From 24201cfe6e7c561b7f1e23b536460f9e65d6a409 Mon Sep 17 00:00:00 2001
From: Zixiang Li <xiaofalzx@gmail.com>
Date: Wed, 21 Aug 2019 05:49:40 +0800
Subject: [PATCH] Add support for jsdoc properties with hyphen (#32631)

---
 src/compiler/scanner.ts                      |  2 +-
 tests/cases/fourslash/jsDocTagsWithHyphen.ts | 24 ++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 tests/cases/fourslash/jsDocTagsWithHyphen.ts

diff --git a/src/compiler/scanner.ts b/src/compiler/scanner.ts
index 3f7db7d2eb3..af9f565fb52 100644
--- a/src/compiler/scanner.ts
+++ b/src/compiler/scanner.ts
@@ -2182,7 +2182,7 @@ namespace ts {
 
             if (isIdentifierStart(ch, languageVersion)) {
                 let char = ch;
-                while (pos < end && isIdentifierPart(char = codePointAt(text, pos), languageVersion)) pos += charSize(char);
+                while (pos < end && isIdentifierPart(char = codePointAt(text, pos), languageVersion) || text.charCodeAt(pos) === CharacterCodes.minus) pos += charSize(char);
                 tokenValue = text.substring(tokenPos, pos);
                 if (char === CharacterCodes.backslash) {
                     tokenValue += scanIdentifierParts();
diff --git a/tests/cases/fourslash/jsDocTagsWithHyphen.ts b/tests/cases/fourslash/jsDocTagsWithHyphen.ts
new file mode 100644
index 00000000000..188c4298bcb
--- /dev/null
+++ b/tests/cases/fourslash/jsDocTagsWithHyphen.ts
@@ -0,0 +1,24 @@
+///<reference path="fourslash.ts" />
+// @allowJs: true
+// @Filename: dummy.js
+
+//// /**
+////  * @typedef Product
+////  * @property {string} title
+////  * @property {boolean} h/*1*/igh-top some-comments
+////  */
+//// 
+//// /**
+////  * @type {Pro/*2*/duct}
+////  */
+//// const product = {
+////     /*3*/
+//// }
+verify.quickInfoAt('1', '(property) high-top: boolean', 'some-comments');
+
+verify.quickInfoAt('2', 'type Product = {\n    title: string;\n    high-top: boolean;\n}');
+
+verify.completions({
+  marker: ['3'],
+  includes: ['"high-top"']
+});