259 lines
8.0 KiB
Rust
259 lines
8.0 KiB
Rust
// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(non_camel_case_types, non_upper_case_globals)]
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pub use self::astencode_tag::*;
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// RBML enum definitions and utils shared by the encoder and decoder
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//
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// 0x00..0x1f: reserved for RBML generic type tags
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// 0x20..0xef: free for use, preferred for frequent tags
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// 0xf0..0xff: internally used by RBML to encode 0x100..0xfff in two bytes
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// 0x100..0xfff: free for use, preferred for infrequent tags
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pub const tag_items: usize = 0x100; // top-level only
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pub const tag_paths_data_name: usize = 0x20;
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pub const tag_def_id: usize = 0x21;
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pub const tag_items_data: usize = 0x22;
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pub const tag_items_data_item: usize = 0x23;
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pub const tag_items_data_item_family: usize = 0x24;
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pub const tag_items_data_item_type: usize = 0x25;
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// GAP 0x26
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pub const tag_items_data_item_variant: usize = 0x27;
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pub const tag_items_data_parent_item: usize = 0x28;
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pub const tag_items_data_item_is_tuple_struct_ctor: usize = 0x29;
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pub const tag_items_closure_kind: usize = 0x2a;
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pub const tag_items_closure_ty: usize = 0x2b;
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pub const tag_def_key: usize = 0x2c;
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// GAP 0x2d 0x2e
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pub const tag_index: usize = 0x110; // top-level only
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pub const tag_xref_index: usize = 0x111; // top-level only
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pub const tag_xref_data: usize = 0x112; // top-level only
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pub const tag_meta_item_name_value: usize = 0x2f;
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pub const tag_meta_item_name: usize = 0x30;
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pub const tag_meta_item_value: usize = 0x31;
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pub const tag_attributes: usize = 0x101; // top-level only
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pub const tag_attribute: usize = 0x32;
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pub const tag_meta_item_word: usize = 0x33;
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pub const tag_meta_item_list: usize = 0x34;
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// The list of crates that this crate depends on
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pub const tag_crate_deps: usize = 0x102; // top-level only
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// A single crate dependency
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pub const tag_crate_dep: usize = 0x35;
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pub const tag_crate_hash: usize = 0x103; // top-level only
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pub const tag_crate_crate_name: usize = 0x104; // top-level only
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pub const tag_crate_disambiguator: usize = 0x113; // top-level only
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pub const tag_crate_dep_crate_name: usize = 0x36;
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pub const tag_crate_dep_hash: usize = 0x37;
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pub const tag_crate_dep_explicitly_linked: usize = 0x38; // top-level only
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pub const tag_item_trait_item: usize = 0x3a;
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pub const tag_item_trait_ref: usize = 0x3b;
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// discriminator value for variants
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pub const tag_disr_val: usize = 0x3c;
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// GAP 0x3d, 0x3e, 0x3f, 0x40
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pub const tag_item_field: usize = 0x41;
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// GAP 0x42
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pub const tag_item_variances: usize = 0x43;
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/*
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trait items contain tag_item_trait_item elements,
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impl items contain tag_item_impl_item elements, and classes
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have both. That's because some code treats classes like traits,
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and other code treats them like impls. Because classes can contain
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both, tag_item_trait_item and tag_item_impl_item have to be two
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different tags.
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*/
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pub const tag_item_impl_item: usize = 0x44;
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pub const tag_item_trait_method_explicit_self: usize = 0x45;
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// Reexports are found within module tags. Each reexport contains def_ids
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// and names.
