Add parser-shell.

tools/lexer-shell.cc

 // Copyright 2013 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.
 
 #include <assert.h>
-#include <fcntl.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string>
 #include <vector>
 #include "v8.h"
 
 #include "api.h"
-#include "ast.h"
-#include "char-predicates-inl.h"
 #include "messages.h"
 #include "platform.h"
 #include "runtime.h"
 #include "scanner-character-streams.h"
 #include "scopeinfo.h"
+#include "shell-utils.h"
 #include "string-stream.h"
 #include "scanner.h"
 
 
 using namespace v8::internal;
 
-enum Encoding {
-  LATIN1,
-  UTF8,
-  UTF16
-};
-
-
-const byte* ReadFile(const char* name, Isolate* isolate,
-                     int* size, int repeat) {
-  FILE* file = fopen(name, "rb");
-  *size = 0;
-  if (file == NULL) return NULL;
-
-  fseek(file, 0, SEEK_END);
-  int file_size = ftell(file);
-  rewind(file);
-
-  *size = file_size * repeat;
-
-  byte* chars = new byte[*size + 1];
-  for (int i = 0; i < file_size;) {
-    int read = static_cast<int>(fread(&chars[i], 1, file_size - i, file));
-    i += read;
-  }
-  fclose(file);
-
-  for (int i = file_size; i < *size; i++) {
-    chars[i] = chars[i - file_size];
-  }
-  chars[*size] = 0;
-
-  return chars;
-}
-
 
 class BaselineScanner {
  public:
   BaselineScanner(const char* fname,
                   Isolate* isolate,
                   Encoding encoding,
                   ElapsedTimer* timer,
                   int repeat)
       : stream_(NULL) {
     int length = 0;
-    source_ = ReadFile(fname, isolate, &length, repeat);
+    source_ = ReadFileAndRepeat(fname, &length, repeat);
     unicode_cache_ = new UnicodeCache();
     scanner_ = new Scanner(unicode_cache_);
     switch (encoding) {
       case UTF8:
         stream_ = new Utf8ToUtf16CharacterStream(source_, length);
         break;
       case UTF16: {
         Handle<String> result = isolate->factory()->NewStringFromTwoByte(
             Vector<const uint16_t>(
                 reinterpret_cast<const uint16_t*>(source_),
@@ skipping 152 matching lines @@
                            repeat);
         baseline_total += time.InMillisecondsF();
       }
       if (benchmark.empty()) benchmark = "Baseline";
       printf("%s(RunTime): %.f ms\n", benchmark.c_str(), baseline_total);
     }
   }
   v8::V8::Dispose();
   return 0;
 }