Minimize malloc heap allocation on process startup.

test/cctest/test-parsing.cc

 // Copyright 2011 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 116 matching lines @@
   full_stop.AddChar('i');
   CHECK_EQ(i::Token::IDENTIFIER, full_stop.token());
   full_stop.Fail();
   CHECK_EQ(i::Token::IDENTIFIER, full_stop.token());
   full_stop.AddChar('f');
   CHECK_EQ(i::Token::IDENTIFIER, full_stop.token());
 }
 
 
 TEST(ScanHTMLEndComments) {
+  v8::V8::Initialize();
+
   // Regression test. See:
   //    http://code.google.com/p/chromium/issues/detail?id=53548
   // Tests that --> is correctly interpreted as comment-to-end-of-line if there
   // is only whitespace before it on the line (with comments considered as
   // whitespace, even a multiline-comment containing a newline).
   // This was not the case if it occurred before the first real token
   // in the input.
   const char* tests[] = {
       // Before first real token.
       "--> is eol-comment\nvar y = 37;\n",
@@ skipping 109 matching lines @@
   CHECK_EQ(10, error_location.beg_pos);
   CHECK_EQ(11, error_location.end_pos);
   // Should not crash.
   const char* message = pre_impl->BuildMessage();
   i::Vector<const char*> args = pre_impl->BuildArgs();
   CHECK_GT(strlen(message), 0);
 }
 
 
 TEST(StandAlonePreParser) {
+  v8::V8::Initialize();
+
   int marker;
   i::Isolate::Current()->stack_guard()->SetStackLimit(
       reinterpret_cast<uintptr_t>(&marker) - 128 * 1024);
 
   const char* programs[] = {
       "{label: 42}",
       "var x = 42;",
       "function foo(x, y) { return x + y; }",
       "%ArgleBargle(glop);",
       "var x = new new Function('this.x = 42');",
@@ skipping 16 matching lines @@
                                                   true,
                                                   stack_limit);
     CHECK_EQ(v8::preparser::PreParser::kPreParseSuccess, result);
     i::ScriptDataImpl data(log.ExtractData());
     CHECK(!data.has_error());
   }
 }
 
 
 TEST(RegressChromium62639) {
+  v8::V8::Initialize();
+
   int marker;
   i::Isolate::Current()->stack_guard()->SetStackLimit(
       reinterpret_cast<uintptr_t>(&marker) - 128 * 1024);
 
   const char* program = "var x = 'something';\n"
                         "escape: function() {}";
   // Fails parsing expecting an identifier after "function".
   // Before fix, didn't check *ok after Expect(Token::Identifier, ok),
   // and then used the invalid currently scanned literal. This always
   // failed in debug mode, and sometimes crashed in release mode.
 
   i::Utf8ToUC16CharacterStream stream(reinterpret_cast<const i::byte*>(program),
                                       static_cast<unsigned>(strlen(program)));
   i::ScriptDataImpl* data =
       i::ParserApi::PreParse(&stream, NULL);
   CHECK(data->HasError());
   delete data;
 }
 
 
 TEST(Regress928) {
+  v8::V8::Initialize();
+
   // Preparsing didn't consider the catch clause of a try statement
   // as with-content, which made it assume that a function inside
   // the block could be lazily compiled, and an extra, unexpected,
   // entry was added to the data.
   int marker;
   i::Isolate::Current()->stack_guard()->SetStackLimit(
       reinterpret_cast<uintptr_t>(&marker) - 128 * 1024);
 
   const char* program =
       "try { } catch (e) { var foo = function () { /* first */ } }"
@@ skipping 20 matching lines @@
       second_function + static_cast<int>(strlen("function () "));
   CHECK_EQ('{', program[second_lbrace]);
   i::FunctionEntry entry2 = data->GetFunctionEntry(second_lbrace);
   CHECK(entry2.is_valid());
   CHECK_EQ('}', program[entry2.end_pos() - 1]);
   delete data;
 }
 
 
 TEST(PreParseOverflow) {
+  v8::V8::Initialize();
+
   int marker;
   i::Isolate::Current()->stack_guard()->SetStackLimit(
       reinterpret_cast<uintptr_t>(&marker) - 128 * 1024);
 
   size_t kProgramSize = 1024 * 1024;
   i::SmartPointer<char> program(
       reinterpret_cast<char*>(malloc(kProgramSize + 1)));
   memset(*program, '(', kProgramSize);
   program[kProgramSize] = '\0';
 
@@ skipping 230 matching lines @@
     i::Token::Value actual = scanner.Next();
     CHECK_EQ(i::Token::String(expected), i::Token::String(actual));
     if (scanner.location().end_pos == skip_pos) {
       scanner.SeekForward(skip_to);
     }
     i++;
   } while (expected_tokens[i] != i::Token::ILLEGAL);
 }
 
 TEST(StreamScanner) {
+  v8::V8::Initialize();
+
   const char* str1 = "{ foo get for : */ <- \n\n /*foo*/ bib";
   i::Utf8ToUC16CharacterStream stream1(reinterpret_cast<const i::byte*>(str1),
                                        static_cast<unsigned>(strlen(str1)));
   i::Token::Value expectations1[] = {
       i::Token::LBRACE,
       i::Token::IDENTIFIER,
       i::Token::IDENTIFIER,
       i::Token::FOR,
       i::Token::COLON,
       i::Token::MUL,
@@ skipping 60 matching lines @@
   CHECK(scanner.is_literal_ascii());
   i::Vector<const char> actual = scanner.literal_ascii_string();
   for (int i = 0; i < actual.length(); i++) {
     CHECK_NE('\0', expected[i]);
     CHECK_EQ(expected[i], actual[i]);
   }
 }
 
 
 TEST(RegExpScanning) {
+  v8::V8::Initialize();
+
   // RegExp token with added garbage at the end. The scanner should only
   // scan the RegExp until the terminating slash just before "flipperwald".
   TestScanRegExp("/b/flipperwald", "b");
   // Incomplete escape sequences doesn't hide the terminating slash.
   TestScanRegExp("/\\x/flipperwald", "\\x");
   TestScanRegExp("/\\u/flipperwald", "\\u");
   TestScanRegExp("/\\u1/flipperwald", "\\u1");
   TestScanRegExp("/\\u12/flipperwald", "\\u12");
   TestScanRegExp("/\\u123/flipperwald", "\\u123");
   TestScanRegExp("/\\c/flipperwald", "\\c");
@@ skipping 12 matching lines @@
   TestScanRegExp("/[\\u12]/flipperwald", "[\\u12]");
   TestScanRegExp("/[\\u123]/flipperwald", "[\\u123]");
   // Escaped ']'s wont end the character class.
   TestScanRegExp("/[\\]/]/flipperwald", "[\\]/]");
   // Escaped slashes are not terminating.
   TestScanRegExp("/\\//flipperwald", "\\/");
   // Starting with '=' works too.
   TestScanRegExp("/=/", "=");
   TestScanRegExp("/=?/", "=?");
 }