Move Engine to Server element / error converters into protocol_server.dart

pkg/analysis_server/lib/src/computer/element.dart

-// Copyright (c) 2014, 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.
-
-library computer.element;
-
-import 'package:analysis_server/src/protocol_server.dart';
-import 'package:analyzer/src/generated/element.dart' as engine;
-import 'package:analyzer/src/generated/utilities_dart.dart' as engine;
-
-
-Element elementFromEngine(engine.Element element) {
-  String name = element.displayName;
-  String elementParameters = _getParametersString(element);
-  String elementReturnType = _getReturnTypeString(element);
-  return new Element(
-      newElementKind_fromEngine(element.kind),
-      name,
-      Element.makeFlags(
-          isPrivate: element.isPrivate,
-          isDeprecated: element.isDeprecated,
-          isAbstract: _isAbstract(element),
-          isConst: _isConst(element),
-          isFinal: _isFinal(element),
-          isStatic: _isStatic(element)),
-      location: newLocation_fromElement(element),
-      parameters: elementParameters,
-      returnType: elementReturnType);
-}
-
-String _getParametersString(engine.Element element) {
-  // TODO(scheglov) expose the corresponding feature from ExecutableElement
-  if (element is engine.ExecutableElement) {
-    var sb = new StringBuffer();
-    String closeOptionalString = '';
-    for (var parameter in element.parameters) {
-      if (sb.isNotEmpty) {
-        sb.write(', ');
-      }
-      if (closeOptionalString.isEmpty) {
-        if (parameter.kind == engine.ParameterKind.NAMED) {
-          sb.write('{');
-          closeOptionalString = '}';
-        }
-        if (parameter.kind == engine.ParameterKind.POSITIONAL) {
-          sb.write('[');
-          closeOptionalString = ']';
-        }
-      }
-      sb.write(parameter.toString());
-    }
-    sb.write(closeOptionalString);
-    return '(' + sb.toString() + ')';
-  } else {
-    return null;
-  }
-}
-
-String _getReturnTypeString(engine.Element element) {
-  if (element is engine.ExecutableElement) {
-    if (element.kind == engine.ElementKind.SETTER) {
-      return null;
-    } else {
-      return element.returnType.toString();
-    }
-  } else {
-    return null;
-  }
-}
-
-bool _isAbstract(engine.Element element) {
-  // TODO(scheglov) add isAbstract to Element API
-  if (element is engine.ClassElement) {
-    return element.isAbstract;
-  }
-  if (element is engine.MethodElement) {
-    return element.isAbstract;
-  }
-  if (element is engine.PropertyAccessorElement) {
-    return element.isAbstract;
-  }
-  return false;
-}
-
-bool _isConst(engine.Element element) {
-  // TODO(scheglov) add isConst to Element API
-  if (element is engine.ConstructorElement) {
-    return element.isConst;
-  }
-  if (element is engine.VariableElement) {
-    return element.isConst;
-  }
-  return false;
-}
-
-bool _isFinal(engine.Element element) {
-  // TODO(scheglov) add isFinal to Element API
-  if (element is engine.VariableElement) {
-    return element.isFinal;
-  }
-  return false;
-}
-
-bool _isStatic(engine.Element element) {
-  // TODO(scheglov) add isStatic to Element API
-  if (element is engine.ExecutableElement) {
-    return element.isStatic;
-  }
-  if (element is engine.PropertyInducingElement) {
-    return element.isStatic;
-  }
-  return false;
-}