Function AR_LABELS

src/arithmetic/entity_funcs/entity_funcs.c:28–46

returns an array of string representations of each label of a node

// returns an array of string representations of each label of a node
SIValue AR_LABELS(SIValue *argv, int argc, void *private_data) {
	if(SI_TYPE(argv[0]) == T_NULL) return SI_NullVal();

	Node *node = argv[0].ptrval;
	GraphContext *gc = QueryCtx_GetGraphCtx();
	// retrieve node labels
	uint label_count;
	NODE_GET_LABELS(gc->g, node, label_count);
	SIValue res = SI_Array(label_count);

	for(uint i = 0; i < label_count; i++) {
		Schema *s = GraphContext_GetSchemaByID(gc, labels[i], SCHEMA_NODE);
		ASSERT(s != NULL);
		const char *name = Schema_GetName(s);
		SIArray_Append(&res, SI_ConstStringVal(name));
	}

	return res;
}

// returns true if input node contains all specified labels, otherwise false
SIValue AR_HAS_LABELS(SIValue *argv, int argc, void *private_data) {