1 // Copyright 2012-2015 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 #![allow(non_camel_case_types, non_upper_case_globals)]
13 pub use self::astencode_tag::*;
15 // RBML enum definitions and utils shared by the encoder and decoder
17 // 0x00..0x1f: reserved for RBML generic type tags
18 // 0x20..0xef: free for use, preferred for frequent tags
19 // 0xf0..0xff: internally used by RBML to encode 0x100..0xfff in two bytes
20 // 0x100..0xfff: free for use, preferred for infrequent tags
22 pub const tag_items: usize = 0x100; // top-level only
24 pub const tag_paths_data_name: usize = 0x20;
26 pub const tag_def_id: usize = 0x21;
28 pub const tag_items_data: usize = 0x22;
30 pub const tag_items_data_item: usize = 0x23;
32 pub const tag_items_data_item_family: usize = 0x24;
34 pub const tag_items_data_item_type: usize = 0x25;
36 pub const tag_items_data_item_symbol: usize = 0x26;
38 pub const tag_items_data_item_variant: usize = 0x27;
40 pub const tag_items_data_parent_item: usize = 0x28;
42 pub const tag_items_data_item_is_tuple_struct_ctor: usize = 0x29;
44 pub const tag_items_closure_kind: usize = 0x2a;
45 pub const tag_items_closure_ty: usize = 0x2b;
46 pub const tag_def_key: usize = 0x2c;
50 pub const tag_index: usize = 0x110; // top-level only
51 pub const tag_xref_index: usize = 0x111; // top-level only
52 pub const tag_xref_data: usize = 0x112; // top-level only
54 pub const tag_meta_item_name_value: usize = 0x2f;
56 pub const tag_meta_item_name: usize = 0x30;
58 pub const tag_meta_item_value: usize = 0x31;
60 pub const tag_attributes: usize = 0x101; // top-level only
62 pub const tag_attribute: usize = 0x32;
64 pub const tag_meta_item_word: usize = 0x33;
66 pub const tag_meta_item_list: usize = 0x34;
68 // The list of crates that this crate depends on
69 pub const tag_crate_deps: usize = 0x102; // top-level only
71 // A single crate dependency
72 pub const tag_crate_dep: usize = 0x35;
74 pub const tag_crate_hash: usize = 0x103; // top-level only
75 pub const tag_crate_crate_name: usize = 0x104; // top-level only
76 pub const tag_crate_disambiguator: usize = 0x113; // top-level only
78 pub const tag_crate_dep_crate_name: usize = 0x36;
79 pub const tag_crate_dep_hash: usize = 0x37;
80 pub const tag_crate_dep_explicitly_linked: usize = 0x38; // top-level only
82 pub const tag_item_trait_item: usize = 0x3a;
84 pub const tag_item_trait_ref: usize = 0x3b;
86 // discriminator value for variants
87 pub const tag_disr_val: usize = 0x3c;
89 // used to encode ast_map::PathElem
90 pub const tag_path: usize = 0x3d;
91 pub const tag_path_len: usize = 0x3e;
92 pub const tag_path_elem_mod: usize = 0x3f;
93 pub const tag_path_elem_name: usize = 0x40;
94 pub const tag_item_field: usize = 0x41;
96 pub const tag_item_variances: usize = 0x43;
98 trait items contain tag_item_trait_item elements,
99 impl items contain tag_item_impl_item elements, and classes
100 have both. That's because some code treats classes like traits,
101 and other code treats them like impls. Because classes can contain
102 both, tag_item_trait_item and tag_item_impl_item have to be two
105 pub const tag_item_impl_item: usize = 0x44;
106 pub const tag_item_trait_method_explicit_self: usize = 0x45;
109 // Reexports are found within module tags. Each reexport contains def_ids
111 pub const tag_items_data_item_reexport: usize = 0x46;
112 pub const tag_items_data_item_reexport_def_id: usize = 0x47;
113 pub const tag_items_data_item_reexport_name: usize = 0x48;
115 // used to encode crate_ctxt side tables
117 #[derive(Copy, Clone, PartialEq)]
119 pub enum astencode_tag { // Reserves 0x50 -- 0x6f
128 tag_table_def = 0x56,
129 tag_table_node_type = 0x57,
130 tag_table_item_subst = 0x58,
131 tag_table_freevars = 0x59,
132 // GAP 0x5a, 0x5b, 0x5c, 0x5d, 0x5e
133 tag_table_method_map = 0x5f,
135 tag_table_adjustments = 0x61,
136 // GAP 0x62, 0x63, 0x64, 0x65
