Introduces a light version of D8 that links against shared library.

src/d8.h

Index: src/d8.h
diff --git a/src/d8.h b/src/d8.h
index 7f0272710b4b160f9b1a5a90ea4f4b5e8309cc65..e121fb38d1c9fe88e2e7386a6c73040dc8750a22 100644
--- a/src/d8.h
+++ b/src/d8.h
@@ -28,16 +28,23 @@
 #ifndef V8_D8_H_
 #define V8_D8_H_
 
-#include "allocation.h"
+
+#ifndef D8_LIGHT
 #include "v8.h"
+#include "allocation.h"
 #include "hashmap.h"
+#else
+#include "../include/v8.h"
+#endif // D8_LIGHT
 
 namespace v8 {
 
-
+#ifndef D8_LIGHT
 namespace i = v8::internal;
+#endif // D8_LIGHT
 
 
+#ifndef D8_LIGHT
 // A single counter in a counter collection.
 class Counter {
  public:
@@ -110,17 +117,20 @@ class CounterMap {
   static bool Match(void* key1, void* key2);
   i::HashMap hash_map_;
 };
+#endif // D8_LIGHT
 
 
 class SourceGroup {
  public:
-  SourceGroup()
-      : next_semaphore_(v8::internal::OS::CreateSemaphore(0)),
-        done_semaphore_(v8::internal::OS::CreateSemaphore(0)),
-        thread_(NULL),
-        argv_(NULL),
-        begin_offset_(0),
-        end_offset_(0) { }
+  SourceGroup() :
+#ifndef D8_LIGHT
+      next_semaphore_(v8::internal::OS::CreateSemaphore(0)),
+      done_semaphore_(v8::internal::OS::CreateSemaphore(0)),
+      thread_(NULL),
+#endif // D8_LIGHT
+      argv_(NULL),
+      begin_offset_(0),
+      end_offset_(0) { }
 
   void Begin(char** argv, int offset) {
     argv_ = const_cast<const char**>(argv);
@@ -131,6 +141,7 @@ class SourceGroup {
 
   void Execute();
 
+#ifndef D8_LIGHT
   void StartExecuteInThread();
   void WaitForThread();
 
@@ -154,6 +165,7 @@ class SourceGroup {
   i::Semaphore* next_semaphore_;
   i::Semaphore* done_semaphore_;
   i::Thread* thread_;
+#endif // D8_LIGHT
 
   void ExitShell(int exit_code);
   Handle<String> ReadFile(const char* name);
@@ -166,34 +178,42 @@ class SourceGroup {
 
 class ShellOptions {
  public:
-  ShellOptions()
-     : script_executed(false),
-       last_run(true),
-       stress_opt(false),
-       stress_deopt(false),
-       interactive_shell(false),
-       test_shell(false),
-       use_preemption(true),
-       preemption_interval(10),
-       num_isolates(1),
-       isolate_sources(NULL),
-       parallel_files(NULL) { }
-
+  ShellOptions() :
+#ifndef D8_LIGHT
+     use_preemption(true),
+     preemption_interval(10),
+     parallel_files(NULL),
+#endif // D8_LIGHT
+     script_executed(false),
+     last_run(true),
+     stress_opt(false),
+     stress_deopt(false),
+     interactive_shell(false),
+     test_shell(false),
+     num_isolates(1),
+     isolate_sources(NULL) { }
+
+#ifndef D8_LIGHT
+  bool use_preemption;
+  int preemption_interval;
+  i::List< i::Vector<const char> >* parallel_files;
+#endif // D8_LIGHT
   bool script_executed;
   bool last_run;
   bool stress_opt;
   bool stress_deopt;
   bool interactive_shell;
   bool test_shell;
-  bool use_preemption;
-  int preemption_interval;
   int num_isolates;
   SourceGroup* isolate_sources;
-  i::List< i::Vector<const char> >* parallel_files;
 };
 
 
-class Shell: public i::AllStatic {
+class Shell
+#ifndef D8_LIGHT
+: public i::AllStatic
+#endif // D8_LIGHT
+{
  public:
   static bool ExecuteString(Handle<String> source,
                             Handle<Value> name,
@@ -201,6 +221,14 @@ class Shell: public i::AllStatic {
                             bool report_exceptions);
   static const char* ToCString(const v8::String::Utf8Value& value);
   static void ReportException(TryCatch* try_catch);
+  static Handle<String> ReadFile(const char* name);
+  static Persistent<Context> CreateEvaluationContext();
+  static int RunMain(int argc, char* argv[]);
+  static int Main(int argc, char* argv[]);
+
+#ifndef D8_LIGHT
+  static Handle<Array> GetCompletions(Handle<String> text,
+                                      Handle<String> full);
   static void OnExit();
   static int* LookupCounter(const char* name);
   static void* CreateHistogram(const char* name,
@@ -209,18 +237,8 @@ class Shell: public i::AllStatic {
                                size_t buckets);
   static void AddHistogramSample(void* histogram, int sample);
   static void MapCounters(const char* name);
-  static Handle<String> ReadFile(const char* name);
-  static void Initialize();
-  static Persistent<Context> CreateEvaluationContext();
-  static void InstallUtilityScript();
-  static void RunShell();
-  static bool SetOptions(int argc, char* argv[]);
-  static int RunScript(char* filename);
-  static int RunMain(int argc, char* argv[]);
-  static int Main(int argc, char* argv[]);
-  static Handle<ObjectTemplate> CreateGlobalTemplate();
-  static Handle<Array> GetCompletions(Handle<String> text,
-                                      Handle<String> full);
+#endif // D8_LIGHT
+
 #ifdef ENABLE_DEBUGGER_SUPPORT
   static Handle<Object> DebugMessageDetails(Handle<String> message);
   static Handle<Value> DebugCommandToJSONRequest(Handle<String> command);
@@ -283,15 +301,16 @@ class Shell: public i::AllStatic {
   static Handle<Value> RemoveDirectory(const Arguments& args);
 
   static void AddOSMethods(Handle<ObjectTemplate> os_template);
-
+#ifndef D8_LIGHT
   static const char* kHistoryFileName;
+#endif // D8_LIGHT
   static const char* kPrompt;
-
   static ShellOptions options;
 
  private:
-  static Persistent<Context> utility_context_;
   static Persistent<Context> evaluation_context_;
+#ifndef D8_LIGHT
+  static Persistent<Context> utility_context_;
   static CounterMap* counter_map_;
   // We statically allocate a set of local counters to be used if we
   // don't want to store the stats in a memory-mapped file
@@ -299,7 +318,14 @@ class Shell: public i::AllStatic {
   static CounterCollection* counters_;
   static i::OS::MemoryMappedFile* counters_file_;
   static i::Mutex* context_mutex_;
+
   static Counter* GetCounter(const char* name, bool is_histogram);
+  static void InstallUtilityScript();
+#endif // D8_LIGHT
+  static void Initialize();
+  static void RunShell();
+  static bool SetOptions(int argc, char* argv[]);
+  static Handle<ObjectTemplate> CreateGlobalTemplate();
   static Handle<Value> CreateExternalArray(const Arguments& args,
                                            ExternalArrayType type,
                                            size_t element_size);
@@ -307,6 +333,7 @@ class Shell: public i::AllStatic {
 };
 
 
+#ifndef D8_LIGHT
 class LineEditor {
  public:
   enum Type { DUMB = 0, READLINE = 1 };
@@ -326,6 +353,7 @@ class LineEditor {
   LineEditor* next_;
   static LineEditor* first_;
 };
+#endif // D8_LIGHT
 
 
 }  // namespace v8