1010 lines
37 KiB
TypeScript
1010 lines
37 KiB
TypeScript
import { keccak256 } from "../crypto/index.js"
|
|
import { id } from "../hash/index.js"
|
|
import {
|
|
concat, dataSlice, getBigInt, getBytes, getBytesCopy,
|
|
hexlify, zeroPadValue, isHexString, defineProperties, throwArgumentError, toHex,
|
|
throwError
|
|
} from "../utils/index.js";
|
|
|
|
import { AbiCoder, defaultAbiCoder, getBuiltinCallException } from "./abi-coder.js";
|
|
import { checkResultErrors, Result } from "./coders/abstract-coder.js";
|
|
import { ConstructorFragment, ErrorFragment, EventFragment, Fragment, FunctionFragment, ParamType } from "./fragments.js";
|
|
import { Typed } from "./typed.js";
|
|
|
|
import type { BigNumberish, BytesLike, CallExceptionError, CallExceptionTransaction } from "../utils/index.js";
|
|
|
|
import type { JsonFragment } from "./fragments.js";
|
|
|
|
|
|
export { checkResultErrors, Result };
|
|
|
|
export class LogDescription {
|
|
readonly fragment!: EventFragment;
|
|
readonly name!: string;
|
|
readonly signature!: string;
|
|
readonly topic!: string;
|
|
readonly args!: Result
|
|
|
|
constructor(fragment: EventFragment, topic: string, args: Result) {
|
|
const name = fragment.name, signature = fragment.format();
|
|
defineProperties<LogDescription>(this, {
|
|
fragment, name, signature, topic, args
|
|
});
|
|
}
|
|
}
|
|
|
|
export class TransactionDescription {
|
|
readonly fragment!: FunctionFragment;
|
|
readonly name!: string;
|
|
readonly args!: Result;
|
|
readonly signature!: string;
|
|
readonly selector!: string;
|
|
readonly value!: bigint;
|
|
|
|
constructor(fragment: FunctionFragment, selector: string, args: Result, value: bigint) {
|
|
const name = fragment.name, signature = fragment.format();
|
|
defineProperties<TransactionDescription>(this, {
|
|
fragment, name, args, signature, selector, value
|
|
});
|
|
}
|
|
}
|
|
|
|
export class ErrorDescription {
|
|
readonly fragment!: ErrorFragment;
|
|
readonly name!: string;
|
|
readonly args!: Result;
|
|
readonly signature!: string;
|
|
readonly selector!: string;
|
|
|
|
constructor(fragment: ErrorFragment, selector: string, args: Result) {
|
|
const name = fragment.name, signature = fragment.format();
|
|
defineProperties<ErrorDescription>(this, {
|
|
fragment, name, args, signature, selector
|
|
});
|
|
}
|
|
}
|
|
|
|
export class Indexed {
|
|
readonly hash!: null | string;
|
|
readonly _isIndexed!: boolean;
|
|
|
|
static isIndexed(value: any): value is Indexed {
|
|
return !!(value && value._isIndexed);
|
|
}
|
|
|
|
constructor(hash: null | string) {
|
|
defineProperties<Indexed>(this, { hash, _isIndexed: true })
|
|
}
|
|
}
|
|
|
|
type ErrorInfo = {
|
|
signature: string,
|
|
inputs: Array<string>,
|
|
name: string,
|
|
reason: (...args: Array<any>) => string;
|
|
};
|
|
|
|
// https://docs.soliditylang.org/en/v0.8.13/control-structures.html?highlight=panic#panic-via-assert-and-error-via-require
|
|
const PanicReasons: Record<string, string> = {
|
|
"0": "generic panic",
|
|
"1": "assert(false)",
|
|
"17": "arithmetic overflow",
|
|
"18": "division or modulo by zero",
|
|
"33": "enum overflow",
|
|
"34": "invalid encoded storage byte array accessed",
|
|
"49": "out-of-bounds array access; popping on an empty array",
|
|
"50": "out-of-bounds access of an array or bytesN",
|
|
"65": "out of memory",
|
|
"81": "uninitialized function",
|
|
}
|
|
|
|
const BuiltinErrors: Record<string, ErrorInfo> = {
|
|
"0x08c379a0": {
|
|
signature: "Error(string)",
|
|
name: "Error",
|
|
inputs: [ "string" ],
|
|
reason: (message: string) => {
|
|
return `reverted with reason string ${ JSON.stringify(message) }`;
|
|
}
|
|
},
|
|
"0x4e487b71": {
|
|
signature: "Panic(uint256)",
|
|
name: "Panic",
|
|
inputs: [ "uint256" ],
|
|
reason: (code: bigint) => {
|
|
let reason = "unknown panic code";
|
|
if (code >= 0 && code <= 0xff && PanicReasons[code.toString()]) {
|
|
reason = PanicReasons[code.toString()];
|
|
}
|
|
return `reverted with panic code 0x${ code.toString(16) } (${ reason })`;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
function wrapAccessError(property: string, error: Error): Error {
|
|
const wrap = new Error(`deferred error during ABI decoding triggered accessing ${ property }`);
|
|
(<any>wrap).error = error;
|
|
return wrap;
|
|
}
|
|
*/
|
|
/*
|
|
function checkNames(fragment: Fragment, type: "input" | "output", params: Array<ParamType>): void {
|
|
params.reduce((accum, param) => {
|
|
if (param.name) {
|
|
if (accum[param.name]) {
|
|
logger.throwArgumentError(`duplicate ${ type } parameter ${ JSON.stringify(param.name) } in ${ fragment.format("full") }`, "fragment", fragment);
|
|
}
|
|
accum[param.name] = true;
|
|
}
|
|
return accum;
|
|
}, <{ [ name: string ]: boolean }>{ });
|
|
}
|
|
*/
|
|
//export type AbiCoder = any;
|
|
//const defaultAbiCoder: AbiCoder = { };
|
|
|
|
export type InterfaceAbi = string | ReadonlyArray<Fragment | JsonFragment | string>;
|
|
|
|
export class Interface {
|
|
/**
|
|
* All the Contract ABI members (i.e. methods, events, errors, etc).
