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authorGreg Hysen <greg.hysen@gmail.com>2018-11-21 02:07:57 +0800
committerGreg Hysen <greg.hysen@gmail.com>2018-11-29 08:38:11 +0800
commit2164b34bf9ca6f38fff93a527ee162b0624b818e (patch)
treef3e2159ce2419bde76d81f930bba451b9bd0ec1c /packages/utils
parentb0ebc6fa14adc08c074bea4d275cc31504c95d55 (diff)
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Ran linter on Calldata
Diffstat (limited to 'packages/utils')
-rw-r--r--packages/utils/src/abi_encoder/calldata.ts505
-rw-r--r--packages/utils/src/abi_encoder/data_type.ts11
2 files changed, 241 insertions, 275 deletions
diff --git a/packages/utils/src/abi_encoder/calldata.ts b/packages/utils/src/abi_encoder/calldata.ts
index e6ce58957..9f91f8495 100644
--- a/packages/utils/src/abi_encoder/calldata.ts
+++ b/packages/utils/src/abi_encoder/calldata.ts
@@ -1,6 +1,6 @@
import ethUtil = require('ethereumjs-util');
-import CommunicationChatBubbleOutline from 'material-ui/SvgIcon';
-var _ = require('lodash');
+const _ = require('lodash');
+import * as Constants from './constants';
export interface DecodingRules {
structsAsObjects: boolean;
@@ -12,77 +12,69 @@ export interface EncodingRules {
}
export abstract class CalldataBlock {
- private name: string;
- private signature: string;
- private offsetInBytes: number;
- private headerSizeInBytes: number;
- private bodySizeInBytes: number;
- private relocatable: boolean;
- private parentName: string;
+ private readonly _signature: string;
+ private readonly _parentName: string;
+ private _name: string;
+ private _offsetInBytes: number;
+ private _headerSizeInBytes: number;
+ private _bodySizeInBytes: number;
constructor(
name: string,
signature: string,
parentName: string,
- /*offsetInBytes: number,*/ headerSizeInBytes: number,
+ headerSizeInBytes: number,
bodySizeInBytes: number,
- relocatable: boolean,
) {
- this.name = name;
- this.signature = signature;
- this.parentName = parentName;
- this.offsetInBytes = 0;
- this.headerSizeInBytes = headerSizeInBytes;
- this.bodySizeInBytes = bodySizeInBytes;
- this.relocatable = relocatable;
+ this._name = name;
+ this._signature = signature;
+ this._parentName = parentName;
+ this._offsetInBytes = 0;
+ this._headerSizeInBytes = headerSizeInBytes;
+ this._bodySizeInBytes = bodySizeInBytes;
}
- protected setHeaderSize(headerSizeInBytes: number) {
- this.headerSizeInBytes = headerSizeInBytes;
+ protected _setHeaderSize(headerSizeInBytes: number): void {
+ this._headerSizeInBytes = headerSizeInBytes;
}
- protected setBodySize(bodySizeInBytes: number) {
- this.bodySizeInBytes = bodySizeInBytes;
+ protected _setBodySize(bodySizeInBytes: number): void {
+ this._bodySizeInBytes = bodySizeInBytes;
}
- protected setName(name: string) {
- this.name = name;
+ protected _setName(name: string): void {
+ this._name = name;
}
public getName(): string {
- return this.name;
+ return this._name;
}
public getParentName(): string {
- return this.parentName;
+ return this._parentName;
}
public getSignature(): string {
- return this.signature;
+ return this._signature;
}
-
- public isRelocatable(): boolean {
- return this.relocatable;
- }
-
public getHeaderSizeInBytes(): number {
- return this.headerSizeInBytes;
+ return this._headerSizeInBytes;
}
public getBodySizeInBytes(): number {
- return this.bodySizeInBytes;
+ return this._bodySizeInBytes;
}
public getSizeInBytes(): number {
- return this.headerSizeInBytes + this.bodySizeInBytes;
+ return this.getHeaderSizeInBytes() + this.getBodySizeInBytes();
}
public getOffsetInBytes(): number {
- return this.offsetInBytes;
+ return this._offsetInBytes;
}
- public setOffset(offsetInBytes: number) {
- this.offsetInBytes = offsetInBytes;
