mirror of
https://github.com/Xahau/xahau.js.git
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Added Linting with ESLint (#72)
* added linting, but currently the linting will fail on all files that have not been refactored.
This commit is contained in:
@@ -1,98 +1,101 @@
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import { strict as assert } from 'assert'
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import { makeClass } from '../utils/make-class'
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import { Enums } from '../enums'
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import { slice, parseBytes } from '../utils/bytes-utils'
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import { strict as assert } from "assert";
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import { makeClass } from "../utils/make-class";
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import { Enums } from "../enums";
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import { slice, parseBytes } from "../utils/bytes-utils";
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const BinaryParser = makeClass({
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BinaryParser (buf) {
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this._buf = parseBytes(buf, Uint8Array)
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this._length = this._buf.length
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this._cursor = 0
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const BinaryParser = makeClass(
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{
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BinaryParser(buf) {
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this._buf = parseBytes(buf, Uint8Array);
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this._length = this._buf.length;
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this._cursor = 0;
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},
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skip(n) {
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this._cursor += n;
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},
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read(n, to = Uint8Array) {
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const start = this._cursor;
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const end = this._cursor + n;
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assert(end <= this._buf.length);
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this._cursor = end;
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return slice(this._buf, start, end, to);
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},
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readUIntN(n) {
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return this.read(n, Array).reduce((a, b) => (a << 8) | b) >>> 0;
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},
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readUInt8() {
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return this._buf[this._cursor++];
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},
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readUInt16() {
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return this.readUIntN(2);
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},
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readUInt32() {
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return this.readUIntN(4);
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},
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pos() {
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return this._cursor;
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},
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size() {
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return this._buf.length;
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},
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end(customEnd) {
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const cursor = this.pos();
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return (
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cursor >= this._length || (customEnd !== null && cursor >= customEnd)
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);
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},
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readVL() {
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return this.read(this.readVLLength());
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},
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readVLLength() {
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const b1 = this.readUInt8();
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if (b1 <= 192) {
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return b1;
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} else if (b1 <= 240) {
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const b2 = this.readUInt8();
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return 193 + (b1 - 193) * 256 + b2;
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} else if (b1 <= 254) {
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const b2 = this.readUInt8();
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const b3 = this.readUInt8();
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return 12481 + (b1 - 241) * 65536 + b2 * 256 + b3;
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}
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throw new Error("Invalid varint length indicator");
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},
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readFieldOrdinal() {
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const tagByte = this.readUInt8();
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const type = (tagByte & 0xf0) >>> 4 || this.readUInt8();
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const nth = tagByte & 0x0f || this.readUInt8();
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return (type << 16) | nth;
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},
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readField() {
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return Enums.Field.from(this.readFieldOrdinal());
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},
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readType(type) {
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return type.fromParser(this);
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},
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typeForField(field) {
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return field.associatedType;
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},
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readFieldValue(field) {
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const kls = this.typeForField(field);
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if (!kls) {
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throw new Error(`unsupported: (${field.name}, ${field.type.name})`);
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}
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const sizeHint = field.isVLEncoded ? this.readVLLength() : null;
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const value = kls.fromParser(this, sizeHint);
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if (value === undefined) {
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throw new Error(
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`fromParser for (${field.name}, ${field.type.name}) -> undefined `
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);
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}
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return value;
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},
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readFieldAndValue() {
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const field = this.readField();
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return [field, this.readFieldValue(field)];
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},
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},
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skip (n) {
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this._cursor += n
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},
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read (n, to = Uint8Array) {
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const start = this._cursor
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const end = this._cursor + n
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assert(end <= this._buf.length)
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this._cursor = end
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return slice(this._buf, start, end, to)
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},
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readUIntN (n) {
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return this.read(n, Array).reduce((a, b) => a << 8 | b) >>> 0
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},
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readUInt8 () {
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return this._buf[this._cursor++]
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},
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readUInt16 () {
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return this.readUIntN(2)
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},
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readUInt32 () {
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return this.readUIntN(4)
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},
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pos () {
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return this._cursor
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},
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size () {
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return this._buf.length
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},
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end (customEnd) {
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const cursor = this.pos()
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return (cursor >= this._length) || (customEnd !== null &&
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cursor >= customEnd)
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},
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readVL () {
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return this.read(this.readVLLength())
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},
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readVLLength () {
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const b1 = this.readUInt8()
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if (b1 <= 192) {
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return b1
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} else if (b1 <= 240) {
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const b2 = this.readUInt8()
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return 193 + (b1 - 193) * 256 + b2
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} else if (b1 <= 254) {
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const b2 = this.readUInt8()
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const b3 = this.readUInt8()
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return 12481 + (b1 - 241) * 65536 + b2 * 256 + b3
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}
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throw new Error('Invalid varint length indicator')
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},
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readFieldOrdinal () {
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const tagByte = this.readUInt8()
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const type = (tagByte & 0xF0) >>> 4 || this.readUInt8()
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const nth = tagByte & 0x0F || this.readUInt8()
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return type << 16 | nth
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},
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readField () {
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return Enums.Field.from(this.readFieldOrdinal())
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},
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readType (type) {
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return type.fromParser(this)
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},
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typeForField (field) {
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return field.associatedType
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},
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readFieldValue (field) {
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const kls = this.typeForField(field)
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if (!kls) {
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throw new Error(`unsupported: (${field.name}, ${field.type.name})`)
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}
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const sizeHint = field.isVLEncoded ? this.readVLLength() : null
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const value = kls.fromParser(this, sizeHint)
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if (value === undefined) {
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throw new Error(
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`fromParser for (${field.name}, ${field.type.name}) -> undefined `)
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}
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return value
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},
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readFieldAndValue () {
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const field = this.readField()
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return [field, this.readFieldValue(field)]
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}
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}, undefined)
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undefined
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);
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export {
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BinaryParser
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}
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export { BinaryParser };
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