From f780d68499fcd0e290ba8608ede39a92fd6b2584 Mon Sep 17 00:00:00 2001
From: Ryan Cavanaugh <RyanCavanaugh@users.noreply.github.com>
Date: Mon, 28 Sep 2015 16:11:10 -0700
Subject: [PATCH] Allow /* comments between < and JSX element name

---
 src/compiler/parser.ts                        |  1 +
 src/compiler/scanner.ts                       |  4 +++-
 tests/baselines/reference/tsxParseTests2.js   | 11 +++++++++++
 .../reference/tsxParseTests2.symbols          | 18 ++++++++++++++++++
 .../baselines/reference/tsxParseTests2.types  | 19 +++++++++++++++++++
 .../cases/conformance/jsx/tsxParseTests2.tsx  |  8 ++++++++
 6 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 tests/baselines/reference/tsxParseTests2.js
 create mode 100644 tests/baselines/reference/tsxParseTests2.symbols
 create mode 100644 tests/baselines/reference/tsxParseTests2.types
 create mode 100644 tests/cases/conformance/jsx/tsxParseTests2.tsx

diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index 23fb846c0b4..14752945f84 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -3183,6 +3183,7 @@ namespace ts {
                     if (sourceFile.languageVariant !== LanguageVariant.JSX) {
                         return parseTypeAssertion();
                     }
+                    debugger;
                     if (lookAhead(nextTokenIsIdentifierOrKeyword)) {
                         return parseJsxElementOrSelfClosingElement(/*inExpressionContext*/ true);
                     }
diff --git a/src/compiler/scanner.ts b/src/compiler/scanner.ts
index 58ca14ab577..2ca075e1786 100644
--- a/src/compiler/scanner.ts
+++ b/src/compiler/scanner.ts
@@ -1361,7 +1361,9 @@ namespace ts {
                         if (text.charCodeAt(pos + 1) === CharacterCodes.equals) {
                             return pos += 2, token = SyntaxKind.LessThanEqualsToken;
                         }
-                        if (text.charCodeAt(pos + 1) === CharacterCodes.slash && languageVariant === LanguageVariant.JSX) {
+                        if (text.charCodeAt(pos + 1) === CharacterCodes.slash &&
+                                text.charCodeAt(pos + 2) !== CharacterCodes.asterisk &&
+                                languageVariant === LanguageVariant.JSX) {
                             return pos += 2, token = SyntaxKind.LessThanSlashToken;
                         }
                         return pos++, token = SyntaxKind.LessThanToken;
diff --git a/tests/baselines/reference/tsxParseTests2.js b/tests/baselines/reference/tsxParseTests2.js
new file mode 100644
index 00000000000..c179d75776a
--- /dev/null
+++ b/tests/baselines/reference/tsxParseTests2.js
@@ -0,0 +1,11 @@
+//// [tsxParseTests2.tsx]
+declare module JSX {
+	interface Element { }
+	interface IntrinsicElements { div; span; }
+}
+
+var x = </**/div></div>;
+
+
+//// [tsxParseTests2.jsx]
+var x = <div></div>;
diff --git a/tests/baselines/reference/tsxParseTests2.symbols b/tests/baselines/reference/tsxParseTests2.symbols
new file mode 100644
index 00000000000..17b612df786
--- /dev/null
+++ b/tests/baselines/reference/tsxParseTests2.symbols
@@ -0,0 +1,18 @@
+=== tests/cases/conformance/jsx/tsxParseTests2.tsx ===
+declare module JSX {
+>JSX : Symbol(JSX, Decl(tsxParseTests2.tsx, 0, 0))
+
+	interface Element { }
+>Element : Symbol(Element, Decl(tsxParseTests2.tsx, 0, 20))
+
+	interface IntrinsicElements { div; span; }
+>IntrinsicElements : Symbol(IntrinsicElements, Decl(tsxParseTests2.tsx, 1, 22))
+>div : Symbol(div, Decl(tsxParseTests2.tsx, 2, 30))
+>span : Symbol(span, Decl(tsxParseTests2.tsx, 2, 35))
+}
+
+var x = </**/div></div>;
+>x : Symbol(x, Decl(tsxParseTests2.tsx, 5, 3))
+>div : Symbol(JSX.IntrinsicElements.div, Decl(tsxParseTests2.tsx, 2, 30))
+>div : Symbol(JSX.IntrinsicElements.div, Decl(tsxParseTests2.tsx, 2, 30))
+
diff --git a/tests/baselines/reference/tsxParseTests2.types b/tests/baselines/reference/tsxParseTests2.types
new file mode 100644
index 00000000000..5714a4d3483
--- /dev/null
+++ b/tests/baselines/reference/tsxParseTests2.types
@@ -0,0 +1,19 @@
+=== tests/cases/conformance/jsx/tsxParseTests2.tsx ===
+declare module JSX {
+>JSX : any
+
+	interface Element { }
+>Element : Element
+
+	interface IntrinsicElements { div; span; }
+>IntrinsicElements : IntrinsicElements
+>div : any
+>span : any
+}
+
+var x = </**/div></div>;
+>x : JSX.Element
+></**/div></div> : JSX.Element
+>div : any
+>div : any
+
diff --git a/tests/cases/conformance/jsx/tsxParseTests2.tsx b/tests/cases/conformance/jsx/tsxParseTests2.tsx
new file mode 100644
index 00000000000..9ced9b93b79
--- /dev/null
+++ b/tests/cases/conformance/jsx/tsxParseTests2.tsx
@@ -0,0 +1,8 @@
+//@filename: file.tsx
+//@jsx: preserve
+declare module JSX {
+	interface Element { }
+	interface IntrinsicElements { div; span; }
+}
+
+var x = </**/div></div>;