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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================
+**
+**
+**
+**
+**
+** Purpose: Abstract base class for Text-only Writers.
+** Subclasses will include StreamWriter & StringWriter.
+**
+**
+===========================================================*/
+
+using System;
+using System.Text;
+using System.Threading;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Reflection;
+using System.Security.Permissions;
+using System.Globalization;
+using System.Diagnostics.CodeAnalysis;
+using System.Diagnostics.Contracts;
+using System.Threading.Tasks;
+
+namespace System.IO {
+ // This abstract base class represents a writer that can write a sequential
+ // stream of characters. A subclass must minimally implement the
+ // Write(char) method.
+ //
+ // This class is intended for character output, not bytes.
+ // There are methods on the Stream class for writing bytes.
+ [Serializable]
+ [ComVisible(true)]
+#if FEATURE_REMOTING
+ public abstract class TextWriter : MarshalByRefObject, IDisposable {
+#else // FEATURE_REMOTING
+ public abstract class TextWriter : IDisposable {
+#endif // FEATURE_REMOTING
+ public static readonly TextWriter Null = new NullTextWriter();
+
+ // This should be initialized to Environment.NewLine, but
+ // to avoid loading Environment unnecessarily so I've duplicated
+ // the value here.
+#if !PLATFORM_UNIX
+ private const String InitialNewLine = "\r\n";
+
+ protected char[] CoreNewLine = new char[] { '\r', '\n' };
+#else
+ private const String InitialNewLine = "\n";
+
+ protected char[] CoreNewLine = new char[] {'\n'};
+#endif // !PLATFORM_UNIX
+
+ // Can be null - if so, ask for the Thread's CurrentCulture every time.
+ private IFormatProvider InternalFormatProvider;
+
+ protected TextWriter()
+ {
+ InternalFormatProvider = null; // Ask for CurrentCulture all the time.
+ }
+
+ protected TextWriter(IFormatProvider formatProvider)
+ {
+ InternalFormatProvider = formatProvider;
+ }
+
+ public virtual IFormatProvider FormatProvider {
+ get {
+ if (InternalFormatProvider == null)
+ return Thread.CurrentThread.CurrentCulture;
+ else
+ return InternalFormatProvider;
+ }
+ }
+
+ // Closes this TextWriter and releases any system resources associated with the
+ // TextWriter. Following a call to Close, any operations on the TextWriter
+ // may raise exceptions. This default method is empty, but descendant
+ // classes can override the method to provide the appropriate
+ // functionality.
+ public virtual void Close() {
+ Dispose(true);
+ GC.SuppressFinalize(this);
+ }
+
+ protected virtual void Dispose(bool disposing)
+ {
+ }
+
+
+ public void Dispose()
+ {
+ Dispose(true);
+ GC.SuppressFinalize(this);
+ }
+
+ // Clears all buffers for this TextWriter and causes any buffered data to be
+ // written to the underlying device. This default method is empty, but
+ // descendant classes can override the method to provide the appropriate
+ // functionality.
+ public virtual void Flush() {
+ }
+
+ public abstract Encoding Encoding {
+ get;
+ }
+
+ // Returns the line terminator string used by this TextWriter. The default line
+ // terminator string is a carriage return followed by a line feed ("\r\n").
+ //
+ // Sets the line terminator string for this TextWriter. The line terminator
+ // string is written to the text stream whenever one of the
+ // WriteLine methods are called. In order for text written by
+ // the TextWriter to be readable by a TextReader, only one of the following line
+ // terminator strings should be used: "\r", "\n", or "\r\n".
+ //
+ public virtual String NewLine {
+ get { return new String(CoreNewLine); }
+ set {
+ if (value == null)
+ value = InitialNewLine;
+ CoreNewLine = value.ToCharArray();
+ }
+ }
+
+
+ [HostProtection(Synchronization=true)]
+ public static TextWriter Synchronized(TextWriter writer) {
+ if (writer==null)
+ throw new ArgumentNullException("writer");
+ Contract.Ensures(Contract.Result<TextWriter>() != null);
+ Contract.EndContractBlock();
+
+ if (writer is SyncTextWriter)
+ return writer;
+
+ return new SyncTextWriter(writer);
+ }
+
+ // Writes a character to the text stream. This default method is empty,
+ // but descendant classes can override the method to provide the
+ // appropriate functionality.
