Add buffer library (#1120)

include/roblox.d.ts

@@ -2675,6 +2675,91 @@ declare namespace task {
 	function cancel(thread: thread): void;
 }
 
+interface buffer {
+	/**
+	 * **DO NOT USE!**
+	 *
+	 * This field exists to force TypeScript to recognize this as a nominal type
+	 * @hidden
+	 * @deprecated
+	 */
+	readonly _nominal_buffer: unique symbol;
+}
+
+declare namespace buffer {
+	/** Creates a buffer. */
+	function create(size: number): buffer;
+
+	/** Creates a buffer from a string. */
+	function fromstring(str: string): buffer;
+
+	/** Converts a buffer to a string. */
+	function tostring(b: buffer): string;
+
+	/** Returns the size of the buffer in bytes. */
+	function len(b: buffer): number;
+
+	/** Reads an 8-bit signed integer from the buffer. */
+	function readi8(b: buffer, offset: number): number;
+
+	/** Reads an 8-bit unsigned integer from the buffer. */
+	function readu8(b: buffer, offset: number): number;
+
+	/** Reads a 16-bit signed integer from the buffer. */
+	function readi16(b: buffer, offset: number): number;
+
+	/** Reads a 16-bit unsigned integer from the buffer. */
+	function readu16(b: buffer, offset: number): number;
+
+	/** Reads a 32-bit signed integer from the buffer. */
+	function readi32(b: buffer, offset: number): number;
+
+	/** Reads a 32-bit unsigned integer from the buffer. */
+	function readu32(b: buffer, offset: number): number;
+
+	/** Reads a 32-bit floating-point value from the buffer. */
+	function readf32(b: buffer, offset: number): number;
+
+	/** Reads a 64-bit floating-point value from the buffer. */
+	function readf64(b: buffer, offset: number): number;
+
+	/** Writes an 8-bit signed integer to the buffer. */
+	function writei8(b: buffer, offset: number, value: number): void;
+
+	/** Writes an 8-bit unsigned integer to the buffer. */
+	function writeu8(b: buffer, offset: number, value: number): void;
+
+	/** Writes a 16-bit signed integer to the buffer. */
+	function writei16(b: buffer, offset: number, value: number): void;
+
+	/** Writes a 16-bit unsigned integer to the buffer. */
+	function writeu16(b: buffer, offset: number, value: number): void;
+
+	/** Writes a 32-bit signed integer to the buffer. */
+	function writei32(b: buffer, offset: number, value: number): void;
+
+	/** Writes a 32-bit unsigned integer to the buffer. */
+	function writeu32(b: buffer, offset: number, value: number): void;
+
+	/** Writes a 32-bit floating-point value to the buffer. */
+	function writef32(b: buffer, offset: number, value: number): void;
+
+	/** Writes a 64-bit floating-point value to the buffer. */
+	function writef64(b: buffer, offset: number, value: number): void;
+
+	/** Reads a string from the buffer. */
+	function readstring(b: buffer, offset: number, count: number): string;
+
+	/** Writes a string to the buffer. */
+	function writestring(b: buffer, offset: number, value: string, count?: number): void;
+
+	/** Copies bytes between buffers. */
+	function copy(target: buffer, targetOffset: number, source: buffer, sourceOffset?: number, count?: number): void;
+
+	/** Sets a region of the buffer memory to some 8-bit unsigned integer value. */
+	function fill(b: buffer, offset: number, value: number, count?: number): void;
+}
+
 interface GettableCores {
 	AvatarContextMenuEnabled: boolean;
 	PointsNotificationsActive: boolean;
@@ -2731,6 +2816,7 @@ interface CheckablePrimitives {
 	function: Callback;
 	thread: thread;
 	vector: Vector3;
+	buffer: buffer;
 }
 
 /**