From: Erik Mackdanz <erikmack@gmail.com>
Date: Sat, 25 Nov 2023 03:02:00 +0000 (-0600)
Subject: use expect() not unwrap()
X-Git-Url: https://git.humopery.space/?a=commitdiff_plain;h=bb1a0a0f027e425142d8fa62b5ec2bceaa664f21;p=polarsbop.git

use expect() not unwrap()
---

diff --git a/src/main.rs b/src/main.rs
index f072823..0182cc6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,13 +7,16 @@ fn main() -> Result<(),PolarsError> {
     // expect first arg to be a file suffix = 0, 1
     let mut argsiter = args();
     let _ = argsiter.next();
-    let suffix = argsiter.next().unwrap();
+    let suffix = argsiter.next()
+	.expect("single argument required, 0 or 1");
 
     // prep output file
-    create_dir_all("out").unwrap();
+    create_dir_all("out")
+	.expect("couldn't create out dir");
     let outfilename = format!("out/output-{}.json",suffix);
     // println!("{}",outfilename);
-    let mut file = File::create(outfilename).unwrap();
+    let mut file = File::create(outfilename)
+	.expect("couldn't create output file");
 
     // set some columns to be parsed as numeric
     let mut schema_override = Schema::new();