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/src/conversions.h b/src/conversions.h
index 4cbeeca..9c0b8f3 100644
--- a/src/conversions.h
+++ b/src/conversions.h
@@ -29,10 +29,32 @@
#define V8_CONVERSIONS_H_
#include "scanner-base.h"
+#include "utils.h"
namespace v8 {
namespace internal {
+// Maximum number of significant digits in decimal representation.
+// The longest possible double in decimal representation is
+// (2^53 - 1) * 2 ^ -1074 that is (2 ^ 53 - 1) * 5 ^ 1074 / 10 ^ 1074
+// (768 digits). If we parse a number whose first digits are equal to a
+// mean of 2 adjacent doubles (that could have up to 769 digits) the result
+// must be rounded to the bigger one unless the tail consists of zeros, so
+// we don't need to preserve all the digits.
+const int kMaxSignificantDigits = 772;
+
+
+static bool isDigit(int x, int radix) {
+ return (x >= '0' && x <= '9' && x < '0' + radix)
+ || (radix > 10 && x >= 'a' && x < 'a' + radix - 10)
+ || (radix > 10 && x >= 'A' && x < 'A' + radix - 10);
+}
+
+
+static double SignedZero(bool negative) {
+ return negative ? -0.0 : 0.0;
+}
+
// The fast double-to-(unsigned-)int conversion routine does not guarantee
// rounding towards zero.
@@ -87,17 +109,8 @@
};
-// Convert from Number object to C integer.
-static inline int32_t NumberToInt32(Object* number);
-static inline uint32_t NumberToUint32(Object* number);
-
-
// Converts a string into a double value according to ECMA-262 9.3.1
double StringToDouble(UnicodeCache* unicode_cache,
- String* str,
- int flags,
- double empty_string_val = 0);
-double StringToDouble(UnicodeCache* unicode_cache,
Vector<const char> str,
int flags,
double empty_string_val = 0);
@@ -111,9 +124,6 @@
int flags,
double empty_string_val = 0);
-// Converts a string into an integer.
-double StringToInt(UnicodeCache* unicode_cache, String* str, int radix);
-
// Converts a double to a string value according to ECMA-262 9.8.1.
// The buffer should be large enough for any floating point number.
// 100 characters is enough.