Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 | 1x 1x 1x 68x 68x 68x 64x 4x 1x 1x 69x 69x 69x 69x 69x 69x 138x 138x 138x 69x 70x 70x 3x 60x 60x 60x 60x 60x 120x 120x 60x 60x 60x 1x 1x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 12x 9x 2x 7x 1x 2x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x | import { BufferReader, BufferWriter } from '@node-dlc/bufio';
import { MessageType } from '../MessageType';
import { IDlcMessage } from './DlcMessage';
export abstract class EventDescriptor {
public static deserialize(
buf: Buffer,
): EnumEventDescriptorV0 | DigitDecompositionEventDescriptorV0 {
const reader = new BufferReader(buf);
const type = Number(reader.readBigSize());
switch (type) {
case MessageType.EnumEventDescriptorV0:
return EnumEventDescriptorV0.deserialize(buf);
case MessageType.DigitDecompositionEventDescriptorV0:
return DigitDecompositionEventDescriptorV0.deserialize(buf);
default:
throw new Error(
`Payout function TLV type must be EnumEventDescriptorV0 or DigitDecompositionEventDescriptorV0`,
);
}
}
public abstract type: number;
public abstract length: bigint;
public abstract toJSON():
| IEnumEventDescriptorV0JSON
| IDigitDecompositionEventDescriptorV0JSON;
public abstract serialize(): Buffer;
}
/**
* EnumEventDescriptor V0 is a simple enumeration of outcomes
*/
export class EnumEventDescriptorV0
extends EventDescriptor
implements IDlcMessage {
public static type = MessageType.EnumEventDescriptorV0;
/**
* Deserializes an enum_event_descriptor_v0 message
* @param buf
*/
public static deserialize(buf: Buffer): EnumEventDescriptorV0 {
const instance = new EnumEventDescriptorV0();
const reader = new BufferReader(buf);
reader.readBigSize(); // read type
instance.length = reader.readBigSize(); // need to fix this
reader.readUInt16BE(); // num_outcomes
while (!reader.eof) {
const outcomeLen = reader.readBigSize();
const outcomeBuf = reader.readBytes(Number(outcomeLen));
instance.outcomes.push(outcomeBuf.toString());
}
return instance;
}
/**
* The type for enum_event_descriptor_v0 message. enum_event_descriptor_v0 = 55302
*/
public type = EnumEventDescriptorV0.type;
public length: bigint;
public outcomes: string[] = [];
/**
* Converts enum_event_descriptor_v0 to JSON
*/
public toJSON(): IEnumEventDescriptorV0JSON {
return {
type: this.type,
outcomes: this.outcomes,
};
}
/**
* Serializes the enum_event_descriptor_v0 message into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeBigSize(this.type);
const dataWriter = new BufferWriter();
dataWriter.writeUInt16BE(this.outcomes.length);
for (const outcome of this.outcomes) {
dataWriter.writeBigSize(outcome.length);
dataWriter.writeBytes(Buffer.from(outcome));
}
writer.writeBigSize(dataWriter.size);
writer.writeBytes(dataWriter.toBuffer());
return writer.toBuffer();
}
}
/**
* DigitDecompositionEventDescriptorV0 V0 is a simple enumeration of outcomes
*/
export class DigitDecompositionEventDescriptorV0
extends EventDescriptor
implements IDlcMessage {
public static type = MessageType.DigitDecompositionEventDescriptorV0;
/**
* Deserializes an digit_decomposition_event_descriptor_v0 message
* @param buf
*/
public static deserialize(buf: Buffer): DigitDecompositionEventDescriptorV0 {
const instance = new DigitDecompositionEventDescriptorV0();
const reader = new BufferReader(buf);
reader.readBigSize(); // read type
instance.length = reader.readBigSize(); // need to fix this
/**
* NOTE: BASE IS INCORRECT FORMAT FOR DLC SPEC (SHOULD BE BIGSIZE)
* Will be fixed in oracle_announcement_v1
* https://github.com/discreetlogcontracts/dlcspecs/blob/master/Oracle.md#version-0-digit_decomposition_event_descriptor
*/
instance.base = reader.readUInt16BE();
instance.isSigned = reader.readUInt8() === 1;
const unitLen = reader.readBigSize();
const unitBuf = reader.readBytes(Number(unitLen));
instance.unit = unitBuf.toString();
instance.precision = reader.readUInt32BE();
instance.nbDigits = reader.readUInt16BE();
return instance;
}
/**
* The type for digit_decomposition_event_descriptor_v0 message. digit_decomposition_event_descriptor_v0 = 55302
*/
public type = DigitDecompositionEventDescriptorV0.type;
public length: bigint;
public base: number; // Switch to bigint in oracle_announcement_v1
public isSigned: boolean;
public unit: string;
public precision: number;
public nbDigits: number;
/**
* Validates correctness of all fields in the message
* https://github.com/discreetlogcontracts/dlcspecs/blob/master/Oracle.md
* @throws Will throw an error if validation fails
*/
public validate(): void {
if (this.base <= 0) {
throw new Error('base must be greater than 0');
}
// TODO: support isSigned according to specifications
if (this.isSigned) {
throw new Error('node-dlc does not support isSigned');
}
}
/**
* Converts digit_decomposition_event_descriptor_v0 to JSON
*/
public toJSON(): IDigitDecompositionEventDescriptorV0JSON {
return {
type: this.type,
base: this.base,
isSigned: this.isSigned,
unit: this.unit,
precision: this.precision,
nbDigits: this.nbDigits,
};
}
/**
* Serializes the digit_decomposition_event_descriptor_v0 message into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeBigSize(this.type);
const dataWriter = new BufferWriter();
dataWriter.writeUInt16BE(this.base); // Switch to BigSize in oracle_announcement_v1
dataWriter.writeUInt8(this.isSigned ? 1 : 0);
dataWriter.writeBigSize(this.unit.length);
dataWriter.writeBytes(Buffer.from(this.unit));
dataWriter.writeUInt32BE(this.precision);
dataWriter.writeUInt16BE(this.nbDigits);
writer.writeBigSize(dataWriter.size);
writer.writeBytes(dataWriter.toBuffer());
return writer.toBuffer();
}
}
export interface IEnumEventDescriptorV0JSON {
type: number;
outcomes: string[];
}
export interface IDigitDecompositionEventDescriptorV0JSON {
type: number;
base: number;
isSigned: boolean;
unit: string;
precision: number;
nbDigits: number;
}
|