1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #[feature(managed_boxes)];
13 use std::intrinsics::{TyDesc, get_tydesc, visit_tydesc, TyVisitor, Disr, Opaque};
20 impl TyVisitor for MyVisitor {
21 fn visit_bot(&mut self) -> bool {
22 self.types.push(~"bot");
23 println!("visited bot type");
26 fn visit_nil(&mut self) -> bool {
27 self.types.push(~"nil");
28 println!("visited nil type");
31 fn visit_bool(&mut self) -> bool {
32 self.types.push(~"bool");
33 println!("visited bool type");
36 fn visit_int(&mut self) -> bool {
37 self.types.push(~"int");
38 println!("visited int type");
41 fn visit_i8(&mut self) -> bool {
42 self.types.push(~"i8");
43 println!("visited i8 type");
46 fn visit_i16(&mut self) -> bool {
47 self.types.push(~"i16");
48 println!("visited i16 type");
51 fn visit_i32(&mut self) -> bool { true }
52 fn visit_i64(&mut self) -> bool { true }
54 fn visit_uint(&mut self) -> bool { true }
55 fn visit_u8(&mut self) -> bool { true }
56 fn visit_u16(&mut self) -> bool { true }
57 fn visit_u32(&mut self) -> bool { true }
58 fn visit_u64(&mut self) -> bool { true }
60 fn visit_f32(&mut self) -> bool { true }
61 fn visit_f64(&mut self) -> bool { true }
63 fn visit_char(&mut self) -> bool { true }
65 fn visit_estr_box(&mut self) -> bool { true }
66 fn visit_estr_uniq(&mut self) -> bool { true }
67 fn visit_estr_slice(&mut self) -> bool { true }
68 fn visit_estr_fixed(&mut self,
69 _sz: uint, _sz2: uint,
70 _align: uint) -> bool { true }
72 fn visit_box(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
73 fn visit_uniq(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
74 fn visit_ptr(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
75 fn visit_rptr(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
77 fn visit_vec(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
78 fn visit_unboxed_vec(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
79 fn visit_evec_box(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
80 fn visit_evec_uniq(&mut self, _mtbl: uint, inner: *TyDesc) -> bool {
81 self.types.push(~"[");
82 unsafe { visit_tydesc(inner, &mut *self as &mut TyVisitor); }
83 self.types.push(~"]");
86 fn visit_evec_slice(&mut self, _mtbl: uint, _inner: *TyDesc) -> bool { true }
87 fn visit_evec_fixed(&mut self, _n: uint, _sz: uint, _align: uint,
88 _mtbl: uint, _inner: *TyDesc) -> bool { true }
90 fn visit_enter_rec(&mut self, _n_fields: uint,
91 _sz: uint, _align: uint) -> bool { true }
92 fn visit_rec_field(&mut self, _i: uint, _name: &str,
93 _mtbl: uint, _inner: *TyDesc) -> bool { true }
94 fn visit_leave_rec(&mut self, _n_fields: uint,
95 _sz: uint, _align: uint) -> bool { true }
97 fn visit_enter_class(&mut self, _name: &str, _named_fields: bool, _n_fields: uint,
98 _sz: uint, _align: uint) -> bool { true }
99 fn visit_class_field(&mut self, _i: uint, _name: &str, _named: bool,
100 _mtbl: uint, _inner: *TyDesc) -> bool { true }
101 fn visit_leave_class(&mut self, _name: &str, _named_fields: bool, _n_fields: uint,
102 _sz: uint, _align: uint) -> bool { true }
104 fn visit_enter_tup(&mut self, _n_fields: uint,
105 _sz: uint, _align: uint) -> bool { true }
106 fn visit_tup_field(&mut self, _i: uint, _inner: *TyDesc) -> bool { true }
107 fn visit_leave_tup(&mut self, _n_fields: uint,
108 _sz: uint, _align: uint) -> bool { true }
110 fn visit_enter_enum(&mut self, _n_variants: uint,
111 _get_disr: extern unsafe fn(ptr: *Opaque) -> Disr,
112 _sz: uint, _align: uint) -> bool { true }
113 fn visit_enter_enum_variant(&mut self,
117 _name: &str) -> bool { true }
118 fn visit_enum_variant_field(&mut self, _i: uint, _offset: uint, _inner: *TyDesc)
120 fn visit_leave_enum_variant(&mut self,
124 _name: &str) -> bool { true }
125 fn visit_leave_enum(&mut self,
127 _get_disr: extern unsafe fn(ptr: *Opaque) -> Disr,
128 _sz: uint, _align: uint) -> bool { true }
130 fn visit_enter_fn(&mut self, _purity: uint, _proto: uint,
131 _n_inputs: uint, _retstyle: uint) -> bool { true }
132 fn visit_fn_input(&mut self, _i: uint, _mode: uint, _inner: *TyDesc) -> bool { true }
133 fn visit_fn_output(&mut self, _retstyle: uint, _variadic: bool, _inner: *TyDesc)
135 fn visit_leave_fn(&mut self, _purity: uint, _proto: uint,
136 _n_inputs: uint, _retstyle: uint) -> bool { true }
139 fn visit_trait(&mut self, _name: &str) -> bool { true }
140 fn visit_param(&mut self, _i: uint) -> bool { true }
141 fn visit_self(&mut self) -> bool { true }
144 fn visit_ty<T>(v: &mut MyVisitor) {
145 unsafe { visit_tydesc(get_tydesc::<T>(), v as &mut TyVisitor) }
149 let mut v = MyVisitor {types: Vec::new()};
151 visit_ty::<bool>(&mut v);
152 visit_ty::<int>(&mut v);
153 visit_ty::<i8>(&mut v);
154 visit_ty::<i16>(&mut v);
156 for s in v.types.iter() {
157 println!("type: {}", (*s).clone());
160 let vec_types: Vec<~str> = v.types.clone().move_iter().collect();
161 assert_eq!(vec_types, vec!(~"bool", ~"int", ~"i8", ~"i16"));