Merge bleeding edge up to 8774 into the GC branch.

include/v8.h

Index: include/v8.h
===================================================================
--- include/v8.h	(revision 8778)
+++ include/v8.h	(working copy)
@@ -80,9 +80,11 @@
 
 class Context;
 class String;
+class StringObject;
 class Value;
 class Utils;
 class Number;
+class NumberObject;
 class Object;
 class Array;
 class Int32;
@@ -90,6 +92,7 @@
 class External;
 class Primitive;
 class Boolean;
+class BooleanObject;
 class Integer;
 class Function;
 class Date;
@@ -929,6 +932,26 @@
   V8EXPORT bool IsDate() const;
 
   /**
+   * Returns true if this value is a Boolean object.
+   */
+  V8EXPORT bool IsBooleanObject() const;
+
+  /**
+   * Returns true if this value is a Number object.
+   */
+  V8EXPORT bool IsNumberObject() const;
+
+  /**
+   * Returns true if this value is a String object.
+   */
+  V8EXPORT bool IsStringObject() const;
+
+  /**
+   * Returns true if this value is a NativeError.
+   */
+  V8EXPORT bool IsNativeError() const;
+
+  /**
    * Returns true if this value is a RegExp.
    */
   V8EXPORT bool IsRegExp() const;
@@ -1435,6 +1458,13 @@
 
   V8EXPORT Local<Value> Get(uint32_t index);
 
+  /**
+   * Gets the property attributes of a property which can be None or
+   * any combination of ReadOnly, DontEnum and DontDelete. Returns
+   * None when the property doesn't exist.
+   */
+  V8EXPORT PropertyAttribute GetPropertyAttributes(Handle<Value> key);
+
   // TODO(1245389): Replace the type-specific versions of these
   // functions with generic ones that accept a Handle<Value> key.
   V8EXPORT bool Has(Handle<String> key);
@@ -1745,6 +1775,63 @@
 
 
 /**
+ * A Number object (ECMA-262, 4.3.21).
+ */
+class NumberObject : public Object {
+ public:
+  V8EXPORT static Local<Value> New(double value);
+
+  /**
+   * Returns the Number held by the object.
+   */
+  V8EXPORT double NumberValue() const;
+
+  static inline NumberObject* Cast(v8::Value* obj);
+
+ private:
+  V8EXPORT static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A Boolean object (ECMA-262, 4.3.15).
+ */
+class BooleanObject : public Object {
+ public:
+  V8EXPORT static Local<Value> New(bool value);
+
+  /**
+   * Returns the Boolean held by the object.
+   */
+  V8EXPORT bool BooleanValue() const;
+
+  static inline BooleanObject* Cast(v8::Value* obj);
+
+ private:
+  V8EXPORT static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * A String object (ECMA-262, 4.3.18).
+ */
+class StringObject : public Object {
+ public:
+  V8EXPORT static Local<Value> New(Handle<String> value);
+
+  /**
+   * Returns the String held by the object.
+   */
+  V8EXPORT Local<String> StringValue() const;
+
+  static inline StringObject* Cast(v8::Value* obj);
+
+ private:
+  V8EXPORT static void CheckCast(v8::Value* obj);
+};
+
+
+/**
  * An instance of the built-in RegExp constructor (ECMA-262, 15.10).
  */
 class RegExp : public Object {
@@ -2144,11 +2231,10 @@
   void SetHiddenPrototype(bool value);
 
   /**
-   * Sets the property attributes of the 'prototype' property of functions
-   * created from this FunctionTemplate. Can be any combination of ReadOnly,
-   * DontEnum and DontDelete.
+   * Sets the ReadOnly flag in the attributes of the 'prototype' property
+   * of functions created from this FunctionTemplate to true.
    */
-  void SetPrototypeAttributes(int attributes);
+  void ReadOnlyPrototype();
 
   /**
    * Returns true if the given object is an instance of this function
@@ -2721,7 +2807,14 @@
   char** raw_data;
 };
 
+
 /**
+ * EntropySource is used as a callback function when v8 needs a source
+ * of entropy.
+ */
+typedef bool (*EntropySource)(unsigned char* buffer, size_t length);
+
+/**
  * Container class for static utility functions.
  */
 class V8EXPORT V8 {
@@ -2946,6 +3039,12 @@
   static bool Initialize();
 
   /**
+   * Allows the host application to provide a callback which can be used
+   * as a source of entropy for random number generators.
+   */
+  static void SetEntropySource(EntropySource source);
+
+  /**
    * Adjusts the amount of registered external memory.  Used to give
    * V8 an indication of the amount of externally allocated memory
    * that is kept alive by JavaScript objects.  V8 uses this to decide
@@ -2984,31 +3083,6 @@
   static bool IsProfilerPaused();
 
   /**
-   * If logging is performed into a memory buffer (via --logfile=*), allows to
-   * retrieve previously written messages. This can be used for retrieving
-   * profiler log data in the application. This function is thread-safe.
-   *
-   * Caller provides a destination buffer that must exist during GetLogLines
-   * call. Only whole log lines are copied into the buffer.
-   *
-   * \param from_pos specified a point in a buffer to read from, 0 is the
-   *   beginning of a buffer. It is assumed that caller updates its current
-   *   position using returned size value from the previous call.
-   * \param dest_buf destination buffer for log data.
-   * \param max_size size of the destination buffer.
-   * \returns actual size of log data copied into buffer.
-   */
-  static int GetLogLines(int from_pos, char* dest_buf, int max_size);
-
-  /**
-   * The minimum allowed size for a log lines buffer.  If the size of
-   * the buffer given will not be enough to hold a line of the maximum
-   * length, an attempt to find a log line end in GetLogLines will
-   * fail, and an empty result will be returned.
-   */
-  static const int kMinimumSizeForLogLinesBuffer = 2048;
-
-  /**
    * Retrieve the V8 thread id of the calling thread.
    *
    * The thread id for a thread should only be retrieved after the V8
@@ -4035,6 +4109,30 @@
 }
 
 
+StringObject* StringObject::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<StringObject*>(value);
+}
+
+
+NumberObject* NumberObject::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<NumberObject*>(value);
+}
+
+
+BooleanObject* BooleanObject::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<BooleanObject*>(value);
+}
+
+
 RegExp* RegExp::Cast(v8::Value* value) {
 #ifdef V8_ENABLE_CHECKS
   CheckCast(value);