public @NotNull LighterAST getLighterASTForPsiDependentIndex() {
LighterAST lighterAST = getUserData(IndexingDataKeys.LIGHTER_AST_NODE_KEY);
if (lighterAST == null) {
FileASTNode node = getPsiFileForPsiDependentIndex().getNode();
lighterAST =
myLighterASTShouldBeThreadSafe ? new TreeBackedLighterAST(node) : node.getLighterAST();
putUserData(IndexingDataKeys.LIGHTER_AST_NODE_KEY, lighterAST);
}
return lighterAST;
}
