From 221d689daf4637c7169f9104df0d4b66d00d0370 Mon Sep 17 00:00:00 2001
From: Matthew Hall <hallmatthew314@gmail.com>
Date: Sun, 4 Sep 2022 14:11:20 +1200
Subject: Re-write source selection to not use the not_nil! method

---
 src/flint.cr | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/flint.cr b/src/flint.cr
index 89f1d3f..02255b2 100644
--- a/src/flint.cr
+++ b/src/flint.cr
@@ -55,12 +55,9 @@ module Flint
 
     parser.parse
 
-    if read_stdin
-      source_io = STDIN
-    elsif !source_file.nil?
-      # compilier complains without the not_nil!
-      source_io = File.new(source_file.not_nil!)
-    else
+    source_io = read_stdin ? STDIN : source_file.try { |f| File.new(f) }
+
+    if source_io.nil?
       puts "ERROR: No source file chosen"
       puts parser
       exit(1)
-- 
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