src/test/debuginfo/issue-22656.rs

   1 // This test makes sure that the LLDB pretty printer does not throw an exception
   2 // when trying to handle a Vec<> or anything else that contains zero-sized
   3 // fields.
   4
   5 // min-lldb-version: 310
   6 // ignore-gdb
   7
   8 // compile-flags:-g
   9
  10 // === LLDB TESTS ==================================================================================
  11 // lldb-command:run
  12
  13 // lldb-command:print v
  14 // lldbg-check:[...]$0 = size=3 { [0] = 1 [1] = 2 [2] = 3 }
  15 // lldbr-check:(alloc::vec::Vec<i32>) v = size=3 { [0] = 1 [1] = 2 [2] = 3 }
  16 // lldb-command:print zs
  17 // lldbg-check:[...]$1 = { x = y = 123 z = w = 456 }
  18 // lldbr-check:(issue_22656::StructWithZeroSizedField) zs = { x = y = 123 z = w = 456 }
  19 // lldbr-command:continue
  20
  21 #![allow(unused_variables)]
  22 #![allow(dead_code)]
  23 #![feature(omit_gdb_pretty_printer_section)]
  24 #![omit_gdb_pretty_printer_section]
  25
  26 struct ZeroSizedStruct;
  27
  28 struct StructWithZeroSizedField {
  29     x: ZeroSizedStruct,
  30     y: u32,
  31     z: ZeroSizedStruct,
  32     w: u64
  33 }
  34
  35 fn main() {
  36     let v = vec![1,2,3];
  37
  38     let zs = StructWithZeroSizedField {
  39         x: ZeroSizedStruct,
  40         y: 123,
  41         z: ZeroSizedStruct,
  42         w: 456
  43     };
  44
  45     zzz(); // #break
  46 }
  47
  48 fn zzz() { () }