PassRefPtr<CSSVariableData> CSSVariableResolver::resolveCustomProperty(AtomicString name, const CSSVariableData& variableData)
{
ASSERT(variableData.needsVariableResolution());
Vector<CSSParserToken> tokens;
m_variablesSeen.add(name);
bool success = resolveTokenRange(variableData.tokens(), tokens);
m_variablesSeen.remove(name);
// The old variable data holds onto the backing string the new resolved CSSVariableData
// relies on. Ensure it will live beyond us overwriting the RefPtr in StyleVariableData.
ASSERT(variableData.refCount() > 1);
if (!success || !m_cycleStartPoints.isEmpty()) {
m_cycleStartPoints.remove(name);
return nullptr;
}
return CSSVariableData::createResolved(tokens, variableData);
}
