]]) this * is ``null``. */ indexed; /** * The components for the tuple. * * For non-tuple types (see [[ParamType_isTuple]]) this is ``null``. */ components; /** * The array length, or ``-1`` for dynamic-lengthed arrays. * * For non-array types (see [[ParamType_isArray]]) this is ``null``. */ arrayLength; /** * The type of each child in the array. * * For non-array types (see [[ParamType_isArray]]) this is ``null``. */ arrayChildren; /** * @private */ constructor(guard, name, type, baseType, indexed, components, arrayLength, arrayChildren) { (0, index_js_1.assertPrivate)(guard, _guard, "ParamType"); Object.defineProperty(this, internal, { value: ParamTypeInternal }); if (components) { components = Object.freeze(components.slice()); } if (baseType === "array") { if (arrayLength == null || arrayChildren == null) { throw new Error(""); } } else if (arrayLength != null || arrayChildren != null) { throw new Error(""); } if (baseType === "tuple") { if (components == null) { throw new Error(""); } } else if (components != null) { throw new Error(""); } (0, index_js_1.defineProperties)(this, { name, type, baseType, indexed, components, arrayLength, arrayChildren }); } /** * Return a string representation of this type. * * For example, * * ``sighash" => "(uint256,address)"`` * * ``"minimal" => "tuple(uint256,address) indexed"`` * * ``"full" => "tuple(uint256 foo, address bar) indexed baz"`` */ format(format) { if (format == null) { format = "sighash"; } if (format === "json") { let result = { type: ((this.baseType === "tuple") ? "tuple" : this.type), name: (this.name || undefined) }; if (typeof (this.indexed) === "boolean") { result.indexed = this.indexed; } if (this.isTuple()) { result.components = this.components.map((c) => JSON.parse(c.format(format))); } return JSON.stringify(result); } let result = ""; // Array if (this.isArray()) { result += this.arrayChildren.format(format); result += `[${(this.arrayLength < 0 ? "" : String(this.arrayLength))}]`; } else { if (this.isTuple()) { if (format !== "sighash") { result += this.type; } result += "(" + this.components.map((comp) => comp.format(format)).join((format === "full") ? ", " : ",") + ")"; } else { result += this.type; } } if (format !== "sighash") { if (this.indexed === true) { result += " indexed"; } if (format === "full" && this.name) { result += " " + this.name; } } return result; } /* * Returns true if %%value%% is an Array type. * * This provides a type gaurd ensuring that the * [[arrayChildren]] and [[arrayLength]] are non-null. */ //static isArray(value: any): value is { arrayChildren: ParamType, arrayLength: number } { // return value && (value.baseType === "array") //} /** * Returns true if %%this%% is an Array type. * * This provides a type gaurd ensuring that [[arrayChildren]] * and [[arrayLength]] are non-null. */ isArray() { return (this.baseType === "array"); } /** * Returns true if %%this%% is a Tuple type. * * This provides a type gaurd ensuring that [[components]] * is non-null. */ isTuple() { return (this.baseType === "tuple"); } /** * Returns true if %%this%% is an Indexable type. * * This provides a type gaurd ensuring that [[indexed]] * is non-null. */ isIndexable() { return (this.indexed != null); } /** * Walks the **ParamType** with %%value%%, calling %%process%% * on each type, destructing the %%value%% recursively. */ walk(value, process) { if (this.isArray()) { if (!Array.isArray(value)) { throw new Error("invlaid array value"); } if (this.arrayLength !== -1 && value.length !== this.arrayLength) { throw new Error("array is wrong length"); } const _this = this; return value.map((v) => (_this.arrayChildren.walk(v, process))); } if (this.isTuple()) { if (!Array.isArray(value)) { throw new Error("invlaid tuple value"); } if (value.length !== this.components.length) { throw new Error("array is wrong length"); } const _this = this; return value.map((v, i) => (_this.components[i].walk(v, process))); } return process(this.type, value); } #walkAsync(promises, value, process, setValue) { if (this.isArray()) { if (!Array.isArray(value)) { throw new Error("invlaid array value"); } if (this.arrayLength !