Revision: 4045
Author: [email protected]
Date: Fri Mar  5 14:08:58 2010
Log: Basic implementation of liveedit feature

Review URL: http://codereview.chromium.org/652027
http://code.google.com/p/v8/source/detail?r=4045

Added:
 /branches/bleeding_edge/src/liveedit-delay.js
 /branches/bleeding_edge/test/mjsunit/debug-liveedit-1.js
 /branches/bleeding_edge/test/mjsunit/debug-liveedit-2.js
Modified:
 /branches/bleeding_edge/src/SConscript
 /branches/bleeding_edge/src/compiler.cc
 /branches/bleeding_edge/src/compiler.h
 /branches/bleeding_edge/src/debug-delay.js
 /branches/bleeding_edge/src/debug.cc
 /branches/bleeding_edge/src/debug.h
 /branches/bleeding_edge/src/flag-definitions.h
 /branches/bleeding_edge/src/liveedit.cc
 /branches/bleeding_edge/src/liveedit.h
 /branches/bleeding_edge/src/runtime.cc
 /branches/bleeding_edge/src/runtime.h
 /branches/bleeding_edge/test/mjsunit/debug-script.js
 /branches/bleeding_edge/tools/gyp/v8.gyp
 /branches/bleeding_edge/tools/visual_studio/js2c.cmd
 /branches/bleeding_edge/tools/visual_studio/v8.vcproj
 /branches/bleeding_edge/tools/visual_studio/v8_arm.vcproj
 /branches/bleeding_edge/tools/visual_studio/v8_x64.vcproj