+ public setOffset(offsetInBytes: number): void {
+ this._offsetInBytes = offsetInBytes;
}
public computeHash(): Buffer {
@@ -96,81 +88,80 @@ export abstract class CalldataBlock {
}
export class PayloadCalldataBlock extends CalldataBlock {
- private payload: Buffer;
+ private readonly _payload: Buffer;
constructor(
name: string,
signature: string,
parentName: string,
- /*offsetInBytes: number,*/ relocatable: boolean,
payload: Buffer,
) {
const headerSizeInBytes = 0;
const bodySizeInBytes = payload.byteLength;
- super(name, signature, parentName, headerSizeInBytes, bodySizeInBytes, relocatable);
- this.payload = payload;
+ super(name, signature, parentName, headerSizeInBytes, bodySizeInBytes);
+ this._payload = payload;
}
public toBuffer(): Buffer {
- return this.payload;
+ return this._payload;
}
public getRawData(): Buffer {
- return this.payload;
+ return this._payload;
}
}
export class DependentCalldataBlock extends CalldataBlock {
- public static DEPENDENT_PAYLOAD_SIZE_IN_BYTES = 32;
- public static RAW_DATA_START = new Buffer('<');
- public static RAW_DATA_END = new Buffer('>');
- private parent: CalldataBlock;
- private dependency: CalldataBlock;
- private aliasFor: CalldataBlock | undefined;
+ public static readonly RAW_DATA_START = new Buffer('<');
+ public static readonly RAW_DATA_END = new Buffer('>');
+ private static readonly _DEPENDENT_PAYLOAD_SIZE_IN_BYTES = 32;
+ private static readonly _EMPTY_HEADER_SIZE = 0;
+ private readonly _parent: CalldataBlock;
+ private readonly _dependency: CalldataBlock;
+ private _aliasFor: CalldataBlock | undefined;
constructor(
name: string,
signature: string,
parentName: string,
- relocatable: boolean,
dependency: CalldataBlock,
parent: CalldataBlock,
) {
- const headerSizeInBytes = 0;
- const bodySizeInBytes = DependentCalldataBlock.DEPENDENT_PAYLOAD_SIZE_IN_BYTES;
- super(name, signature, parentName, headerSizeInBytes, bodySizeInBytes, relocatable);
- this.parent = parent;
- this.dependency = dependency;
- this.aliasFor = undefined;
+ const headerSizeInBytes = DependentCalldataBlock._EMPTY_HEADER_SIZE;
+ const bodySizeInBytes = DependentCalldataBlock._DEPENDENT_PAYLOAD_SIZE_IN_BYTES;
+ super(name, signature, parentName, headerSizeInBytes, bodySizeInBytes);
+ this._parent = parent;
+ this._dependency = dependency;
+ this._aliasFor = undefined;
}
public toBuffer(): Buffer {
const destinationOffset =
- this.aliasFor !== undefined ? this.aliasFor.getOffsetInBytes() : this.dependency.getOffsetInBytes();
- const parentOffset = this.parent.getOffsetInBytes();
- const parentHeaderSize = this.parent.getHeaderSizeInBytes();
+ this._aliasFor !== undefined ? this._aliasFor.getOffsetInBytes() : this._dependency.getOffsetInBytes();
+ const parentOffset = this._parent.getOffsetInBytes();
+ const parentHeaderSize = this._parent.getHeaderSizeInBytes();
const pointer: number = destinationOffset - (parentOffset + parentHeaderSize);
- const pointerBuf = ethUtil.toBuffer(`0x${pointer.toString(16)}`);
+ const pointerBuf = ethUtil.toBuffer(`0x${pointer.toString(Constants.HEX_BASE)}`);
const evmWordWidthInBytes = 32;
const pointerBufPadded = ethUtil.setLengthLeft(pointerBuf, evmWordWidthInBytes);
return pointerBufPadded;
}
public getDependency(): CalldataBlock {
- return this.dependency;
+ return this._dependency;
}
- public setAlias(block: CalldataBlock) {
- this.aliasFor = block;
- this.setName(`${this.getName()} (alias for ${block.getName()})`);
+ public setAlias(block: CalldataBlock): void {
+ this._aliasFor = block;
+ this._setName(`${this.getName()} (alias for ${block.getName()})`);
}
public getAlias(): CalldataBlock | undefined {
- return this.aliasFor;
+ return this._aliasFor;
}
public getRawData(): Buffer {
- const dependencyRawData = this.dependency.getRawData();
