Call parse directly

Author: rctcwyvrn

Sources/RegexBenchmark/Benchmark.swift

@@ -1,4 +1,5 @@
 @_spi(RegexBenchmark) import _StringProcessing
+@_implementationOnly import _RegexParser
 import Foundation
 
 protocol RegexBenchmark {
@@ -21,10 +22,14 @@ extension SwiftRegexBenchmark {
     let _ = regex._forceAction(.recompile)
   }
   mutating func parse() -> Bool {
-    if let s = pattern {
-      let _ = regex._forceAction(.parse(s))
+    guard let s = pattern else {
+      return false
+    }
+    
+    do {
+      let _ = try _RegexParser.parse(s, .traditional)
       return true
-    } else {
+    } catch {
       return false
     }
   }

Sources/_StringProcessing/Regex/Core.swift

@@ -139,7 +139,6 @@ extension Regex {
 @_spi(RegexBenchmark)
 extension Regex {
   public enum _RegexInternalAction {
-    case parse(String)
     case recompile
     case addOptions(CompileOptions)
   }
@@ -153,9 +152,6 @@ extension Regex {
         program.compileOptions.insert(opts)
         program._loweredProgramStorage = nil
         return true
-      case .parse(let pattern):
-        let _ = try parse(pattern, .traditional)
-        return true
       case .recompile:
         let _ = try Compiler(
           tree: program.tree,