src/librustc/metadata/common.rs

   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.
   4 //
   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.
  10
  11 #![allow(non_camel_case_types, non_upper_case_globals)]
  12
  13 pub use self::astencode_tag::*;
  14
  15 use back::svh::Svh;
  16
  17 // RBML enum definitions and utils shared by the encoder and decoder
  18 //
  19 // 0x00..0x1f: reserved for RBML generic type tags
  20 // 0x20..0xef: free for use, preferred for frequent tags
  21 // 0xf0..0xff: internally used by RBML to encode 0x100..0xfff in two bytes
  22 // 0x100..0xfff: free for use, preferred for infrequent tags
  23
  24 pub const tag_items: usize = 0x100; // top-level only
  25
  26 pub const tag_paths_data_name: usize = 0x20;
  27
  28 pub const tag_def_id: usize = 0x21;
  29
  30 pub const tag_items_data: usize = 0x22;
  31
  32 pub const tag_items_data_item: usize = 0x23;
  33
  34 pub const tag_items_data_item_family: usize = 0x24;
  35
  36 pub const tag_items_data_item_type: usize = 0x25;
  37
  38 pub const tag_items_data_item_symbol: usize = 0x26;
  39
  40 pub const tag_items_data_item_variant: usize = 0x27;
  41
  42 pub const tag_items_data_parent_item: usize = 0x28;
  43
  44 pub const tag_items_data_item_is_tuple_struct_ctor: usize = 0x29;
  45
  46 pub const tag_index: usize = 0x2a;
  47
  48 pub const tag_index_buckets: usize = 0x2b;
  49
  50 pub const tag_index_buckets_bucket: usize = 0x2c;
  51
  52 pub const tag_index_buckets_bucket_elt: usize = 0x2d;
  53
  54 pub const tag_index_table: usize = 0x2e;
  55
  56 pub const tag_meta_item_name_value: usize = 0x2f;
  57
  58 pub const tag_meta_item_name: usize = 0x30;
  59
  60 pub const tag_meta_item_value: usize = 0x31;
  61
  62 pub const tag_attributes: usize = 0x101; // top-level only
  63
  64 pub const tag_attribute: usize = 0x32;
  65
  66 pub const tag_meta_item_word: usize = 0x33;
  67
  68 pub const tag_meta_item_list: usize = 0x34;
  69
  70 // The list of crates that this crate depends on
  71 pub const tag_crate_deps: usize = 0x102; // top-level only
  72
  73 // A single crate dependency
  74 pub const tag_crate_dep: usize = 0x35;
  75
  76 pub const tag_crate_hash: usize = 0x103; // top-level only
  77 pub const tag_crate_crate_name: usize = 0x104; // top-level only
  78
  79 pub const tag_crate_dep_crate_name: usize = 0x36;
  80 pub const tag_crate_dep_hash: usize = 0x37;
  81
  82 pub const tag_mod_impl: usize = 0x38;
  83
  84 pub const tag_item_trait_item: usize = 0x39;
  85
  86 pub const tag_item_trait_ref: usize = 0x3a;
  87
  88 // discriminator value for variants
  89 pub const tag_disr_val: usize = 0x3c;
  90
  91 // used to encode ast_map::PathElem
  92 pub const tag_path: usize = 0x3d;
  93 pub const tag_path_len: usize = 0x3e;
  94 pub const tag_path_elem_mod: usize = 0x3f;
  95 pub const tag_path_elem_name: usize = 0x40;
  96 pub const tag_item_field: usize = 0x41;
  97 pub const tag_item_field_origin: usize = 0x42;
  98
  99 pub const tag_item_variances: usize = 0x43;
 100 /*
 101   trait items contain tag_item_trait_item elements,
 102   impl items contain tag_item_impl_item elements, and classes
 103   have both. That's because some code treats classes like traits,
 104   and other code treats them like impls. Because classes can contain
 105   both, tag_item_trait_item and tag_item_impl_item have to be two
 106   different tags.
 107  */
 108 pub const tag_item_impl_item: usize = 0x44;
 109 pub const tag_item_trait_method_explicit_self: usize = 0x45;
 110
 111
 112 // Reexports are found within module tags. Each reexport contains def_ids
 113 // and names.
