Fixes #173 - implementation for function breakpoints

src/PowerShellEditorServices.Protocol/Client/DebugAdapterClientBase.cs

@@ -17,14 +17,15 @@ public DebugAdapterClient(ChannelBase clientChannel)
         {
         }
 
-        public Task LaunchScript(string scriptFilePath)
+        public async Task LaunchScript(string scriptFilePath)
         {
-            return this.SendRequest(
+            await this.SendRequest(
                 LaunchRequest.Type,
-                new LaunchRequestArguments
-                {
+                new LaunchRequestArguments {
                     Program = scriptFilePath
                 });
+
+            await this.SendRequest(ConfigurationDoneRequest.Type, null);
         }
 
         protected override async Task OnStart()

src/PowerShellEditorServices.Protocol/DebugAdapter/Breakpoint.cs

@@ -21,7 +21,7 @@ public class Breakpoint
 
         public string Source { get; set; }
 
-        public int Line { get; set; }
+        public int? Line { get; set; }
 
         public int? Column { get; set; }
 
@@ -41,5 +41,14 @@ public static Breakpoint Create(
                 Column = breakpointDetails.ColumnNumber
             };
         }
+
+        public static Breakpoint Create(
+            FunctionBreakpointDetails breakpointDetails)
+        {
+            return new Breakpoint {
+                Verified = breakpointDetails.Verified,
+                Message = breakpointDetails.Message
+            };
+        }
     }
 }

src/PowerShellEditorServices.Protocol/DebugAdapter/ConfigurationDoneRequest.cs

@@ -0,0 +1,16 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol;
+
+namespace Microsoft.PowerShell.EditorServices.Protocol.DebugAdapter
+{
+    public class ConfigurationDoneRequest
+    {
+        public static readonly
+            RequestType<object, object> Type =
+            RequestType<object, object>.Create("configurationDone");
+    }
+}

src/PowerShellEditorServices.Protocol/DebugAdapter/SetFunctionBreakpointsRequest.cs

@@ -0,0 +1,31 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol;
+
+namespace Microsoft.PowerShell.EditorServices.Protocol.DebugAdapter
+{
+    public class SetFunctionBreakpointsRequest
+    {
+        public static readonly
+            RequestType<SetFunctionBreakpointsRequestArguments, SetBreakpointsResponseBody> Type =
+            RequestType<SetFunctionBreakpointsRequestArguments, SetBreakpointsResponseBody>.Create("setFunctionBreakpoints");
+    }
+
+    public class SetFunctionBreakpointsRequestArguments
+    {
+        public FunctionBreakpoint[] Breakpoints { get; set; }
+    }
+
+    public class FunctionBreakpoint
+    {
+        /// <summary>
+        /// Gets or sets the name of the function to break on when it is invoked.
+        /// </summary>
+        public string Name { get; set; }
+
+        public string Condition { get; set; }
+    }
+}

src/PowerShellEditorServices.Protocol/PowerShellEditorServices.Protocol.csproj

@@ -50,7 +50,9 @@
   <ItemGroup>
     <Compile Include="DebugAdapter\AttachRequest.cs" />
     <Compile Include="DebugAdapter\Breakpoint.cs" />
+    <Compile Include="DebugAdapter\ConfigurationDoneRequest.cs" />
     <Compile Include="DebugAdapter\ContinueRequest.cs" />
+    <Compile Include="DebugAdapter\SetFunctionBreakpointsRequest.cs" />
     <Compile Include="LanguageServer\FindModuleRequest.cs" />
     <Compile Include="LanguageServer\InstallModuleRequest.cs" />
     <Compile Include="MessageProtocol\IMessageSender.cs" />

src/PowerShellEditorServices.Protocol/Server/DebugAdapter.cs

@@ -20,6 +20,8 @@ public class DebugAdapter : DebugAdapterBase
     {
         private EditorSession editorSession;
         private OutputDebouncer outputDebouncer;
+        private string scriptPathToLaunch;
+        private string arguments;
 
         public DebugAdapter() : this(new StdioServerChannel())
         {
@@ -42,10 +44,12 @@ protected override void Initialize()
 
             this.SetRequestHandler(LaunchRequest.Type, this.HandleLaunchRequest);
             this.SetRequestHandler(AttachRequest.Type, this.HandleAttachRequest);
+            this.SetRequestHandler(ConfigurationDoneRequest.Type, this.HandleConfigurationDoneRequest);
             this.SetRequestHandler(DisconnectRequest.Type, this.HandleDisconnectRequest);
 
             this.SetRequestHandler(SetBreakpointsRequest.Type, this.HandleSetBreakpointsRequest);
             this.SetRequestHandler(SetExceptionBreakpointsRequest.Type, this.HandleSetExceptionBreakpointsRequest);
+            this.SetRequestHandler(SetFunctionBreakpointsRequest.Type, this.HandleSetFunctionBreakpointsRequest);
 
             this.SetRequestHandler(ContinueRequest.Type, this.HandleContinueRequest);
             this.SetRequestHandler(NextRequest.Type, this.HandleNextRequest);
@@ -110,12 +114,35 @@ protected async Task HandleLaunchRequest(
                 Logger.Write(LogLevel.Verbose, "Script arguments are: " + arguments);
             }
 
