//! are *mostly* used as a part of that interface, but these should
//! probably get a better home if someone can find one.
+use hir;
use hir::def;
-use hir::def_id::{CrateNum, DefId, DefIndex};
+use hir::def_id::{CrateNum, DefId, DefIndex, LOCAL_CRATE};
use hir::map as hir_map;
use hir::map::definitions::{Definitions, DefKey, DefPathTable};
use hir::svh::Svh;
use ich;
-use middle::lang_items;
use ty::{self, TyCtxt};
use session::Session;
use session::search_paths::PathKind;
-use util::nodemap::{NodeSet, DefIdMap};
+use util::nodemap::NodeSet;
use std::any::Any;
+use std::collections::BTreeMap;
use std::path::{Path, PathBuf};
use std::rc::Rc;
use owning_ref::ErasedBoxRef;
use syntax::symbol::Symbol;
use syntax_pos::Span;
use rustc_back::target::Target;
-use hir;
-use rustc_back::PanicStrategy;
pub use self::NativeLibraryKind::*;
pub kind: NativeLibraryKind,
pub name: Symbol,
pub cfg: Option<ast::MetaItem>,
- pub foreign_items: Vec<DefIndex>,
+ pub foreign_items: Vec<DefId>,
}
pub enum LoadedMacro {
-> Result<ErasedBoxRef<[u8]>, String>;
}
+#[derive(Clone)]
+pub struct ExternConstBody<'tcx> {
+ pub body: &'tcx hir::Body,
+
+ // It would require a lot of infrastructure to enable stable-hashing Bodies
+ // from other crates, so we hash on export and just store the fingerprint
+ // with them.
+ pub fingerprint: ich::Fingerprint,
+}
+
+#[derive(Clone)]
+pub struct ExternBodyNestedBodies {
+ pub nested_bodies: Rc<BTreeMap<hir::BodyId, hir::Body>>,
+
+ // It would require a lot of infrastructure to enable stable-hashing Bodies
+ // from other crates, so we hash on export and just store the fingerprint
+ // with them.
+ pub fingerprint: ich::Fingerprint,
+}
+
/// A store of Rust crates, through with their metadata
/// can be accessed.
+///
+/// Note that this trait should probably not be expanding today. All new
+/// functionality should be driven through queries instead!
+///
+/// If you find a method on this trait named `{name}_untracked` it signifies
+/// that it's *not* tracked for dependency information throughout compilation
+/// (it'd break incremental compilation) and should only be called pre-HIR (e.g.
+/// during resolve)
pub trait CrateStore {
fn crate_data_as_rc_any(&self, krate: CrateNum) -> Rc<Any>;
// access to the metadata loader
fn metadata_loader(&self) -> &MetadataLoader;
- // item info
- fn visibility(&self, def: DefId) -> ty::Visibility;
- fn visible_parent_map<'a>(&'a self, sess: &Session) -> ::std::cell::Ref<'a, DefIdMap<DefId>>;
- fn item_generics_cloned(&self, def: DefId) -> ty::Generics;
-
- // trait info
- fn implementations_of_trait(&self, filter: Option<DefId>) -> Vec<DefId>;
-
- // impl info
- fn impl_defaultness(&self, def: DefId) -> hir::Defaultness;
-
- // trait/impl-item info
- fn associated_item_cloned(&self, def: DefId) -> ty::AssociatedItem;
-
- // flags
- fn is_dllimport_foreign_item(&self, def: DefId) -> bool;
- fn is_statically_included_foreign_item(&self, def_id: DefId) -> bool;
-
- // crate metadata
- fn dep_kind(&self, cnum: CrateNum) -> DepKind;
- fn export_macros(&self, cnum: CrateNum);
- fn lang_items(&self, cnum: CrateNum) -> Vec<(DefIndex, usize)>;
- fn missing_lang_items(&self, cnum: CrateNum) -> Vec<lang_items::LangItem>;
- fn is_compiler_builtins(&self, cnum: CrateNum) -> bool;
- fn is_sanitizer_runtime(&self, cnum: CrateNum) -> bool;
- fn is_profiler_runtime(&self, cnum: CrateNum) -> bool;
- fn panic_strategy(&self, cnum: CrateNum) -> PanicStrategy;
- /// The name of the crate as it is referred to in source code of the current
- /// crate.
