This requires some adjustment to Equals(). Previously, when you wrote:
fooString.Equals(barString + bazString)
you'd get a tuple for the operator+, which implicitly converts to nsTSubstring, which resolves into nsTSubstring::Equals(const nsTSubstring&).
Now that Equals has moved one level up:
nsTStringRepr::Equals(const nsTStringRepr&)
The compiler can't make the double-leap from nsTSubstringTuple -> nsTSubstring -> nsTStringRepr.
So I implemented this manually.
MozReview-Commit-ID: 5x8XhndOToJ
All nsTStringRepr methods must be const, so the mutators remain on nsTSubstring.
I left a small number of const methods on nsTSubstring, e.g. Capacity(), the rationale being that you would only be interested in this method if you intend to mutate the string.
I considered splitting up the typedefs block and leaving behind the ones related to mutation (e.g. nsWritingIterator) but I think it makes for clearer documentation to have them all in one place.
MozReview-Commit-ID: 7dEaRgc8NLK
I've named it after the similar ns(C)StringRepr in the rust bindings code.
This is just the minimal definition of the structure. Bulk move of methods coming in next patch.
MozReview-Commit-ID: 4aQrpIWRTm7
Cleanup in preparation for upcoming patches:
- By using an accessor method, nsTPromiseFlatString no longer needs to be a friend.
- The explicit uint32_t constructors are unused.
- The abstract_string_type typedef is unused (and will be potentially confusing in the next patch, so removing).
- The three-param ctor for nsTSubstring no longer needs to be public "for convenience".
- friend class nsTObsoleteAStringThunk_CharT no longer exists.
MozReview-Commit-ID: 4ibJLNzn13k
This requires some adjustment to Equals(). Previously, when you wrote:
fooString.Equals(barString + bazString)
you'd get a tuple for the operator+, which implicitly converts to nsTSubstring, which resolves into nsTSubstring::Equals(const nsTSubstring&).
Now that Equals has moved one level up:
nsTStringRepr::Equals(const nsTStringRepr&)
The compiler can't make the double-leap from nsTSubstringTuple -> nsTSubstring -> nsTStringRepr.
So I implemented this manually.
MozReview-Commit-ID: 5x8XhndOToJ
All nsTStringRepr methods must be const, so the mutators remain on nsTSubstring.
I left a small number of const methods on nsTSubstring, e.g. Capacity(), the rationale being that you would only be interested in this method if you intend to mutate the string.
I considered splitting up the typedefs block and leaving behind the ones related to mutation (e.g. nsWritingIterator) but I think it makes for clearer documentation to have them all in one place.
MozReview-Commit-ID: 7dEaRgc8NLK
I've named it after the similar ns(C)StringRepr in the rust bindings code.
This is just the minimal definition of the structure. Bulk move of methods coming in next patch.
MozReview-Commit-ID: 4aQrpIWRTm7
Cleanup in preparation for upcoming patches:
- By using an accessor method, nsTPromiseFlatString no longer needs to be a friend.
- The explicit uint32_t constructors are unused.
- The abstract_string_type typedef is unused (and will be potentially confusing in the next patch, so removing).
- The three-param ctor for nsTSubstring no longer needs to be public "for convenience".
- friend class nsTObsoleteAStringThunk_CharT no longer exists.
MozReview-Commit-ID: 4ibJLNzn13k
The patch changes all uses of SizeOfIncludingThisMustBeUnshared() to
SizeOfIncludingThisIfUnshared(). This incurs the (tiny) cost of an unnecessary
IsReadonly() check for guaranteed-unshared strings, but avoids the possible
assertion failures that would occur when MustBeUnshared() was used incorrectly
on shared strings, which is an easy mistake to make.
