Upgrade to V8 3.4
Merge 3.4.14.35
Simple merge required updates to makefiles only.
Bug: 568872
Change-Id: I403a38452c547e06fcfa951c12eca12a1bc40978
diff --git a/include/v8.h b/include/v8.h
index b4598c6..f4f81e4 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -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;
@@ -165,7 +168,6 @@
*/
template <class T> class Handle {
public:
-
/**
* Creates an empty handle.
*/
@@ -312,7 +314,6 @@
*/
template <class T> class Persistent : public Handle<T> {
public:
-
/**
* Creates an empty persistent handle that doesn't point to any
* storage cell.
@@ -586,7 +587,6 @@
*/
class V8EXPORT Script {
public:
-
/**
* Compiles the specified script (context-independent).
*
@@ -858,7 +858,6 @@
*/
class Value : public Data {
public:
-
/**
* Returns true if this value is the undefined value. See ECMA-262
* 4.3.10.
@@ -933,6 +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;
@@ -990,7 +1009,6 @@
*/
class String : public Primitive {
public:
-
/**
* Returns the number of characters in this string.
*/
@@ -1440,6 +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);
@@ -1470,6 +1495,13 @@
V8EXPORT Local<Array> GetPropertyNames();
/**
+ * This function has the same functionality as GetPropertyNames but
+ * the returned array doesn't contain the names of properties from
+ * prototype objects.
+ */
+ V8EXPORT Local<Array> GetOwnPropertyNames();
+
+ /**
* Get the prototype object. This does not skip objects marked to
* be skipped by __proto__ and it does not consult the security
* handler.
@@ -1640,6 +1672,7 @@
V8EXPORT static Local<Object> New();
static inline Object* Cast(Value* obj);
+
private:
V8EXPORT Object();
V8EXPORT static void CheckCast(Value* obj);
@@ -1742,6 +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 {
@@ -2141,6 +2231,13 @@
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.
+ */
+ void SetPrototypeAttributes(int attributes);
+
+ /**
* Returns true if the given object is an instance of this function
* template.
*/
@@ -2548,23 +2645,6 @@
/**
- * Profiler modules.
- *
- * In V8, profiler consists of several modules: CPU profiler, and different
- * kinds of heap profiling. Each can be turned on / off independently.
- * When PROFILER_MODULE_HEAP_SNAPSHOT flag is passed to ResumeProfilerEx,
- * modules are enabled only temporarily for making a snapshot of the heap.
- */
-enum ProfilerModules {
- PROFILER_MODULE_NONE = 0,
- PROFILER_MODULE_CPU = 1,
- PROFILER_MODULE_HEAP_STATS = 1 << 1,
- PROFILER_MODULE_JS_CONSTRUCTORS = 1 << 2,
- PROFILER_MODULE_HEAP_SNAPSHOT = 1 << 16
-};
-
-
-/**
* Collection of V8 heap information.
*
* Instances of this class can be passed to v8::V8::HeapStatistics to
@@ -2682,7 +2762,6 @@
void* GetData();
private:
-
Isolate();
Isolate(const Isolate&);
~Isolate();
@@ -2704,6 +2783,38 @@
int raw_size;
};
+
+/**
+ * A helper class for driving V8 startup data decompression. It is based on
+ * "CompressedStartupData" API functions from the V8 class. It isn't mandatory
+ * for an embedder to use this class, instead, API functions can be used
+ * directly.
+ *
+ * For an example of the class usage, see the "shell.cc" sample application.
+ */
+class V8EXPORT StartupDataDecompressor { // NOLINT
+ public:
+ StartupDataDecompressor();
+ virtual ~StartupDataDecompressor();
+ int Decompress();
+
+ protected:
+ virtual int DecompressData(char* raw_data,
+ int* raw_data_size,
+ const char* compressed_data,
+ int compressed_data_size) = 0;
+
+ private:
+ 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.
*/
@@ -2753,6 +2864,10 @@
* v8::V8::SetDecompressedStartupData(compressed_data);
* ... now V8 can be initialized
* ... make sure the decompressed data stays valid until V8 shutdown
+ *
+ * A helper class StartupDataDecompressor is provided. It implements
+ * the protocol of the interaction described above, and can be used in
+ * most cases instead of calling these API functions directly.
*/
static StartupData::CompressionAlgorithm GetCompressedStartupDataAlgorithm();
static int GetCompressedStartupDataCount();
@@ -2925,6 +3040,12 @@
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
@@ -2963,65 +3084,6 @@
static bool IsProfilerPaused();
/**
- * Resumes specified profiler modules. Can be called several times to
- * mark the opening of a profiler events block with the given tag.
- *
- * "ResumeProfiler" is equivalent to "ResumeProfilerEx(PROFILER_MODULE_CPU)".
- * See ProfilerModules enum.
- *
- * \param flags Flags specifying profiler modules.
- * \param tag Profile tag.
- */
- static void ResumeProfilerEx(int flags, int tag = 0);
-
- /**
- * Pauses specified profiler modules. Each call to "PauseProfilerEx" closes
- * a block of profiler events opened by a call to "ResumeProfilerEx" with the
- * same tag value. There is no need for blocks to be properly nested.
- * The profiler is paused when the last opened block is closed.
- *
- * "PauseProfiler" is equivalent to "PauseProfilerEx(PROFILER_MODULE_CPU)".
- * See ProfilerModules enum.
- *
- * \param flags Flags specifying profiler modules.
- * \param tag Profile tag.
- */
- static void PauseProfilerEx(int flags, int tag = 0);
-
- /**
- * Returns active (resumed) profiler modules.
- * See ProfilerModules enum.
- *
- * \returns active profiler modules.
- */
- static int GetActiveProfilerModules();
-
- /**
- * 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
@@ -3074,8 +3136,10 @@
* because of a call to TerminateExecution. In that case there are
* still JavaScript frames on the stack and the termination
* exception is still active.
+ *
+ * \param isolate The isolate in which to check.
*/
- static bool IsExecutionTerminating();
+ static bool IsExecutionTerminating(Isolate* isolate = NULL);
/**
* Releases any resources used by v8 and stops any utility threads
@@ -3144,7 +3208,6 @@
*/
class V8EXPORT TryCatch {
public:
-
/**
* Creates a new try/catch block and registers it with v8.
*/
@@ -3236,6 +3299,7 @@
void SetCaptureMessage(bool value);
private:
+ v8::internal::Isolate* isolate_;
void* next_;
void* exception_;
void* message_;
@@ -3690,7 +3754,6 @@
*/
class Internals {
public:
-
// These values match non-compiler-dependent values defined within
// the implementation of v8.
static const int kHeapObjectMapOffset = 0;
@@ -3703,7 +3766,7 @@
static const int kFullStringRepresentationMask = 0x07;
static const int kExternalTwoByteRepresentationTag = 0x02;
- static const int kJSObjectType = 0xa2;
+ static const int kJSObjectType = 0xa3;
static const int kFirstNonstringType = 0x80;
static const int kForeignType = 0x85;
@@ -4047,6 +4110,30 @@
}
+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);