bool
JSRope::copyNonPureCharsInternal(ThreadSafeContext *cx, ScopedJSFreePtr<jschar> &out,
bool nullTerminate) const
{
/*
* Perform non-destructive post-order traversal of the rope, splatting
* each node's characters into a contiguous buffer.
*/
size_t n = length();
if (cx)
out.reset(cx->pod_malloc<jschar>(n + 1));
else
out.reset(js_pod_malloc<jschar>(n + 1));
if (!out)
return false;
Vector<const JSString *, 8, SystemAllocPolicy> nodeStack;
const JSString *str = this;
jschar *pos = out;
while (true) {
if (str->isRope()) {
if (!nodeStack.append(str->asRope().rightChild()))
return false;
str = str->asRope().leftChild();
} else {
size_t len = str->length();
PodCopy(pos, str->asLinear().chars(), len);
pos += len;
if (nodeStack.empty())
break;
str = nodeStack.popCopy();
}
}
JS_ASSERT(pos == out + n);
if (nullTerminate)
out[n] = 0;
return true;
}
bool
JSDependentString::copyNonPureCharsZ(ThreadSafeContext *cx, ScopedJSFreePtr<jschar> &out) const
{
JS_ASSERT(JSString::isDependent());
size_t n = length();
jschar *s = cx->pod_malloc<jschar>(n + 1);
if (!s)
return false;
PodCopy(s, nonInlineChars(), n);
s[n] = 0;
out.reset(s);
return true;
}