+ const dependencyRawData = this._dependency.getRawData();
const rawDataComponents: Buffer[] = [];
rawDataComponents.push(DependentCalldataBlock.RAW_DATA_START);
rawDataComponents.push(dependencyRawData);
@@ -181,24 +172,21 @@ export class DependentCalldataBlock extends CalldataBlock {
}
export class MemberCalldataBlock extends CalldataBlock {
- private static DEPENDENT_PAYLOAD_SIZE_IN_BYTES = 32;
- private header: Buffer | undefined;
- private members: CalldataBlock[];
- private contiguous: boolean;
+ private _header: Buffer | undefined;
+ private _members: CalldataBlock[];
- constructor(name: string, signature: string, parentName: string, relocatable: boolean, contiguous: boolean) {
- super(name, signature, parentName, 0, 0, relocatable);
- this.members = [];
- this.header = undefined;
- this.contiguous = contiguous;
+ constructor(name: string, signature: string, parentName: string) {
+ super(name, signature, parentName, 0, 0);
+ this._members = [];
+ this._header = undefined;
}
public getRawData(): Buffer {
const rawDataComponents: Buffer[] = [];
- if (this.header !== undefined) {
- rawDataComponents.push(this.header);
+ if (this._header !== undefined) {
+ rawDataComponents.push(this._header);
}
- _.each(this.members, (member: CalldataBlock) => {
+ _.each(this._members, (member: CalldataBlock) => {
const memberBuffer = member.getRawData();
rawDataComponents.push(memberBuffer);
});
@@ -207,91 +195,79 @@ export class MemberCalldataBlock extends CalldataBlock {
return rawData;
}
- public setMembers(members: CalldataBlock[]) {
- let bodySizeInBytes = 0;
- _.each(members, (member: CalldataBlock) => {
- bodySizeInBytes += member.getSizeInBytes();
- });
- this.members = members;
- this.setBodySize(0);
- }
-
- public isContiguous(): boolean {
- return true;
+ public setMembers(members: CalldataBlock[]): void {
+ this._members = members;
}
- public setHeader(header: Buffer) {
- this.setHeaderSize(header.byteLength);
- this.header = header;
+ public setHeader(header: Buffer): void {
+ this._setHeaderSize(header.byteLength);
+ this._header = header;
}
public toBuffer(): Buffer {
- if (this.header !== undefined) return this.header;
+ if (this._header !== undefined) {
+ return this._header;
+ }
return new Buffer('');
}
public getMembers(): CalldataBlock[] {
- return this.members;
+ return this._members;
}
}
class Queue<T> {
- private store: T[] = [];
- push(val: T) {
- this.store.push(val);
+ private _store: T[] = [];
+ public push(val: T): void {
+ this._store.push(val);
}
- pushFront(val: T) {
- this.store.unshift(val);
+ public pushFront(val: T): void {
+ this._store.unshift(val);
}
- pop(): T | undefined {
- return this.store.shift();
+ public pop(): T | undefined {
+ return this._store.shift();
}
- popBack(): T | undefined {
- if (this.store.length === 0) return undefined;
- const backElement = this.store.splice(-1, 1)[0];
+ public popBack(): T | undefined {
+ if (this._store.length === 0) {
+ return undefined;
+ }
+ const backElement = this._store.splice(-1, 1)[0];
return backElement;
}
- merge(q: Queue<T>) {
- this.store = this.store.concat(q.store);
+ public merge(q: Queue<T>): void {
+ this._store = this._store.concat(q._store);
}
- mergeFront(q: Queue<T>) {
- this.store = q.store.concat(this.store);
+ public mergeFront(q: Queue<T>): void {
+ this._store = q._store.concat(this._store);
}
- getStore(): T[] {
- return this.store;
+ public getStore(): T[] {
+ return this._store;
}
- peek(): T | undefined {
- return this.store.length >= 0 ? this.store[0] : undefined;
+ public peek(): T | undefined {
+ return this._store.length >= 0 ? this._store[0] : undefined;
}
}
export class Calldata {
- private selector: string;
- private rules: EncodingRules;