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pub const tag_items_data_item_reexport: usize = 0x46;
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pub const tag_items_data_item_reexport_def_id: usize = 0x47;
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pub const tag_items_data_item_reexport_name: usize = 0x48;
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// used to encode crate_ctxt side tables
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enum_from_u32! {
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#[derive(Copy, Clone, PartialEq)]
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#[repr(usize)]
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pub enum astencode_tag { // Reserves 0x50 -- 0x6f
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tag_ast = 0x50,
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tag_tree = 0x51,
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tag_mir = 0x52,
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tag_table = 0x53,
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// GAP 0x54, 0x55
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tag_table_def = 0x56,
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tag_table_node_type = 0x57,
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tag_table_item_subst = 0x58,
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tag_table_freevars = 0x59,
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// GAP 0x5a, 0x5b, 0x5c, 0x5d, 0x5e
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tag_table_method_map = 0x5f,
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// GAP 0x60
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tag_table_adjustments = 0x61,
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// GAP 0x62, 0x63, 0x64, 0x65
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tag_table_upvar_capture_map = 0x66,
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// GAP 0x67, 0x68
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tag_table_const_qualif = 0x69,
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tag_table_cast_kinds = 0x6a,
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}
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}
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pub const tag_item_trait_item_sort: usize = 0x70;
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pub const tag_crate_triple: usize = 0x105; // top-level only
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pub const tag_dylib_dependency_formats: usize = 0x106; // top-level only
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// Language items are a top-level directory (for speed). Hierarchy:
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//
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// tag_lang_items
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// - tag_lang_items_item
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// - tag_lang_items_item_id: u32
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// - tag_lang_items_item_index: u32
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pub const tag_lang_items: usize = 0x107; // top-level only
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pub const tag_lang_items_item: usize = 0x73;
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pub const tag_lang_items_item_id: usize = 0x74;
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pub const tag_lang_items_item_index: usize = 0x75;
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pub const tag_lang_items_missing: usize = 0x76;
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pub const tag_item_unnamed_field: usize = 0x77;
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pub const tag_items_data_item_visibility: usize = 0x78;
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pub const tag_items_data_item_inherent_impl: usize = 0x79;
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// GAP 0x7a
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pub const tag_mod_child: usize = 0x7b;
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pub const tag_misc_info: usize = 0x108; // top-level only
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pub const tag_misc_info_crate_items: usize = 0x7c;
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pub const tag_impls: usize = 0x109; // top-level only
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pub const tag_impls_trait: usize = 0x7d;
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pub const tag_impls_trait_impl: usize = 0x7e;
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// GAP 0x7f, 0x80, 0x81
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pub const tag_native_libraries: usize = 0x10a; // top-level only
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pub const tag_native_libraries_lib: usize = 0x82;
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pub const tag_native_libraries_name: usize = 0x83;
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pub const tag_native_libraries_kind: usize = 0x84;
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pub const tag_plugin_registrar_fn: usize = 0x10b; // top-level only
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pub const tag_method_argument_names: usize = 0x85;
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pub const tag_method_argument_name: usize = 0x86;
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pub const tag_reachable_ids: usize = 0x10c; // top-level only
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pub const tag_reachable_id: usize = 0x87;
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pub const tag_items_data_item_stability: usize = 0x88;
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pub const tag_items_data_item_repr: usize = 0x89;
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pub const tag_struct_fields: usize = 0x10d; // top-level only
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pub const tag_struct_field: usize = 0x8a;
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pub const tag_items_data_item_struct_ctor: usize = 0x8b;
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pub const tag_attribute_is_sugared_doc: usize = 0x8c;
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// GAP 0x8d
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pub const tag_items_data_region: usize = 0x8e;
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pub const tag_region_param_def: usize = 0x8f;
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pub const tag_region_param_def_ident: usize = 0x90;
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pub const tag_region_param_def_def_id: usize = 0x91;
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pub const tag_region_param_def_space: usize = 0x92;
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pub const tag_region_param_def_index: usize = 0x93;
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pub const tag_type_param_def: usize = 0x94;
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pub const tag_item_generics: usize = 0x95;
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pub const tag_method_ty_generics: usize = 0x96;
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pub const tag_type_predicate: usize = 0x97;
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pub const tag_self_predicate: usize = 0x98;
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pub const tag_fn_predicate: usize = 0x99;
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pub const tag_unsafety: usize = 0x9a;
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pub const tag_associated_type_names: usize = 0x9b;
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pub const tag_associated_type_name: usize = 0x9c;
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pub const tag_polarity: usize = 0x9d;
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pub const tag_macro_defs: usize = 0x10e; // top-level only
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pub const tag_macro_def: usize = 0x9e;
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pub const tag_macro_def_body: usize = 0x9f;
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pub const tag_macro_def_span_lo: usize = 0xa8;
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pub const tag_macro_def_span_hi: usize = 0xa9;
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pub const tag_paren_sugar: usize = 0xa0;
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pub const tag_codemap: usize = 0xa1;
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pub const tag_codemap_filemap: usize = 0xa2;
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pub const tag_item_super_predicates: usize = 0xa3;
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pub const tag_defaulted_trait: usize = 0xa4;
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pub const tag_impl_coerce_unsized_kind: usize = 0xa5;
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pub const tag_items_data_item_constness: usize = 0xa6;
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pub const tag_items_data_item_deprecation: usize = 0xa7;
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pub const tag_items_data_item_defaultness: usize = 0xa8;
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pub const tag_items_data_parent_impl: usize = 0xa9;
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pub const tag_rustc_version: usize = 0x10f;
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pub fn rustc_version() -> String {
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format!(
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"rustc {}",
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option_env!("CFG_VERSION").unwrap_or("unknown version")
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)
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}
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pub const tag_panic_strategy: usize = 0x114;
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// NB: increment this if you change the format of metadata such that
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// rustc_version can't be found.
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pub const metadata_encoding_version : &'static [u8] = &[b'r', b'u', b's', b't', 0, 0, 0, 2];
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