Expose APIs for detecting boxed primitives, native errors and Math.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index fb10c71576da0a92963b4decfe4dde60067a34fb..587455a73a1f5271d774b3feb8d874ebe6a60c91 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -80,9 +80,11 @@ namespace v8 {
 
 class Context;
 class String;
+class BoxedString;
 class Value;
 class Utils;
 class Number;
+class BoxedNumber;
 class Object;
 class Array;
 class Int32;
@@ -90,6 +92,7 @@ class Uint32;
 class External;
 class Primitive;
 class Boolean;
+class BoxedBoolean;
 class Integer;
 class Function;
 class Date;
@@ -929,6 +932,31 @@ class Value : public Data {
   V8EXPORT bool IsDate() const;
 
   /**
+   * Returns true if this value is a boxed Boolean.
+   */
+  V8EXPORT bool IsBoxedBoolean() const;

[Vyacheslav Egorov (Chromium), 2011/07/12 20:38:12]

Lets call them IsXXXObject instead of IsBoxedXXX.

[zarko, 2011/07/12 21:42:06]

Done.

+
+  /**
+   * Returns true if this value is a boxed Number.
+   */
+  V8EXPORT bool IsBoxedNumber() const;
+
+  /**
+   * Returns true if this value is a boxed String.
+   */
+  V8EXPORT bool IsBoxedString() const;
+
+  /**
+   * Returns true if this value is a NativeError.
+   */
+  V8EXPORT bool IsNativeError() const;
+
+  /**
+   * Returns true if this value is the native Math object.
+   */
+  V8EXPORT bool IsMath() const;
+
+  /**
    * Returns true if this value is a RegExp.
    */
   V8EXPORT bool IsRegExp() const;
@@ -1745,6 +1773,65 @@ class Date : public Object {
 
 
 /**
+ * An instance of the built-in Number constructor (ECMA-262, 15.7).
+ */
+class BoxedNumber : public Object {

[Vyacheslav Egorov (Chromium), 2011/07/12 20:38:12]

XXXObject

[zarko, 2011/07/12 21:42:06]

Done.

+ public:
+  V8EXPORT static Local<Value> New(double value);
+
+  /**
+   * A specialization of Value::NumberValue that is more efficient
+   * because we know the structure of this object.
+   */
+  V8EXPORT double NumberValue() const;
+
+  static inline BoxedNumber* Cast(v8::Value* obj);
+
+ private:
+  V8EXPORT static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * An instance of the built-in Boolean constructor (ECMA-262, 15.6).
+ */
+class BoxedBoolean : public Object {
+ public:
+  V8EXPORT static Local<Value> New(bool value);
+
+  /**
+   * A specialization of Value::BooleanValue that is more efficient
+   * because we know the structure of this object.
+   */
+  V8EXPORT bool BooleanValue() const;
+
+  static inline BoxedBoolean* Cast(v8::Value* obj);
+
+ private:
+  V8EXPORT static void CheckCast(v8::Value* obj);
+};
+
+
+/**
+ * An instance of the built-in String constructor (ECMA-262, 15.5).
+ */
+class BoxedString : public Object {
+ public:
+  V8EXPORT static Local<Value> New(Handle<String> value);
+
+  /**
+   * Returns the String held by the box.
+   */
+  V8EXPORT Local<String> StringValue() const;
+
+  static inline BoxedString* 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 {
@@ -4035,6 +4122,30 @@ Date* Date::Cast(v8::Value* value) {
 }
 
 
+BoxedString* BoxedString::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<BoxedString*>(value);
+}
+
+
+BoxedNumber* BoxedNumber::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<BoxedNumber*>(value);
+}
+
+
+BoxedBoolean* BoxedBoolean::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<BoxedBoolean*>(value);
+}
+
+
 RegExp* RegExp::Cast(v8::Value* value) {
 #ifdef V8_ENABLE_CHECKS
   CheckCast(value);