=======================================
--- /dev/null
+++ /branches/bleeding_edge/src/liveedit-delay.js       Fri Mar  5 14:08:58 2010
@@ -0,0 +1,366 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// LiveEdit feature implementation. The script should be executed after
+// debug-delay.js.
+
+
+// Changes script text and recompiles all relevant functions if possible.
+// The change is always a substring (change_pos, change_pos + change_len)
+// being replaced with a completely different string new_str.
+//
+// Only one function will have its Code changed in result of this function.
+// All nested functions (should they have any instances at the moment) are left +// unchanged and re-linked to a newly created script instance representing old
+// version of the source. (Generally speaking,
+// during the change all nested functions are erased and completely different
+// set of nested functions are introduced.) All other functions just have
+// their positions updated.
+//
+// @param {Script} script that is being changed
+// @param {Array} change_log a list that collects engineer-readable description
+//     of what happened.
+Debug.LiveEditChangeScript = function(script, change_pos, change_len, new_str,
+    change_log) {
+
+  function Assert(condition, message) {
+    if (!condition) {
+      if (message) {
+        throw "Assert " + message;
+      } else {
+        throw "Assert";
+      }
+    }
+  }
+
+  // An object describing function compilation details. Its index fields
+  // apply to indexes inside array that stores these objects.
+  function FunctionCompileInfo(raw_array) {
+    this.function_name = raw_array[0];
+    this.start_position = raw_array[1];
+    this.end_position = raw_array[2];
+    this.param_num = raw_array[3];
+    this.code = raw_array[4];
+    this.scope_info = raw_array[5];
+    this.outer_index = raw_array[6];
+    this.next_sibling_index = null;
+    this.raw_array = raw_array;
+  }
+
+  // A structure describing SharedFunctionInfo.
+  function SharedInfoWrapper(raw_array) {
+    this.function_name = raw_array[0];
+    this.start_position = raw_array[1];
+    this.end_position = raw_array[2];
+    this.info = raw_array[3];
+    this.raw_array = raw_array;
+  }
+
+
+  // Fully compiles source string as a script. Returns Array of
+  // FunctionCompileInfo -- a descriptions of all functions of the script.
+ // Elements of array are ordered by start positions of functions (from top + // to bottom) in the source. Fields outer_index and next_sibling_index help
+  // to navigate the nesting structure of functions.
+  //
+  // The script is used for compilation, because it produces code that
+  // needs to be linked with some particular script (for nested functions).
+  function DebugGatherCompileInfo(source) {
+    // Get function info, elements are partially sorted (it is a tree
+ // of nested functions serialized as parent followed by serialized children.
+    var raw_compile_info = %LiveEditGatherCompileInfo(script, source);
+
+    // Sort function infos by start position field.
+    var compile_info = new Array();
+    var old_index_map = new Array();
+    for (var i = 0; i < raw_compile_info.length; i++) {
+        compile_info.push(new FunctionCompileInfo(raw_compile_info[i]));
+        old_index_map.push(i);
+    }
+
+    for (var i = 0; i < compile_info.length; i++) {
+      var k = i;
+      for (var j = i + 1; j < compile_info.length; j++) {
+ if (compile_info[k].start_position > compile_info[j].start_position) {
+          k = j;
+        }
+      }
+      if (k != i) {
+        var temp_info = compile_info[k];
+        var temp_index = old_index_map[k];
+        compile_info[k] = compile_info[i];
+        old_index_map[k] = old_index_map[i];
+        compile_info[i] = temp_info;
+        old_index_map[i] = temp_index;
+      }
+    }
+
+    // After sorting update outer_inder field using old_index_map. Also
+    // set next_sibling_index field.
+    var current_index = 0;
+
+    // The recursive function, that goes over all children of a particular
+    // node (i.e. function info).
+    function ResetIndexes(new_parent_index, old_parent_index) {
+      var previous_sibling = -1;
+      while (current_index < compile_info.length &&
+          compile_info[current_index].outer_index == old_parent_index) {
+        var saved_index = current_index;
+        compile_info[saved_index].outer_index = new_parent_index;
+        if (previous_sibling != -1) {
+          compile_info[previous_sibling].next_sibling_index = saved_index;
+        }
+        previous_sibling = saved_index;
+        current_index++;
+        ResetIndexes(saved_index, old_index_map[saved_index]);
+      }
+      if (previous_sibling != -1) {
+        compile_info[previous_sibling].next_sibling_index = -1;
+      }
+    }
+
+    ResetIndexes(-1, -1);
+    Assert(current_index == compile_info.length);
+
+    return compile_info;
+  }
+
+ // Given a positions, finds a function that fully includes the entire change.
+  function FindChangedFunction(compile_info, offset, len) {
+    // First condition: function should start before the change region.
+    // Function #0 (whole-script function) always does, but we want
+    // one, that is later in this list.
+    var index = 0;
+    while (index + 1 < compile_info.length &&
+        compile_info[index + 1].start_position <= offset) {
+      index++;
+    }
+    // Now we are at the last function that begins before the change
+    // region. The function that covers entire change region is either
+    // this function or the enclosing one.
+    for (; compile_info[index].end_position < offset + len;
+        index = compile_info[index].outer_index) {
+      Assert(index != -1);
+    }
+    return index;
+  }
+
+  // Compares a function interface old and new version, whether it
+  // changed or not.
+  function CompareFunctionExpectations(function_info1, function_info2) {
+ // Check that function has the same number of parameters (there may exist
+    // an adapter, that won't survive function parameter number change).
+    if (function_info1.param_num != function_info2.param_num) {
+      return false;
+    }
+    var scope_info1 = function_info1.scope_info;
+    var scope_info2 = function_info2.scope_info;
+
+    if (!scope_info1) {
+      return !scope_info2;
+    }
+
+    if (scope_info1.length != scope_info2.length) {
+      return false;
+    }
+
+ // Check that outer scope structure is not changed. Otherwise the function
+    // will not properly work with existing scopes.
+    return scope_info1.toString() == scope_info2.toString();
+  }
+
+  // Variable forward declarations. Preprocessor "Minifier" needs them.
+  var old_compile_info;
+  var shared_infos;
+  // Finds SharedFunctionInfo that corresponds compile info with index
+  // in old version of the script.
+  function FindFunctionInfo(index) {
+    var old_info = old_compile_info[index];
+    for (var i = 0; i < shared_infos.length; i++) {
+      var info = shared_infos[i];
+      if (info.start_position == old_info.start_position &&
+          info.end_position == old_info.end_position) {
+        return info;
+      }
+    }
+  }
+
+  // Replaces function's Code.
+  function PatchCode(new_info, shared_info) {
+ %LiveEditReplaceFunctionCode(new_info.raw_array, shared_info.raw_array);
+
+    change_log.push( {function_patched: new_info.function_name} );
+  }
+
+  var change_len_old;
+  var change_len_new;
+  // Translate position in old version of script into position in new
+  // version of script.
+  function PosTranslator(old_pos) {
+    if (old_pos <= change_pos) {
+      return old_pos;
+    }
+    if (old_pos >= change_pos + change_len_old) {
+      return old_pos + change_len_new - change_len_old;
+    }
+    return -1;
+  }
+
+  var position_change_array;