+ //
+ public virtual void Write(char value) {
+ }
+
+ // Writes a character array to the text stream. This default method calls
+ // Write(char) for each of the characters in the character array.
+ // If the character array is null, nothing is written.
+ //
+ public virtual void Write(char[] buffer) {
+ if (buffer != null) Write(buffer, 0, buffer.Length);
+ }
+
+ // Writes a range of a character array to the text stream. This method will
+ // write count characters of data into this TextWriter from the
+ // buffer character array starting at position index.
+ //
+ public virtual void Write(char[] buffer, int index, int count) {
+ if (buffer==null)
+ throw new ArgumentNullException("buffer", Environment.GetResourceString("ArgumentNull_Buffer"));
+ if (index < 0)
+ throw new ArgumentOutOfRangeException("index", Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
+ if (count < 0)
+ throw new ArgumentOutOfRangeException("count", Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
+ if (buffer.Length - index < count)
+ throw new ArgumentException(Environment.GetResourceString("Argument_InvalidOffLen"));
+ Contract.EndContractBlock();
+
+ for (int i = 0; i < count; i++) Write(buffer[index + i]);
+ }
+
+ // Writes the text representation of a boolean to the text stream. This
+ // method outputs either Boolean.TrueString or Boolean.FalseString.
+ //
+ public virtual void Write(bool value) {
+ Write(value ? Boolean.TrueLiteral : Boolean.FalseLiteral);
+ }
+
+ // Writes the text representation of an integer to the text stream. The
+ // text representation of the given value is produced by calling the
+ // Int32.ToString() method.
+ //
+ public virtual void Write(int value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ // Writes the text representation of an integer to the text stream. The
+ // text representation of the given value is produced by calling the
+ // UInt32.ToString() method.
+ //
+ [CLSCompliant(false)]
+ public virtual void Write(uint value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ // Writes the text representation of a long to the text stream. The
+ // text representation of the given value is produced by calling the
+ // Int64.ToString() method.
+ //
+ public virtual void Write(long value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ // Writes the text representation of an unsigned long to the text
+ // stream. The text representation of the given value is produced
+ // by calling the UInt64.ToString() method.
+ //
+ [CLSCompliant(false)]
+ public virtual void Write(ulong value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ // Writes the text representation of a float to the text stream. The
+ // text representation of the given value is produced by calling the
+ // Float.toString(float) method.
+ //
+ public virtual void Write(float value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ // Writes the text representation of a double to the text stream. The
+ // text representation of the given value is produced by calling the
+ // Double.toString(double) method.
+ //
+ public virtual void Write(double value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ public virtual void Write(Decimal value) {
+ Write(value.ToString(FormatProvider));
+ }
+
+ // Writes a string to the text stream. If the given string is null, nothing
+ // is written to the text stream.
+ //
+ public virtual void Write(String value) {
+ if (value != null) Write(value.ToCharArray());
+ }
+
+ // Writes the text representation of an object to the text stream. If the
+ // given object is null, nothing is written to the text stream.
+ // Otherwise, the object's ToString method is called to produce the
+ // string representation, and the resulting string is then written to the
+ // output stream.
+ //
+ public virtual void Write(Object value) {
+ if (value != null) {
+ IFormattable f = value as IFormattable;
+ if (f != null)
+ Write(f.ToString(null, FormatProvider));
+ else
+ Write(value.ToString());
+ }
+ }
+
+#if false
+ // // Converts the wchar * to a string and writes this to the stream.
+ // //
+ // __attribute NonCLSCompliantAttribute()
+ // public void Write(wchar *value) {
+ // Write(new String(value));
+ // }
+
+ // // Treats the byte* as a LPCSTR, converts it to a string, and writes it to the stream.
+ // //
+ // __attribute NonCLSCompliantAttribute()
+ // public void Write(byte *value) {
+ // Write(new String(value));
+ // }
+#endif
+
+
+ // Writes out a formatted string. Uses the same semantics as
+ // String.Format.
+ //
+ public virtual void Write(String format, Object arg0)
+ {
+ Write(String.Format(FormatProvider, format, arg0));
+ }
+
+ // Writes out a formatted string. Uses the same semantics as
+ // String.Format.
