Debugger API to enable/disable debugging of libraries

tools/ddbg.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Simple interactive debugger shell that connects to the Dart VM's debugger
 // connection port.
 
 #import("dart:io");
 #import("dart:json");
 #import("dart:utf");
@@ skipping 24 matching lines @@
   s   Single step
   so  Step over
   si  Step into
   sbp [<file>] <line> Set breakpoint
   rbp <id> Remove breakpoint with given id
   po <id> Print object info for given id
   pl <id> <idx> [<len>] Print list element/slice
   pc <id> Print class info for given id
   ll  List loaded libraries
   plib <id> Print library info for given library id
+  slib <id> <true|false> Set library id debuggable
   pg <id> Print all global variables visible within given library id
   ls <lib_id> List loaded scripts in library
   gs <lib_id> <script_url> Get source text of script in library
   epi <none|all|unhandled>  Set exception pause info
   h   Print help
 """);
 }
 
 
 void quitShell() {
@@ skipping 75 matching lines @@
     }
     sendCmd(cmd).then((result) => handleGetListResponse(result));
   } else if (command == "pc" && args.length == 2) {
     var cmd = { "id": seqNum, "command": "getClassProperties",
                 "params": {"classId": Math.parseInt(args[1]) }};
     sendCmd(cmd).then((result) => handleGetClassPropsResponse(result));
   } else if (command == "plib" && args.length == 2) {
     var cmd = { "id": seqNum, "command": "getLibraryProperties",
                 "params": {"libraryId": Math.parseInt(args[1]) }};
     sendCmd(cmd).then((result) => handleGetLibraryPropsResponse(result));
+  } else if (command == "slib" && args.length == 3) {

[regis, 2012/07/19 20:40:57]

This source file is not following our (C++) style guide. I guess we do not
require parentheses in Dart sources as we do in C++ sources?

[hausner, 2012/07/19 22:50:35]

I don't see anything in the style guide that requires them. And I hope we don't
add it :-)

+    var cmd = { "id": seqNum, "command": "setLibraryProperties",
+                "params": {"libraryId": Math.parseInt(args[1]),
+                           "debuggingEnabled": args[2] }};
+    sendCmd(cmd).then((result) => handleSetLibraryPropsResponse(result));
   } else if (command == "pg" && args.length == 2) {
     var cmd = { "id": seqNum, "command": "getGlobalVariables",
                 "params": {"libraryId": Math.parseInt(args[1]) }};
     sendCmd(cmd).then((result) => handleGetGlobalVarsResponse(result));
   } else if (command == "gs" && args.length == 3) {
     var cmd = { "id": seqNum, "command":  "getScriptSource",
                 "params": { "libraryId": Math.parseInt(args[1]),
                             "url": args[2] }};
     sendCmd(cmd).then((result) => handleGetSourceResponse(result));
   } else if (command == "epi" && args.length == 2) {
@@ skipping 81 matching lines @@
     for (int i = 0; i < fields.length; i++) {
       printNamedObject(fields[i]);
     }
   }
 }
 
 
 handleGetLibraryPropsResponse(response) {
   Map props = response["result"];
   assert(props["url"] != null);
-  print("  library url=${props["url"]}");
+  print("  library url: ${props["url"]}");
+  assert(props["debuggingEnabled"] != null);
+  print("  debugging enabled: ${props["debuggingEnabled"]}");
   List imports = props["imports"];
   assert(imports != null);
   if (imports.length > 0) {
     print("  imports:");
     for (int i = 0; i < imports.length; i++) {
       print("    id ${imports[i]["libraryId"]} prefix ${imports[i]["prefix"]}");
     }
   }
   List globals = props["globals"];
   assert(globals != null);
   if (globals.length > 0) {
     print("  global variables:");
     for (int i = 0; i < globals.length; i++) {
       printNamedObject(globals[i]);
     }
   }
 }
 
 
+handleSetLibraryPropsResponse(response) {
+  Map props = response["result"];
+  assert(props["debuggingEnabled"] != null);
+  print("  debugging enabled: ${props["debuggingEnabled"]}");
+}
+
+
 handleGetGlobalVarsResponse(response) {
   List globals = response["result"]["globals"];
   for (int i = 0; i < globals.length; i++) {
     printNamedObject(globals[i]);
   }
 }
 
 
 handleGetSourceResponse(response) {
   Map result = response["result"];
@@ skipping 164 matching lines @@
   };
   vmInStream.onError = (err) {
     print("Error in debug connection: $err");
     quitShell();
   };
   vmInStream.onClosed = () {
     print("VM debugger connection closed");
     quitShell();
   };
 }