+  var position_patch_report;
+  function PatchPositions(new_info, shared_info) {
+    if (!shared_info) {
+      // TODO: explain what is happening.
+      return;
+    }
+    %LiveEditPatchFunctionPositions(shared_info.raw_array,
+        position_change_array);
+    position_patch_report.push( { name: new_info.function_name } );
+  }
+
+  var link_to_old_script_report;
+  var old_script;
+  // Makes a function associated with another instance of a script (the
+  // one representing its old version). This way the function still
+  // may access its own text.
+  function LinkToOldScript(shared_info) {
+    %LiveEditRelinkFunctionToScript(shared_info.raw_array, old_script);
+
+    link_to_old_script_report.push( { name: shared_info.function_name } );
+  }
+
+
+
+  var old_source = script.source;
+  var change_len_old = change_len;
+  var change_len_new = new_str.length;
+
+  // Prepare new source string.
+  var new_source = old_source.substring(0, change_pos) +
+      new_str + old_source.substring(change_pos + change_len);
+
+  // Find all SharedFunctionInfo's that are compiled from this script.
+  var shared_raw_list = %LiveEditFindSharedFunctionInfosForScript(script);
+
+  // Gather compile information about old version of script.
+  var old_compile_info = DebugGatherCompileInfo(old_source);
+
+  // Gather compile information about new version of script.
+  var new_compile_info;
+  try {
+    new_compile_info = DebugGatherCompileInfo(new_source);
+  } catch (e) {
+    throw "Failed to compile new version of script: " + e;
+  }
+
+ // An index of a single function, that is going to have its code replaced.
+  var function_being_patched =
+      FindChangedFunction(old_compile_info, change_pos, change_len_old);
+  // In old and new script versions function with a change should have the
+  // same indexes.
+  var function_being_patched2 =
+      FindChangedFunction(new_compile_info, change_pos, change_len_new);
+  Assert(function_being_patched == function_being_patched2,
+         "inconsistent old/new compile info");
+
+  // Check that function being patched has the same expectations in a new
+  // version. Otherwise we cannot safely patch its behavior and should
+  // choose the outer function instead.
+ while (!CompareFunctionExpectations(old_compile_info[function_being_patched],
+      new_compile_info[function_being_patched])) {
+
+    Assert(old_compile_info[function_being_patched].outer_index ==
+        new_compile_info[function_being_patched].outer_index);
+    function_being_patched =
+        old_compile_info[function_being_patched].outer_index;
+    Assert(function_being_patched != -1);
+  }
+
+  // TODO: Need to check here that there are no activations of the function
+  // being patched on stack.
+
+  // Committing all changes.
+  var old_script_name = script.name + " (old)";
+
+  // Update the script text and create a new script representing an old
+  // version of the script.
+ var old_script = %LiveEditReplaceScript(script, new_source, old_script_name);
+
+  var shared_infos = new Array();
+
+  for (var i = 0; i < shared_raw_list.length; i++) {
+    shared_infos.push(new SharedInfoWrapper(shared_raw_list[i]));
+  }
+
+  PatchCode(new_compile_info[function_being_patched],
+      FindFunctionInfo(function_being_patched));
+
+  var position_patch_report = new Array();
+  change_log.push( {position_patched: position_patch_report} );
+
+  var position_change_array = [ change_pos,
+                                change_pos + change_len_old,
+                                change_pos + change_len_new ];
+
+  // Update positions of all outer functions (i.e. all functions, that
+  // are partially below the function being patched).
+  for (var i = new_compile_info[function_being_patched].outer_index;
+      i != -1;
+      i = new_compile_info[i].outer_index) {
+    PatchPositions(new_compile_info[i], FindFunctionInfo(i));
+  }
+
+  // Update positions of all functions that are fully below the function
+  // being patched.
+  var old_next_sibling =
+      old_compile_info[function_being_patched].next_sibling_index;
+  var new_next_sibling =
+      new_compile_info[function_being_patched].next_sibling_index;
+
+ // We simply go over the tail of both old and new lists. Their tails should
+  // have an identical structure.
+  if (old_next_sibling == -1) {
+    Assert(new_next_sibling == -1);
+  } else {
+    Assert(old_compile_info.length - old_next_sibling ==
+        new_compile_info.length - new_next_sibling);
+
+    for (var i = old_next_sibling, j = new_next_sibling;
+        i < old_compile_info.length; i++, j++) {
+      PatchPositions(new_compile_info[j], FindFunctionInfo(i));
+    }
+  }
+
+  var link_to_old_script_report = new Array();
+  change_log.push( { linked_to_old_script: link_to_old_script_report } );
+
+  // We need to link to old script all former nested functions.
+  for (var i = function_being_patched + 1; i < old_next_sibling; i++) {
+    LinkToOldScript(FindFunctionInfo(i), old_script);
+  }
+}
+
=======================================
--- /dev/null
+++ /branches/bleeding_edge/test/mjsunit/debug-liveedit-1.js Fri Mar 5 14:08:58 2010
@@ -0,0 +1,48 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-debug-as debug
+// Get the Debug object exposed from the debug context global object.
+
+Debug = debug.Debug
+
+eval("var something1 = 25; "
+     + " function ChooseAnimal() { return          'Cat';          } "
+     + " ChooseAnimal.Helper = function() { return 'Help!'; }");
+
+assertEquals("Cat", ChooseAnimal());
+
+var script = Debug.findScript(ChooseAnimal);
+
+var orig_animal = "Cat";
+var patch_pos = script.source.indexOf(orig_animal);
+var new_animal_patch = "Cap' + 'y' + 'bara";
+
+var change_log = new Array();
+Debug.LiveEditChangeScript(script, patch_pos, orig_animal.length, new_animal_patch, change_log);
+
+assertEquals("Capybara", ChooseAnimal());
=======================================
--- /dev/null
+++ /branches/bleeding_edge/test/mjsunit/debug-liveedit-2.js Fri Mar 5 14:08:58 2010
@@ -0,0 +1,70 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-debug-as debug
+// Get the Debug object exposed from the debug context global object.
+
+
+Debug = debug.Debug
+
+
+eval(
+    "function ChooseAnimal(p) {\n " +
+    "  if (p == 7) {\n" + // Use p
+    "    return;\n" +
+    "  }\n" +
+    "  return function Chooser() {\n" +
+    "    return 'Cat';\n" +
+    "  };\n" +
+    "}\n"
+);
+
+var old_closure = ChooseAnimal(19);
+
+assertEquals("Cat", old_closure());
+
+var script = Debug.findScript(ChooseAnimal);
+
+var orig_animal = "'Cat'";
+var patch_pos = script.source.indexOf(orig_animal);
+var new_animal_patch = "'Capybara' + p";
+
+// We patch innermost function "Chooser".
+// However, this does not actually patch existing "Chooser" instances,
+// because old value of parameter "p" was not saved.
+// Instead it patches ChooseAnimal.
+var change_log = new Array();
+Debug.LiveEditChangeScript(script, patch_pos, orig_animal.length, new_animal_patch, change_log);
+print("Change log: " + JSON.stringify(change_log) + "\n");
+
+var new_closure = ChooseAnimal(19);
+// New instance of closure is patched.
+assertEquals("Capybara19", new_closure());
+
+// Old instance of closure is not patched.
+assertEquals("Cat", old_closure());
+
=======================================
--- /branches/bleeding_edge/src/SConscript      Thu Feb 25 00:27:07 2010
+++ /branches/bleeding_edge/src/SConscript      Fri Mar  5 14:08:58 2010
@@ -249,6 +249,7 @@
 messages.js
 apinatives.js
 debug-delay.js
+liveedit-delay.js
 mirror-delay.js
 date-delay.js
 regexp-delay.js
=======================================
--- /branches/bleeding_edge/src/compiler.cc     Wed Feb 17 12:37:08 2010
+++ /branches/bleeding_edge/src/compiler.cc     Fri Mar  5 14:08:58 2010
@@ -115,6 +115,14 @@

