Remove top level code

top level code is real weird, let's not talk about it

Author: rctcwyvrn

Sources/RegexBenchmark/Benchmark.swift

@@ -54,7 +54,7 @@ public struct BenchmarkRunner {
   // Register instances of Benchmark and run them
   let suiteName: String
   var suite: [any RegexBenchmark]
-  let samples: Int = 20
+  let samples: Int = 40
 
   public init(suiteName: String) {
     self.suiteName = suiteName
@@ -88,6 +88,9 @@ public struct BenchmarkRunner {
       let time = end.elapsedTime(since: start)
       times.append(time)
     }
+    // todo: compute stdev and warn if it's too large
+    
+    // return median time
     times.sort()
     return times[samples/2]
   }

Sources/RegexBenchmark/Suite/Backtracking.swift

@@ -6,25 +6,40 @@ import Foundation
 
 extension BenchmarkRunner {
   mutating func addBacktracking() {
-    register(new: basicBacktrack)
-    register(new: basicBacktrackNS)
-  }
-}
+    let r = "^ +A"
+    let s = String(repeating: " ", count: 1000)
 
+    let basicBacktrack = Benchmark(
+      name: "BasicBacktrack",
+      regex: try! Regex(r),
+      ty: .enumerate,
+      target: s
+    )
 
-private let r = " +A"
-private let s = String(repeating: " ", count: 100)
+    let basicBacktrackNS = NSBenchmark(
+      name: "BasicBacktrackNS",
+      regex: try! NSRegularExpression(pattern: r),
+      ty: .all,
+      target: s
+    )
 
-private let basicBacktrack = Benchmark(
-  name: "BasicBacktrack",
-  regex: try! Regex(r),
-  ty: .enumerate,
-  target: s
-)
+    let basicBacktrackFirstMatch = Benchmark(
+      name: "BasicBacktrackFirstMatch",
+      regex: try! Regex(r),
+      ty: .first,
+      target: s
+    )
 
-private let basicBacktrackNS = NSBenchmark(
-  name: "BasicBacktrackNS",
-  regex: try! NSRegularExpression(pattern: r),
-  ty: .all,
-  target: s
-)
+    let basicBacktrackNSFirstMatch = NSBenchmark(
+      name: "BasicBacktrackNSFirstMatch",
+      regex: try! NSRegularExpression(pattern: r),
+      ty: .first,
+      target: s
+    )
+    
+    register(new: basicBacktrack)
+    register(new: basicBacktrackNS)
+    register(new: basicBacktrackFirstMatch)
+    register(new: basicBacktrackNSFirstMatch)
+  }
+}