 114 pub const tag_items_data_item_reexport: usize = 0x46;
 115 pub const tag_items_data_item_reexport_def_id: usize = 0x47;
 116 pub const tag_items_data_item_reexport_name: usize = 0x48;
 117
 118 // used to encode crate_ctxt side tables
 119 enum_from_u32! {
 120     #[derive(Copy, Clone, PartialEq)]
 121     #[repr(usize)]
 122     pub enum astencode_tag { // Reserves 0x50 -- 0x6f
 123         tag_ast = 0x50,
 124
 125         tag_tree = 0x51,
 126
 127         tag_id_range = 0x52,
 128
 129         tag_table = 0x53,
 130         // GAP 0x54, 0x55
 131         tag_table_def = 0x56,
 132         tag_table_node_type = 0x57,
 133         tag_table_item_subst = 0x58,
 134         tag_table_freevars = 0x59,
 135         tag_table_tcache = 0x5a,
 136         tag_table_param_defs = 0x5b,
 137         tag_table_mutbl = 0x5c,
 138         tag_table_last_use = 0x5d,
 139         tag_table_spill = 0x5e,
 140         tag_table_method_map = 0x5f,
 141         tag_table_vtable_map = 0x60,
 142         tag_table_adjustments = 0x61,
 143         tag_table_moves_map = 0x62,
 144         tag_table_capture_map = 0x63,
 145         tag_table_closure_tys = 0x64,
 146         tag_table_closure_kinds = 0x65,
 147         tag_table_upvar_capture_map = 0x66,
 148         tag_table_capture_modes = 0x67,
 149         tag_table_object_cast_map = 0x68,
 150         tag_table_const_qualif = 0x69,
 151     }
 152 }
 153
 154 pub const tag_item_trait_item_sort: usize = 0x70;
 155
 156 pub const tag_item_trait_parent_sort: usize = 0x71;
 157
 158 pub const tag_item_impl_type_basename: usize = 0x72;
 159
 160 pub const tag_crate_triple: usize = 0x105; // top-level only
 161
 162 pub const tag_dylib_dependency_formats: usize = 0x106; // top-level only
 163
 164 // Language items are a top-level directory (for speed). Hierarchy:
 165 //
 166 // tag_lang_items
 167 // - tag_lang_items_item
 168 //   - tag_lang_items_item_id: u32
 169 //   - tag_lang_items_item_node_id: u32
 170
 171 pub const tag_lang_items: usize = 0x107; // top-level only
 172 pub const tag_lang_items_item: usize = 0x73;
 173 pub const tag_lang_items_item_id: usize = 0x74;
 174 pub const tag_lang_items_item_node_id: usize = 0x75;
 175 pub const tag_lang_items_missing: usize = 0x76;
 176
 177 pub const tag_item_unnamed_field: usize = 0x77;
 178 pub const tag_items_data_item_visibility: usize = 0x78;
 179
 180 pub const tag_item_method_tps: usize = 0x79;
 181 pub const tag_item_method_fty: usize = 0x7a;
 182
 183 pub const tag_mod_child: usize = 0x7b;
 184 pub const tag_misc_info: usize = 0x108; // top-level only
 185 pub const tag_misc_info_crate_items: usize = 0x7c;
 186
 187 pub const tag_item_method_provided_source: usize = 0x7d;
 188 pub const tag_item_impl_vtables: usize = 0x7e;
 189
 190 pub const tag_impls: usize = 0x109; // top-level only
 191 pub const tag_impls_impl: usize = 0x7f;
 192 pub const tag_impls_impl_trait_def_id: usize = 0x8d;
 193
 194 pub const tag_items_data_item_inherent_impl: usize = 0x80;
 195 pub const tag_items_data_item_extension_impl: usize = 0x81;
 196
 197 pub const tag_native_libraries: usize = 0x10a; // top-level only
 198 pub const tag_native_libraries_lib: usize = 0x82;
 199 pub const tag_native_libraries_name: usize = 0x83;
 200 pub const tag_native_libraries_kind: usize = 0x84;
 201
 202 pub const tag_plugin_registrar_fn: usize = 0x10b; // top-level only
 203
 204 pub const tag_method_argument_names: usize = 0x85;
 205 pub const tag_method_argument_name: usize = 0x86;
 206
 207 pub const tag_reachable_extern_fns: usize = 0x10c; // top-level only
 208 pub const tag_reachable_extern_fn_id: usize = 0x87;
 209
 210 pub const tag_items_data_item_stability: usize = 0x88;
 211
 212 pub const tag_items_data_item_repr: usize = 0x89;
 213
 214 #[derive(Clone, Debug)]
 215 pub struct LinkMeta {
 216     pub crate_name: String,
 217     pub crate_hash: Svh,
 218 }
 219
 220 pub const tag_struct_fields: usize = 0x10d; // top-level only
 221 pub const tag_struct_field: usize = 0x8a;
 222 pub const tag_struct_field_id: usize = 0x8b;
 223
 224 pub const tag_attribute_is_sugared_doc: usize = 0x8c;
 225
 226 pub const tag_items_data_region: usize = 0x8e;
 227
 228 pub const tag_region_param_def: usize = 0x8f;
 229 pub const tag_region_param_def_ident: usize = 0x90;
 230 pub const tag_region_param_def_def_id: usize = 0x91;
 231 pub const tag_region_param_def_space: usize = 0x92;
 232 pub const tag_region_param_def_index: usize = 0x93;
 233
 234 pub const tag_type_param_def: usize = 0x94;
 235
 236 pub const tag_item_generics: usize = 0x95;
 237 pub const tag_method_ty_generics: usize = 0x96;
 238
 239 pub const tag_predicate: usize = 0x97;
 240 pub const tag_predicate_space: usize = 0x98;
 241 pub const tag_predicate_data: usize = 0x99;
 242
 243 pub const tag_unsafety: usize = 0x9a;
 244
 245 pub const tag_associated_type_names: usize = 0x9b;
 246 pub const tag_associated_type_name: usize = 0x9c;
 247
 248 pub const tag_polarity: usize = 0x9d;
 249
 250 pub const tag_macro_defs: usize = 0x10e; // top-level only
 251 pub const tag_macro_def: usize = 0x9e;
 252 pub const tag_macro_def_body: usize = 0x9f;
 253
 254 pub const tag_paren_sugar: usize = 0xa0;
 255
 256 pub const tag_codemap: usize = 0xa1;
 257 pub const tag_codemap_filemap: usize = 0xa2;
 258
 259 pub const tag_item_super_predicates: usize = 0xa3;
 260
 261 pub const tag_defaulted_trait: usize = 0xa4;
 262
 263 pub const tag_impl_coerce_unsized_kind: usize = 0xa5;