   return CodeGenerator::MakeCode(info);
 }
+
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+Handle<Code> MakeCodeForLiveEdit(CompilationInfo* info) {
+  Handle<Context> context = Handle<Context>::null();
+  return MakeCode(context, info);
+}
+#endif


 static Handle<JSFunction> MakeFunction(bool is_global,
@@ -224,7 +232,7 @@

 #ifdef ENABLE_DEBUGGER_SUPPORT
   // Notify debugger
-  Debugger::OnAfterCompile(script, fun);
+  Debugger::OnAfterCompile(script, Debugger::NO_AFTER_COMPILE_FLAGS);
 #endif

   return fun;
=======================================
--- /branches/bleeding_edge/src/compiler.h      Fri Feb 19 06:52:39 2010
+++ /branches/bleeding_edge/src/compiler.h      Fri Mar  5 14:08:58 2010
@@ -276,6 +276,13 @@
 };


+#ifdef ENABLE_DEBUGGER_SUPPORT
+
+Handle<Code> MakeCodeForLiveEdit(CompilationInfo* info);
+
+#endif
+
+
 // During compilation we need a global list of handles to constants
 // for frame elements.  When the zone gets deleted, we make sure to
 // clear this list of handles as well.
=======================================
--- /branches/bleeding_edge/src/debug-delay.js  Fri Feb 19 06:33:08 2010
+++ /branches/bleeding_edge/src/debug-delay.js  Fri Mar  5 14:08:58 2010
@@ -1251,7 +1251,9 @@
       } else if (request.command == 'version') {
         this.versionRequest_(request, response);
       } else if (request.command == 'profile') {
-        this.profileRequest_(request, response);
+          this.profileRequest_(request, response);
+      } else if (request.command == 'changelive') {
+          this.changeLiveRequest_(request, response);
       } else {
throw new Error('Unknown command "' + request.command + '" in request');
       }
@@ -1954,6 +1956,43 @@
 };


