From 65574bcab2a38d55a18fe2c63e947073c2588f5a Mon Sep 17 00:00:00 2001
From: Stephen Celis <stephen@stephencelis.com>
Date: Thu, 3 Dec 2020 12:27:24 -0500
Subject: [PATCH] Include everything

---
 .../Contents.swift                            | 19 +++++++++++++++
 .../Benchmark-Copying.swift                   | 24 ++++++++++++++++++-
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/0127-parsing-performance-pt1/parser-performance.playground/Contents.swift b/0127-parsing-performance-pt1/parser-performance.playground/Contents.swift
index 2ae52de8..09a865be 100644
--- a/0127-parsing-performance-pt1/parser-performance.playground/Contents.swift
+++ b/0127-parsing-performance-pt1/parser-performance.playground/Contents.swift
@@ -33,3 +33,22 @@ acuteE1.unicodeScalars.elementsEqual(acuteE2.unicodeScalars)
 "🇸"
 "🇺" + "🇸"
 "\u{1F1FA}\u{1F1F8}"
+
+
+
+"🇺🇸".dropFirst()
+
+String("🇺🇸".unicodeScalars.dropFirst())
+
+Array(acuteE1.utf8)
+Array(acuteE2.utf8)
+
+Array("🇺🇸".unicodeScalars)
+Array("🇺🇸".utf8)
+Array("👨‍👨‍👧‍👧".unicodeScalars)
+Array("👨‍👨‍👧‍👧".utf8)
+"👨‍👨‍👧‍👧".utf8.count
+
+"🇺🇸".unicodeScalars.first == ("🇺" as Unicode.Scalar)
+
+"🇺🇸".utf8.starts(with: [240, 159, 135, 186])
diff --git a/0127-parsing-performance-pt1/string-performance/Sources/string-performance/Benchmark-Copying.swift b/0127-parsing-performance-pt1/string-performance/Sources/string-performance/Benchmark-Copying.swift
index e3558b0f..c0b41cf1 100644
--- a/0127-parsing-performance-pt1/string-performance/Sources/string-performance/Benchmark-Copying.swift
+++ b/0127-parsing-performance-pt1/string-performance/Sources/string-performance/Benchmark-Copying.swift
@@ -1,7 +1,7 @@
 import Benchmark
 
 let copyingSuite = BenchmarkSuite(name: "Copying") { suite in
-  let string = String.init(repeating: "A", count: 1_000_000)
+  let string = String.init(repeating: "👨‍👨‍👧‍👧", count: 1_000_000)
 
   suite.benchmark("String") {
     var copy = string
@@ -24,5 +24,27 @@ let copyingSuite = BenchmarkSuite(name: "Copying") { suite in
     var copy3 = copy2
     copy3.removeFirst()
   }
+
+  suite.benchmark("UnicodeScalars") {
+    var copy = string[...].unicodeScalars
+    copy.removeFirst()
+    var copy1 = copy
+    copy1.removeFirst()
+    var copy2 = copy1
+    copy2.removeFirst()
+    var copy3 = copy2
+    copy3.removeFirst()
+  }
+
+  suite.benchmark("UTF8") {
+    var copy = string[...].utf8
+    copy.removeFirst()
+    var copy1 = copy
+    copy1.removeFirst()
+    var copy2 = copy1
+    copy2.removeFirst()
+    var copy3 = copy2
+    copy3.removeFirst()
+  }
 }