Merge bleeding_edge r17376:17693.

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
@@ skipping 13 matching lines @@
 // 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 "string-stream.h"
 #include "scanner.h"
 
-#include "experimental-scanner.h"
-#include "lexer.h"
 
 using namespace v8::internal;
 
 enum Encoding {
   LATIN1,
   UTF8,
   UTF16
 };
 
 
 const byte* ReadFile(const char* name, Isolate* isolate, int* size) {
   FILE* file = fopen(name, "rb");
   *size = 0;
   if (file == NULL) return NULL;
 
   fseek(file, 0, SEEK_END);
   *size = ftell(file);
   rewind(file);
 
   byte* chars = new byte[*size + 1];
   chars[*size] = 0;
   for (int i = 0; i < *size;) {
     int read = static_cast<int>(fread(&chars[i], 1, *size - i, file));
     i += read;
   }
   fclose(file);
   return chars;
 }
 
+
 class BaselineScanner {
  public:
   BaselineScanner(const char* fname,
                   Isolate* isolate,
                   Encoding encoding,
                   ElapsedTimer* timer)
       : stream_(NULL) {
     int length = 0;
     source_ = ReadFile(fname, isolate, &length);
     unicode_cache_ = new UnicodeCache();
@@ skipping 78 matching lines @@
   do {
     token = scanner.Next(&beg, &end);
     if (dump_tokens) {
       tokens->push_back(TokenWithLocation(token, beg, end));
     }
   } while (token != Token::EOS);
   return timer.Elapsed();
 }
 
 
-TimeDelta RunExperimentalScanner(const char* fname,
-                                 Isolate* isolate,
-                                 Encoding encoding,
-                                 bool dump_tokens,
-                                 std::vector<TokenWithLocation>* tokens) {
-  ElapsedTimer timer;
-  timer.Start();
-  ExperimentalScanner scanner(fname, true, isolate);
-  Token::Value token;
-  do {
-    token = scanner.Next();
-    ExperimentalScanner::Location location = scanner.location();
-    if (dump_tokens) {
-      tokens->push_back(
-          TokenWithLocation(token, location.beg_pos, location.end_pos));
-    }
-  } while (token != Token::EOS);
-  return timer.Elapsed();
-}
-
-
 void PrintTokens(const char* name,
                  const std::vector<TokenWithLocation>& tokens) {
   printf("No of tokens: %d\n",
          static_cast<int>(tokens.size()));
   printf("%s:\n", name);
   for (size_t i = 0; i < tokens.size(); ++i) {
     tokens[i].Print("=>");
   }
 }
 
 
-std::pair<TimeDelta, TimeDelta> ProcessFile(
+TimeDelta ProcessFile(
     const char* fname,
     Encoding encoding,
     Isolate* isolate,
-    bool run_baseline,
-    bool run_experimental,
-    bool print_tokens,
-    bool check_tokens) {
+    bool print_tokens) {
   if (print_tokens) {
     printf("Processing file %s\n", fname);
   }
   HandleScope handle_scope(isolate);
-  std::vector<TokenWithLocation> baseline_tokens, experimental_tokens;
-  TimeDelta baseline_time, experimental_time;
-  if (run_baseline) {
-    baseline_time = RunBaselineScanner(
-        fname, isolate, encoding, print_tokens || check_tokens,
-        &baseline_tokens);
-  }
-  if (run_experimental) {
-    experimental_time = RunExperimentalScanner(
-        fname, isolate, encoding, print_tokens || check_tokens,
-        &experimental_tokens);
-  }
-  if (print_tokens && !run_experimental) {
+  std::vector<TokenWithLocation> baseline_tokens;
+  TimeDelta baseline_time;
+  baseline_time = RunBaselineScanner(
+      fname, isolate, encoding, print_tokens,
+      &baseline_tokens);
+  if (print_tokens) {
     PrintTokens("Baseline", baseline_tokens);
   }
-  if (print_tokens && !run_baseline) {
-    PrintTokens("Experimental", experimental_tokens);
-  }
-  if ((print_tokens || check_tokens) && run_baseline && run_experimental) {
-    if (print_tokens) {
-      printf("No of tokens in Baseline:     %d\n",
-             static_cast<int>(baseline_tokens.size()));
-      printf("No of tokens in Experimental: %d\n",
-             static_cast<int>(experimental_tokens.size()));
-      printf("Baseline and Experimental:\n");
-    }
-    for (size_t i = 0; i < experimental_tokens.size(); ++i) {
-      if (print_tokens) experimental_tokens[i].Print("=>");
-      if (experimental_tokens[i] != baseline_tokens[i]) {
-        printf("MISMATCH:\n");
-        baseline_tokens[i].Print("Expected: ");
-        experimental_tokens[i].Print("Actual:   ");
-        exit(1);
-      }
-    }
-  }
-  return std::make_pair(baseline_time, experimental_time);
+  return baseline_time;
 }
 
