src/test/codegen-units/item-collection/non-generic-closures.rs

   1 // In the current version of the collector that still has to support
   2 // legacy-codegen, closures do not generate their own MonoItems, so we are
   3 // ignoring this test until MIR codegen has taken over completely
   4 // ignore-test
   5
   6 //
   7 // compile-flags:-Zprint-mono-items=eager
   8
   9 #![deny(dead_code)]
  10 #![feature(start)]
  11
  12 //~ MONO_ITEM fn non_generic_closures::temporary[0]
  13 fn temporary() {
  14     //~ MONO_ITEM fn non_generic_closures::temporary[0]::{{closure}}[0]
  15     (|a: u32| {
  16         let _ = a;
  17     })(4);
  18 }
  19
  20 //~ MONO_ITEM fn non_generic_closures::assigned_to_variable_but_not_executed[0]
  21 fn assigned_to_variable_but_not_executed() {
  22     //~ MONO_ITEM fn non_generic_closures::assigned_to_variable_but_not_executed[0]::{{closure}}[0]
  23     let _x = |a: i16| {
  24         let _ = a + 1;
  25     };
  26 }
  27
  28 //~ MONO_ITEM fn non_generic_closures::assigned_to_variable_executed_directly[0]
  29 fn assigned_to_variable_executed_indirectly() {
  30     //~ MONO_ITEM fn non_generic_closures::assigned_to_variable_executed_directly[0]::{{closure}}[0]
  31     let f = |a: i32| {
  32         let _ = a + 2;
  33     };
  34     run_closure(&f);
  35 }
  36
  37 //~ MONO_ITEM fn non_generic_closures::assigned_to_variable_executed_indirectly[0]
  38 fn assigned_to_variable_executed_directly() {
  39     //~ MONO_ITEM fn non_generic_closures::assigned_to_variable_executed_indirectly[0]::{{closure}}[0]
  40     let f = |a: i64| {
  41         let _ = a + 3;
  42     };
  43     f(4);
  44 }
  45
  46 //~ MONO_ITEM fn non_generic_closures::start[0]
  47 #[start]
  48 fn start(_: isize, _: *const *const u8) -> isize {
  49     temporary();
  50     assigned_to_variable_but_not_executed();
  51     assigned_to_variable_executed_directly();
  52     assigned_to_variable_executed_indirectly();
  53
  54     0
  55 }
  56
  57 //~ MONO_ITEM fn non_generic_closures::run_closure[0]
  58 fn run_closure(f: &Fn(i32)) {
  59     f(3);
  60 }