Function _add_names_projections

src/ast/ast_rewrite_call_subquery.c:43–69

adds projections from `names` to `inter_names` into `projections` array

// adds projections from `names` to `inter_names` into `projections` array
static uint _add_names_projections
(
	cypher_astnode_t *projections[],  // array of projections
	uint proj_idx,                    // index to start adding projections
	char **names,                     // bound vars
	char **inter_names,               // internal representation of bound vars
	bool hide                         // hide or reveal vars
) {
	uint n_names = hide ? array_len(names) : array_len(inter_names);

	for(uint i = 0; i < n_names; i++) {
		// create a projection for the bound var
		struct cypher_input_range range = {0};
		cypher_astnode_t *exp = cypher_ast_identifier(names[i],
			strlen(names[i]), range);
		cypher_astnode_t *alias = cypher_ast_identifier(inter_names[i],
			strlen(inter_names[i]), range);
		cypher_astnode_t *children[2];
		children[0] = exp;
		children[1] = alias;

		projections[proj_idx++] = cypher_ast_projection(exp, alias, children,
			2, range);
	}

	return proj_idx;
}

// add projections to projections array, corresponding to the bound vars (names)
// and their internal representation (inter_names)