Debugger API to enable/disable debugging of libraries

tools/ddbg.dart

Index: tools/ddbg.dart
===================================================================
--- tools/ddbg.dart	(revision 9763)
+++ tools/ddbg.dart	(working copy)
@@ -42,6 +42,7 @@
   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
@@ -137,6 +138,11 @@
     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) {
+    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]) }};
@@ -238,7 +244,9 @@
 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) {
@@ -258,6 +266,13 @@
 }
 
 
+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++) {