From 63554b9dbf564999c2295b4f4c653b19204f4c21 Mon Sep 17 00:00:00 2001
From: Rob Lourens <roblourens@gmail.com>
Date: Wed, 24 May 2017 14:38:56 -0700
Subject: [PATCH] Fix Microsoft/vscode#25594 - respect stackTrace range
 arguments

---
 src/chrome/chromeDebugAdapter.ts | 10 ++++++++--
 src/debugAdapterInterfaces.d.ts  |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/chrome/chromeDebugAdapter.ts b/src/chrome/chromeDebugAdapter.ts
index 1d0f43ba7..31b82a205 100644
--- a/src/chrome/chromeDebugAdapter.ts
+++ b/src/chrome/chromeDebugAdapter.ts
@@ -1218,7 +1218,12 @@ export abstract class ChromeDebugAdapter implements IDebugAdapter {
 
         // Only process at the requested number of frames, if 'levels' is specified
         let stack = this._currentPauseNotification.callFrames;
-        if (args.levels) {
+        const totalFrames = stack.length;
+        if (typeof args.startFrame === 'number') {
+            stack = stack.slice(args.startFrame);
+        }
+
+        if (typeof args.levels === 'number') {
             stack = stack.filter((_, i) => i < args.levels);
         }
 
@@ -1226,7 +1231,8 @@ export abstract class ChromeDebugAdapter implements IDebugAdapter {
             .concat(this.asyncFrames(this._currentPauseNotification.asyncStackTrace));
 
         const stackTraceResponse: IInternalStackTraceResponseBody = {
-            stackFrames
+            stackFrames,
+            totalFrames
         };
         this._pathTransformer.stackTraceResponse(stackTraceResponse);
         this._sourceMapTransformer.stackTraceResponse(stackTraceResponse);
diff --git a/src/debugAdapterInterfaces.d.ts b/src/debugAdapterInterfaces.d.ts
index deaa01ad0..89dc61d6c 100644
--- a/src/debugAdapterInterfaces.d.ts
+++ b/src/debugAdapterInterfaces.d.ts
@@ -87,6 +87,7 @@ export interface IThreadsResponseBody {
 
 export interface IStackTraceResponseBody {
     stackFrames: DebugProtocol.StackFrame[];
+    totalFrames?: number;
 }
 
 export interface IInternalStackFrame extends DebugProtocol.StackFrame {