Add support for running the profiler output processing scripts with node.

tools/tickprocessor.js

 // Copyright 2012 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:
 //
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 // 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.
 
+// Node imports
+if (typeof module !== 'undefined' && module.exports) {
+  Profile = require('./profile');
+  LogReader = require('./logreader');
+  ProfileView = require('./profile_view').ProfileView;
+  ViewBuilder = require('./profile_view').ViewBuilder;
+}
+
+// Node polyfill
+var os = os || {
+  system: function(name, args) {
+    return require('child_process').execSync(name + ' ' + args.join(' ')).toString();

[Jakob Kummerow, 2015/06/19 09:43:53]

80-col

[noordhuis, 2015/06/19 10:43:07]

I suggest using `execFileSync(name, args, { encoding: 'utf8'})` here.

[mattloring, 2015/06/19 17:29:03]

Done.

[mattloring, 2015/06/19 17:29:03]

Done.

+  }
+};
+
+var print = print || console.log.bind(console);
+
+var read = read || function(fileName) {
+  return require('fs').readFileSync(fileName, 'utf8');
+};
+
+// End Node polyfill
 
 function inherits(childCtor, parentCtor) {
   childCtor.prototype.__proto__ = parentCtor.prototype;
 };
 
-

[Jakob Kummerow, 2015/06/19 09:43:53]

keep this line

[mattloring, 2015/06/19 17:29:03]

Done.

 function V8Profile(separateIc) {
   Profile.call(this);
   if (!separateIc) {
     this.skipThisFunction = function(name) { return V8Profile.IC_RE.test(name); };
   }
 };
 inherits(V8Profile, Profile);
 
 
 V8Profile.IC_RE =
@@ skipping 252 matching lines @@
 };
 
 
 TickProcessor.prototype.isJsCode = function(name) {
   return name !== "UNKNOWN" && !(name in this.codeTypes_);
 };
 
 
 TickProcessor.prototype.processLogFile = function(fileName) {
   this.lastLogFileName_ = fileName;
-  var line;
-  while (line = readline()) {
-    this.processLogLine(line);
-  }
+  var contents = readFile(fileName);
+  this.processLogChunk(contents);

[Jakob Kummerow, 2015/06/19 09:43:53]

Nope, this is not equivalent. processLogLine has extra logic in it.

[mattloring, 2015/06/19 17:29:03]

Done.

 };
 
 
 TickProcessor.prototype.processLogFileInTest = function(fileName) {
    // Hack file name to avoid dealing with platform specifics.
   this.lastLogFileName_ = 'v8.log';
   var contents = readFile(fileName);
   this.processLogChunk(contents);
 };
 
@@ skipping 641 matching lines @@
     for (var synArg in this.argsDispatch_) {
       if (arg !== synArg && dispatch === this.argsDispatch_[synArg]) {
         synonyms.push(synArg);
         delete this.argsDispatch_[synArg];
       }
     }
     print('  ' + padRight(synonyms.join(', '), 20) + " " + dispatch[2]);
   }
   quit(2);
 };
+
+// Node exports
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports.UnixCppEntriesProvider = UnixCppEntriesProvider;
+  module.exports.WindowsCppEntriesProvider = WindowsCppEntriesProvider;
+  module.exports.MacCppEntriesProvider = MacCppEntriesProvider;
+  module.exports.ArgumentsProcessor = ArgumentsProcessor;
+  module.exports.TickProcessor = TickProcessor;
+  module.exports.SnapshotLogProcessor = SnapshotLogProcessor;
+}