- private sizeInBytes: number;
- private root: CalldataBlock | undefined;
-
- constructor(rules: EncodingRules) {
- this.selector = '';
- this.rules = rules;
- this.sizeInBytes = 0;
- this.root = undefined;
- }
+ private readonly _rules: EncodingRules;
+ private _selector: string;
+ private _sizeInBytes: number;
+ private _root: CalldataBlock | undefined;
- private createQueue(block: CalldataBlock): Queue<CalldataBlock> {
+ private static _createQueue(block: CalldataBlock): Queue<CalldataBlock> {
const blockQueue = new Queue<CalldataBlock>();
// Base Case
- if (block instanceof MemberCalldataBlock === false) {
+ if (!(block instanceof MemberCalldataBlock)) {
blockQueue.push(block);
return blockQueue;
}
// This is a Member Block
- const memberBlock = block as MemberCalldataBlock;
+ const memberBlock = block;
_.eachRight(memberBlock.getMembers(), (member: CalldataBlock) => {
if (member instanceof MemberCalldataBlock) {
- blockQueue.mergeFront(this.createQueue(member));
+ blockQueue.mergeFront(Calldata._createQueue(member));
} else {
blockQueue.pushFront(member);
}
@@ -300,9 +276,9 @@ export class Calldata {
// Children
_.each(memberBlock.getMembers(), (member: CalldataBlock) => {
if (member instanceof DependentCalldataBlock && member.getAlias() === undefined) {
- let dependency = member.getDependency();
+ const dependency = member.getDependency();
if (dependency instanceof MemberCalldataBlock) {
- blockQueue.merge(this.createQueue(dependency));
+ blockQueue.merge(Calldata._createQueue(dependency));
} else {
blockQueue.push(dependency);
}
@@ -313,91 +289,15 @@ export class Calldata {
return blockQueue;
}
- private generateAnnotatedHexString(): string {
- let hexValue = `${this.selector}`;
- if (this.root === undefined) {
- throw new Error('expected root');
- }
-
- const valueQueue = this.createQueue(this.root);
-
- let block: CalldataBlock | undefined;
- let offset = 0;
- const functionBlock = valueQueue.peek();
- let functionName: string = functionBlock === undefined ? '' : functionBlock.getName();
- while ((block = valueQueue.pop()) !== undefined) {
- // Set f
-
- // Process each block 1 word at a time
- const size = block.getSizeInBytes();
- const name = block.getName();
- const parentName = block.getParentName();
-
- //const ancestrialNamesOffset = name.startsWith('ptr<') ? 4 : 0;
- //const parentOffset = name.lastIndexOf(parentName);
- const prettyName = name.replace(`${parentName}.`, '').replace(`${functionName}.`, ''); //.replace(`${parentName}[`, '[');
- const signature = block.getSignature();
-
- // Current offset
- let offsetStr = '';
-
- // If this block is empty then it's a newline
- let value = '';
- let nameStr = '';
- let line = '';
- if (size === 0) {
- offsetStr = ' '.repeat(10);
- value = ' '.repeat(74);
- nameStr = `### ${prettyName.padEnd(80)}`;
- line = `\n${offsetStr}${value}${nameStr}`;
- } else {
- offsetStr = `0x${offset.toString(16)}`.padEnd(10, ' ');
- value = ethUtil.stripHexPrefix(ethUtil.bufferToHex(block.toBuffer().slice(0, 32))).padEnd(74);
- if (block instanceof MemberCalldataBlock) {
- nameStr = `### ${prettyName.padEnd(80)}`;
- line = `\n${offsetStr}${value}${nameStr}`;
- } else {
- nameStr = ` ${prettyName.padEnd(80)}`;
- line = `${offsetStr}${value}${nameStr}`;
- }
- }
-
- for (let j = 32; j < size; j += 32) {
- offsetStr = `0x${(offset + j).toString(16)}`.padEnd(10, ' ');
- value = ethUtil.stripHexPrefix(ethUtil.bufferToHex(block.toBuffer().slice(j, j + 32))).padEnd(74);
- nameStr = ' '.repeat(40);
-
- line = `${line}\n${offsetStr}${value}${nameStr}`;
- }
-
- // Append to hex value
- hexValue = `${hexValue}\n${line}`;
- offset += size;
- }
-
- return hexValue;
- }
-
- private generateCondensedHexString(): string {