137 tag_table_upvar_capture_map = 0x66,
139 tag_table_const_qualif = 0x69,
140 tag_table_cast_kinds = 0x6a,
144 pub const tag_item_trait_item_sort: usize = 0x70;
146 pub const tag_crate_triple: usize = 0x105; // top-level only
148 pub const tag_dylib_dependency_formats: usize = 0x106; // top-level only
150 // Language items are a top-level directory (for speed). Hierarchy:
153 // - tag_lang_items_item
154 // - tag_lang_items_item_id: u32
155 // - tag_lang_items_item_index: u32
157 pub const tag_lang_items: usize = 0x107; // top-level only
158 pub const tag_lang_items_item: usize = 0x73;
159 pub const tag_lang_items_item_id: usize = 0x74;
160 pub const tag_lang_items_item_index: usize = 0x75;
161 pub const tag_lang_items_missing: usize = 0x76;
163 pub const tag_item_unnamed_field: usize = 0x77;
164 pub const tag_items_data_item_visibility: usize = 0x78;
165 pub const tag_items_data_item_inherent_impl: usize = 0x79;
167 pub const tag_mod_child: usize = 0x7b;
168 pub const tag_misc_info: usize = 0x108; // top-level only
169 pub const tag_misc_info_crate_items: usize = 0x7c;
171 pub const tag_impls: usize = 0x109; // top-level only
172 pub const tag_impls_trait: usize = 0x7d;
173 pub const tag_impls_trait_impl: usize = 0x7e;
175 // GAP 0x7f, 0x80, 0x81
177 pub const tag_native_libraries: usize = 0x10a; // top-level only
178 pub const tag_native_libraries_lib: usize = 0x82;
179 pub const tag_native_libraries_name: usize = 0x83;
180 pub const tag_native_libraries_kind: usize = 0x84;
182 pub const tag_plugin_registrar_fn: usize = 0x10b; // top-level only
184 pub const tag_method_argument_names: usize = 0x85;
185 pub const tag_method_argument_name: usize = 0x86;
187 pub const tag_reachable_ids: usize = 0x10c; // top-level only
188 pub const tag_reachable_id: usize = 0x87;
190 pub const tag_items_data_item_stability: usize = 0x88;
192 pub const tag_items_data_item_repr: usize = 0x89;
194 pub const tag_struct_fields: usize = 0x10d; // top-level only
195 pub const tag_struct_field: usize = 0x8a;
197 pub const tag_items_data_item_struct_ctor: usize = 0x8b;
198 pub const tag_attribute_is_sugared_doc: usize = 0x8c;
200 pub const tag_items_data_region: usize = 0x8e;
202 pub const tag_region_param_def: usize = 0x8f;
203 pub const tag_region_param_def_ident: usize = 0x90;
204 pub const tag_region_param_def_def_id: usize = 0x91;
205 pub const tag_region_param_def_space: usize = 0x92;
206 pub const tag_region_param_def_index: usize = 0x93;
208 pub const tag_type_param_def: usize = 0x94;
210 pub const tag_item_generics: usize = 0x95;
211 pub const tag_method_ty_generics: usize = 0x96;
213 pub const tag_type_predicate: usize = 0x97;
214 pub const tag_self_predicate: usize = 0x98;
215 pub const tag_fn_predicate: usize = 0x99;
217 pub const tag_unsafety: usize = 0x9a;
219 pub const tag_associated_type_names: usize = 0x9b;
220 pub const tag_associated_type_name: usize = 0x9c;
222 pub const tag_polarity: usize = 0x9d;
224 pub const tag_macro_defs: usize = 0x10e; // top-level only
225 pub const tag_macro_def: usize = 0x9e;
226 pub const tag_macro_def_body: usize = 0x9f;
227 pub const tag_macro_def_span_lo: usize = 0xa8;
228 pub const tag_macro_def_span_hi: usize = 0xa9;
230 pub const tag_paren_sugar: usize = 0xa0;
232 pub const tag_codemap: usize = 0xa1;
233 pub const tag_codemap_filemap: usize = 0xa2;
235 pub const tag_item_super_predicates: usize = 0xa3;
237 pub const tag_defaulted_trait: usize = 0xa4;
239 pub const tag_impl_coerce_unsized_kind: usize = 0xa5;
241 pub const tag_items_data_item_constness: usize = 0xa6;
243 pub const tag_items_data_item_deprecation: usize = 0xa7;
245 pub const tag_items_data_item_defaultness: usize = 0xa8;
247 pub const tag_items_data_parent_impl: usize = 0xa9;
249 pub const tag_rustc_version: usize = 0x10f;
250 pub fn rustc_version() -> String {
253 option_env!("CFG_VERSION").unwrap_or("unknown version")