Commit 6455ef40 authored by Steve Fink's avatar Steve Fink
Browse files

Bug 1885779 - Canonicalize BigInts read through structured clone a=RyanVM 

Original Revision: https://phabricator.services.mozilla.com/D205661

Differential Revision: https://phabricator.services.mozilla.com/D206168
parent 013728f2

js/src/vm/BigIntType.h

+1 −0
Original line number Diff line number Diff line
@@ -398,6 +398,7 @@ class BigInt final : public js::gc::CellWithLengthAndFlags { 
  static JSLinearString* toStringGeneric(JSContext* cx, Handle<BigInt*>,

                                         unsigned radix);



  friend struct ::JSStructuredCloneReader; // So it can call the following:

  static BigInt* destructivelyTrimHighZeroDigits(JSContext* cx, BigInt* x);



  bool absFitsInUint64() const { return digitLength() <= 64 / DigitBits; }

js/src/vm/StructuredClone.cpp

+1 −1
Original line number Diff line number Diff line
@@ -2489,7 +2489,7 @@ BigInt* JSStructuredCloneReader::readBigInt(uint32_t data) { 
  if (!in.readArray(result->digits().data(), length)) {

    return nullptr;

  }

  return result;

  return JS::BigInt::destructivelyTrimHighZeroDigits(context(), result);

}



static uint32_t TagToV1ArrayType(uint32_t tag) {