Update Files

Kha/Tools/linux_arm64/std/cs/_std/StringBuf.hx

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+/*
+ * Copyright (C)2005-2019 Haxe Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+import cs.system.text.StringBuilder;
+
+@:coreApi
+class StringBuf {
+	private var b:StringBuilder;
+
+	public var length(get, never):Int;
+
+	public inline function new():Void {
+		b = new StringBuilder();
+	}
+
+	inline function get_length():Int {
+		return b.Length;
+	}
+
+	public inline function add<T>(x:T):Void {
+		b.Append(Std.string(x));
+	}
+
+	public inline function addSub(s:String, pos:Int, ?len:Int):Void {
+		b.Append(s, pos, (len == null) ? (s.length - pos) : len);
+	}
+
+	public function addChar(c:Int):Void
+		untyped {
+			if (c >= 0x10000) {
+				b.Append(cast((c >> 10) + 0xD7C0, cs.StdTypes.Char16));
+				b.Append(cast((c & 0x3FF) + 0xDC00, cs.StdTypes.Char16));
+			} else {
+				b.Append(cast(c, cs.StdTypes.Char16));
+			}
+		}
+
+	public inline function toString():String {
+		return b.ToString();
+	}
+}