|
|
*/
|
|
readonly fragments!: ReadonlyArray<Fragment>;
|
|
|
|
/**
|
|
* The Contract constructor.
|
|
*/
|
|
readonly deploy!: ConstructorFragment;
|
|
|
|
#errors: Map<string, ErrorFragment>;
|
|
#events: Map<string, EventFragment>;
|
|
#functions: Map<string, FunctionFragment>;
|
|
// #structs: Map<string, StructFragment>;
|
|
|
|
#abiCoder: AbiCoder;
|
|
|
|
constructor(fragments: InterfaceAbi) {
|
|
let abi: ReadonlyArray<Fragment | JsonFragment | string> = [ ];
|
|
if (typeof(fragments) === "string") {
|
|
abi = JSON.parse(fragments);
|
|
} else {
|
|
abi = fragments;
|
|
}
|
|
|
|
this.#functions = new Map();
|
|
this.#errors = new Map();
|
|
this.#events = new Map();
|
|
// this.#structs = new Map();
|
|
|
|
|
|
const frags: Array<Fragment> = [ ];
|
|
for (const a of abi) {
|
|
try {
|
|
frags.push(Fragment.from(a));
|
|
} catch (error) {
|
|
console.log("EE", error);
|
|
}
|
|
}
|
|
|
|
defineProperties<Interface>(this, {
|
|
fragments: Object.freeze(frags)
|
|
});
|
|
|
|
this.#abiCoder = this.getAbiCoder();
|
|
|
|
// Add all fragments by their signature
|
|
this.fragments.forEach((fragment) => {
|
|
let bucket: Map<string, Fragment>;
|
|
switch (fragment.type) {
|
|
case "constructor":
|
|
if (this.deploy) {
|
|
console.log("duplicate definition - constructor");
|
|
return;
|
|
}
|
|
//checkNames(fragment, "input", fragment.inputs);
|
|
defineProperties<Interface>(this, { deploy: <ConstructorFragment>fragment });
|
|
return;
|
|
|
|
case "function":
|
|
//checkNames(fragment, "input", fragment.inputs);
|
|
//checkNames(fragment, "output", (<FunctionFragment>fragment).outputs);
|
|
bucket = this.#functions;
|
|
break;
|
|
|
|
case "event":
|
|
//checkNames(fragment, "input", fragment.inputs);
|
|
bucket = this.#events;
|
|
break;
|
|
|
|
case "error":
|
|
bucket = this.#errors;
|
|
break;
|
|
|
|
default:
|
|
return;
|
|
}
|
|
|
|
// Two identical entries; ignore it
|
|
const signature = fragment.format();
|
|
if (bucket.has(signature)) { return; }
|
|
|
|
bucket.set(signature, fragment);
|
|
});
|
|
|
|
// If we do not have a constructor add a default
|
|
if (!this.deploy) {
|
|
defineProperties<Interface>(this, {
|
|
deploy: ConstructorFragment.from("constructor()")
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the entire Human-Readable ABI, as an array of
|
|
* signatures, optionally as %%minimal%% strings, which
|
|
* removes parameter names and unneceesary spaces.
|
|
*/
|
|
format(minimal?: boolean): Array<string> {
|
|
const format = (minimal ? "minimal": "full");
|
|
const abi = this.fragments.map((f) => f.format(format));
|
|
return abi;
|
|
}
|
|
|
|
/**
|
|
* Return the JSON-encoded ABI. This is the format Solidiy
|
|
* returns.
|
|
*/
|
|
formatJson(): string {
|
|
const abi = this.fragments.map((f) => f.format("json"));
|
|
|
|
// We need to re-bundle the JSON fragments a bit
|
|
return JSON.stringify(abi.map((j) => JSON.parse(j)));
|
|
}
|
|
|
|
/**
|
|
* The ABI coder that will be used to encode and decode binary
|
|
* data.