== -1 && value.length !== this.arrayLength) { throw new Error("array is wrong length"); } const childType = this.arrayChildren; const result = value.slice(); result.forEach((value, index) => { childType.#walkAsync(promises, value, process, (value) => { result[index] = value; }); }); setValue(result); return; } if (this.isTuple()) { const components = this.components; // Convert the object into an array let result; if (Array.isArray(value)) { result = value.slice(); } else { if (value == null || typeof (value) !== "object") { throw new Error("invlaid tuple value"); } result = components.map((param) => { if (!param.name) { throw new Error("cannot use object value with unnamed components"); } if (!(param.name in value)) { throw new Error(`missing value for component ${param.name}`); } return value[param.name]; }); } if (result.length !== this.components.length) { throw new Error("array is wrong length"); } result.forEach((value, index) => { components[index].#walkAsync(promises, value, process, (value) => { result[index] = value; }); }); setValue(result); return; } const result = process(this.type, value); if (result.then) { promises.push((async function () { setValue(await result); })()); } else { setValue(result); } } /** * Walks the **ParamType** with %%value%%, asynchronously calling * %%process%% on each type, destructing the %%value%% recursively. * * This can be used to resolve ENS naes by walking and resolving each * ``"address"`` type. */ async walkAsync(value, process) { const promises = []; const result = [value]; this.#walkAsync(promises, value, process, (value) => { result[0] = value; }); if (promises.length) { await Promise.all(promises); } return result[0]; } /** * Creates a new **ParamType** for %%obj%%. * * If %%allowIndexed%% then the ``indexed`` keyword is permitted, * otherwise the ``indexed`` keyword will throw an error. */ static from(obj, allowIndexed) { if (ParamType.isParamType(obj)) { return obj; } if (typeof (obj) === "string") { return ParamType.from(lex(obj), allowIndexed); } else if (obj instanceof TokenString) { let type = "", baseType = ""; let comps = null; if (consumeKeywords(obj, setify(["tuple"])).has("tuple") || obj.peekType("OPEN_PAREN")) { // Tuple baseType = "tuple"; comps = obj.popParams().map((t) => ParamType.from(t)); type = `tuple(${comps.map((c) => c.format()).join(",")})`; } else { // Normal type = verifyBasicType(obj.popType("TYPE")); baseType = type; } // Check for Array let arrayChildren = null; let arrayLength = null; while (obj.length && obj.peekType("BRACKET")) { const bracket = obj.pop(); //arrays[i]; arrayChildren = new ParamType(_guard, "", type, baseType, null, comps, arrayLength, arrayChildren); arrayLength = bracket.value; type += bracket.text; baseType = "array"; comps = null; } let indexed = null; const keywords = consumeKeywords(obj, KwModifiers); if (keywords.has("indexed")) { if (!allowIndexed) { throw new Error(""); } indexed = true; } const name = (obj.peekType("ID") ? obj.pop().text : ""); if (obj.length) { throw new Error("leftover tokens"); } return new ParamType(_guard, name, type, baseType, indexed, comps, arrayLength, arrayChildren); } const name = obj.name; (0, index_js_1.assertArgument)(!name || (typeof (name) === "string" && name.match(regexIdentifier)), "invalid name", "obj.name", name); let indexed = obj.indexed; if (indexed != null) { (0, index_js_1.assertArgument)(allowIndexed, "parameter cannot be indexed", "obj.indexed", obj.indexed); indexed = !!indexed; } let type = obj.type; let arrayMatch = type.match(regexArrayType); if (arrayMatch) { const arrayLength = parseInt(arrayMatch[2] || "-1"); const arrayChildren = ParamType.from({ type: arrayMatch[1], components: obj.components }); return new ParamType(_guard, name || "", type, "array", indexed, null, arrayLength, arrayChildren); } if (type === "tuple" || type.substring(0, 5) === "tuple(" || type[0] === "(") { const comps = (obj.components != null) ? obj.components.map((c) => ParamType.from(c)) : null; const tuple = new ParamType(_guard, name || "", type, "tuple", indexed, comps, null, null); // @TODO: use lexer to validate and normalize type return tuple; } type = verifyBasicType(obj.type); return new ParamType(_guard, name || "", type, type, indexed, null, null, null); } /** * Returns true if %%value%% is a **ParamType**. */ static isParamType(value) { return (value && value[internal] === ParamTypeInternal); } } exports.ParamType = ParamType; /** * An abstract class to represent An individual fragment from a parse ABI. */ class Fragment { /** * The type of the fragment. */ type; /** * The inputs for the fragment. */ inputs; /** * @private */ constructor(guard, type, inputs) { (0, index_js_1.assertPrivate)(guard, _guard, "Fragment"); inputs = Object.freeze(inputs.slice()); (0, index_js_1.defineProperties)(this, { type, inputs }); } /** * Creates a new **Fragment** for %%obj%%, wich can be any supported * ABI frgament type. */ static from(obj) { if (typeof (obj) === "string") { try { Fragment.from(JSON.parse(obj)); } catch (e) { } return Fragment.from(lex(obj)); } if (obj instanceof TokenString) { const type = obj.popKeyword(KwTypes); switch (type) { case "constructor": return ConstructorFragment.from(obj); case "error": return ErrorFragment.from(obj); case "event": return EventFragment.from(obj); case "function": return FunctionFragment.from(obj); case "struct": return StructFragment.from(obj); } throw new Error(`unsupported type: ${type}`); } if (typeof (obj) === "object") { switch (obj.type) { case "constructor": return ConstructorFragment.from(obj); case "error": return ErrorFragment.from(obj); case "event": return EventFragment.from(obj); case "function": return FunctionFragment.from(obj); case "struct": return StructFragment.from(obj); } throw new Error(`not implemented yet: ${obj.type}`); } throw new Error(`unsupported type: ${obj}`); } /** * Returns true if %%value%% is a [[ConstructorFragment]]. */ static isConstructor(value) { return ConstructorFragment.isFragment(value); } /** * Returns true if %%value%% is an [[ErrorFragment]]. */ static isError(value) { return ErrorFragment.isFragment(value); } /** * Returns true if %%value%% is an [[EventFragment]]. */ static isEvent(value) { return EventFragment.isFragment(value); } /** * Returns true if %%value%% is a [[FunctionFragment]]. */ static isFunction(value) { return FunctionFragment.isFragment(value); } /** * Returns true if %%value%% is a [[StructFragment]]. */ static isStruct(value) { return StructFragment.isFragment(value); } } exports.Fragment = Fragment; /** * An abstract class to represent An individual fragment * which has a name from a parse ABI. */ class NamedFragment extends Fragment { /** * The name of the fragment. */ name; /** * @private */ constructor(guard, type, name, inputs) { super(guard, type, inputs); (0, index_js_1.assertArgument)(typeof (name) === "string" && name.match(regexIdentifier), "invalid identifier", "name", name); inputs = Object.freeze(inputs.slice()); (0, index_js_1.defineProperties)(this, { name }); } } exports.NamedFragment = NamedFragment; function joinParams(format, params) { return "(" + params.map((p) => p.format(format)).join((format === "full") ? ", " : ",") + ")"; } /** * A Fragment which represents a //Custom Error//. */ class ErrorFragment extends NamedFragment { /** * @private */ constructor(guard, name, inputs) { super(guard, "error", name, inputs); Object.defineProperty(this, internal, { value: ErrorFragmentInternal }); } /** * The Custom Error selector. */ get selector() { return (0, index_js_2.id)(this.format("sighash")).substring(0, 10); } format(format) { if (format == null) { format = "sighash"; } if (format === "json") { return JSON.stringify({ type: "error", name: this.name, inputs: this.inputs.map((input) => JSON.parse(input.format(format))), }); } const result = []; if (format !