Structure* Structure::nonPropertyTransition(JSGlobalData& globalData, Structure* structure, NonPropertyTransition transitionKind)
{
unsigned attributes = toAttributes(transitionKind);
IndexingType indexingType = newIndexingType(structure->indexingTypeIncludingHistory(), transitionKind);
if (JSGlobalObject* globalObject = structure->m_globalObject.get()) {
if (globalObject->isOriginalArrayStructure(structure)) {
Structure* result = globalObject->originalArrayStructureForIndexingType(indexingType);
if (result->indexingTypeIncludingHistory() == indexingType) {
structure->notifyTransitionFromThisStructure();
return result;
}
}
}
if (Structure* existingTransition = structure->m_transitionTable.get(0, attributes)) {
ASSERT(existingTransition->m_attributesInPrevious == attributes);
ASSERT(existingTransition->indexingTypeIncludingHistory() == indexingType);
return existingTransition;
}
Structure* transition = create(globalData, structure);
transition->setPreviousID(globalData, transition, structure);
transition->m_attributesInPrevious = attributes;
transition->m_indexingType = indexingType;
transition->propertyTable().set(globalData, transition, structure->takePropertyTableOrCloneIfPinned(globalData, transition));
transition->m_offset = structure->m_offset;
checkOffset(transition->m_offset, transition->inlineCapacity());
structure->m_transitionTable.add(globalData, transition);
transition->checkOffsetConsistency();
return transition;
}
/**
* Gets the index of the attribute with the given qualified name.
*
* @param attributePointer to the attribute array
* @param qName to look for
* @returns index of attribute with the given uri and local name or -1 if not
* found
*/
static jint ExpatAttributes_getIndexForQName(JNIEnv* env, jobject,
jlong attributePointer, jstring qName) {
ScopedUtfChars qNameBytes(env, qName);
if (qNameBytes.c_str() == NULL) {
return -1;
}
const char** attributes = toAttributes(attributePointer);
int found = -1;
for (int index = 0; attributes[index * 2]; ++index) {
if (ExpatElementName(NULL, NULL, attributePointer, index).matchesQName(qNameBytes.c_str())) {
found = index;
break;
}
}
return found;
}
Structure* Structure::nonPropertyTransition(JSGlobalData& globalData, Structure* structure, NonPropertyTransition transitionKind)
{
unsigned attributes = toAttributes(transitionKind);
IndexingType indexingType = newIndexingType(structure->indexingTypeIncludingHistory(), transitionKind);
if (JSGlobalObject* globalObject = structure->m_globalObject.get()) {
if (globalObject->isOriginalArrayStructure(structure)) {
Structure* result = globalObject->originalArrayStructureForIndexingType(indexingType);
if (result->indexingTypeIncludingHistory() == indexingType) {
structure->notifyTransitionFromThisStructure();
return result;
}
}
}
if (Structure* existingTransition = structure->m_transitionTable.get(0, attributes)) {
ASSERT(existingTransition->m_attributesInPrevious == attributes);
ASSERT(existingTransition->indexingTypeIncludingHistory() == indexingType);
return existingTransition;
}
Structure* transition = create(globalData, structure);
transition->m_previous.set(globalData, transition, structure);
transition->m_attributesInPrevious = attributes;
transition->m_indexingType = indexingType;
transition->m_offset = structure->m_offset;
checkOffset(transition->m_offset, transition->inlineCapacity());
if (structure->m_propertyTable) {
if (structure->m_isPinnedPropertyTable)
transition->m_propertyTable = structure->m_propertyTable->copy(globalData, transition, structure->m_propertyTable->size() + 1);
else
transition->m_propertyTable = structure->m_propertyTable.release();
} else {
if (structure->m_previous)
transition->materializePropertyMap(globalData);
else
transition->createPropertyMap();
}
structure->m_transitionTable.add(globalData, transition);
return transition;
}
/**
* Gets the index of the attribute with the given URI and name.
*
* @param attributePointer to the attribute array
* @param uri to look for
* @param localName to look for
* @returns index of attribute with the given uri and local name or -1 if not
* found
*/
static jint ExpatAttributes_getIndex(JNIEnv* env, jobject, jlong attributePointer,
jstring uri, jstring localName) {
ScopedUtfChars uriBytes(env, uri);
if (uriBytes.c_str() == NULL) {
return -1;
}
ScopedUtfChars localNameBytes(env, localName);
if (localNameBytes.c_str() == NULL) {
return -1;
}
const char** attributes = toAttributes(attributePointer);
for (int index = 0; attributes[index * 2]; ++index) {
if (ExpatElementName(NULL, NULL, attributePointer, index).matches(uriBytes.c_str(),
localNameBytes.c_str())) {
return index;
}
}
return -1;
}
ExpatElementName(JNIEnv* env, ParsingContext* parsingContext, jlong attributePointer, jint index) {
const char** attributes = toAttributes(attributePointer);
const char* name = attributes[index * 2];
init(env, parsingContext, name);
}
/**
* Gets the value of the attribute at the given index.
*
* @param object Java ExpatParser instance
* @param attributePointer to the attribute array
* @param index of the attribute
* @returns Java string containing attribute's value
*/
static jstring ExpatAttributes_getValueByIndex(JNIEnv* env, jobject,
jlong attributePointer, jint index) {
const char** attributes = toAttributes(attributePointer);
const char* value = attributes[(index * 2) + 1];
return env->NewStringUTF(value);
}