|
|
*/
|
|
getAbiCoder(): AbiCoder {
|
|
return defaultAbiCoder;
|
|
}
|
|
|
|
// Find a function definition by any means necessary (unless it is ambiguous)
|
|
#getFunction(key: string, values: null | Array<any | Typed>, forceUnique: boolean): FunctionFragment {
|
|
|
|
// Selector
|
|
if (isHexString(key)) {
|
|
const selector = key.toLowerCase();
|
|
for (const fragment of this.#functions.values()) {
|
|
if (selector === fragment.selector) { return fragment; }
|
|
}
|
|
throwArgumentError("no matching function", "selector", key);
|
|
}
|
|
|
|
// It is a bare name, look up the function (will return null if ambiguous)
|
|
if (key.indexOf("(") === -1) {
|
|
const matching: Array<FunctionFragment> = [ ];
|
|
for (const [ name, fragment ] of this.#functions) {
|
|
if (name.split("("/* fix:) */)[0] === key) { matching.push(fragment); }
|
|
}
|
|
|
|
if (values) {
|
|
const lastValue = (values.length > 0) ? values[values.length - 1]: null;
|
|
|
|
let valueLength = values.length;
|
|
let allowOptions = true;
|
|
if (Typed.isTyped(lastValue) && lastValue.type === "overrides") {
|
|
allowOptions = false;
|
|
valueLength--;
|
|
}
|
|
|
|
// Remove all matches that don't have a compatible length. The args
|
|
// may contain an overrides, so the match may have n or n - 1 parameters
|
|
for (let i = matching.length - 1; i >= 0; i--) {
|
|
const inputs = matching[i].inputs.length;
|
|
if (inputs !== valueLength && (!allowOptions || inputs !== valueLength - 1)) {
|
|
matching.splice(i, 1);
|
|
}
|
|
}
|
|
|
|
// Remove all matches that don't match the Typed signature
|
|
for (let i = matching.length - 1; i >= 0; i--) {
|
|
const inputs = matching[i].inputs;
|
|
for (let j = 0; j < values.length; j++) {
|
|
// Not a typed value
|
|
if (!Typed.isTyped(values[j])) { continue; }
|
|
|
|
// We are past the inputs
|
|
if (j >= inputs.length) {
|
|
if (values[j].type === "overrides") { continue; }
|
|
matching.splice(i, 1);
|
|
break;
|
|
}
|
|
|
|
// Make sure the value type matches the input type
|
|
if (values[j].type !== inputs[j].baseType) {
|
|
matching.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// We found a single matching signature with an overrides, but the
|
|
// last value is something that cannot possibly be an options
|
|
if (matching.length === 1 && values && values.length !== matching[0].inputs.length) {
|
|
const lastArg = values[values.length - 1];
|
|
if (lastArg == null || Array.isArray(lastArg) || typeof(lastArg) !== "object") {
|
|
matching.splice(0, 1);
|
|
}
|
|
}
|
|
|
|
if (matching.length === 0) {
|
|
throwArgumentError("no matching function", "name", key);
|
|
|
|
} else if (matching.length > 1 && forceUnique) {
|
|
const matchStr = matching.map((m) => JSON.stringify(m.format())).join(", ");
|
|
throwArgumentError(`multiple matching functions (i.e. ${ matchStr })`, "name", key);
|
|
}
|
|
|
|
return matching[0];
|
|
}
|
|
|
|
// Normalize the signature and lookup the function
|
|
const result = this.#functions.get(FunctionFragment.from(key).format());
|
|
if (result) { return result; }
|
|
|
|
return throwArgumentError("no matching function", "signature", key);
|
|
}
|
|
|
|
/**
|
|
* Get the function name for %%key%%, which may be a function selector,
|
|
* function name or function signature that belongs to the ABI.
|
|
*/
|
|
getFunctionName(key: string): string {
|
|
return (this.#getFunction(key, null, false)).name;
|
|
}
|
|
|
|
/**
|
|
* Get the [[FunctionFragment]] for %%key%%, which may be a function
|
|
* selector, function name or function signature that belongs to the ABI.
|
|
*
|
|
* If %%values%% is provided, it will use the Typed API to handle
|
|
* ambiguous cases where multiple functions match by name.
|
|
*
|
|
* If the %%key%% and %%values%% do not refine to a single function in
|
|
* the ABI, this will throw.
|
|
*/
|
|
getFunction(key: string, values?: Array<any | Typed>): FunctionFragment {
|
|
return this.#getFunction(key, values || null, true)
|
|
}
|
|
|
|
|
|
// Find an event definition by any means necessary (unless it is ambiguous)
|
|
#getEvent(key: string, values: null | Array<null | any | Typed>, forceUnique: boolean): EventFragment {
|
|
|
|
// EventTopic
|
|
if (isHexString(key)) {
|
|
const eventTopic = key.toLowerCase();
|
|
for (const fragment of this.#events.values()) {
|
|
if (eventTopic === fragment.topicHash) { return fragment; }
|
|
}
|
|
throwArgumentError("no matching event", "eventTopic", key);
|
|
}
|
|
|
|
// It is a bare name, look up the function (will return null if ambiguous)
|
|
if (key.indexOf("(") === -1) {
|
|
const matching = [ ];
|
|
for (const [ name, fragment ] of this.#events) {
|
|
if (name.split("("/* fix:) */)[0] === key) { matching.push(fragment); }
|
|
}
|
|
|
|
if (values) {
|
|
// Remove all matches that don't have a compatible length.
|
|
for (let i = matching.length - 1; i >= 0; i--) {
|
|
if (matching[i].inputs.length < values.length) {
|
|
matching.splice(i, 1);
|
|
}
|
|
}
|
|
|
|
// Remove all matches that don't match the Typed signature
|
|
for (let i = matching.length - 1; i >= 0; i--) {
|
|
const inputs = matching[i].inputs;
|
|
for (let j = 0; j < values.length; j++) {
|
|
// Not a typed value
|
|
if (!Typed.isTyped(values[j])) { continue; }
|
|
|
|
// Make sure the value type matches the input type
|
|
if (values[j].type !== inputs[j].baseType) {
|
|
matching.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (matching.length === 0) {
|
|
throwArgumentError("no matching event", "name", key);
|
|
} else if (matching.length > 1 && forceUnique) {
|
|
// @TODO: refine by Typed
|
|
throwArgumentError("multiple matching events", "name", key);
|
|
}
|
|
|
|
return matching[0];
|
|
}
|
|
|
|
// Normalize the signature and lookup the function
|
|
const result = this.#events.get(EventFragment.from(key).format());
|
|
if (result) { return result; }
|
|
|
|
return throwArgumentError("no matching event", "signature", key);
|
|
}
|
|
|
|
/**
|
|
* Get the event name for %%key%%, which may be a topic hash,
|
|
* event name or event signature that belongs to the ABI.
|
|
*/
|
|
getEventName(key: string): string {
|
|
return (this.#getEvent(key, null, false)).name;
|
|
}
|
|
|
|
/**
|
|
* Get the [[EventFragment]] for %%key%%, which may be a topic hash,
|
|
* event name or event signature that belongs to the ABI.
|
|
*
|
|
* If %%values%% is provided, it will use the Typed API to handle
|
|
* ambiguous cases where multiple events match by name.
|
|
*
|
|
* If the %%key%% and %%values%% do not refine to a single event in
|
|
* the ABI, this will throw.
|
|
*/
|
|
getEvent(key: string, values?: Array<any | Typed>): EventFragment {
|
|
return this.#getEvent(key, values || null, true)
|
|
}
|
|
|
|
/**
|
|
* Get the [[ErrorFragment]] for %%key%%, which may be an error
|
|
* selector, error name or error signature that belongs to the ABI.
|
|
*
|
|
* If %%values%% is provided, it will use the Typed API to handle
|
|
* ambiguous cases where multiple errors match by name.
|
|
*
|
|
* If the %%key%% and %%values%% do not refine to a single error in
|
|
* the ABI, this will throw.
|
|
*/
|
|
getError(key: string, values?: Array<any | Typed>): ErrorFragment {
|
|
if (isHexString(key)) {
|
|
const selector = key.toLowerCase();
|
|
|
|
if (BuiltinErrors[selector]) {
|
|
return ErrorFragment.from(BuiltinErrors[selector].signature);
|
|
}
|
|
|
|
for (const fragment of this.#errors.values()) {
|
|
if (selector === fragment.selector) { return fragment; }
|
|
}
|
|
throwArgumentError("no matching error", "selector", key);
|
|
}
|
|
|
|
// It is a bare name, look up the function (will return null if ambiguous)
|
|
if (key.indexOf("(") === -1) {
|
|
const matching = [ ];
|
|
for (const [ name, fragment ] of this.#errors) {
|
|
if (name.split("("/* fix:) */)[0] === key) { matching.push(fragment); }
|
|
}
|
|
|
|
if (matching.length === 0) {
|
|
if (key === "Error") { return ErrorFragment.from("error Error(string)"); }
|
|
if (key === "Panic") { return ErrorFragment.from("error Panic(uint256)"); }
|
|
throwArgumentError("no matching error", "name", key);
|
|
} else if (matching.length > 1) {
|
|
// @TODO: refine by Typed
|
|
throwArgumentError("multiple matching errors", "name", key);
|
|
}
|
|
|
|
return matching[0];
|
|
}
|
|
|
|
// Normalize the signature and lookup the function
|
|
key = ErrorFragment.from(key).format()
|
|
if (key === "Error(string)") { return ErrorFragment.from("error Error(string)"); }
|
|
if (key === "Panic(uint256)") { return ErrorFragment.from("error Panic(uint256)"); }
|
|
|
|
const result = this.#errors.get(key);
|
|
if (result) { return result; }
|
|
|
|
return throwArgumentError("no matching error", "signature", key);
|
|
}
|
|
|
|
// Get the 4-byte selector used by Solidity to identify a function
|
|
/*
|
|
getSelector(fragment: ErrorFragment | FunctionFragment): string {
|
|
if (typeof(fragment) === "string") {
|
|