+DebugCommandProcessor.prototype.changeLiveRequest_ = function(request, response) {
+  if (!Debug.LiveEditChangeScript) {
+    return response.failed('LiveEdit feature is not supported');
+  }
+  if (!request.arguments) {
+    return response.failed('Missing arguments');
+  }
+  var script_id = request.arguments.script_id;
+  var change_pos = parseInt(request.arguments.change_pos);
+  var change_len = parseInt(request.arguments.change_len);
+  var new_string = request.arguments.new_string;
+  if (!IS_STRING(new_string)) {
+    response.failed('Argument "new_string" is not a string value');
+    return;
+  }
+
+  var scripts = %DebugGetLoadedScripts();
+
+  var the_script = null;
+  for (var i = 0; i < scripts.length; i++) {
+    if (scripts[i].id == script_id) {
+      the_script = scripts[i];
+    }
+  }
+  if (!the_script) {
+    response.failed('Script not found');
+    return;
+  }
+
+  var change_log = new Array();
+ Debug.LiveEditChangeScript(the_script, change_pos, change_len, new_string,
+                             change_log);
+
+  response.body = {change_log: change_log};
+};
+
+
 // Check whether the previously processed command caused the VM to become
 // running.
 DebugCommandProcessor.prototype.isRunning = function() {
=======================================
--- /branches/bleeding_edge/src/debug.cc        Mon Mar  1 08:24:05 2010
+++ /branches/bleeding_edge/src/debug.cc        Fri Mar  5 14:08:58 2010
@@ -757,6 +757,12 @@
   bool caught_exception =
       !CompileDebuggerScript(Natives::GetIndex("mirror")) ||
       !CompileDebuggerScript(Natives::GetIndex("debug"));
+
+  if (FLAG_enable_liveedit) {
+    caught_exception = caught_exception ||
+        !CompileDebuggerScript(Natives::GetIndex("liveedit"));
+  }
+
   Debugger::set_compiling_natives(false);

   // Make sure we mark the debugger as not loading before we might
@@ -1963,7 +1969,8 @@


 // Handle debugger actions when a new script is compiled.
-void Debugger::OnAfterCompile(Handle<Script> script, Handle<JSFunction> fun) {
+void Debugger::OnAfterCompile(Handle<Script> script,
+                              AfterCompileFlags after_compile_flags) {
   HandleScope scope;

   // Add the newly compiled script to the script cache.
@@ -2010,7 +2017,7 @@
     return;
   }
   // Bail out based on state or if there is no listener for this event
-  if (in_debugger) return;
+ if (in_debugger && (after_compile_flags & SEND_WHEN_DEBUGGING) == 0) return;
   if (!Debugger::EventActive(v8::AfterCompile)) return;

   // Create the compile state object.
=======================================
--- /branches/bleeding_edge/src/debug.h Fri Jan 29 04:41:11 2010
+++ /branches/bleeding_edge/src/debug.h Fri Mar  5 14:08:58 2010
@@ -604,8 +604,13 @@
static void OnDebugBreak(Handle<Object> break_points_hit, bool auto_continue);
   static void OnException(Handle<Object> exception, bool uncaught);
   static void OnBeforeCompile(Handle<Script> script);
+
+  enum AfterCompileFlags {
+    NO_AFTER_COMPILE_FLAGS,
+    SEND_WHEN_DEBUGGING
+  };
   static void OnAfterCompile(Handle<Script> script,
-                           Handle<JSFunction> fun);
+                             AfterCompileFlags after_compile_flags);
   static void OnNewFunction(Handle<JSFunction> fun);
   static void OnScriptCollected(int id);
   static void ProcessDebugEvent(v8::DebugEvent event,
=======================================
--- /branches/bleeding_edge/src/flag-definitions.h      Fri Feb  5 00:46:41 2010
+++ /branches/bleeding_edge/src/flag-definitions.h      Fri Mar  5 14:08:58 2010
@@ -163,6 +163,7 @@
 DEFINE_bool(debugger_auto_break, true,
"automatically set the debug break flag when debugger commands are "
             "in the queue")
+DEFINE_bool(enable_liveedit, true, "enable liveedit experimental feature")

 // frames.cc
 DEFINE_int(max_stack_trace_source_length, 300,
=======================================
--- /branches/bleeding_edge/src/liveedit.cc     Wed Feb 24 11:59:09 2010
+++ /branches/bleeding_edge/src/liveedit.cc     Fri Mar  5 14:08:58 2010
@@ -39,50 +39,39 @@
 namespace internal {


-class FunctionInfoListener {
- public:
-  void FunctionStarted(FunctionLiteral* fun) {
-    // Implementation follows.
-  }
-
-  void FunctionDone() {
-    // Implementation follows.
-  }
-
-  void FunctionScope(Scope* scope) {
-    // Implementation follows.
-  }
-
-  void FunctionCode(Handle<Code> function_code) {
-    // Implementation follows.
-  }
-};
-
-static FunctionInfoListener* active_function_info_listener = NULL;
-
-LiveEditFunctionTracker::LiveEditFunctionTracker(FunctionLiteral* fun) {
-  if (active_function_info_listener != NULL) {
-    active_function_info_listener->FunctionStarted(fun);
+#ifdef ENABLE_DEBUGGER_SUPPORT
+
+static void CompileScriptForTracker(Handle<Script> script) {
+  const bool is_eval = false;
+  const bool is_global = true;
+  // TODO: support extensions.
+  Extension* extension = NULL;
+
+  PostponeInterruptsScope postpone;
+
+  // Only allow non-global compiles for eval.
+  ASSERT(is_eval || is_global);
+
+  // Build AST.
+  ScriptDataImpl* pre_data = NULL;
+  FunctionLiteral* lit = MakeAST(is_global, script, extension, pre_data);
+
+  // Check for parse errors.
+  if (lit == NULL) {
+    ASSERT(Top::has_pending_exception());
+    return;
+  }
+
+  // Compile the code.
+  CompilationInfo info(lit, script, is_eval);
+  Handle<Code> code = MakeCodeForLiveEdit(&info);
+
+  // Check for stack-overflow exceptions.
+  if (code.is_null()) {
+    Top::StackOverflow();
+    return;
   }
 }
-LiveEditFunctionTracker::~LiveEditFunctionTracker() {
-  if (active_function_info_listener != NULL) {
-    active_function_info_listener->FunctionDone();
-  }
-}
-void LiveEditFunctionTracker::RecordFunctionCode(Handle<Code> code) {
-  if (active_function_info_listener != NULL) {
-    active_function_info_listener->FunctionCode(code);
-  }
-}
-void LiveEditFunctionTracker::RecordFunctionScope(Scope* scope) {
-  if (active_function_info_listener != NULL) {
-    active_function_info_listener->FunctionScope(scope);
-  }
-}
-bool LiveEditFunctionTracker::IsActive() {
-  return active_function_info_listener != NULL;
-}