- let selectorBuffer = ethUtil.toBuffer(this.selector);
- if (this.root === undefined) {
- throw new Error('expected root');
- }
-
- const valueQueue = this.createQueue(this.root);
- const valueBufs: Buffer[] = [selectorBuffer];
- let block: CalldataBlock | undefined;
- while ((block = valueQueue.pop()) !== undefined) {
- valueBufs.push(block.toBuffer());
- }
-
- const combinedBuffers = Buffer.concat(valueBufs);
- const hexValue = ethUtil.bufferToHex(combinedBuffers);
- return hexValue;
+ public constructor(rules: EncodingRules) {
+ this._rules = rules;
+ this._selector = '';
+ this._sizeInBytes = 0;
+ this._root = undefined;
}
- public optimize() {
- if (this.root === undefined) {
+ public optimize(): void {
+ if (this._root === undefined) {
throw new Error('expected root');
}
@@ -405,14 +305,14 @@ export class Calldata {
// 1. Create a queue of subtrees by hash
// Note that they are ordered the same as
- const subtreeQueue = this.createQueue(this.root);
+ const subtreeQueue = Calldata._createQueue(this._root);
let block: CalldataBlock | undefined;
- while ((block = subtreeQueue.popBack()) !== undefined) {
+ for (block = subtreeQueue.popBack(); block !== undefined; block = subtreeQueue.popBack()) {
if (block instanceof DependentCalldataBlock) {
- const blockHashBuf = block.getDependency().computeHash();
- const blockHash = ethUtil.bufferToHex(blockHashBuf);
- if (blockHash in blocksByHash) {
- const blockWithSameHash = blocksByHash[blockHash];
+ const dependencyBlockHashBuf = block.getDependency().computeHash();
+ const dependencyBlockHash = ethUtil.bufferToHex(dependencyBlockHashBuf);
+ if (dependencyBlockHash in blocksByHash) {
+ const blockWithSameHash = blocksByHash[dependencyBlockHash];
if (blockWithSameHash !== block.getDependency()) {
block.setAlias(blockWithSameHash);
}
@@ -422,69 +322,142 @@ export class Calldata {
const blockHashBuf = block.computeHash();
const blockHash = ethUtil.bufferToHex(blockHashBuf);
- if (blockHash in blocksByHash === false) {
+ if (!(blockHash in blocksByHash)) {
blocksByHash[blockHash] = block;
}
}
}
public toHexString(): string {
- if (this.root === undefined) {
+ if (this._root === undefined) {
throw new Error('expected root');
}
- if (this.rules.optimize) this.optimize();
+ if (this._rules.optimize) {
+ this.optimize();
+ }
- const offsetQueue = this.createQueue(this.root);
+ const offsetQueue = Calldata._createQueue(this._root);
let block: CalldataBlock | undefined;
let offset = 0;
- while ((block = offsetQueue.pop()) !== undefined) {
+ for (block = offsetQueue.pop(); block !== undefined; block = offsetQueue.pop()) {
block.setOffset(offset);
offset += block.getSizeInBytes();
}
- const hexValue = this.rules.annotate ? this.generateAnnotatedHexString() : this.generateCondensedHexString();
+ const hexValue = this._rules.annotate ? this._generateAnnotatedHexString() : this._generateCondensedHexString();
return hexValue;
}
public getSelectorHex(): string {
- return this.selector;
+ return this._selector;
}
public getSizeInBytes(): number {
- return this.sizeInBytes;
+ return this._sizeInBytes;
}
- public toAnnotatedString(): string {
- return '';
+ public setRoot(block: CalldataBlock): void {
+ this._root = block;
+ this._sizeInBytes += block.getSizeInBytes();
}
- public setRoot(block: CalldataBlock) {
- this.root = block;
- this.sizeInBytes += block.getSizeInBytes();
+ public setSelector(selector: string): void {
+ this._selector = selector.startsWith('0x') ? selector : `$0x${selector}`;
+ if (this._selector.length !== Constants.HEX_SELECTOR_LENGTH_IN_CHARS) {
+ throw new Error(`Invalid selector '${this._selector}'`);
+ }
+ this._sizeInBytes += Constants.HEX_SELECTOR_LENGTH_IN_BYTES; // @TODO: Used to be += 8. Bad?
