// In expression position, but not statement position, when we expand a macro, // we replace the span of the expanded expression with that of the call site. macro_rules! nested_expr { () => (fake) //~ ERROR cannot find //~^ ERROR cannot find } macro_rules! call_nested_expr { () => (nested_expr!()) } macro_rules! call_nested_expr_sum { () => { 1 + nested_expr!(); } } fn main() { 1 + call_nested_expr!(); call_nested_expr_sum!(); }