deps: update V8 to 6.4.388.40

PR-URL: https://github.com/nodejs/node/pull/17489
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/deps/v8/src/conversions.h b/deps/v8/src/conversions.h
index ac689c8b51..915a286e8f 100644
--- a/deps/v8/src/conversions.h
+++ b/deps/v8/src/conversions.h
@@ -105,8 +105,20 @@ double StringToDouble(UnicodeCache* unicode_cache,
 
 double StringToInt(Isolate* isolate, Handle<String> string, int radix);
 
-MaybeHandle<BigInt> StringToBigInt(Isolate* isolate, Handle<String> string,
+// This follows BigInt.parseInt semantics: "" => SyntaxError.
+MaybeHandle<BigInt> BigIntParseInt(Isolate* isolate, Handle<String> string,
                                    int radix);
+// This follows https://tc39.github.io/proposal-bigint/#sec-string-to-bigint
+// semantics: "" => 0n.
+MaybeHandle<BigInt> StringToBigInt(Isolate* isolate, Handle<String> string);
+
+// This version expects a zero-terminated character array. Radix will
+// be inferred from string prefix (case-insensitive):
+//   0x -> hex
+//   0o -> octal
+//   0b -> binary
+V8_EXPORT_PRIVATE MaybeHandle<BigInt> BigIntLiteral(Isolate* isolate,
+                                                    const char* string);
 
 const int kDoubleToCStringMinBufferSize = 100;
 
@@ -158,6 +170,7 @@ inline uint32_t PositiveNumberToUint32(Object* number);
 inline int32_t NumberToInt32(Object* number);
 inline uint32_t NumberToUint32(Object* number);
 inline int64_t NumberToInt64(Object* number);
+inline uint64_t PositiveNumberToUint64(Object* number);
 
 double StringToDouble(UnicodeCache* unicode_cache, Handle<String> string,
                       int flags, double empty_string_val = 0.0);