}
- public setSelector(selector: string) {
- // Ensure we have a 0x prefix
- if (selector.startsWith('0x')) {
- this.selector = selector;
- } else {
- this.selector = `$0x${selector}`;
+ private _generateAnnotatedHexString(): string {
+ let hexValue = `${this._selector}`;
+ if (this._root === undefined) {
+ throw new Error('expected root');
}
- // The selector must be 10 characters: '0x' followed by 4 bytes (two hex chars per byte)
- if (this.selector.length !== 10) {
- throw new Error(`Invalid selector '${this.selector}'`);
+ const valueQueue = Calldata._createQueue(this._root);
+
+ let block: CalldataBlock | undefined;
+ let offset = 0;
+ const functionBlock = valueQueue.peek();
+ const functionName: string = functionBlock === undefined ? '' : functionBlock.getName();
+ for (block = valueQueue.pop(); block !== undefined; block = valueQueue.pop()) {
+ // Process each block 1 word at a time
+ const size = block.getSizeInBytes();
+ const name = block.getName();
+ const parentName = block.getParentName();
+ const prettyName = name.replace(`${parentName}.`, '').replace(`${functionName}.`, '');
+
+ // Current offset
+ let offsetStr = '';
+
+ // If this block is empty then it's a newline
+ const offsetPadding = 10;
+ const valuePadding = 74;
+ const namePadding = 80;
+ const evmWordStartIndex = 0;
+ const emptySize = 0;
+ let value = '';
+ let nameStr = '';
+ let line = '';
+ if (size === emptySize) {
+ offsetStr = ' '.repeat(offsetPadding);
+ value = ' '.repeat(valuePadding);
+ nameStr = `### ${prettyName.padEnd(namePadding)}`;
+ line = `\n${offsetStr}${value}${nameStr}`;
+ } else {
+ offsetStr = `0x${offset.toString(Constants.HEX_BASE)}`.padEnd(offsetPadding);
+ value = ethUtil.stripHexPrefix(ethUtil.bufferToHex(block.toBuffer().slice(evmWordStartIndex, Constants.EVM_WORD_WIDTH_IN_BYTES))).padEnd(valuePadding);
+ if (block instanceof MemberCalldataBlock) {
+ nameStr = `### ${prettyName.padEnd(namePadding)}`;
+ line = `\n${offsetStr}${value}${nameStr}`;
+ } else {
+ nameStr = ` ${prettyName.padEnd(namePadding)}`;
+ line = `${offsetStr}${value}${nameStr}`;
+ }
+ }
+
+ for (let j = Constants.EVM_WORD_WIDTH_IN_BYTES; j < size; j += Constants.EVM_WORD_WIDTH_IN_BYTES) {
+ offsetStr = `0x${(offset + j).toString(Constants.HEX_BASE)}`.padEnd(offsetPadding);
+ value = ethUtil.stripHexPrefix(ethUtil.bufferToHex(block.toBuffer().slice(j, j + Constants.EVM_WORD_WIDTH_IN_BYTES))).padEnd(valuePadding);
+ nameStr = ' '.repeat(namePadding);
+ line = `${line}\n${offsetStr}${value}${nameStr}`;
+ }
+
+ // Append to hex value
+ hexValue = `${hexValue}\n${line}`;
+ offset += size;
+ }
+
+ return hexValue;
+ }
+
+ private _generateCondensedHexString(): string {
+ const selectorBuffer = ethUtil.toBuffer(this._selector);
+ if (this._root === undefined) {
+ throw new Error('expected root');
+ }
+
+ const valueQueue = Calldata._createQueue(this._root);
+ const valueBufs: Buffer[] = [selectorBuffer];
+ let block: CalldataBlock | undefined;
+ for (block = valueQueue.pop(); block !== undefined; block = valueQueue.pop()) {
+ valueBufs.push(block.toBuffer());
}
- this.sizeInBytes += 8;
+
+ const combinedBuffers = Buffer.concat(valueBufs);
+ const hexValue = ethUtil.bufferToHex(combinedBuffers);
+ return hexValue;
}
}
export class RawCalldata {
- private value: Buffer;
- private offset: number; // tracks current offset into raw calldata; used for parsing
- private selector: string;
- private scopes: Queue<number>;
+ private static readonly _INITIAL_OFFSET = 0;
+ private readonly _value: Buffer;
+ private readonly _selector: string;
+ private readonly _scopes: Queue<number>;
+ private _offset: number; // tracks current offset into raw calldata; used for parsing
