Function AR_HAS_LABELS

src/arithmetic/entity_funcs/entity_funcs.c:49–88

returns true if input node contains all specified labels, otherwise false

// returns true if input node contains all specified labels, otherwise false
SIValue AR_HAS_LABELS(SIValue *argv, int argc, void *private_data) {
	if(SI_TYPE(argv[0]) == T_NULL) return SI_NullVal();

	bool         res       =  true;
	Node         *node     =  argv[0].ptrval;
	SIValue      labels    =  argv[1];
	EntityID     id        =  ENTITY_GET_ID(node);
	GraphContext *gc       =  QueryCtx_GetGraphCtx();
	Graph        *g        =  gc->g;

	// iterate over given labels
	uint32_t labels_length = SIArray_Length(labels);
	for (uint32_t i = 0; i < labels_length; i++) {
		SIValue label_value = SIArray_Get(labels, i);
		if(SI_TYPE(label_value) != T_STRING) {
			Error_SITypeMismatch(label_value, T_STRING);
			return SI_NullVal();
		}
		char *label = label_value.stringval;
		Schema *s = GraphContext_GetSchema(gc, label, SCHEMA_NODE);

		// validate schema exists
		if(!s) {
			res = false;
			break;
		}

		// validate label is set
		bool x;
		RG_Matrix M = Graph_GetLabelMatrix(g, Schema_GetID(s));
		ASSERT(M != NULL);

		if(RG_Matrix_extractElement_BOOL(&x, M, id, id) == GrB_NO_VALUE) {
			res = false;
			break;
		}
	}
	
	return SI_BoolVal(res);
}

/* returns a string representation of the type of a relation. */
SIValue AR_TYPE(SIValue *argv, int argc, void *private_data) {