apply requested changes

Author: jeffy-g

src/services/completions.ts

@@ -875,10 +875,10 @@ namespace ts.Completions {
                 if (match && reJSDocFragment.lastIndex === jsdocFragment.length) {
                     return {
                         kind: match[1]
-                        // The current position is next to the '@' sign, when no tag name being provided yet.
-                        // Provide a full list of tag names
-                        ? CompletionDataKind.JsDocTagName:
-                          CompletionDataKind.JsDocTag
+                            // The current position is next to the '@' sign, when no tag name being provided yet.
+                            // Provide a full list of tag names
+                            ? CompletionDataKind.JsDocTagName
+                            : CompletionDataKind.JsDocTag
                     };
                 }
             }
@@ -888,6 +888,9 @@ namespace ts.Completions {
             // Completion should work in the brackets
             const tag = getJsDocTagAtPosition(currentToken, position);
             if (tag) {
+                if (tag.tagName.pos <= position && position <= tag.tagName.end) {
+                    return { kind: CompletionDataKind.JsDocTagName };
+                }
                 if (isTagWithTypeExpression(tag) && tag.typeExpression && tag.typeExpression.kind === SyntaxKind.JSDocTypeExpression) {
                     currentToken = getTokenAtPosition(sourceFile, position);
                     if (!currentToken ||

tests/cases/fourslash/completionsJsdocTag.ts

@@ -52,32 +52,6 @@
 //// */
 ////
 
-// 4x - jsdoc tag name completions should not occur
-/////**@/*40*/ */
-////
-/////**
-//// *@/*41*/
-//// */
-////
-/////**
-//// * @type {@/*42*/
-//// */
-////
-/////**
-//// +@/*43*/
-//// */
-////
-/////** some description @/*44*/ */
-////
-/////**
-//// * ### jsdoc @/*45*/
-//// */
-////
-/////**
-////@/*46*/
-//// */
-////
-
 // 5x - jsdoc tag completions should not occur
 /////**
 //// */*50*/
@@ -121,18 +95,6 @@ test.markerNames().forEach(marker => {
                 };
                 break;
 
-            // 4x - jsdoc tag name completions should not occur
-            // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-            //  before the fix, jsdoc tag names was listed but no longer appears
-            // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-            case 40: case 41: case 42: case 43: case 44: case 45: case 46:
-                completionOpt = {
-                    marker,
-                    triggerCharacter: "@",
-                    exact: []
-                };
-                break;
-
             // 5x - jsdoc tag completions should not occur
             // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
             //  before the fix, jsdoc tags was listed but no longer appears