- fn crate_name(&self, cnum: CrateNum) -> Symbol;
- /// The name of the crate as it is stored in the crate's metadata.
- fn original_crate_name(&self, cnum: CrateNum) -> Symbol;
- fn crate_hash(&self, cnum: CrateNum) -> Svh;
- fn crate_disambiguator(&self, cnum: CrateNum) -> Symbol;
- fn plugin_registrar_fn(&self, cnum: CrateNum) -> Option<DefId>;
- fn derive_registrar_fn(&self, cnum: CrateNum) -> Option<DefId>;
- fn native_libraries(&self, cnum: CrateNum) -> Vec<NativeLibrary>;
- fn exported_symbols(&self, cnum: CrateNum) -> Vec<DefId>;
- fn is_no_builtins(&self, cnum: CrateNum) -> bool;
-
// resolve
fn def_key(&self, def: DefId) -> DefKey;
fn def_path(&self, def: DefId) -> hir_map::DefPath;
fn def_path_hash(&self, def: DefId) -> hir_map::DefPathHash;
fn def_path_table(&self, cnum: CrateNum) -> Rc<DefPathTable>;
- fn struct_field_names(&self, def: DefId) -> Vec<ast::Name>;
- fn item_children(&self, did: DefId, sess: &Session) -> Vec<def::Export>;
- fn load_macro(&self, did: DefId, sess: &Session) -> LoadedMacro;
- // misc. metadata
- fn item_body<'a, 'tcx>(&self, tcx: TyCtxt<'a, 'tcx, 'tcx>, def: DefId)
- -> &'tcx hir::Body;
+ // "queries" used in resolve that aren't tracked for incremental compilation
+ fn visibility_untracked(&self, def: DefId) -> ty::Visibility;
+ fn export_macros_untracked(&self, cnum: CrateNum);
+ fn dep_kind_untracked(&self, cnum: CrateNum) -> DepKind;
+ fn crate_name_untracked(&self, cnum: CrateNum) -> Symbol;
+ fn crate_disambiguator_untracked(&self, cnum: CrateNum) -> Symbol;
+ fn crate_hash_untracked(&self, cnum: CrateNum) -> Svh;
+ fn struct_field_names_untracked(&self, def: DefId) -> Vec<ast::Name>;
+ fn item_children_untracked(&self, did: DefId, sess: &Session) -> Vec<def::Export>;
+ fn load_macro_untracked(&self, did: DefId, sess: &Session) -> LoadedMacro;
+ fn extern_mod_stmt_cnum_untracked(&self, emod_id: ast::NodeId) -> Option<CrateNum>;
+ fn item_generics_cloned_untracked(&self, def: DefId) -> ty::Generics;
+ fn associated_item_cloned_untracked(&self, def: DefId) -> ty::AssociatedItem;
+ fn postorder_cnums_untracked(&self) -> Vec<CrateNum>;
// This is basically a 1-based range of ints, which is a little
// silly - I may fix that.