 
 int main(int argc, char* argv[]) {
   v8::V8::InitializeICU();
   v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
   Encoding encoding = LATIN1;
   bool print_tokens = false;
-  bool run_baseline = true;
-  bool run_experimental = true;
-  bool check_tokens = true;
   std::vector<std::string> fnames;
   std::string benchmark;
   for (int i = 0; i < argc; ++i) {
     if (strcmp(argv[i], "--latin1") == 0) {
       encoding = LATIN1;
     } else if (strcmp(argv[i], "--utf8") == 0) {
       encoding = UTF8;
     } else if (strcmp(argv[i], "--utf16") == 0) {
       encoding = UTF16;
     } else if (strcmp(argv[i], "--print-tokens") == 0) {
       print_tokens = true;
-    } else if (strcmp(argv[i], "--no-baseline") == 0) {
-      run_baseline = false;
-    } else if (strcmp(argv[i], "--no-experimental") == 0) {
-      run_experimental = false;
-    } else if (strcmp(argv[i], "--no-check") == 0) {
-      check_tokens = false;
     } else if (strncmp(argv[i], "--benchmark=", 12) == 0) {
       benchmark = std::string(argv[i]).substr(12);
     } else if (i > 0 && argv[i][0] != '-') {
       fnames.push_back(std::string(argv[i]));
     }
   }
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   {
     v8::HandleScope handle_scope(isolate);
     v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
     v8::Local<v8::Context> context = v8::Context::New(isolate, NULL, global);
     ASSERT(!context.IsEmpty());
     {
       v8::Context::Scope scope(context);
       Isolate* isolate = Isolate::Current();
-      double baseline_total = 0, experimental_total = 0;
+      double baseline_total = 0;
       for (size_t i = 0; i < fnames.size(); i++) {
-        std::pair<TimeDelta, TimeDelta> times;
-        check_tokens = check_tokens && run_baseline && run_experimental;
-        times = ProcessFile(fnames[i].c_str(), encoding, isolate, run_baseline,
-                            run_experimental, print_tokens, check_tokens);
-        baseline_total += times.first.InMillisecondsF();
-        experimental_total += times.second.InMillisecondsF();
+        TimeDelta time;
+        time = ProcessFile(fnames[i].c_str(), encoding, isolate, print_tokens);
+        baseline_total += time.InMillisecondsF();
       }
-      if (run_baseline) {
-        printf("Baseline%s(RunTime): %.f ms\n", benchmark.c_str(),
-               baseline_total);
-      }
-      if (run_experimental) {
-        if (benchmark.empty()) benchmark = "Experimental";
-        printf("%s(RunTime): %.f ms\n", benchmark.c_str(),
-               experimental_total);
-      }
+      if (benchmark.empty()) benchmark = "Baseline";
+      printf("%s(RunTime): %.f ms\n", benchmark.c_str(), baseline_total);
     }
   }
   v8::V8::Dispose();
   return 0;
 }