== "sighash") { result.push("error"); } result.push(this.name + joinParams(format, this.inputs)); return result.join(" "); } static from(obj) { if (ErrorFragment.isFragment(obj)) { return obj; } if (typeof (obj) === "string") { return ErrorFragment.from(lex(obj)); } else if (obj instanceof TokenString) { const name = consumeName("error", obj); const inputs = consumeParams(obj); consumeEoi(obj); return new ErrorFragment(_guard, name, inputs); } return new ErrorFragment(_guard, obj.name, obj.inputs ? obj.inputs.map(ParamType.from) : []); } static isFragment(value) { return (value && value[internal] === ErrorFragmentInternal); } } exports.ErrorFragment = ErrorFragment; /** * A Fragment which represents an Event. */ class EventFragment extends NamedFragment { anonymous; /** * @private */ constructor(guard, name, inputs, anonymous) { super(guard, "event", name, inputs); Object.defineProperty(this, internal, { value: EventFragmentInternal }); (0, index_js_1.defineProperties)(this, { anonymous }); } /** * The Event topic hash. */ get topicHash() { return (0, index_js_2.id)(this.format("sighash")); } format(format) { if (format == null) { format = "sighash"; } if (format === "json") { return JSON.stringify({ type: "event", anonymous: this.anonymous, name: this.name, inputs: this.inputs.map((i) => JSON.parse(i.format(format))) }); } const result = []; if (format !== "sighash") { result.push("event"); } result.push(this.name + joinParams(format, this.inputs)); if (format !== "sighash" && this.anonymous) { result.push("anonymous"); } return result.join(" "); } static from(obj) { if (EventFragment.isFragment(obj)) { return obj; } if (typeof (obj) === "string") { return EventFragment.from(lex(obj)); } else if (obj instanceof TokenString) { const name = consumeName("event", obj); const inputs = consumeParams(obj, true); const anonymous = !!consumeKeywords(obj, setify(["anonymous"])).has("anonymous"); consumeEoi(obj); return new EventFragment(_guard, name, inputs, anonymous); } return new EventFragment(_guard, obj.name, obj.inputs ? obj.inputs.map((p) => ParamType.from(p, true)) : [], !!obj.anonymous); } static isFragment(value) { return (value && value[internal] === EventFragmentInternal); } } exports.EventFragment = EventFragment; /** * A Fragment which represents a constructor. */ class ConstructorFragment extends Fragment { payable; gas; /** * @private */ constructor(guard, type, inputs, payable, gas) { super(guard, type, inputs); Object.defineProperty(this, internal, { value: ConstructorFragmentInternal }); (0, index_js_1.defineProperties)(this, { payable, gas }); } format(format) { (0, index_js_1.assert)(format != null && format !== "sighash", "cannot format a constructor for sighash", "UNSUPPORTED_OPERATION", { operation: "format(sighash)" }); if (format === "json") { return JSON.stringify({ type: "constructor", stateMutability: (this.payable ? "payable" : "undefined"), payable: this.payable, gas: ((this.gas != null) ? this.gas : undefined), inputs: this.inputs.map((i) => JSON.parse(i.format(format))) }); } const result = [`constructor${joinParams(format, this.inputs)}`]; result.push((this.payable) ? "payable" : "nonpayable"); if (this.gas != null) { result.push(`@${this.gas.toString()}`); } return result.join(" "); } static from(obj) { if (ConstructorFragment.isFragment(obj)) { return obj; } if (typeof (obj) === "string") { return ConstructorFragment.from(lex(obj)); } else if (obj instanceof TokenString) { consumeKeywords(obj, setify(["constructor"])); const inputs = consumeParams(obj); const payable = !!consumeKeywords(obj, setify(["payable"])).has("payable"); const gas = consumeGas(obj); consumeEoi(obj); return new ConstructorFragment(_guard, "constructor", inputs, payable, gas); } return new ConstructorFragment(_guard, "constructor", obj.inputs ? obj.inputs.map(ParamType.from) : [], !!obj.payable, (obj.gas != null) ? obj.gas : null); } static isFragment(value) { return (value && value[internal] === ConstructorFragmentInternal); } } exports.ConstructorFragment = ConstructorFragment; /** * A Fragment which represents a method. */ class FunctionFragment extends NamedFragment { /** * If the function is constant (e.g. ``pure`` or ``view`` functions). */ constant; /** * The returned types for the result of calling this function. */ outputs; /** * The state mutability (e.g. ``payable``, ``nonpayable``, ``view`` * or ``pure``) */ stateMutability; /** * If the function can be send a value during invocation. */ payable; /** * The amount of gas to send when calling this function */ gas; /** * @private */ constructor(guard, name, stateMutability, inputs, outputs, gas) { super(guard, "function", name, inputs); Object.defineProperty(this, internal, { value: FunctionFragmentInternal }); outputs = Object.freeze(outputs.slice()); const constant = (stateMutability === "view" || stateMutability === "pure"); const payable = (stateMutability === "payable"); (0, index_js_1.defineProperties)(this, { constant, gas, outputs, payable, stateMutability }); } /** * The Function selector. */ get selector() { return (0, index_js_2.id)(this.format("sighash")).substring(0, 10); } format(format) { if (format == null) { format = "sighash"; } if (format === "json") { return JSON.stringify({ type: "function", name: this.name, constant: this.constant, stateMutability: ((this.stateMutability !== "nonpayable") ? this.stateMutability : undefined), payable: this.payable, gas: ((this.gas != null) ? this.gas : undefined), inputs: this.inputs.map((i) => JSON.parse(i.format(format))), outputs: this.outputs.map((o) => JSON.parse(o.format(format))), }); } const result = []; if (format !== "sighash") { result.push("function"); } result.push(this.name + joinParams(format, this.inputs)); if (format !== "sighash") { if (this.stateMutability !== "nonpayable") { result.push(this.stateMutability); } if (this.outputs && this.outputs.length) { result.push("returns"); result.push(joinParams(format, this.outputs)); } if (this.gas != null) { result.push(`@${this.gas.toString()}`); } } return result.join(" "); } static from(obj) { if (FunctionFragment.isFragment(obj)) { return obj; } if (typeof (obj) === "string") { return FunctionFragment.from(lex(obj)); } else if (obj instanceof TokenString) { const name = consumeName("function", obj); const inputs = consumeParams(obj); const mutability = consumeMutability(obj); let outputs = []; if (consumeKeywords(obj, setify(["returns"])).has("returns")) { outputs = consumeParams(obj); } const gas = consumeGas(obj); consumeEoi(obj); return new FunctionFragment(_guard, name, mutability, inputs, outputs, gas); } // @TODO: verifyState for stateMutability return new FunctionFragment(_guard, obj.name, obj.stateMutability, obj.inputs ? obj.inputs.map(ParamType.from) : [], obj.outputs ? obj.outputs.map(ParamType.from) : [], (obj.gas != null) ? obj.gas : null); } static isFragment(value) { return (value && value[internal] === FunctionFragmentInternal); } } exports.FunctionFragment = FunctionFragment; /** * A Fragment which represents a structure. */ class StructFragment extends NamedFragment { /** * @private */ constructor(guard, name, inputs) { super(guard, "struct", name, inputs); Object.defineProperty(this, internal, { value: StructFragmentInternal }); } format() { throw new Error("@TODO"); } static from(obj) { if (typeof (obj) === "string") { return StructFragment.from(lex(obj)); } else if (obj instanceof TokenString) { const name = consumeName("struct", obj); const inputs = consumeParams(obj); consumeEoi(obj); return new StructFragment(_guard, name, inputs); } return new StructFragment(_guard, obj.name, obj.inputs ? obj.inputs.map(ParamType.from) : []); } static isFragment(value) { return (value && value[internal] === StructFragmentInternal); } } exports.StructFragment = StructFragment; //# sourceMappingURL=fragments.js.map