+ //
+ public virtual void Write(String format, Object arg0, Object arg1)
+ {
+ Write(String.Format(FormatProvider, format, arg0, arg1));
+ }
+
+ // Writes out a formatted string. Uses the same semantics as
+ // String.Format.
+ //
+ public virtual void Write(String format, Object arg0, Object arg1, Object arg2)
+ {
+ Write(String.Format(FormatProvider, format, arg0, arg1, arg2));
+ }
+
+ // Writes out a formatted string. Uses the same semantics as
+ // String.Format.
+ //
+ public virtual void Write(String format, params Object[] arg)
+ {
+ Write(String.Format(FormatProvider, format, arg));
+ }
+
+
+ // Writes a line terminator to the text stream. The default line terminator
+ // is a carriage return followed by a line feed ("\r\n"), but this value
+ // can be changed by setting the NewLine property.
+ //
+ public virtual void WriteLine() {
+ Write(CoreNewLine);
+ }
+
+ // Writes a character followed by a line terminator to the text stream.
+ //
+ public virtual void WriteLine(char value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes an array of characters followed by a line terminator to the text
+ // stream.
+ //
+ public virtual void WriteLine(char[] buffer) {
+ Write(buffer);
+ WriteLine();
+ }
+
+ // Writes a range of a character array followed by a line terminator to the
+ // text stream.
+ //
+ public virtual void WriteLine(char[] buffer, int index, int count) {
+ Write(buffer, index, count);
+ WriteLine();
+ }
+
+ // Writes the text representation of a boolean followed by a line
+ // terminator to the text stream.
+ //
+ public virtual void WriteLine(bool value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes the text representation of an integer followed by a line
+ // terminator to the text stream.
+ //
+ public virtual void WriteLine(int value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes the text representation of an unsigned integer followed by
+ // a line terminator to the text stream.
+ //
+ [CLSCompliant(false)]
+ public virtual void WriteLine(uint value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes the text representation of a long followed by a line terminator
+ // to the text stream.
+ //
+ public virtual void WriteLine(long value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes the text representation of an unsigned long followed by
+ // a line terminator to the text stream.
+ //
+ [CLSCompliant(false)]
+ public virtual void WriteLine(ulong value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes the text representation of a float followed by a line terminator
+ // to the text stream.
+ //
+ public virtual void WriteLine(float value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes the text representation of a double followed by a line terminator
+ // to the text stream.
+ //
+ public virtual void WriteLine(double value) {
+ Write(value);
+ WriteLine();
+ }
+
+ public virtual void WriteLine(decimal value) {
+ Write(value);
+ WriteLine();
+ }
+
+ // Writes a string followed by a line terminator to the text stream.
+ //
+ public virtual void WriteLine(String value) {
+
+ if (value==null) {
+ WriteLine();
+ }
+ else {
+ // We'd ideally like WriteLine to be atomic, in that one call
+ // to WriteLine equals one call to the OS (ie, so writing to
+ // console while simultaneously calling printf will guarantee we
+ // write out a string and new line chars, without any interference).
+ // Additionally, we need to call ToCharArray on Strings anyways,
+ // so allocating a char[] here isn't any worse than what we were
+ // doing anyways. We do reduce the number of calls to the
+ // backing store this way, potentially.
+ int vLen = value.Length;
+ int nlLen = CoreNewLine.Length;
+ char[] chars = new char[vLen+nlLen];
+ value.CopyTo(0, chars, 0, vLen);
+ // CoreNewLine will almost always be 2 chars, and possibly 1.
+ if (nlLen == 2) {
+ chars[vLen] = CoreNewLine[0];
+ chars[vLen+1] = CoreNewLine[1];
+ }
+ else if (nlLen == 1)
+ chars[vLen] = CoreNewLine[0];
+ else
+ Buffer.InternalBlockCopy(CoreNewLine, 0, chars, vLen * 2, nlLen * 2);
+ Write(chars, 0, vLen + nlLen);
+ }
+ /*
+ Write(value); // We could call Write(String) on StreamWriter...
+ WriteLine();
+ */
+ }
+
+ // Writes the text representation of an object followed by a line
+ // terminator to the text stream.
+ //
+ public virtual void WriteLine(Object value) {
+ if (value==null) {
+ WriteLine();
+ }
+ else {
+ // Call WriteLine(value.ToString), not Write(Object), WriteLine().
