Upgrade V8 to 3.9.24.6

1 files changed, 11 insertions, 0 deletions

diff --git a/deps/v8/src/unicode.cc b/deps/v8/src/unicode.cc
index 61c649f5e..14f380642 100644
--- a/deps/v8/src/unicode.cc
+++ b/deps/v8/src/unicode.cc
@@ -276,6 +276,7 @@ uchar Utf8::CalculateValue(const byte* str,
   return kBadChar;
 }
 
+
 const byte* Utf8::ReadBlock(Buffer<const char*> str, byte* buffer,
     unsigned capacity, unsigned* chars_read_ptr, unsigned* offset_ptr) {
   unsigned offset = *offset_ptr;
@@ -338,6 +339,16 @@ unsigned CharacterStream::Length() {
   return result;
 }
 
+unsigned CharacterStream::Utf16Length() {
+  unsigned result = 0;
+  while (has_more()) {
+    uchar c = GetNext();
+    result += c > Utf16::kMaxNonSurrogateCharCode ? 2 : 1;
+  }
+  Rewind();
+  return result;
+}
+
 void CharacterStream::Seek(unsigned position) {
   Rewind();
   for (unsigned i = 0; i < position; i++) {