const matches: Array<Fragment> = [ ];
|
|
|
|
try { matches.push(this.getFunction(fragment)); } catch (error) { }
|
|
try { matches.push(this.getError(<string>fragment)); } catch (_) { }
|
|
|
|
if (matches.length === 0) {
|
|
logger.throwArgumentError("unknown fragment", "key", fragment);
|
|
} else if (matches.length > 1) {
|
|
logger.throwArgumentError("ambiguous fragment matches function and error", "key", fragment);
|
|
}
|
|
|
|
fragment = matches[0];
|
|
}
|
|
|
|
return dataSlice(id(fragment.format()), 0, 4);
|
|
}
|
|
*/
|
|
|
|
// Get the 32-byte topic hash used by Solidity to identify an event
|
|
/*
|
|
getEventTopic(fragment: EventFragment): string {
|
|
//if (typeof(fragment) === "string") { fragment = this.getEvent(eventFragment); }
|
|
return id(fragment.format());
|
|
}
|
|
*/
|
|
|
|
|
|
_decodeParams(params: ReadonlyArray<ParamType>, data: BytesLike): Result {
|
|
return this.#abiCoder.decode(params, data)
|
|
}
|
|
|
|
_encodeParams(params: ReadonlyArray<ParamType>, values: ReadonlyArray<any>): string {
|
|
return this.#abiCoder.encode(params, values)
|
|
}
|
|
|
|
/**
|
|
* Encodes a ``tx.data`` object for deploying the Contract with
|
|
* the %%values%% as the constructor arguments.
|
|
*/
|
|
encodeDeploy(values?: ReadonlyArray<any>): string {
|
|
return this._encodeParams(this.deploy.inputs, values || [ ]);
|
|
}
|
|
|
|
/**
|
|
* Decodes the result %%data%% (e.g. from an ``eth_call``) for the
|
|
* specified error (see [[getError]] for valid values for
|
|
* %%key%%).
|
|
*
|
|
* Most developers should prefer the [[parseResult]] method instead,
|
|
* which will automatically detect a ``CALL_EXCEPTION`` and throw the
|
|
* corresponding error.
|
|
*/
|
|
decodeErrorResult(fragment: ErrorFragment | string, data: BytesLike): Result {
|
|
if (typeof(fragment) === "string") { fragment = this.getError(fragment); }
|
|
|
|
if (dataSlice(data, 0, 4) !== fragment.selector) {
|
|
throwArgumentError(`data signature does not match error ${ fragment.name }.`, "data", data);
|
|
}
|
|
|
|
return this._decodeParams(fragment.inputs, dataSlice(data, 4));
|
|
}
|
|
|
|
/**
|
|
* Encodes the transaction revert data for a call result that
|
|
* reverted from the the Contract with the sepcified %%error%%
|
|
* (see [[getError]] for valid values for %%key%%) with the %%values%%.
|
|
*
|
|
* This is generally not used by most developers, unless trying to mock
|
|
* a result from a Contract.
|
|
*/
|
|
encodeErrorResult(key: ErrorFragment | string, values?: ReadonlyArray<any>): string {
|
|
const fragment = (typeof(key) === "string") ? this.getError(key): key;
|
|
|
|
return concat([
|
|
fragment.selector,
|
|
this._encodeParams(fragment.inputs, values || [ ])
|
|
]);
|
|
}
|
|
|
|
/**
|
|
* Decodes the %%data%% from a transaction ``tx.data`` for
|
|
* the function specified (see [[getFunction]] for valid values
|
|
* for %%key%%).
|
|
*
|
|
* Most developers should prefer the [[parseTransaction]] method
|
|
* instead, which will automatically detect the fragment.
|
|
*/
|
|
decodeFunctionData(key: FunctionFragment | string, data: BytesLike): Result {
|
|
const fragment = (typeof(key) === "string") ? this.getFunction(key): key;
|
|
|
|
if (dataSlice(data, 0, 4) !== fragment.selector) {
|
|
throwArgumentError(`data signature does not match function ${ fragment.name }.`, "data", data);
|
|
}
|
|
|
|
return this._decodeParams(fragment.inputs, dataSlice(data, 4));
|
|
}
|
|
|
|
/**
|
|
* Encodes the ``tx.data`` for a transaction that calls the function
|
|
* specified (see [[getFunction]] for valid values for %%key%%) with
|
|
* the %%values%%.
|
|
*/
|
|
encodeFunctionData(key: FunctionFragment | string, values?: ReadonlyArray<any>): string {
|
|
const fragment = (typeof(key) === "string") ? this.getFunction(key): key;
|
|
|
|
return concat([
|
|
fragment.selector,
|
|
this._encodeParams(fragment.inputs, values || [ ])
|
|
]);
|
|
}
|
|
|
|
/**
|
|
* Decodes the result %%data%% (e.g. from an ``eth_call``) for the
|
|
* specified function (see [[getFunction]] for valid values for
|
|
* %%key%%).