- fn crates(&self) -> Vec<CrateNum>;
- fn used_libraries(&self) -> Vec<NativeLibrary>;
- fn used_link_args(&self) -> Vec<String>;
+ fn crates_untracked(&self) -> Vec<CrateNum>;
// utility functions
- fn used_crates(&self, prefer: LinkagePreference) -> Vec<(CrateNum, LibSource)>;
- fn used_crate_source(&self, cnum: CrateNum) -> CrateSource;
- fn extern_mod_stmt_cnum(&self, emod_id: ast::NodeId) -> Option<CrateNum>;
fn encode_metadata<'a, 'tcx>(&self,
tcx: TyCtxt<'a, 'tcx, 'tcx>,
link_meta: &LinkMeta,
fn crate_data_as_rc_any(&self, krate: CrateNum) -> Rc<Any>
{ bug!("crate_data_as_rc_any") }
// item info
- fn visibility(&self, def: DefId) -> ty::Visibility { bug!("visibility") }
- fn visible_parent_map<'a>(&'a self, session: &Session)
- -> ::std::cell::Ref<'a, DefIdMap<DefId>>
- {
- bug!("visible_parent_map")
- }
- fn item_generics_cloned(&self, def: DefId) -> ty::Generics
+ fn visibility_untracked(&self, def: DefId) -> ty::Visibility { bug!("visibility") }
+ fn item_generics_cloned_untracked(&self, def: DefId) -> ty::Generics
{ bug!("item_generics_cloned") }
- // trait info
- fn implementations_of_trait(&self, filter: Option<DefId>) -> Vec<DefId> { vec![] }
-
- // impl info
- fn impl_defaultness(&self, def: DefId) -> hir::Defaultness { bug!("impl_defaultness") }
-
// trait/impl-item info
- fn associated_item_cloned(&self, def: DefId) -> ty::AssociatedItem
+ fn associated_item_cloned_untracked(&self, def: DefId) -> ty::AssociatedItem
{ bug!("associated_item_cloned") }
- // flags
- fn is_dllimport_foreign_item(&self, id: DefId) -> bool { false }
- fn is_statically_included_foreign_item(&self, def_id: DefId) -> bool { false }
-
// crate metadata
- fn lang_items(&self, cnum: CrateNum) -> Vec<(DefIndex, usize)>
- { bug!("lang_items") }
- fn missing_lang_items(&self, cnum: CrateNum) -> Vec<lang_items::LangItem>
- { bug!("missing_lang_items") }
- fn dep_kind(&self, cnum: CrateNum) -> DepKind { bug!("is_explicitly_linked") }
- fn export_macros(&self, cnum: CrateNum) { bug!("export_macros") }
- fn is_compiler_builtins(&self, cnum: CrateNum) -> bool { bug!("is_compiler_builtins") }
- fn is_profiler_runtime(&self, cnum: CrateNum) -> bool { bug!("is_profiler_runtime") }
- fn is_sanitizer_runtime(&self, cnum: CrateNum) -> bool { bug!("is_sanitizer_runtime") }
- fn panic_strategy(&self, cnum: CrateNum) -> PanicStrategy {
- bug!("panic_strategy")
+ fn dep_kind_untracked(&self, cnum: CrateNum) -> DepKind { bug!("is_explicitly_linked") }
+ fn export_macros_untracked(&self, cnum: CrateNum) { bug!("export_macros") }
+ fn crate_name_untracked(&self, cnum: CrateNum) -> Symbol { bug!("crate_name") }
+ fn crate_disambiguator_untracked(&self, cnum: CrateNum) -> Symbol {
+ bug!("crate_disambiguator")
}
- fn crate_name(&self, cnum: CrateNum) -> Symbol { bug!("crate_name") }
- fn original_crate_name(&self, cnum: CrateNum) -> Symbol {
- bug!("original_crate_name")
- }
- fn crate_hash(&self, cnum: CrateNum) -> Svh { bug!("crate_hash") }
- fn crate_disambiguator(&self, cnum: CrateNum)
- -> Symbol { bug!("crate_disambiguator") }
- fn plugin_registrar_fn(&self, cnum: CrateNum) -> Option<DefId>
- { bug!("plugin_registrar_fn") }
- fn derive_registrar_fn(&self, cnum: CrateNum) -> Option<DefId>
- { bug!("derive_registrar_fn") }
- fn native_libraries(&self, cnum: CrateNum) -> Vec<NativeLibrary>
- { bug!("native_libraries") }
- fn exported_symbols(&self, cnum: CrateNum) -> Vec<DefId> { bug!("exported_symbols") }
- fn is_no_builtins(&self, cnum: CrateNum) -> bool { bug!("is_no_builtins") }
+ fn crate_hash_untracked(&self, cnum: CrateNum) -> Svh { bug!("crate_hash") }
// resolve
fn def_key(&self, def: DefId) -> DefKey { bug!("def_key") }
fn def_path_table(&self, cnum: CrateNum) -> Rc<DefPathTable> {
bug!("def_path_table")
}
- fn struct_field_names(&self, def: DefId) -> Vec<ast::Name> { bug!("struct_field_names") }
- fn item_children(&self, did: DefId, sess: &Session) -> Vec<def::Export> {
- bug!("item_children")
+ fn struct_field_names_untracked(&self, def: DefId) -> Vec<ast::Name> {
+ bug!("struct_field_names")
}
- fn load_macro(&self, did: DefId, sess: &Session) -> LoadedMacro { bug!("load_macro") }
-
- // misc. metadata
- fn item_body<'a, 'tcx>(&self, tcx: TyCtxt<'a, 'tcx, 'tcx>, def: DefId)
- -> &'tcx hir::Body {
- bug!("item_body")
+ fn item_children_untracked(&self, did: DefId, sess: &Session) -> Vec<def::Export> {
+ bug!("item_children")
}
+ fn load_macro_untracked(&self, did: DefId, sess: &Session) -> LoadedMacro { bug!("load_macro") }
- // This is basically a 1-based range of ints, which is a little
- // silly - I may fix that.