 // Unwraps JSValue object, returning its field "value"
 static Handle<Object> UnwrapJSValue(Handle<JSValue> jsValue) {
@@ -186,6 +175,8 @@
   static const int kScopeInfoOffset_ = 5;
   static const int kParentIndexOffset_ = 6;
   static const int kSize_ = 7;
+
+  friend class JSArrayBasedStruct<FunctionInfoWrapper>;
 };

 // Wraps SharedFunctionInfo along with some of its fields for passing it
@@ -219,8 +210,274 @@
   static const int kEndPositionOffset_ = 2;
   static const int kSharedInfoOffset_ = 3;
   static const int kSize_ = 4;
+
+  friend class JSArrayBasedStruct<SharedInfoWrapper>;
 };

+class FunctionInfoListener {
+ public:
+  FunctionInfoListener() {
+    current_parent_index_ = -1;
+    len_ = 0;
+    result_ = Factory::NewJSArray(10);
+  }
+
+  void FunctionStarted(FunctionLiteral* fun) {
+    HandleScope scope;
+    FunctionInfoWrapper info = FunctionInfoWrapper::Create();
+    info.SetInitialProperties(fun->name(), fun->start_position(),
+                              fun->end_position(), fun->num_parameters(),
+                              current_parent_index_);
+    current_parent_index_ = len_;
+    SetElement(result_, len_, info.GetJSArray());
+    len_++;
+  }
+
+  void FunctionDone() {
+    HandleScope scope;
+    FunctionInfoWrapper info =
+ FunctionInfoWrapper::cast(result_->GetElement(current_parent_index_));
+    current_parent_index_ = info.GetParentIndex();
+  }
+
+  void FunctionScope(Scope* scope) {
+    HandleScope handle_scope;
+
+    Handle<JSArray> scope_info_list = Factory::NewJSArray(10);
+    int scope_info_length = 0;
+
+    // Saves some description of scope. It stores name and indexes of
+    // variables in the whole scope chain. Null-named slots delimit
+    // scopes of this chain.
+    Scope* outer_scope = scope->outer_scope();
+    if (outer_scope == NULL) {
+      return;
+    }
+    do {
+      ZoneList<Variable*> list(10);
+      outer_scope->CollectUsedVariables(&list);
+      int j = 0;
+      for (int i = 0; i < list.length(); i++) {
+        Variable* var1 = list[i];
+        Slot* slot = var1->slot();
+        if (slot != NULL && slot->type() == Slot::CONTEXT) {
+          if (j != i) {
+            list[j] = var1;
+          }
+          j++;
+        }
+      }
+
+      // Sort it.
+      for (int k = 1; k < j; k++) {
+        int l = k;
+        for (int m = k + 1; m < j; m++) {
+          if (list[l]->slot()->index() > list[m]->slot()->index()) {
+            l = m;
+          }
+        }
+        list[k] = list[l];
+      }
+      for (int i = 0; i < j; i++) {
+        SetElement(scope_info_list, scope_info_length, list[i]->name());
+        scope_info_length++;
+        SetElement(scope_info_list, scope_info_length,
+                   Handle<Smi>(Smi::FromInt(list[i]->slot()->index())));
+        scope_info_length++;
+      }
+      SetElement(scope_info_list, scope_info_length,
+                 Handle<Object>(Heap::null_value()));
+      scope_info_length++;
+
+      outer_scope = outer_scope->outer_scope();
+    } while (outer_scope != NULL);
+
+    FunctionInfoWrapper info =
+ FunctionInfoWrapper::cast(result_->GetElement(current_parent_index_));
+    info.SetScopeInfo(scope_info_list);
+  }
+
+  void FunctionCode(Handle<Code> function_code) {
+    FunctionInfoWrapper info =
+ FunctionInfoWrapper::cast(result_->GetElement(current_parent_index_));
+    info.SetFunctionCode(function_code);
+  }
+
+  Handle<JSArray> GetResult() {
+    return result_;
+  }
+
+ private:
+  Handle<JSArray> result_;
+  int len_;
+  int current_parent_index_;
+};
+
+static FunctionInfoListener* active_function_info_listener = NULL;
+
+JSArray* LiveEdit::GatherCompileInfo(Handle<Script> script,
+                                     Handle<String> source) {
+  CompilationZoneScope zone_scope(DELETE_ON_EXIT);
+
+  FunctionInfoListener listener;
+  script->set_source(*source);
+  active_function_info_listener = &listener;
+  Handle<Object> original_source = Handle<Object>(script->source());
+  CompileScriptForTracker(script);
+  active_function_info_listener = NULL;
+  script->set_source(*original_source);
+
+  return *(listener.GetResult());
+}
+
+
+void LiveEdit::WrapSharedFunctionInfos(Handle<JSArray> array) {
+  HandleScope scope;
+  int len = Smi::cast(array->length())->value();
+  for (int i = 0; i < len; i++) {
+    Handle<SharedFunctionInfo> info(
+        SharedFunctionInfo::cast(array->GetElement(i)));
+    SharedInfoWrapper info_wrapper = SharedInfoWrapper::Create();
+    Handle<String> name_handle(String::cast(info->name()));
+    info_wrapper.SetProperties(name_handle, info->start_position(),
+                               info->end_position(), info);
+    array->SetElement(i, *(info_wrapper.GetJSArray()));
+  }
+}
+
+
+void LiveEdit::ReplaceFunctionCode(Handle<JSArray> new_compile_info_array,
+                                 Handle<JSArray> shared_info_array) {
+  HandleScope scope;
+
+  FunctionInfoWrapper compile_info_wrapper(new_compile_info_array);
+  SharedInfoWrapper shared_info_wrapper(shared_info_array);
+
+  Handle<SharedFunctionInfo> shared_info = shared_info_wrapper.GetInfo();
+
+  shared_info->set_code(*(compile_info_wrapper.GetFunctionCode()),
+                        UPDATE_WRITE_BARRIER);
+  shared_info->set_start_position(compile_info_wrapper.GetStartPosition());
+  shared_info->set_end_position(compile_info_wrapper.GetEndPosition());
+  // update breakpoints, original code, constructor stub
+}
+
+
+void LiveEdit::RelinkFunctionToScript(Handle<JSArray> shared_info_array,
+                                      Handle<Script> script_handle) {
+  SharedInfoWrapper shared_info_wrapper(shared_info_array);
+  Handle<SharedFunctionInfo> shared_info = shared_info_wrapper.GetInfo();
+
+  shared_info->set_script(*script_handle);
+}
+
+
+// For a script text change (defined as position_change_array), translates
+// position in unchanged text to position in changed text.
+// Text change is a set of non-overlapping regions in text, that have changed +// their contents and length. It is specified as array of groups of 3 numbers:
+// (change_begin, change_end, change_end_new_position).
+// Each group describes a change in text; groups are sorted by change_begin.
+// Only position in text beyond any changes may be successfully translated.
+// If a positions is inside some region that changed, result is currently
+// undefined.
+static int TranslatePosition(int original_position,
+                             Handle<JSArray> position_change_array) {
+  int position_diff = 0;
+  int array_len = Smi::cast(position_change_array->length())->value();
+  // TODO: binary search may be used here
+  for (int i = 0; i < array_len; i += 3) {
+    int chunk_start =
+        Smi::cast(position_change_array->GetElement(i))->value();
+    int chunk_end =
+        Smi::cast(position_change_array->GetElement(i + 1))->value();
+    int chunk_changed_end =
+        Smi::cast(position_change_array->GetElement(i + 2))->value();
+    position_diff = chunk_changed_end - chunk_end;
+    if (original_position < chunk_start) {
+      break;
+    }
+    // Position mustn't be inside a chunk.
+    ASSERT(original_position >= chunk_end);
+  }
+
+  return original_position + position_diff;
+}
+
+
+void LiveEdit::PatchFunctionPositions(Handle<JSArray> shared_info_array,
+ Handle<JSArray> position_change_array) {
+  SharedInfoWrapper shared_info_wrapper(shared_info_array);
+  Handle<SharedFunctionInfo> info = shared_info_wrapper.GetInfo();
+
+  info->set_start_position(TranslatePosition(info->start_position(),
+                                             position_change_array));
+  info->set_end_position(TranslatePosition(info->end_position(),
+                                           position_change_array));
+
+ // Also patch rinfos (both in working code and original code), breakpoints.
+}
+
+
+LiveEditFunctionTracker::LiveEditFunctionTracker(FunctionLiteral* fun) {
+  if (active_function_info_listener != NULL) {
+    active_function_info_listener->FunctionStarted(fun);
+  }
+}
+
+
+LiveEditFunctionTracker::~LiveEditFunctionTracker() {
+  if (active_function_info_listener != NULL) {
+    active_function_info_listener->FunctionDone();
+  }
+}
+
+
+void LiveEditFunctionTracker::RecordFunctionCode(Handle<Code> code) {
+  if (active_function_info_listener != NULL) {
+    active_function_info_listener->FunctionCode(code);
+  }
+}
+
+
+void LiveEditFunctionTracker::RecordFunctionScope(Scope* scope) {
+  if (active_function_info_listener != NULL) {
+    active_function_info_listener->FunctionScope(scope);
+  }
+}
+
+
+bool LiveEditFunctionTracker::IsActive() {
+  return active_function_info_listener != NULL;
+}
+
+
+#else  // ENABLE_DEBUGGER_SUPPORT
+
+// This ifdef-else-endif section provides working or stub implementation of
+// LiveEditFunctionTracker.
+LiveEditFunctionTracker::LiveEditFunctionTracker(FunctionLiteral* fun) {
+}
+
+
+LiveEditFunctionTracker::~LiveEditFunctionTracker() {
+}
+
+
+void LiveEditFunctionTracker::RecordFunctionCode(Handle<Code> code) {
+}
+
+
+void LiveEditFunctionTracker::RecordFunctionScope(Scope* scope) {
+}
+
+
+bool LiveEditFunctionTracker::IsActive() {
+  return false;
+}
+
+#endif  // ENABLE_DEBUGGER_SUPPORT
+


 } }  // namespace v8::internal
=======================================
--- /branches/bleeding_edge/src/liveedit.h      Wed Feb 17 12:57:05 2010
+++ /branches/bleeding_edge/src/liveedit.h      Fri Mar  5 14:08:58 2010
@@ -73,6 +73,28 @@
   static bool IsActive();
 };

+#ifdef ENABLE_DEBUGGER_SUPPORT
+
+class LiveEdit : AllStatic {
+ public:
+  static JSArray* GatherCompileInfo(Handle<Script> script,
+                                    Handle<String> source);
+
+  static void WrapSharedFunctionInfos(Handle<JSArray> array);
+
+  static void ReplaceFunctionCode(Handle<JSArray> new_compile_info_array,
+                                  Handle<JSArray> shared_info_array);
+
+  static void RelinkFunctionToScript(Handle<JSArray> shared_info_array,
+                                     Handle<Script> script_handle);
+
+  static void PatchFunctionPositions(Handle<JSArray> shared_info_array,
+ Handle<JSArray> position_change_array);
+};
+
+#endif  // ENABLE_DEBUGGER_SUPPORT
+
+
 } }  // namespace v8::internal