|
|
*
|
|
* Most developers should prefer the [[parseResult]] method instead,
|
|
* which will automatically detect a ``CALL_EXCEPTION`` and throw the
|
|
* corresponding error.
|
|
*/
|
|
decodeFunctionResult(fragment: FunctionFragment | string, data: BytesLike): Result {
|
|
if (typeof(fragment) === "string") { fragment = this.getFunction(fragment); }
|
|
|
|
let message = "invalid length for result data";
|
|
|
|
const bytes = getBytesCopy(data);
|
|
if ((bytes.length % 32) === 0) {
|
|
try {
|
|
return this.#abiCoder.decode(fragment.outputs, bytes);
|
|
} catch (error) {
|
|
message = "could not decode result data";
|
|
}
|
|
}
|
|
|
|
// Call returned data with no error, but the data is junk
|
|
return throwError(message, "BAD_DATA", {
|
|
value: hexlify(bytes),
|
|
info: { method: fragment.name, signature: fragment.format() }
|
|
});
|
|
}
|
|
|
|
makeError(_data: BytesLike, tx: CallExceptionTransaction): CallExceptionError {
|
|
const data = getBytes(_data, "data");
|
|
|
|
const error = getBuiltinCallException("call", tx, data);
|
|
|
|
// Not a built-in error; try finding a custom error
|
|
if (!error.message.match(/could not decode/)) {
|
|
const selector = hexlify(data.slice(0, 4));
|
|
|
|
error.message = "execution reverted (unknown custom error)";
|
|
try {
|
|
const ef = this.getError(selector);
|
|
try {
|
|
error.revert = {
|
|
name: ef.name,
|
|
signature: ef.format(),
|
|
args: this.#abiCoder.decode(ef.inputs, data.slice(4))
|
|
};
|
|
error.reason = error.revert.signature;
|
|
error.message = `execution reverted: ${ error.reason }`
|
|
} catch (e) {
|
|
error.message = `execution reverted (coult not decode custom error)`
|
|
}
|
|
} catch (error) {
|
|
console.log(error); // @TODO: remove
|
|
}
|
|
}
|
|
|
|
// Add the invocation, if available
|
|
const parsed = this.parseTransaction(tx);
|
|
if (parsed) {
|
|
error.invocation = {
|
|
method: parsed.name,
|
|
signature: parsed.signature,
|
|
args: parsed.args
|
|
};
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* Encodes the result data (e.g. from an ``eth_call``) for the
|
|
* specified function (see [[getFunction]] for valid values
|
|
* for %%key%%) with %%values%%.
|
|
*
|
|
* This is generally not used by most developers, unless trying to mock
|
|
* a result from a Contract.
|
|
*/
|
|
encodeFunctionResult(key: FunctionFragment | string, values?: ReadonlyArray<any>): string {
|
|
const fragment = (typeof(key) === "string") ? this.getFunction(key): key;
|
|
return hexlify(this.#abiCoder.encode(fragment.outputs, values || [ ]));
|
|
}
|
|
/*
|
|
spelunk(inputs: Array<ParamType>, values: ReadonlyArray<any>, processfunc: (type: string, value: any) => Promise<any>): Promise<Array<any>> {
|
|
const promises: Array<Promise<>> = [ ];
|
|
const process = function(type: ParamType, value: any): any {
|
|
if (type.baseType === "array") {
|
|
return descend(type.child
|
|
}
|
|
if (type. === "address") {
|
|
}
|
|
};
|
|
|
|
const descend = function (inputs: Array<ParamType>, values: ReadonlyArray<any>) {
|
|
if (inputs.length !== values.length) { throw new Error("length mismatch"); }
|
|
|
|
};
|
|
|
|
const result: Array<any> = [ ];
|
|
values.forEach((value, index) => {
|
|
if (value == null) {
|
|
topics.push(null);
|
|
} else if (param.baseType === "array" || param.baseType === "tuple") {
|
|
logger.throwArgumentError("filtering with tuples or arrays not supported", ("contract." + param.name), value);
|
|
} else if (Array.isArray(value)) {
|
|
topics.push(value.map((value) => encodeTopic(param, value)));
|
|
} else {
|
|
topics.push(encodeTopic(param, value));
|
|
}
|
|
});
|
|
}
|
|
*/
|
|
// Create the filter for the event with search criteria (e.g. for eth_filterLog)
|
|
encodeFilterTopics(eventFragment: EventFragment | string, values: ReadonlyArray<any>): Array<null | string | Array<string>> {
|
|
if (typeof(eventFragment) === "string") {
|
|
eventFragment = this.getEvent(eventFragment);
|
|
}
|
|
|
|
if (values.length > eventFragment.inputs.length) {
|
|
throwError("too many arguments for " + eventFragment.format(), "UNEXPECTED_ARGUMENT", {
|
|
count: values.length,
|
|
expectedCount: eventFragment.inputs.length
|
|
})
|
|
}
|
|
|
|
const topics: Array<null | string | Array<string>> = [];
|
|
if (!eventFragment.anonymous) { topics.push(eventFragment.topicHash); }
|
|
|
|
// @TODO: Use the coders for this; to properly support tuples, etc.
