getCachedOrCreate method
Implementation
Page getCachedOrCreate(PageInstance instance, Page Function() create) {
if (!pages.containsKey(instance)) {
pages[instance] = create();
}
return pages[instance]!;
}
Page getCachedOrCreate(PageInstance instance, Page Function() create) {
if (!pages.containsKey(instance)) {
pages[instance] = create();
}
return pages[instance]!;
}