Function PropertyMap_New

src/ast/ast_shared.c:70–109

}

PropertyMap *PropertyMap_New
(
	const cypher_astnode_t *props
) {
	if(props == NULL) return NULL;
	ASSERT(cypher_astnode_type(props) == CYPHER_AST_MAP); // TODO add parameter support

	uint prop_count = cypher_ast_map_nentries(props);

	PropertyMap *map = rm_malloc(sizeof(PropertyMap));
	map->keys = array_new(const char *, prop_count);
	map->values = array_new(AR_ExpNode *, prop_count);

	for(uint prop_idx = 0; prop_idx < prop_count; prop_idx++) {
		uint insert_idx                   = prop_idx;
		const cypher_astnode_t *ast_key   = cypher_ast_map_get_key(props, prop_idx);
		const char *attribute             = cypher_ast_prop_name_get_value(ast_key);
		const cypher_astnode_t *ast_value = cypher_ast_map_get_value(props, prop_idx);
		AR_ExpNode *value                 = AR_EXP_FromASTNode(ast_value);

		// search for duplicate attributes
		uint count = array_len(map->keys);
		for (uint i = 0; i < count; i++) {
			if(strcmp(attribute, map->keys[i]) == 0) {
				insert_idx = i;
				break;
			}
		}

		if(insert_idx == prop_idx) {
			array_append(map->keys, attribute);			
			array_append(map->values, value);
		} else {
			AR_EXP_Free(map->values[insert_idx]);
			map->values[insert_idx] = value;
		}
	}

	return map;
}

static PropertyMap *_PropertyMap_Clone
(