|
|
const encodeTopic = (param: ParamType, value: any): string => {
|
|
if (param.type === "string") {
|
|
return id(value);
|
|
} else if (param.type === "bytes") {
|
|
return keccak256(hexlify(value));
|
|
}
|
|
|
|
if (param.type === "bool" && typeof(value) === "boolean") {
|
|
value = (value ? "0x01": "0x00");
|
|
}
|
|
|
|
if (param.type.match(/^u?int/)) {
|
|
value = toHex(value);
|
|
}
|
|
|
|
// Check addresses are valid
|
|
if (param.type === "address") { this.#abiCoder.encode( [ "address" ], [ value ]); }
|
|
return zeroPadValue(hexlify(value), 32);
|
|
//@TOOD should probably be return toHex(value, 32)
|
|
};
|
|
|
|
values.forEach((value, index) => {
|
|
|
|
const param = (<EventFragment>eventFragment).inputs[index];
|
|
|
|
if (!param.indexed) {
|
|
if (value != null) {
|
|
throwArgumentError("cannot filter non-indexed parameters; must be null", ("contract." + param.name), value);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (value == null) {
|
|
topics.push(null);
|
|
} else if (param.baseType === "array" || param.baseType === "tuple") {
|
|
throwArgumentError("filtering with tuples or arrays not supported", ("contract." + param.name), value);
|
|
} else if (Array.isArray(value)) {
|
|
topics.push(value.map((value) => encodeTopic(param, value)));
|
|
} else {
|
|
topics.push(encodeTopic(param, value));
|
|
}
|
|
});
|
|
|
|
// Trim off trailing nulls
|
|
while (topics.length && topics[topics.length - 1] === null) {
|
|
topics.pop();
|
|
}
|
|
|
|
return topics;
|
|
}
|
|
|
|
encodeEventLog(eventFragment: EventFragment | string, values: ReadonlyArray<any>): { data: string, topics: Array<string> } {
|
|
if (typeof(eventFragment) === "string") {
|
|
eventFragment = this.getEvent(eventFragment);
|
|
}
|
|
|
|
const topics: Array<string> = [ ];
|
|
|
|
const dataTypes: Array<ParamType> = [ ];
|
|
const dataValues: Array<string> = [ ];
|
|
|
|
if (!eventFragment.anonymous) {
|
|
topics.push(eventFragment.topicHash);
|
|
}
|
|
|
|
if (values.length !== eventFragment.inputs.length) {
|
|
throwArgumentError("event arguments/values mismatch", "values", values);
|
|
}
|
|
|
|
eventFragment.inputs.forEach((param, index) => {
|
|
const value = values[index];
|
|
if (param.indexed) {
|
|
if (param.type === "string") {
|
|
topics.push(id(value))
|
|
} else if (param.type === "bytes") {
|
|
topics.push(keccak256(value))
|
|
} else if (param.baseType === "tuple" || param.baseType === "array") {
|
|
// @TODO
|
|
throw new Error("not implemented");
|
|
} else {
|
|
topics.push(this.#abiCoder.encode([ param.type] , [ value ]));
|
|
}
|
|
} else {
|
|
dataTypes.push(param);
|
|
dataValues.push(value);
|
|
}
|
|
});
|
|
|
|
return {
|
|
data: this.#abiCoder.encode(dataTypes , dataValues),
|
|
topics: topics
|
|
};
|
|
}
|
|
|
|
// Decode a filter for the event and the search criteria
|
|
decodeEventLog(eventFragment: EventFragment | string, data: BytesLike, topics?: ReadonlyArray<string>): Result {
|
|
if (typeof(eventFragment) === "string") {
|
|
eventFragment = this.getEvent(eventFragment);
|
|
}
|
|
|
|
if (topics != null && !eventFragment.anonymous) {
|
|
const eventTopic = eventFragment.topicHash;
|
|
if (!isHexString(topics[0], 32) || topics[0].toLowerCase() !== eventTopic) {
|
|
throwArgumentError("fragment/topic mismatch", "topics[0]", topics[0]);
|
|
}
|
|
topics = topics.slice(1);
|
|
}
|
|
|
|
const indexed: Array<ParamType> = [];
|
|
const nonIndexed: Array<ParamType> = [];
|
|
const dynamic: Array<boolean> = [];
|
|
|
|
eventFragment.inputs.forEach((param, index) => {
|
|
if (param.indexed) {
|
|
if (param.type === "string" || param.type === "bytes" || param.baseType === "tuple" || param.baseType === "array") {
|
|
indexed.push(ParamType.from({ type: "bytes32", name: param.name }));
|
|
dynamic.push(true);
|
|
} else {
|
|
indexed.push(param);
|
|
dynamic.push(false);
|
|
}
|
|
} else {
|
|
nonIndexed.push(param);
|
|
dynamic.push(false);
|
|
}
|
|
});
|
|
|
|
