Function AST_Free

src/ast/ast.c:825–858

}

void AST_Free
(
	AST *ast
) {
	if(ast == NULL) return;

	int ref_count = AST_DecRefCount(ast);

	// check if the ast has additional copies
	if(ref_count == 0) {
		// free and nullify parameters parse result if needed
		// after execution, as they are only save for the execution lifetime
		if(ast->params_parse_result != NULL) {
			parse_result_free(ast->params_parse_result);
		}

		// no valid references, the struct can be disposed completely
		if(ast->free_root) {
			// this is a generated AST, free its root node
			cypher_astnode_free((cypher_astnode_t *) ast->root);
		} else {
			// this is the master AST
			// free the annotation contexts that have been constructed
			AST_AnnotationCtxCollection_Free(ast->anot_ctx_collection);
			parse_result_free(ast->parse_result);
		}

		if(ast->referenced_entities) raxFree(ast->referenced_entities);

		rm_free(ast->ref_count);
	}

	rm_free(ast);
}