diff options
Diffstat (limited to 'js/src/vm/StringType-inl.h')
| -rw-r--r-- | js/src/vm/StringType-inl.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/js/src/vm/StringType-inl.h b/js/src/vm/StringType-inl.h index b0424b868c..8954a46aac 100644 --- a/js/src/vm/StringType-inl.h +++ b/js/src/vm/StringType-inl.h @@ -321,6 +321,10 @@ inline JSRope::JSRope(JSString* left, JSString* right, size_t length) { // |length| must be the sum of the length of both child nodes. MOZ_ASSERT(left->length() + right->length() == length); + // |isLatin1| is set when both children are guaranteed to contain only Latin-1 + // characters. Note that flattening either rope child can clear the Latin-1 + // flag of that child, so it's possible that a Latin-1 rope can end up with + // both children being two-byte (dependent) strings. bool isLatin1 = left->hasLatin1Chars() && right->hasLatin1Chars(); // Do not try to make a rope that could fit inline. |