generate suggestions during analysis

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/error/PubSuggestionCode.java

Index: editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/error/PubSuggestionCode.java
diff --git a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/error/PubSuggestionCode.java b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/error/PubSuggestionCode.java
new file mode 100644
index 0000000000000000000000000000000000000000..107f7892d52658dc54816e6376d9f2f73a107dae
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/error/PubSuggestionCode.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2013, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.engine.error;
+
+/**
+ * The enumeration {@code PubSuggestionCode} defines the suggestions used for reporting deviations
+ * from pub best practices. The convention for this class is for the name of the bad practice to
+ * indicate the problem that caused the suggestion to be generated and for the message to explain
+ * what is wrong and, when appropriate, how the situation can be corrected.
+ */
+public enum PubSuggestionCode implements ErrorCode {
+  /**
+   * It is a bad practice for a source file in a package "lib" directory hierarchy to traverse
+   * outside that directory hierarchy. For example, a source file in the "lib" directory should not
+   * contain a directive such as {@code import '../web/some.dart'} which references a file outside
+   * the lib directory.
+   */
+  FILE_IMPORT_INSIDE_LIB_REFERENCES_FILE_OUTSIDE(
+      "A file in the 'lib' directory hierarchy should not reference a file outside that hierarchy"),
+
+  /**
+   * It is a bad practice for a source file ouside a package "lib" directory hierarchy to traverse
+   * into that directory hierarchy. For example, a source file in the "web" directory should not
+   * contain a directive such as {@code import '../lib/some.dart'} which references a file inside
+   * the lib directory.
+   */
+  FILE_IMPORT_OUTSIDE_LIB_REFERENCES_FILE_INSIDE(
+      "A file outside the 'lib' directory hierarchy should not reference a file inside that hierarchy. Use a package: reference instead."),
+
+  /**
+   * It is a bad practice for a package import to reference anything outside the given package, or
+   * more generally, it is bad practice for a package import to contain a "..". For example, a
+   * source file should not contain a directive such as {@code import 'package:foo/../some.dart'}.
+   */
+  PACKAGE_IMPORT_CONTAINS_DOT_DOT("A package import should not contain '..'");
+
+  /**
+   * The message template used to create the message to be displayed for this error.
+   */
+  private final String message;
+
+  /**
+   * Initialize a newly created error code to have the given message.
+   * 
+   * @param message the message template used to create the message to be displayed for the error
+   */
+  private PubSuggestionCode(String message) {
+    this.message = message;
+  }
+
+  @Override
+  public ErrorSeverity getErrorSeverity() {
+    return ErrorType.PUB_SUGGESTION.getSeverity();
+  }
+
+  @Override
+  public String getMessage() {
+    return message;
+  }
+
+  @Override
+  public ErrorType getType() {
+    return ErrorType.PUB_SUGGESTION;
+  }
+}