- fn crates(&self) -> Vec<CrateNum> { vec![] }
- fn used_libraries(&self) -> Vec<NativeLibrary> { vec![] }
- fn used_link_args(&self) -> Vec<String> { vec![] }
+ fn crates_untracked(&self) -> Vec<CrateNum> { vec![] }
// utility functions
- fn used_crates(&self, prefer: LinkagePreference) -> Vec<(CrateNum, LibSource)>
- { vec![] }
- fn used_crate_source(&self, cnum: CrateNum) -> CrateSource { bug!("used_crate_source") }
- fn extern_mod_stmt_cnum(&self, emod_id: ast::NodeId) -> Option<CrateNum> { None }
+ fn extern_mod_stmt_cnum_untracked(&self, emod_id: ast::NodeId) -> Option<CrateNum> { None }
fn encode_metadata<'a, 'tcx>(&self,
tcx: TyCtxt<'a, 'tcx, 'tcx>,
link_meta: &LinkMeta,
bug!("encode_metadata")
}
fn metadata_encoding_version(&self) -> &[u8] { bug!("metadata_encoding_version") }
+ fn postorder_cnums_untracked(&self) -> Vec<CrateNum> { bug!("postorder_cnums_untracked") }
// access to the metadata loader
fn metadata_loader(&self) -> &MetadataLoader { bug!("metadata_loader") }
fn process_item(&mut self, item: &ast::Item, defs: &Definitions);
fn postprocess(&mut self, krate: &ast::Crate);
}
+
+// This method is used when generating the command line to pass through to
+// system linker. The linker expects undefined symbols on the left of the
+// command line to be defined in libraries on the right, not the other way
+// around. For more info, see some comments in the add_used_library function
+// below.
+//
+// In order to get this left-to-right dependency ordering, we perform a
+// topological sort of all crates putting the leaves at the right-most
+// positions.
+pub fn used_crates(tcx: TyCtxt, prefer: LinkagePreference)
+ -> Vec<(CrateNum, LibSource)>
+{
+ let mut libs = tcx.crates()
+ .iter()
+ .cloned()
+ .filter_map(|cnum| {
+ if tcx.dep_kind(cnum).macros_only() {
+ return None
+ }
+ let source = tcx.used_crate_source(cnum);
+ let path = match prefer {
+ LinkagePreference::RequireDynamic => source.dylib.clone().map(|p| p.0),
+ LinkagePreference::RequireStatic => source.rlib.clone().map(|p| p.0),
+ };
+ let path = match path {
+ Some(p) => LibSource::Some(p),
+ None => {
+ if source.rmeta.is_some() {
+ LibSource::MetadataOnly
+ } else {
+ LibSource::None
+ }
+ }
+ };
+ Some((cnum, path))
+ })
+ .collect::<Vec<_>>();
+ let mut ordering = tcx.postorder_cnums(LOCAL_CRATE);
+ Rc::make_mut(&mut ordering).reverse();
+ libs.sort_by_key(|&(a, _)| {
+ ordering.iter().position(|x| *x == a)
+ });
+ libs
+}
projects / rustc.git / blobdiff