Preliminary promise implementation.

src/bootstrapper.cc

 // 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:
 //
 //     * 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 2005 matching lines @@
   }
 
 #ifdef VERIFY_HEAP
   builtins->Verify();
 #endif
 
   return true;
 }
 
 
+#define INSTALL_EXPERIMENTAL_NATIVE(i, flag, file)                \
+  if (FLAG_harmony_##flag &&                                      \
+      strcmp(ExperimentalNatives::GetScriptName(i).start(),       \
+          "native " file) == 0) {                                 \
+    if (!CompileExperimentalBuiltin(isolate(), i)) return false;  \
+  }
+
+
 bool Genesis::InstallExperimentalNatives() {
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount();
        i++) {
-    if (FLAG_harmony_symbols &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native symbol.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_proxies &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native proxy.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_collections &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native collection.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_observation &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native object-observe.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_generators &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native generator.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_iteration &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native array-iterator.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_strings &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native harmony-string.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_arrays &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native harmony-array.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
-    if (FLAG_harmony_maths &&
-        strcmp(ExperimentalNatives::GetScriptName(i).start(),
-               "native harmony-math.js") == 0) {
-      if (!CompileExperimentalBuiltin(isolate(), i)) return false;
-    }
+    INSTALL_EXPERIMENTAL_NATIVE(i, symbols, "symbol.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, proxies, "proxy.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, collections, "collection.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, observation, "object-observe.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, promises, "promise.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, generators, "generator.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, iteration, "array-iterator.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, strings, "harmony-string.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, arrays, "harmony-array.js")
+    INSTALL_EXPERIMENTAL_NATIVE(i, maths, "harmony-math.js")
   }
 
   InstallExperimentalNativeFunctions();
 
   return true;
 }
 
 
 static Handle<JSObject> ResolveBuiltinIdHolder(
     Handle<Context> native_context,
@@ skipping 584 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal