minimize temporary strings for better performance (#1215)

qiufengshe · love-linger · commit 232482ca923e · 2025-04-21T09:44:26.000+08:00
(cherry picked from commit b4fa80c)
diff --git a/src/Commands/Statistics.cs b/src/Commands/Statistics.cs
@@ -1,4 +1,4 @@
-﻿using System;
+using System;
 
 namespace SourceGit.Commands
 {
@@ -40,7 +40,7 @@ private void ParseLine(Models.Statistics statistics, string line)
             if (dateEndIdx == -1)
                 return;
 
-            var dateStr = line.Substring(0, dateEndIdx);
+            var dateStr = line.AsSpan().Slice(0, dateEndIdx);
             if (double.TryParse(dateStr, out var date))
                 statistics.AddCommit(line.Substring(dateEndIdx + 1), date);
         }

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-using System;`
	`1`	`+using System;`
`2`	`2`
`3`	`3`	`namespace SourceGit.Commands`
`4`	`4`	`{`
`@@ -40,7 +40,7 @@ private void ParseLine(Models.Statistics statistics, string line)`
`40`	`40`	`if (dateEndIdx == -1)`
`41`	`41`	`return;`
`42`	`42`
`43`		`- var dateStr = line.Substring(0, dateEndIdx);`
	`43`	`+ var dateStr = line.AsSpan().Slice(0, dateEndIdx);`
`44`	`44`	`if (double.TryParse(dateStr, out var date))`
`45`	`45`	`statistics.AddCommit(line.Substring(dateEndIdx + 1), date);`
`46`	`46`	`}`