From: Chris Duncan <chris@zoso.dev>
Date: Wed, 11 Dec 2024 22:07:10 +0000 (-0800)
Subject: Implement once-called function inline, and move validation to top of calculate function.
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=4afc7994d94f41634d0435930f0e9ef9da46e6b3;p=libnemo.git

Implement once-called function inline, and move validation to top of calculate function.
---

diff --git a/src/lib/workers/pow.ts b/src/lib/workers/pow.ts
index 78ba3b2..4cdf7b0 100644
--- a/src/lib/workers/pow.ts
+++ b/src/lib/workers/pow.ts
@@ -40,16 +40,13 @@ export class Pow {
 		return out
 	}
 
-	static hex_reverse (hex: string): string {
-		let out = ''
-		for (let i = hex.length; i > 0; i -= 2) {
-			out += hex.slice(i - 2, i)
-		}
-		return out
-	}
-
 	static calculate (hashHex: string, threshold: number | string = '0xFFFFFFF8', callback: (nonce: string | PromiseLike<string>) => any): void {
 		if (typeof threshold === 'number') threshold = '0x' + threshold.toString(16)
+		if (!/^[A-F-a-f0-9]{64}$/.test(hashHex)) throw new Error(`invalid_hash ${hashHex}`)
+		let reverseHex = ''
+		for (let i = hashHex.length; i > 0; i -= 2) {
+			reverseHex += hashHex.slice(i - 2, i)
+		}
 
 		const canvas = new OffscreenCanvas(this.webglWidth, this.webglHeight)
 		const gl = canvas.getContext('webgl2')
@@ -57,12 +54,8 @@ export class Pow {
 		if (!gl)
 			throw new Error('webgl2_required')
 
-		if (!/^[A-F-a-f0-9]{64}$/.test(hashHex))
-			throw new Error(`invalid_hash ${hashHex}`)
-
 		gl.clearColor(0, 0, 0, 1)
 
-		const reverseHex = this.hex_reverse(hashHex)
 
 		// Vertext Shader
 		const vsSource = `#version 300 es