+ // This makes calls to WriteLine(Object) atomic.
+ IFormattable f = value as IFormattable;
+ if (f != null)
+ WriteLine(f.ToString(null, FormatProvider));
+ else
+ WriteLine(value.ToString());
+ }
+ }
+
+ // Writes out a formatted string and a new line. Uses the same
+ // semantics as String.Format.
+ //
+ public virtual void WriteLine(String format, Object arg0)
+ {
+ WriteLine(String.Format(FormatProvider, format, arg0));
+ }
+
+ // Writes out a formatted string and a new line. Uses the same
+ // semantics as String.Format.
+ //
+ public virtual void WriteLine (String format, Object arg0, Object arg1)
+ {
+ WriteLine(String.Format(FormatProvider, format, arg0, arg1));
+ }
+
+ // Writes out a formatted string and a new line. Uses the same
+ // semantics as String.Format.
+ //
+ public virtual void WriteLine (String format, Object arg0, Object arg1, Object arg2)
+ {
+ WriteLine(String.Format(FormatProvider, format, arg0, arg1, arg2));
+ }
+
+ // Writes out a formatted string and a new line. Uses the same
+ // semantics as String.Format.
+ //
+ public virtual void WriteLine (String format, params Object[] arg)
+ {
+ WriteLine(String.Format(FormatProvider, format, arg));
+ }
+
+ #region Task based Async APIs
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteAsync(char value)
+ {
+ var tuple = new Tuple<TextWriter, char>(this, value);
+ return Task.Factory.StartNew(state =>
+ {
+ var t = (Tuple<TextWriter, char>)state;
+ t.Item1.Write(t.Item2);
+ },
+ tuple, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteAsync(String value)
+ {
+ var tuple = new Tuple<TextWriter, string>(this, value);
+ return Task.Factory.StartNew(state =>
+ {
+ var t = (Tuple<TextWriter, string>)state;
+ t.Item1.Write(t.Item2);
+ },
+ tuple, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public Task WriteAsync(char[] buffer)
+ {
+ if (buffer == null) return Task.CompletedTask;
+ return WriteAsync(buffer, 0, buffer.Length);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteAsync(char[] buffer, int index, int count)
+ {
+ var tuple = new Tuple<TextWriter, char[], int, int>(this, buffer, index, count);
+ return Task.Factory.StartNew(state =>
+ {
+ var t = (Tuple<TextWriter, char[], int, int>)state;
+ t.Item1.Write(t.Item2, t.Item3, t.Item4);
+ },
+ tuple, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteLineAsync(char value)
+ {
+ var tuple = new Tuple<TextWriter, char>(this, value);
+ return Task.Factory.StartNew(state =>
+ {
+ var t = (Tuple<TextWriter, char>)state;
+ t.Item1.WriteLine(t.Item2);
+ },
+ tuple, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteLineAsync(String value)
+ {
+ var tuple = new Tuple<TextWriter, string>(this, value);
+ return Task.Factory.StartNew(state =>
+ {
+ var t = (Tuple<TextWriter, string>)state;
+ t.Item1.WriteLine(t.Item2);
+ },
+ tuple, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public Task WriteLineAsync(char[] buffer)
+ {
+ if (buffer == null) return Task.CompletedTask;
+ return WriteLineAsync(buffer, 0, buffer.Length);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteLineAsync(char[] buffer, int index, int count)
+ {
+ var tuple = new Tuple<TextWriter, char[], int, int>(this, buffer, index, count);
+ return Task.Factory.StartNew(state =>
+ {
+ var t = (Tuple<TextWriter, char[], int, int>)state;
+ t.Item1.WriteLine(t.Item2, t.Item3, t.Item4);
+ },
+ tuple, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task WriteLineAsync()
+ {
+ return WriteAsync(CoreNewLine);
+ }
+
+ [HostProtection(ExternalThreading = true)]
+ [ComVisible(false)]
+ public virtual Task FlushAsync()
+ {
+ return Task.Factory.StartNew(state =>
+ {
+ ((TextWriter)state).Flush();
+ },
+ this, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);
+ }
+ #endregion
+
+ [Serializable]
+ private sealed class NullTextWriter : TextWriter
+ {
+ internal NullTextWriter(): base(CultureInfo.InvariantCulture) {
+ }
+
+ public override Encoding Encoding {
+ get { return Encoding.Default; }
+ }
+
+ [SuppressMessage("Microsoft.Contracts", "CC1055")] // Skip extra error checking to avoid *potential* AppCompat problems.
