From 0401553810be4f08d3ea148effc755363f0fff1a Mon Sep 17 00:00:00 2001
From: Jason Freeman <jfreeman@microsoft.com>
Date: Fri, 8 May 2015 13:58:20 -0700
Subject: [PATCH] Type check all files when emitting a file under -out

---
 src/compiler/program.ts                       |  7 +++++-
 .../reference/getEmitOutputOut.baseline       | 12 ++++++++++
 tests/cases/fourslash/getEmitOutputOut.ts     | 23 +++++++++++++++++++
 3 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 tests/baselines/reference/getEmitOutputOut.baseline
 create mode 100644 tests/cases/fourslash/getEmitOutputOut.ts

diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 1e628326ba..3bd4bdc7ac 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -219,7 +219,12 @@ module ts {
             // Create the emit resolver outside of the "emitTime" tracking code below.  That way
             // any cost associated with it (like type checking) are appropriate associated with
             // the type-checking counter.
-            let emitResolver = getDiagnosticsProducingTypeChecker().getEmitResolver(sourceFile);
+            //
+            // If the -out option is specified, we should not pass the source file to getEmitResolver.
+            // This is because in the -out scenario all files need to be emitted, and therefore all
+            // files need to be type checked. And the way to specify that all files need to be type
+            // checked is to not pass the file to getEmitResolver.
+            let emitResolver = getDiagnosticsProducingTypeChecker().getEmitResolver(options.out ? undefined : sourceFile);
 
             let start = new Date().getTime();
 
diff --git a/tests/baselines/reference/getEmitOutputOut.baseline b/tests/baselines/reference/getEmitOutputOut.baseline
new file mode 100644
index 0000000000..9508b6d557
--- /dev/null
+++ b/tests/baselines/reference/getEmitOutputOut.baseline
@@ -0,0 +1,12 @@
+EmitSkipped: false
+FileName : out.js
+/// <reference path='my.d.ts' />
+var foo;
+(function (foo) {
+    var bar;
+    (function (bar) {
+        var baz1 = bar.Baz.prototype; // Should emit as bar.Baz.prototype
+    })(bar = foo.bar || (foo.bar = {}));
+})(foo || (foo = {}));
+var x;
+
diff --git a/tests/cases/fourslash/getEmitOutputOut.ts b/tests/cases/fourslash/getEmitOutputOut.ts
new file mode 100644
index 0000000000..077b257e4d
--- /dev/null
+++ b/tests/cases/fourslash/getEmitOutputOut.ts
@@ -0,0 +1,23 @@
+/// <reference path="fourslash.ts" />
+
+// @BaselineFile: getEmitOutputOut.baseline
+// @out: out.js
+
+// @Filename: my.d.ts
+// @emitThisFile: false
+////declare module foo.bar {
+////    class Baz { }
+////}
+
+// @Filename: input0.ts
+// @emitThisFile: false
+/////// <reference path='my.d.ts' />
+////module foo.bar {
+////    var baz1 = <any>Baz.prototype; // Should emit as bar.Baz.prototype
+////}
+
+// @Filename: input1.ts
+// @emitThisFile: true
+////var x;
+
+verify.baselineGetEmitOutput();
\ No newline at end of file