+            // NOTE: We don't actually launch the script in response to this
+            // request.  We wait until we receive the configurationDone request
+            // to actually launch the script under the debugger.  This gives
+            // us and VSCode a chance to finish configuring all the types of
+            // breakpoints.
+            this.scriptPathToLaunch = launchParams.Program;
+            this.arguments = arguments;
+
+            await requestContext.SendResult(null);
+        }
+
+        protected Task HandleAttachRequest(
+            AttachRequestArguments attachParams,
+            RequestContext<object> requestContext)
+        {
+            // TODO: Implement this once we support attaching to processes
+            throw new NotImplementedException();
+        }
+
+        protected async Task HandleConfigurationDoneRequest(
+            object args,
+            RequestContext<object> requestContext)
+        {
             // Execute the given PowerShell script and send the response.
             // Note that we aren't waiting for execution to complete here
             // because the debugger could stop while the script executes.
             Task executeTask =
                 editorSession.PowerShellContext
-                    .ExecuteScriptAtPath(launchParams.Program, arguments)
+                    .ExecuteScriptAtPath(this.scriptPathToLaunch, this.arguments)
                     .ContinueWith(
                         async (t) => {
                             Logger.Write(LogLevel.Verbose, "Execution completed, terminating...");
@@ -131,14 +158,6 @@ await requestContext.SendEvent(
             await requestContext.SendResult(null);
         }
 
-        protected Task HandleAttachRequest(
-            AttachRequestArguments attachParams,
-            RequestContext<object> requestContext)
-        {
-            // TODO: Implement this once we support attaching to processes
-            throw new NotImplementedException();
-        }
-
         protected Task HandleDisconnectRequest(
             object disconnectParams,
             RequestContext<object> requestContext)
@@ -198,6 +217,32 @@ await requestContext.SendResult(
                 });
         }
 
+        protected async Task HandleSetFunctionBreakpointsRequest(
+            SetFunctionBreakpointsRequestArguments setBreakpointsParams,
+            RequestContext<SetBreakpointsResponseBody> requestContext)
+        {
+            var breakpointDetails = new FunctionBreakpointDetails[setBreakpointsParams.Breakpoints.Length];
+            for (int i = 0; i < breakpointDetails.Length; i++)
+            {
+                FunctionBreakpoint funcBreakpoint = setBreakpointsParams.Breakpoints[i];
+                breakpointDetails[i] = FunctionBreakpointDetails.Create(
+                    funcBreakpoint.Name,
+                    funcBreakpoint.Condition);
+            }
+
+            FunctionBreakpointDetails[] breakpoints =
+                await editorSession.DebugService.SetCommandBreakpoints(
+                    breakpointDetails);
+
+            await requestContext.SendResult(
+                new SetBreakpointsResponseBody {
+                    Breakpoints =
+                        breakpoints
+                            .Select(Protocol.DebugAdapter.Breakpoint.Create)
+                            .ToArray()
+                });
+        }
+
         protected async Task HandleSetExceptionBreakpointsRequest(
             SetExceptionBreakpointsRequestArguments setExceptionBreakpointsParams,
             RequestContext<object> requestContext)

src/PowerShellEditorServices.Protocol/Server/DebugAdapterBase.cs

@@ -63,7 +63,9 @@ await requestContext.SendEvent(
             await requestContext.SendResult(
                 new InitializeResponseBody
                 {
+                    SupportsConfigurationDoneRequest = true,
                     SupportsConditionalBreakpoints = true,
+                    SupportsFunctionBreakpoints = true
                 });
         }
     }

src/PowerShellEditorServices/Debugging/BreakpointDetails.cs

@@ -13,20 +13,8 @@ namespace Microsoft.PowerShell.EditorServices
     /// Provides details about a breakpoint that is set in the
     /// PowerShell debugger.
     /// </summary>
-    public class BreakpointDetails
+    public class BreakpointDetails : BreakpointDetailsBase
     {
-        /// <summary>
-        /// Gets or sets a boolean indicator that if true, breakpoint could be set 
-        /// (but not necessarily at the desired location).  
-        /// </summary>
-        public bool Verified { get; set; }
-
-        /// <summary>
-        /// Gets or set an optional message about the state of the breakpoint. This is shown to the user 
-        /// and can be used to explain why a breakpoint could not be verified.
-        /// </summary>
-        public string Message { get; set; }
-
         /// <summary>
         /// Gets the source where the breakpoint is located.  Used only for debug purposes.
         /// </summary>
@@ -42,11 +30,6 @@ public class BreakpointDetails
         /// </summary>
         public int? ColumnNumber { get; private set; }
 
-        /// <summary>
-        /// Gets the breakpoint condition string.
-        /// </summary>
-        public string Condition { get; private set; }
-
         private BreakpointDetails()
         {
         }
@@ -91,7 +74,7 @@ public static BreakpointDetails Create(Breakpoint breakpoint)
             if (lineBreakpoint == null)
             {
                 throw new ArgumentException(
-                    "Expected breakpoint type:" + breakpoint.GetType().Name);
+                    "Unexpected breakpoint type: " + breakpoint.GetType().Name);
             }
 
             var breakpointDetails = new BreakpointDetails

src/PowerShellEditorServices/Debugging/BreakpointDetailsBase.cs

@@ -0,0 +1,31 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+namespace Microsoft.PowerShell.EditorServices
+{
+    /// <summary>
+    /// Provides details about a breakpoint that is set in the
+    /// PowerShell debugger.
+    /// </summary>
+    public abstract class BreakpointDetailsBase
+    {
+        /// <summary>
+        /// Gets or sets a boolean indicator that if true, breakpoint could be set 
+        /// (but not necessarily at the desired location).  
+        /// </summary>
+        public bool Verified { get; set; }
+
+        /// <summary>
+        /// Gets or set an optional message about the state of the breakpoint. This is shown to the user 
+        /// and can be used to explain why a breakpoint could not be verified.
+        /// </summary>
+        public string Message { get; set; }
+
+        /// <summary>
+        /// Gets the breakpoint condition string.
+        /// </summary>
+        public string Condition { get; protected set; }
+    }
+}