From 247aa77cb458f4aefbd03cff83dbfbc651eea9d0 Mon Sep 17 00:00:00 2001
From: Sashko Stubailo <sashko@stubailo.com>
Date: Thu, 6 Aug 2015 16:19:19 -0700
Subject: [PATCH] Change the way parseStack returns the stack to be fiber-aware

---
 tools/buildmessage.js      | 8 +++++++-
 tools/selftest.js          | 2 +-
 tools/utils/parse-stack.js | 7 ++++---
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/tools/buildmessage.js b/tools/buildmessage.js
index 287782424b..6d638c482f 100644
--- a/tools/buildmessage.js
+++ b/tools/buildmessage.js
@@ -433,7 +433,13 @@ var error = function (message, options) {
 
   if ('useMyCaller' in info) {
     if (info.useMyCaller) {
-      info.stack = parseStack.parse(new Error()).slice(2);
+      const {
+        insideFiber,
+        outsideFiber
+      } = parseStack.parse(new Error());
+
+      // Concatenate and get rid of lines about Future and buildmessage
+      info.stack = outsideFiber.concat(insideFiber).slice(2);
       if (typeof info.useMyCaller === 'number') {
         info.stack = info.stack.slice(info.useMyCaller);
       }
diff --git a/tools/selftest.js b/tools/selftest.js
index 1205180b9f..e4f27836dc 100644
--- a/tools/selftest.js
+++ b/tools/selftest.js
@@ -1805,7 +1805,7 @@ var runTests = function (options) {
       testList.notifyFailed(test);
 
       if (failure instanceof TestFailure) {
-        var frames = parseStack.parse(failure);
+        var frames = parseStack.parse(failure).outsideFiber;
         var relpath = files.pathRelative(files.getCurrentToolsDir(),
                                          frames[0].file);
         Console.rawError("  => " + failure.reason + " at " +
diff --git a/tools/utils/parse-stack.js b/tools/utils/parse-stack.js
index c570d5aff8..2cdc5c72a0 100644
--- a/tools/utils/parse-stack.js
+++ b/tools/utils/parse-stack.js
@@ -38,9 +38,10 @@ export function parse(err) {
   const outsideFiber = parseStackFrames(frames);
   const insideFiber = parseStackFrames(frames.slice(indexOfFiberSplit + 1));
 
-  // Put the frames below the split at the top of the printed stack trace, since
-  // they are more likely to contain the code that actually threw the error.
-  return insideFiber.concat(outsideFiber);
+  return {
+    insideFiber,
+    outsideFiber
+  };
 }
 
 // Decorator. Mark the point at which a stack trace returned by