const resultIndexed = (topics != null) ? this.#abiCoder.decode(indexed, concat(topics)): null;
|
|
const resultNonIndexed = this.#abiCoder.decode(nonIndexed, data, true);
|
|
|
|
//const result: (Array<any> & { [ key: string ]: any }) = [ ];
|
|
const values: Array<any> = [ ];
|
|
const keys: Array<null | string> = [ ];
|
|
let nonIndexedIndex = 0, indexedIndex = 0;
|
|
eventFragment.inputs.forEach((param, index) => {
|
|
let value = null;
|
|
if (param.indexed) {
|
|
if (resultIndexed == null) {
|
|
value = new Indexed(null);
|
|
|
|
} else if (dynamic[index]) {
|
|
value = new Indexed(resultIndexed[indexedIndex++]);
|
|
|
|
} else {
|
|
try {
|
|
value = resultIndexed[indexedIndex++];
|
|
} catch (error) {
|
|
value = error;
|
|
}
|
|
}
|
|
} else {
|
|
try {
|
|
value = resultNonIndexed[nonIndexedIndex++];
|
|
} catch (error) {
|
|
value = error;
|
|
}
|
|
}
|
|
|
|
values.push(value);
|
|
keys.push(param.name || null);
|
|
});
|
|
|
|
return Result.fromItems(values, keys);
|
|
}
|
|
|
|
/**
|
|
* Parses a transaction, finding the matching function and extracts
|
|
* the parameter values along with other useful function details.
|
|
*
|
|
* If the matching function cannot be found, return null.
|
|
*/
|
|
parseTransaction(tx: { data: string, value?: BigNumberish }): null | TransactionDescription {
|
|
const data = getBytes(tx.data, "tx.data");
|
|
const value = getBigInt((tx.value != null) ? tx.value: 0, "tx.value");
|
|
|
|
const fragment = this.getFunction(hexlify(data.slice(0, 4)));
|
|
|
|
if (!fragment) { return null; }
|
|
|
|
const args = this.#abiCoder.decode(fragment.inputs, data.slice(4));
|
|
return new TransactionDescription(fragment, fragment.selector, args, value);
|
|
}
|
|
|
|
parseCallResult(data: BytesLike): Result {
|
|
throw new Error("@TODO");
|
|
}
|
|
|
|
/**
|
|
* Parses a receipt log, finding the matching event and extracts
|
|
* the parameter values along with other useful event details.
|
|
*
|
|
* If the matching event cannot be found, returns null.
|
|
*/
|
|
parseLog(log: { topics: Array<string>, data: string}): null | LogDescription {
|
|
const fragment = this.getEvent(log.topics[0]);
|
|
|
|
if (!fragment || fragment.anonymous) { return null; }
|
|
|
|
// @TODO: If anonymous, and the only method, and the input count matches, should we parse?
|
|
// Probably not, because just because it is the only event in the ABI does
|
|
// not mean we have the full ABI; maybe just a fragment?
|
|
|
|
|
|
return new LogDescription(fragment, fragment.topicHash, this.decodeEventLog(fragment, log.data, log.topics));
|
|
}
|
|
|
|
/**
|
|
* Parses a revert data, finding the matching error and extracts
|
|
* the parameter values along with other useful error details.
|
|
*
|
|
* If the matching event cannot be found, returns null.
|
|
*/
|
|
parseError(data: BytesLike): null | ErrorDescription {
|
|
const hexData = hexlify(data);
|
|
|
|
const fragment = this.getError(dataSlice(hexData, 0, 4));
|
|
|
|
if (!fragment) { return null; }
|
|
|
|
const args = this.#abiCoder.decode(fragment.inputs, dataSlice(hexData, 4));
|
|
return new ErrorDescription(fragment, fragment.selector, args);
|
|
}
|
|
|
|
/**
|
|
* Creates a new [[Interface]] from the ABI %%value%%.
|
|
*
|
|
* The %%value%% may be provided as an existing [[Interface]] object,
|
|
* a JSON-encoded ABI or any Human-Readable ABI format.
|
|
*/
|
|
static from(value: ReadonlyArray<Fragment | string | JsonFragment> | string | Interface): Interface {
|
|
// Already an Interface, which is immutable
|
|
if (value instanceof Interface) { return value; }
|
|
|
|
// JSON
|
|
if (typeof(value) === "string") { return new Interface(JSON.parse(value)); }
|
|
|
|
// Maybe an interface from an older version, or from a symlinked copy
|
|
if (typeof((<any>value).format) === "function") {
|
|
return new Interface((<any>value).format("json"));
|
|
}
|
|
|
|
// Array of fragments
|
|
return new Interface(value);
|
|
}
|
|
}
|