50 struct TargetSpec(Object);  struct
52 impl TargetSpec {  impl
53     fn new() -> TargetSpec {  in new()
54         TargetSpec(Vec::new())  in new()
62 impl Push<bool> for TargetSpec {  implementation
68 impl Push<i32> for TargetSpec {  implementation
74 impl Push<String> for TargetSpec {  implementation
80 impl Push<&str> for TargetSpec {  implementation
86 impl Push<Object> for TargetSpec {  implementation
92 impl Display for TargetSpec {  implementation
148     let mut ts = TargetSpec::new();  in main()