+ public override void Write(char[] buffer, int index, int count) {
+ }
+
+ public override void Write(String value) {
+ }
+
+ // Not strictly necessary, but for perf reasons
+ public override void WriteLine() {
+ }
+
+ // Not strictly necessary, but for perf reasons
+ public override void WriteLine(String value) {
+ }
+
+ public override void WriteLine(Object value) {
+ }
+ }
+
+ [Serializable]
+ internal sealed class SyncTextWriter : TextWriter, IDisposable
+ {
+ private TextWriter _out;
+
+ internal SyncTextWriter(TextWriter t): base(t.FormatProvider) {
+ _out = t;
+ }
+
+ public override Encoding Encoding {
+ get { return _out.Encoding; }
+ }
+
+ public override IFormatProvider FormatProvider {
+ get { return _out.FormatProvider; }
+ }
+
+ public override String NewLine {
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ get { return _out.NewLine; }
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ set { _out.NewLine = value; }
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Close() {
+ // So that any overriden Close() gets run
+ _out.Close();
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ protected override void Dispose(bool disposing) {
+ // Explicitly pick up a potentially methodimpl'ed Dispose
+ if (disposing)
+ ((IDisposable)_out).Dispose();
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Flush() {
+ _out.Flush();
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(char value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(char[] buffer) {
+ _out.Write(buffer);
+ }
+
+ [SuppressMessage("Microsoft.Contracts", "CC1055")] // Skip extra error checking to avoid *potential* AppCompat problems.
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(char[] buffer, int index, int count) {
+ _out.Write(buffer, index, count);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(bool value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(int value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(uint value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(long value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(ulong value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(float value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(double value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(Decimal value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(String value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(Object value) {
+ _out.Write(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(String format, Object arg0) {
+ _out.Write(format, arg0);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(String format, Object arg0, Object arg1) {
+ _out.Write(format, arg0, arg1);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(String format, Object arg0, Object arg1, Object arg2) {
+ _out.Write(format, arg0, arg1, arg2);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void Write(String format, Object[] arg) {
+ _out.Write(format, arg);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine() {
+ _out.WriteLine();
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(char value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(decimal value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(char[] buffer) {
+ _out.WriteLine(buffer);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(char[] buffer, int index, int count) {
+ _out.WriteLine(buffer, index, count);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(bool value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(int value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(uint value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(long value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(ulong value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(float value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(double value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(String value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(Object value) {
+ _out.WriteLine(value);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(String format, Object arg0) {
+ _out.WriteLine(format, arg0);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(String format, Object arg0, Object arg1) {
+ _out.WriteLine(format, arg0, arg1);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(String format, Object arg0, Object arg1, Object arg2) {
+ _out.WriteLine(format, arg0, arg1, arg2);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ public override void WriteLine(String format, Object[] arg) {
+ _out.WriteLine(format, arg);
+ }
+
+
+ //
+ // On SyncTextWriter all APIs should run synchronously, even the async ones.
+ //
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task WriteAsync(char value)
+ {
+ Write(value);
+ return Task.CompletedTask;
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task WriteAsync(String value)
+ {
+ Write(value);
+ return Task.CompletedTask;
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task WriteAsync(char[] buffer, int index, int count)
+ {
+ Write(buffer, index, count);
+ return Task.CompletedTask;
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task WriteLineAsync(char value)
+ {
+ WriteLine(value);
+ return Task.CompletedTask;
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task WriteLineAsync(String value)
+ {
+ WriteLine(value);
+ return Task.CompletedTask;
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task WriteLineAsync(char[] buffer, int index, int count)
+ {
+ WriteLine(buffer, index, count);
+ return Task.CompletedTask;
+ }
+
+ [MethodImplAttribute(MethodImplOptions.Synchronized)]
+ [ComVisible(false)]
+ public override Task FlushAsync()
+ {
+ Flush();
+ return Task.CompletedTask;
+ }
+ }
+ }
+}