 #endif /* V*_LIVEEDIT_H_ */
=======================================
--- /branches/bleeding_edge/src/runtime.cc      Fri Mar  5 05:43:53 2010
+++ /branches/bleeding_edge/src/runtime.cc      Fri Mar  5 14:08:58 2010
@@ -38,6 +38,7 @@
 #include "debug.h"
 #include "execution.h"
 #include "jsregexp.h"
+#include "liveedit.h"
 #include "parser.h"
 #include "platform.h"
 #include "runtime.h"
@@ -8290,6 +8291,157 @@
   CONVERT_CHECKED(JSFunction, f, args[0]);
   return f->shared()->inferred_name();
 }
+
+
+static int FindSharedFunctionInfosForScript(Script* script,
+                                     FixedArray* buffer) {
+  AssertNoAllocation no_allocations;
+
+  int counter = 0;
+  int buffer_size = buffer->length();
+  HeapIterator iterator;
+ for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
+    ASSERT(obj != NULL);
+    if (!obj->IsSharedFunctionInfo()) {
+      continue;
+    }
+    SharedFunctionInfo* shared = SharedFunctionInfo::cast(obj);
+    if (shared->script() != script) {
+      continue;
+    }
+    if (counter < buffer_size) {
+      buffer->set(counter, shared);
+    }
+    counter++;
+  }
+  return counter;
+}
+
+// For a script finds all SharedFunctionInfo's in the heap that points
+// to this script. Returns JSArray of SharedFunctionInfo wrapped
+// in OpaqueReferences.
+static Object* Runtime_LiveEditFindSharedFunctionInfosForScript(
+    Arguments args) {
+  ASSERT(args.length() == 1);
+  HandleScope scope;
+  CONVERT_CHECKED(JSValue, script_value, args[0]);
+
+ Handle<Script> script = Handle<Script>(Script::cast(script_value->value()));
+
+  const int kBufferSize = 32;
+
+  Handle<FixedArray> array;
+  array = Factory::NewFixedArray(kBufferSize);
+  int number = FindSharedFunctionInfosForScript(*script, *array);
+  if (number > kBufferSize) {
+    array = Factory::NewFixedArray(number);
+    FindSharedFunctionInfosForScript(*script, *array);
+  }
+
+  Handle<JSArray> result = Factory::NewJSArrayWithElements(array);
+  result->set_length(Smi::FromInt(number));
+
+  LiveEdit::WrapSharedFunctionInfos(result);
+
+  return *result;
+}
+
+// For a script calculates compilation information about all its functions.
+// The script source is explicitly specified by the second argument.
+// The source of the actual script is not used, however it is important that +// all generated code keeps references to this particular instance of script.
+// Returns a JSArray of compilation infos. The array is ordered so that
+// each function with all its descendant is always stored in a continues range +// with the function itself going first. The root function is a script function.
+static Object* Runtime_LiveEditGatherCompileInfo(Arguments args) {
+  ASSERT(args.length() == 2);
+  HandleScope scope;
+  CONVERT_CHECKED(JSValue, script, args[0]);
+  CONVERT_ARG_CHECKED(String, source, 1);
+ Handle<Script> script_handle = Handle<Script>(Script::cast(script->value()));
+
+  JSArray* result =  LiveEdit::GatherCompileInfo(script_handle, source);
+
+  if (Top::has_pending_exception()) {
+    return Failure::Exception();
+  }
+
+  return result;
+}
+
+// Changes the source of the script to a new_source and creates a new
+// script representing the old version of the script source.
+static Object* Runtime_LiveEditReplaceScript(Arguments args) {
+  ASSERT(args.length() == 3);
+  HandleScope scope;
+  CONVERT_CHECKED(JSValue, original_script_value, args[0]);
+  CONVERT_ARG_CHECKED(String, new_source, 1);
+  CONVERT_ARG_CHECKED(String, old_script_name, 2);
+  Handle<Script> original_script =
+      Handle<Script>(Script::cast(original_script_value->value()));
+
+  Handle<String> original_source(String::cast(original_script->source()));
+
+  original_script->set_source(*new_source);
+  Handle<Script> old_script = Factory::NewScript(original_source);
+  old_script->set_name(*old_script_name);
+  old_script->set_line_offset(original_script->line_offset());
+  old_script->set_column_offset(original_script->column_offset());
+  old_script->set_data(original_script->data());
+  old_script->set_type(original_script->type());
+  old_script->set_context_data(original_script->context_data());
+  old_script->set_compilation_type(original_script->compilation_type());
+  old_script->set_eval_from_shared(original_script->eval_from_shared());
+  old_script->set_eval_from_instructions_offset(
+      original_script->eval_from_instructions_offset());
+
+
+  Debugger::OnAfterCompile(old_script, Debugger::SEND_WHEN_DEBUGGING);
+
+  return *(GetScriptWrapper(old_script));
+}
+
+// Replaces code of SharedFunctionInfo with a new one.
+static Object* Runtime_LiveEditReplaceFunctionCode(Arguments args) {
+  ASSERT(args.length() == 2);
+  HandleScope scope;
+  CONVERT_ARG_CHECKED(JSArray, new_compile_info, 0);
+  CONVERT_ARG_CHECKED(JSArray, shared_info, 1);
+
+  LiveEdit::ReplaceFunctionCode(new_compile_info, shared_info);
+
+  return Heap::undefined_value();
+}
+
+// Connects SharedFunctionInfo to another script.
+static Object* Runtime_LiveEditRelinkFunctionToScript(Arguments args) {
+  ASSERT(args.length() == 2);
+  HandleScope scope;
+  CONVERT_ARG_CHECKED(JSArray, shared_info_array, 0);
+  CONVERT_ARG_CHECKED(JSValue, script_value, 1);
+ Handle<Script> script = Handle<Script>(Script::cast(script_value->value()));
+
+  LiveEdit::RelinkFunctionToScript(shared_info_array, script);
+
+  return Heap::undefined_value();
+}
+
+// Updates positions of a shared function info (first parameter) according
+// to script source change. Text change is described in second parameter as
+// array of groups of 3 numbers:
+// (change_begin, change_end, change_end_new_position).
+// Each group describes a change in text; groups are sorted by change_begin.
+static Object* Runtime_LiveEditPatchFunctionPositions(Arguments args) {
+  ASSERT(args.length() == 2);
+  HandleScope scope;
+  CONVERT_ARG_CHECKED(JSArray, shared_array, 0);
+  CONVERT_ARG_CHECKED(JSArray, position_change_array, 1);
+
+  LiveEdit::PatchFunctionPositions(shared_array, position_change_array);
+
+  return Heap::undefined_value();
+}
+

