Add DiagnosticTag support

org.eclipse.lsp4j/src/main/java/org/eclipse/lsp4j/DiagnosticTag.java

@@ -0,0 +1,48 @@
+/******************************************************************************
+ * Copyright (c) 2019 Mcirosoft.
+ * 
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ * 
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ ******************************************************************************/
+
+package org.eclipse.lsp4j;
+
+public enum DiagnosticTag {
+
+ /**
+ * Unused or unnecessary code.
+ * 
+ * Clients are allowed to render diagnostics with this tag faded out instead of having
+ * an error squiggle.
+ */
+ Unnecessary(1),
+
+ /**
+ * Deprecated or obsolete code.
+ * 
+ * Clients are allowed to rendered diagnostics with this tag strike through.
+ */
+ Deprecated(2);
+
+ private final int value;
+
+ DiagnosticTag(int value) {
+ this.value = value;
+ }
+
+ public int getValue() {
+ return value;
+ }
+
+ public static DiagnosticTag forValue(int value) {
+ DiagnosticTag[] allValues = DiagnosticTag.values();
+ if (value < 1 || value > allValues.length)
+ throw new IllegalArgumentException("Illegal enum value: " + value);
+ return allValues[value - 1];
+ }
+}

org.eclipse.lsp4j/src/main/java/org/eclipse/lsp4j/Protocol.xtend

@@ -1558,6 +1558,11 @@ class Diagnostic {
  @NonNull
  String message
 
+ /**
+ * Additional metadata about the diagnostic.
+ */
+ List<DiagnosticTag> tags;
+
  /**
  * An array of related diagnostic information, e.g. when symbol-names within a scope collide
  * all definitions can be marked via this property.

org.eclipse.lsp4j/src/main/xtend-gen/org/eclipse/lsp4j/Diagnostic.java

@@ -14,6 +14,7 @@
 import java.util.List;
 import org.eclipse.lsp4j.DiagnosticRelatedInformation;
 import org.eclipse.lsp4j.DiagnosticSeverity;
+import org.eclipse.lsp4j.DiagnosticTag;
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.jsonrpc.validation.NonNull;
 import org.eclipse.lsp4j.util.Preconditions;
@@ -53,6 +54,11 @@ public class Diagnostic {
  @NonNull
  private String message;
 
+ /**
+ * Additional metadata about the diagnostic.
+ */
+ private List<DiagnosticTag> tags;
+
  /**
  * An array of related diagnostic information, e.g. when symbol-names within a scope collide
  * all definitions can be marked via this property.
@@ -159,6 +165,21 @@ public void setMessage(@NonNull final String message) {
  this.message = Preconditions.checkNotNull(message, "message");
  }
 
+ /**
+ * Additional metadata about the diagnostic.
+ */
+ @Pure
+ public List<DiagnosticTag> getTags() {
+ return this.tags;
+ }
+
+ /**
+ * Additional metadata about the diagnostic.
+ */
+ public void setTags(final List<DiagnosticTag> tags) {
+ this.tags = tags;
+ }
+
  /**
  * An array of related diagnostic information, e.g. when symbol-names within a scope collide
  * all definitions can be marked via this property.
@@ -189,6 +210,7 @@ public String toString() {
  b.add("code", this.code);
  b.add("source", this.source);
  b.add("message", this.message);
+ b.add("tags", this.tags);
  b.add("relatedInformation", this.relatedInformation);
  return b.toString();
  }
@@ -228,6 +250,11 @@ public boolean equals(final Object obj) {
  return false;
  } else if (!this.message.equals(other.message))
  return false;
+ if (this.tags == null) {
+ if (other.tags != null)
+ return false;
+ } else if (!this.tags.equals(other.tags))
+ return false;
  if (this.relatedInformation == null) {
  if (other.relatedInformation != null)
  return false;
@@ -246,6 +273,7 @@ public int hashCode() {
  result = prime * result + ((this.code== null) ? 0 : this.code.hashCode());
  result = prime * result + ((this.source== null) ? 0 : this.source.hashCode());
  result = prime * result + ((this.message== null) ? 0 : this.message.hashCode());
+ result = prime * result + ((this.tags== null) ? 0 : this.tags.hashCode());
  return prime * result + ((this.relatedInformation== null) ? 0 : this.relatedInformation.hashCode());
  }
 }