Remove trailing regexp from .js files.

src/liveedit-debugger.js

 // 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
@@ skipping 14 matching lines @@
 // (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-debugger.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. 
+// 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) {
 
   // So far the function works as namespace.
   var liveedit = Debug.LiveEditChangeScript;
   var Assert = liveedit.Assert;
 
   // 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). 
+  //
+  // 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 liveedit.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];
@@ skipping 20 matching lines @@
           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++;
@@ skipping 10 matching lines @@
 
   // 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 && 
+      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);
 
   var shared_infos = new Array();
 
   for (var i = 0; i < shared_raw_list.length; i++) {
     shared_infos.push(new liveedit.SharedInfoWrapper(shared_raw_list[i]));
   }
-  
+
   // 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 new liveedit.Failure("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 (!liveedit.CompareFunctionExpectations(
       old_compile_info[function_being_patched],
       new_compile_info[function_being_patched])) {
 
-    Assert(old_compile_info[function_being_patched].outer_index == 
+    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);
   }
-  
+
   // Check that function being patched is not currently on stack.
   liveedit.CheckStackActivations(
       [ FindFunctionInfo(function_being_patched) ], change_log );
-  
+
 
   // Committing all changes.
-  var old_script_name = liveedit.CreateNameForOldScript(script); 
+  var old_script_name = liveedit.CreateNameForOldScript(script);
 
   // 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);
 
   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.
@@ skipping 12 matching lines @@
 
     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.  
+  // 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);
   }
 }
 
 Debug.LiveEditChangeScript.Assert = function(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.
 Debug.LiveEditChangeScript.FunctionCompileInfo = function(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.
 Debug.LiveEditChangeScript.SharedInfoWrapper = function(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;
 }
 
 // Adds a suffix to script name to mark that it is old version.
 Debug.LiveEditChangeScript.CreateNameForOldScript = function(script) {
   // TODO(635): try better than this; support several changes.
   return script.name + " (old)";
 }
 
 // Compares a function interface old and new version, whether it
 // changed or not.
 Debug.LiveEditChangeScript.CompareFunctionExpectations =
     function(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(); 
+  return scope_info1.toString() == scope_info2.toString();
 }
 
 // For array of wrapped shared function infos checks that none of them
 // have activations on stack (of any thread). Throws a Failure exception
 // if this proves to be false.
 Debug.LiveEditChangeScript.CheckStackActivations = function(shared_wrapper_list,
                                                             change_log) {
   var liveedit = Debug.LiveEditChangeScript;
-      
+
   var shared_list = new Array();
   for (var i = 0; i < shared_wrapper_list.length; i++) {
     shared_list[i] = shared_wrapper_list[i].info;
   }
   var result = %LiveEditCheckStackActivations(shared_list);
   var problems = new Array();
   for (var i = 0; i < shared_list.length; i++) {
     if (result[i] == liveedit.FunctionPatchabilityStatus.FUNCTION_BLOCKED_ON_STACK) {
       var shared = shared_list[i];
       var description = {
           name: shared.function_name,
-          start_pos: shared.start_position, 
+          start_pos: shared.start_position,
           end_pos: shared.end_position
       };
       problems.push(description);
     }
   }
   if (problems.length > 0) {
     change_log.push( { functions_on_stack: problems } );
     throw new liveedit.Failure("Blocked by functions on stack");
   }
 }
 
 // A copy of the FunctionPatchabilityStatus enum from liveedit.h
 Debug.LiveEditChangeScript.FunctionPatchabilityStatus = {
     FUNCTION_AVAILABLE_FOR_PATCH: 0,
     FUNCTION_BLOCKED_ON_STACK: 1
 }
 
 
 // A logical failure in liveedit process. This means that change_log
 // is valid and consistent description of what happened.
 Debug.LiveEditChangeScript.Failure = function(message) {
   this.message = message;
 }
 
 Debug.LiveEditChangeScript.Failure.prototype.toString = function() {
-  return "LiveEdit Failure: " + this.message;     
+  return "LiveEdit Failure: " + this.message;
 }
 
 // A testing entry.
 Debug.LiveEditChangeScript.GetPcFromSourcePos = function(func, source_pos) {
   return %GetFunctionCodePositionFromSource(func, source_pos);
 }