From 0bc5e7eb878c40e127d60ddb88727e1923647f23 Mon Sep 17 00:00:00 2001
From: James Prevett <jp@jamespre.dev>
Date: Thu, 19 Dec 2024 12:28:15 -0600
Subject: [PATCH] Reduce target to ES2019, remove bigint literals (fixes #160)

---
 src/backends/store/inode.ts |  2 +-
 src/devices.ts              |  4 ++--
 src/stats.ts                | 20 +++++++++++---------
 tsconfig.json               |  2 +-
 4 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/src/backends/store/inode.ts b/src/backends/store/inode.ts
index 51b4412a..0065ef84 100644
--- a/src/backends/store/inode.ts
+++ b/src/backends/store/inode.ts
@@ -6,7 +6,7 @@ import { randomBigInt } from '../../utils.js';
  * Room inode
  * @hidden
  */
-export const rootIno = 0n;
+export const rootIno = BigInt(0) as 0n;
 
 /**
  * Generic inode definition that can easily be serialized.
diff --git a/src/devices.ts b/src/devices.ts
index 4e33ff88..97cb166c 100644
--- a/src/devices.ts
+++ b/src/devices.ts
@@ -239,7 +239,7 @@ export class DeviceFS extends StoreFS<InMemoryStore> {
 		if (this.existsSync(path)) {
 			throw ErrnoError.With('EEXIST', path, 'mknod');
 		}
-		let ino = 1n;
+		let ino = BigInt(1) as 1n;
 		while (this.store.has(ino)) ino++;
 		const dev = {
 			driver,
@@ -273,7 +273,7 @@ export class DeviceFS extends StoreFS<InMemoryStore> {
 	 * @internal
 	 */
 	_createDevice<TData = any>(driver: DeviceDriver<TData>, options: object = {}): Device<TData | Record<string, never>> {
-		let ino = 1n;
+		let ino = BigInt(1) as 1n;
 		while (this.store.has(ino)) ino++;
 		const dev = {
 			driver,
diff --git a/src/stats.ts b/src/stats.ts
index 2340008d..481095ae 100644
--- a/src/stats.ts
+++ b/src/stats.ts
@@ -25,6 +25,8 @@ import {
 	X_OK,
 } from './emulation/constants.js';
 
+const n1000 = BigInt(1000) as 1000n;
+
 /**
  * Indicates the type of a file. Applied to 'mode'.
  */
@@ -305,19 +307,19 @@ export abstract class StatsCommon<T extends number | bigint> implements Node.Sta
 	}
 
 	public get atimeNs(): bigint {
-		return BigInt(this.atimeMs) * 1000n;
+		return BigInt(this.atimeMs) * n1000;
 	}
 
 	public get mtimeNs(): bigint {
-		return BigInt(this.mtimeMs) * 1000n;
+		return BigInt(this.mtimeMs) * n1000;
 	}
 
 	public get ctimeNs(): bigint {
-		return BigInt(this.ctimeMs) * 1000n;
+		return BigInt(this.ctimeMs) * n1000;
 	}
 
 	public get birthtimeNs(): bigint {
-		return BigInt(this.birthtimeMs) * 1000n;
+		return BigInt(this.birthtimeMs) * n1000;
 	}
 }
 
@@ -392,15 +394,15 @@ export class StatsFs implements Node.StatsFsBase<number> {
  */
 export class BigIntStatsFs implements Node.StatsFsBase<bigint> {
 	/** Type of file system. */
-	public type: bigint = 0x7a656e6673n;
+	public type: bigint = BigInt('0x7a656e6673');
 	/**  Optimal transfer block size. */
-	public bsize: bigint = 4096n;
+	public bsize: bigint = BigInt(4096);
 	/**  Total data blocks in file system. */
-	public blocks: bigint = 0n;
+	public blocks: bigint = BigInt(0);
 	/** Free blocks in file system. */
-	public bfree: bigint = 0n;
+	public bfree: bigint = BigInt(0);
 	/** Available blocks for unprivileged users */
-	public bavail: bigint = 0n;
+	public bavail: bigint = BigInt(0);
 	/** Total file nodes in file system. */
 	public files: bigint = BigInt(size_max);
 	/** Free file nodes in file system. */
diff --git a/tsconfig.json b/tsconfig.json
index 5a9fe642..e21ef0e9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,7 @@
 {
 	"compilerOptions": {
 		"module": "NodeNext",
-		"target": "ES2020",
+		"target": "ES2019",
 		"outDir": "dist",
 		"lib": ["ESNext"],
 		"moduleResolution": "NodeNext",