 #endif  // ENABLE_DEBUGGER_SUPPORT

=======================================
--- /branches/bleeding_edge/src/runtime.h       Thu Mar  4 06:03:08 2010
+++ /branches/bleeding_edge/src/runtime.h       Fri Mar  5 14:08:58 2010
@@ -325,7 +325,13 @@
   F(SystemBreak, 0, 1) \
   F(DebugDisassembleFunction, 1, 1) \
   F(DebugDisassembleConstructor, 1, 1) \
-  F(FunctionGetInferredName, 1, 1)
+  F(FunctionGetInferredName, 1, 1) \
+  F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
+  F(LiveEditGatherCompileInfo, 2, 1) \
+  F(LiveEditReplaceScript, 3, 1) \
+  F(LiveEditReplaceFunctionCode, 2, 1) \
+  F(LiveEditRelinkFunctionToScript, 2, 1) \
+  F(LiveEditPatchFunctionPositions, 2, 1)
 #else
 #define RUNTIME_FUNCTION_LIST_DEBUGGER_SUPPORT(F)
 #endif
=======================================
--- /branches/bleeding_edge/test/mjsunit/debug-script.js Mon Mar 9 03:33:31 2009 +++ /branches/bleeding_edge/test/mjsunit/debug-script.js Fri Mar 5 14:08:58 2010
@@ -52,7 +52,7 @@
 }

 // This has to be updated if the number of native scripts change.
-assertEquals(12, named_native_count);
+assertEquals(13, named_native_count);
 // If no snapshot is used, only the 'gc' extension is loaded.
 // If snapshot is used, all extensions are cached in the snapshot.
 assertTrue(extension_count == 1 || extension_count == 5);
=======================================
--- /branches/bleeding_edge/tools/gyp/v8.gyp    Fri Feb 26 01:32:48 2010
+++ /branches/bleeding_edge/tools/gyp/v8.gyp    Fri Mar  5 14:08:58 2010
@@ -562,6 +562,7 @@
           '../../src/messages.js',
           '../../src/apinatives.js',
           '../../src/debug-delay.js',
+          '../../src/liveedit-delay.js',
           '../../src/mirror-delay.js',
           '../../src/date-delay.js',
           '../../src/json-delay.js',
=======================================
--- /branches/bleeding_edge/tools/visual_studio/js2c.cmd Fri Apr 24 01:13:09 2009 +++ /branches/bleeding_edge/tools/visual_studio/js2c.cmd Fri Mar 5 14:08:58 2010
@@ -3,4 +3,4 @@
 set TARGET_DIR=%2
 set PYTHON="..\..\..\third_party\python_24\python.exe"
 if not exist %PYTHON% set PYTHON=python.exe
-%PYTHON% ..\js2c.py %TARGET_DIR%\natives.cc %TARGET_DIR%\natives-empty.cc CORE %SOURCE_DIR%\macros.py %SOURCE_DIR%\runtime.js %SOURCE_DIR%\v8natives.js %SOURCE_DIR%\array.js %SOURCE_DIR%\string.js %SOURCE_DIR%\uri.js %SOURCE_DIR%\math.js %SOURCE_DIR%\messages.js %SOURCE_DIR%\apinatives.js %SOURCE_DIR%\debug-delay.js %SOURCE_DIR%\mirror-delay.js %SOURCE_DIR%\date-delay.js %SOURCE_DIR%\regexp-delay.js %SOURCE_DIR%\json-delay.js +%PYTHON% ..\js2c.py %TARGET_DIR%\natives.cc %TARGET_DIR%\natives-empty.cc CORE %SOURCE_DIR%\macros.py %SOURCE_DIR%\runtime.js %SOURCE_DIR%\v8natives.js %SOURCE_DIR%\array.js %SOURCE_DIR%\string.js %SOURCE_DIR%\uri.js %SOURCE_DIR%\math.js %SOURCE_DIR%\messages.js %SOURCE_DIR%\apinatives.js %SOURCE_DIR%\debug-delay.js %SOURCE_DIR%\liveedit-delay.js %SOURCE_DIR%\mirror-delay.js %SOURCE_DIR%\date-delay.js %SOURCE_DIR%\regexp-delay.js %SOURCE_DIR%\json-delay.js
=======================================
--- /branches/bleeding_edge/tools/visual_studio/v8.vcproj Wed Apr 29 06:11:48 2009 +++ /branches/bleeding_edge/tools/visual_studio/v8.vcproj Fri Mar 5 14:08:58 2010
@@ -141,6 +141,10 @@
                        <File
                                RelativePath="..\..\src\debug-delay.js"
                                >
+                       </File>
+                       <File
+                               RelativePath="..\..\src\liveedit-delay.js"
+                               >
                        </File>
                        <File
                                RelativePath="..\..\src\macros.py"
=======================================
--- /branches/bleeding_edge/tools/visual_studio/v8_arm.vcproj Wed Jan 27 08:18:58 2010 +++ /branches/bleeding_edge/tools/visual_studio/v8_arm.vcproj Fri Mar 5 14:08:58 2010
@@ -141,6 +141,10 @@
                        <File
                                RelativePath="..\..\src\debug-delay.js"
                                >
+                       </File>
+                       <File
+                               RelativePath="..\..\src\liveedit-delay.js"
+                               >
                        </File>
                        <File
                                RelativePath="..\..\src\macros.py"
=======================================
--- /branches/bleeding_edge/tools/visual_studio/v8_x64.vcproj Wed Aug 19 00:32:48 2009 +++ /branches/bleeding_edge/tools/visual_studio/v8_x64.vcproj Fri Mar 5 14:08:58 2010
@@ -141,6 +141,10 @@
                        <File
                                RelativePath="..\..\src\debug-delay.js"
                                >
+                       </File>
+                       <File
+                               RelativePath="..\..\src\liveedit-delay.js"
+                               >
                        </File>
                        <File
                                RelativePath="..\..\src\macros.py"

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