From 21ebc7132583bf306b5b3b27f0478dc6afa84289 Mon Sep 17 00:00:00 2001
From: Yui T <yuisu@microsoft.com>
Date: Thu, 20 Aug 2015 09:47:45 -0700
Subject: [PATCH] Don't emit detached comment if removeComment is true

---
 src/compiler/emitter.ts                           |  2 +-
 ...NotEmitdetachedCommentAtStartOfFunctionBody.js | 15 +++++++++++++++
 ...itdetachedCommentAtStartOfFunctionBody.symbols | 12 ++++++++++++
 ...EmitdetachedCommentAtStartOfFunctionBody.types | 13 +++++++++++++
 ...NotEmitdetachedCommentAtStartOfFunctionBody.ts | 10 ++++++++++
 5 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.js
 create mode 100644 tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.symbols
 create mode 100644 tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.types
 create mode 100644 tests/cases/compiler/doNotEmitdetachedCommentAtStartOfFunctionBody.ts

diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index 0363122f11f..4ab47346f16 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -7045,7 +7045,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, Promi
             }
 
             function emitDetachedComments(node: TextRange) {
-                let leadingComments = getLeadingCommentRanges(currentSourceFile.text, node.pos);
+                let leadingComments = filterComments(getLeadingCommentRanges(currentSourceFile.text, node.pos), node.pos === 0);
                 if (leadingComments) {
                     let detachedComments: CommentRange[] = [];
                     let lastComment: CommentRange;
diff --git a/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.js b/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.js
new file mode 100644
index 00000000000..7dd9c7ce679
--- /dev/null
+++ b/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.js
@@ -0,0 +1,15 @@
+//// [doNotEmitdetachedCommentAtStartOfFunctionBody.ts]
+function foo() {
+    /*
+
+        multi line
+        comment
+    */
+
+    return 42;
+}
+
+//// [doNotEmitdetachedCommentAtStartOfFunctionBody.js]
+function foo() {
+    return 42;
+}
diff --git a/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.symbols b/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.symbols
new file mode 100644
index 00000000000..a6f8e1514b5
--- /dev/null
+++ b/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.symbols
@@ -0,0 +1,12 @@
+=== tests/cases/compiler/doNotEmitdetachedCommentAtStartOfFunctionBody.ts ===
+function foo() {
+>foo : Symbol(foo, Decl(doNotEmitdetachedCommentAtStartOfFunctionBody.ts, 0, 0))
+
+    /*
+
+        multi line
+        comment
+    */
+
+    return 42;
+}
diff --git a/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.types b/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.types
new file mode 100644
index 00000000000..4271584ecbe
--- /dev/null
+++ b/tests/baselines/reference/doNotEmitdetachedCommentAtStartOfFunctionBody.types
@@ -0,0 +1,13 @@
+=== tests/cases/compiler/doNotEmitdetachedCommentAtStartOfFunctionBody.ts ===
+function foo() {
+>foo : () => number
+
+    /*
+
+        multi line
+        comment
+    */
+
+    return 42;
+>42 : number
+}
diff --git a/tests/cases/compiler/doNotEmitdetachedCommentAtStartOfFunctionBody.ts b/tests/cases/compiler/doNotEmitdetachedCommentAtStartOfFunctionBody.ts
new file mode 100644
index 00000000000..3d99de36d0a
--- /dev/null
+++ b/tests/cases/compiler/doNotEmitdetachedCommentAtStartOfFunctionBody.ts
@@ -0,0 +1,10 @@
+// @comments: false
+function foo() {
+    /*
+
+        multi line
+        comment
+    */
+
+    return 42;
+}
\ No newline at end of file