bufferStuff/writers/WriterLE.ts

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// Copyright (c) Holly Stubbs (tgpholly) - Licensed under MIT
// Check LICENSE in repository root for more information.
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import { IWriter } from "./IWriter";
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import { WriterBase } from "../base/WriterBase";
import { getBufferClass } from "../base/BufferShim";
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export class WriterLE extends WriterBase implements IWriter {
public writeShort(value:number) {
if (this.resizable) {
const buffer = getBufferClass().alloc(2);
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buffer.writeInt16LE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeInt16LE(value, this.offset);
this.offset += 2;
}
return this;
}
public writeUShort(value:number) {
if (this.resizable) {
const buffer = getBufferClass().alloc(2);
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buffer.writeUInt16LE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeUInt16LE(value, this.offset);
this.offset += 2;
}
return this;
}
public writeInt(value:number) {
if (this.resizable) {
const buffer = getBufferClass().alloc(4);
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buffer.writeInt32LE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeInt32LE(value, this.offset);
this.offset += 4;
}
return this;
}
public writeUInt(value:number) {
if (this.resizable) {
const buffer = getBufferClass().alloc(4);
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buffer.writeUInt32LE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeUInt32LE(value, this.offset);
this.offset += 4;
}
return this;
}
public writeLong(value:number|bigint) {
if (typeof(value) !== "bigint") {
value = BigInt(value);
}
if (this.resizable) {
const buffer = getBufferClass().alloc(8);
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buffer.writeBigInt64LE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeBigInt64LE(value, this.offset);
this.offset += 8;
}
return this;
}
public writeULong(value:number|bigint) {
if (typeof(value) !== "bigint") {
value = BigInt(value);
}
if (this.resizable) {
const buffer = getBufferClass().alloc(8);
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buffer.writeBigUint64LE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeBigUint64LE(value, this.offset);
this.offset += 8;
}
return this;
}
public writeFloat(value:number) {
if (this.resizable) {
const buffer = getBufferClass().alloc(4);
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buffer.writeFloatLE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeFloatLE(value, this.offset);
this.offset += 4;
}
return this;
}
public writeDouble(value:number) {
if (this.resizable) {
const buffer = getBufferClass().alloc(8);
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buffer.writeDoubleLE(value);
this.writeBuffer(buffer);
} else {
this.buffer.writeDoubleLE(value, this.offset);
this.offset += 8;
}
return this;
}
public writeShortString(text:string) {
this.writeUByte(text.length);
for (let i = 0; i < text.length; i++) {
this.writeUByte(text.charCodeAt(i));
}
return this;
}
public writeString(text:string) {
this.writeUShort(text.length);
for (let i = 0; i < text.length; i++) {
this.writeUByte(text.charCodeAt(i));
}
return this;
}
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public writeString16(text:string) {
this.writeUShort(text.length);
for (let i = 0; i < text.length; i++) {
this.writeUShort(text.charCodeAt(i));
}
return this;
}
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}