From cfba2fddf26854857ca9831dde579267d749d542 Mon Sep 17 00:00:00 2001
From: Esther Perelman <wwr1109@gmail.com>
Date: Thu, 17 Sep 2020 18:57:34 +0300
Subject: [PATCH] Issue-8310

Issue-8310: Deprecated code completions crash

Signed-off-by: Esther Perelman <wwr1109@gmail.com>
---
 packages/plugin-ext/src/plugin/plugin-context.ts |  2 ++
 packages/plugin-ext/src/plugin/types-impl.ts     |  5 +++++
 packages/plugin/src/theia.d.ts                   | 16 ++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/packages/plugin-ext/src/plugin/plugin-context.ts b/packages/plugin-ext/src/plugin/plugin-context.ts
index 44905f41346ed..2216e8d7da7f6 100644
--- a/packages/plugin-ext/src/plugin/plugin-context.ts
+++ b/packages/plugin-ext/src/plugin/plugin-context.ts
@@ -64,6 +64,7 @@ import {
     DiagnosticRelatedInformation,
     DiagnosticSeverity,
     DiagnosticTag,
+    CompletionItemTag,
     Location,
     LogLevel,
     Progress,
@@ -850,6 +851,7 @@ export function createAPIFactory(
             Location,
             LogLevel,
             DiagnosticTag,
+            CompletionItemTag,
             Diagnostic,
             CompletionTriggerKind,
             TextEdit,
diff --git a/packages/plugin-ext/src/plugin/types-impl.ts b/packages/plugin-ext/src/plugin/types-impl.ts
index f083e2c6e5ef6..7542240c33fd3 100644
--- a/packages/plugin-ext/src/plugin/types-impl.ts
+++ b/packages/plugin-ext/src/plugin/types-impl.ts
@@ -736,6 +736,7 @@ export class CompletionItem implements theia.CompletionItem {
 
     label: string;
     kind?: CompletionItemKind;
+    tags?: CompletionItemTag[];
     detail: string;
     documentation: string | MarkdownString;
     sortText: string;
@@ -811,6 +812,10 @@ export enum DiagnosticTag {
     Unnecessary = 1,
 }
 
+export enum CompletionItemTag {
+    Deprecated = 1,
+}
+
 export class Diagnostic {
     range: Range;
     message: string;
diff --git a/packages/plugin/src/theia.d.ts b/packages/plugin/src/theia.d.ts
index a613d7610f753..c98a4ad227002 100644
--- a/packages/plugin/src/theia.d.ts
+++ b/packages/plugin/src/theia.d.ts
@@ -6351,6 +6351,17 @@ declare module '@theia/plugin' {
         TypeParameter = 24
     }
 
+    /**
+     * Completion item tags are extra annotations that tweak the rendering of a completion
+     * item.
+     */
+    export enum CompletionItemTag {
+        /**
+         * Render a completion as obsolete, usually using a strike-out.
+         */
+        Deprecated = 1
+    }
+
     /**
      * A completion item represents a text snippet that is proposed to complete text that is being typed.
      *
@@ -6387,6 +6398,11 @@ declare module '@theia/plugin' {
          */
         detail?: string;
 
+        /**
+         * Tags for this completion item.
+         */
+        tags?: ReadonlyArray<CompletionItemTag>;
+
         /**
          * A human-readable string that represents a doc-comment.
          */