constructor(value: string | Buffer, hasSelectorPrefix: boolean = true) {
if (typeof value === 'string' && !value.startsWith('0x')) {
@@ -492,21 +465,21 @@ export class RawCalldata {
}
const valueBuf = ethUtil.toBuffer(value);
if (hasSelectorPrefix) {
- this.selector = ethUtil.bufferToHex(valueBuf.slice(0, 4));
- this.value = valueBuf.slice(4); // disregard selector
+ this._selector = ethUtil.bufferToHex(valueBuf.slice(Constants.HEX_SELECTOR_BYTE_OFFSET_IN_CALLDATA, Constants.HEX_SELECTOR_LENGTH_IN_BYTES));
+ this._value = valueBuf.slice(Constants.HEX_SELECTOR_LENGTH_IN_BYTES); // disregard selector
} else {
- this.selector = '0x';
- this.value = valueBuf;
+ this._selector = '0x';
+ this._value = valueBuf;
}
- this.offset = 0;
- this.scopes = new Queue<number>();
- this.scopes.push(0);
+ this._scopes = new Queue<number>();
+ this._scopes.push(RawCalldata._INITIAL_OFFSET);
+ this._offset = RawCalldata._INITIAL_OFFSET;
}
public popBytes(lengthInBytes: number): Buffer {
- const value = this.value.slice(this.offset, this.offset + lengthInBytes);
- this.setOffset(this.offset + lengthInBytes);
+ const value = this._value.slice(this._offset, this._offset + lengthInBytes);
+ this.setOffset(this._offset + lengthInBytes);
return value;
}
@@ -521,28 +494,28 @@ export class RawCalldata {
}
public readBytes(from: number, to: number): Buffer {
- const value = this.value.slice(from, to);
+ const value = this._value.slice(from, to);
return value;
}
- public setOffset(offsetInBytes: number) {
- this.offset = offsetInBytes;
+ public setOffset(offsetInBytes: number): void {
+ this._offset = offsetInBytes;
}
- public startScope() {
- this.scopes.pushFront(this.offset);
+ public startScope(): void {
+ this._scopes.pushFront(this._offset);
}
- public endScope() {
- this.scopes.pop();
+ public endScope(): void {
+ this._scopes.pop();
}
public getOffset(): number {
- return this.offset;
+ return this._offset;
}
- public toAbsoluteOffset(relativeOffset: number) {
- const scopeOffset = this.scopes.peek();
+ public toAbsoluteOffset(relativeOffset: number): number {
+ const scopeOffset = this._scopes.peek();
if (scopeOffset === undefined) {
throw new Error(`Tried to access undefined scope.`);
}
@@ -551,6 +524,6 @@ export class RawCalldata {
}
public getSelector(): string {
- return this.selector;
+ return this._selector;
}
}
diff --git a/packages/utils/src/abi_encoder/data_type.ts b/packages/utils/src/abi_encoder/data_type.ts
index 80797c563..926023468 100644
--- a/packages/utils/src/abi_encoder/data_type.ts
+++ b/packages/utils/src/abi_encoder/data_type.ts
@@ -78,7 +78,6 @@ export abstract class PayloadDataType extends DataType {
name,
signature,
parentName,
- /*offsetInBytes,*/ relocatable,
encodedValue,
);
return block;
@@ -116,12 +115,10 @@ export abstract class DependentDataType extends DataType {
const name = this.getDataItem().name;
const signature = this.getSignature();
const parentName = parentBlock === undefined ? '' : parentBlock.getName();
- const relocatable = false;
const block = new DependentCalldataBlock(
name,
signature,
parentName,
- relocatable,
dependencyBlock,
parentBlock,
);
@@ -235,9 +232,7 @@ export abstract class MemberDataType extends DataType {
const methodBlock: MemberCalldataBlock = new MemberCalldataBlock(
this.getDataItem().name,
this.getSignature(),
- parentName,
- this.isStatic(),
- false,
+ parentName
);
let members = this.members;
@@ -262,9 +257,7 @@ export abstract class MemberDataType extends DataType {
const methodBlock: MemberCalldataBlock = new MemberCalldataBlock(
this.getDataItem().name,
this.getSignature(),
- parentName,
- this.isStatic(),
- false,
+ parentName
);
const memberBlocks: CalldataBlock[] = [];
let childMap = _.cloneDeep(this.memberMap);