Remove dead code related to the diagnostics server.

pkg/analysis_server/lib/src/status/tree_writer.dart

Index: pkg/analysis_server/lib/src/status/tree_writer.dart
diff --git a/pkg/analysis_server/lib/src/status/tree_writer.dart b/pkg/analysis_server/lib/src/status/tree_writer.dart
deleted file mode 100644
index e6b45709578c85a541ee76af77df86132448aa8e..0000000000000000000000000000000000000000
--- a/pkg/analysis_server/lib/src/status/tree_writer.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:convert';
-
-import 'package:analyzer/exception/exception.dart';
-import 'package:analyzer/src/dart/element/element.dart';
-import 'package:analyzer/src/generated/constant.dart';
-import 'package:analyzer/src/generated/source.dart';
-
-/**
- * Utility methods that can be mixed in to classes that produce an HTML
- * representation of a tree structure.
- */
-abstract class TreeWriter {

[Brian Wilkerson, 2017/05/31 14:54:43]

This would need to stay because of the subclasses.

[devoncarew, 2017/06/01 16:59:11]

Done.

-  /**
-   * The buffer on which the HTML is to be written.
-   */
-  StringBuffer buffer;
-
-  /**
-   * The current level of indentation.
-   */
-  int indentLevel = 0;
-
-  /**
-   * A list containing the exceptions that were caught while attempting to write
-   * out the tree structure.
-   */
-  List<CaughtException> exceptions = <CaughtException>[];
-
-  void indent([int extra = 0]) {
-    for (int i = 0; i < indentLevel; i++) {
-      buffer.write('&#x250A;&nbsp;&nbsp;&nbsp;');
-    }
-    if (extra > 0) {
-      buffer.write('&#x250A;&nbsp;&nbsp;&nbsp;');
-      for (int i = 1; i < extra; i++) {
-        buffer.write('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;');
-      }
-    }
-  }
-
-  /**
-   * Write a representation of the given [properties] to the buffer.
-   */
-  void writeProperties(Map<String, Object> properties) {
-    List<String> propertyNames = properties.keys.toList();
-    propertyNames.sort();
-    for (String propertyName in propertyNames) {
-      writeProperty(propertyName, properties[propertyName]);
-    }
-  }
-
-  /**
-   * Write the [value] of the property with the given [name].
-   */
-  void writeProperty(String name, Object value) {
-    if (value != null) {
-      indent(2);
-      buffer.write('$name = ');
-      _writePropertyValue(value, indentLevel);
-      buffer.write('<br>');
-    }
-  }
-
-  String _toString(Object value) {
-    try {
-      if (value is Source) {
-        return 'Source (uri="${value.uri}", path="${value.fullName}")';
-      } else if (value is ElementAnnotationImpl) {
-        StringBuffer buffer = new StringBuffer();
-        buffer.write(_toString(value.element));
-        EvaluationResultImpl result = value.evaluationResult;
-        if (result == null) {
-          buffer.write(': no result');
-        } else {
-          buffer.write(': value = ');
-          buffer.write(result.value);
-          buffer.write('; errors = ');
-          buffer.write(result.errors);
-        }
-        return buffer.toString();
-      } else {
-        return value.toString();
-      }
-    } catch (exception, stackTrace) {
-      exceptions.add(new CaughtException(exception, stackTrace));
-    }
-    return null;
-  }
-
-  /**
-   * Write the [value] of the property with the given [name].
-   */
-  void _writePropertyValue(Object value, int baseIndent) {
-    if (value is List) {
-      if (value.isEmpty) {
-        buffer.write('[]');
-      } else {
-        int elementIndent = baseIndent + 2;
-        buffer.write('[<br>');
-        for (Object element in value) {
-          indent(elementIndent);
-          _writePropertyValue(element, elementIndent);
-          buffer.write('<br>');
-        }
-        indent(baseIndent);
-        buffer.write(']');
-      }
-    } else {
-      String valueString = _toString(value);
-      if (valueString == null) {
-        buffer.write('<span style="color: #FF0000">');
-        buffer.write(HTML_ESCAPE.convert(value.runtimeType.toString()));
-        buffer.write('</span>');
-      } else {
-        buffer.write(HTML_ESCAPE.convert(valueString));
-      }
-    }
-  }
-}