public final XSSimpleTypeDecl getSimpleTypeDecl(){
int chunk = fSTDeclIndex >> CHUNK_SHIFT;
int index = fSTDeclIndex & CHUNK_MASK;
ensureSTDeclCapacity(chunk);
if (fSTDecl[chunk][index] == null) {
fSTDecl[chunk][index] = new XSSimpleTypeDecl();
} else {
fSTDecl[chunk][index].reset();
}
fSTDeclIndex++;
return fSTDecl[chunk][index];