diff options
| -rw-r--r-- | src/librustc/metadata/creader.rs | 119 | ||||
| -rw-r--r-- | src/librustc/metadata/cstore.rs | 12 |
2 files changed, 61 insertions, 70 deletions
diff --git a/src/librustc/metadata/creader.rs b/src/librustc/metadata/creader.rs index 8ce4a2f8eed..9c0c73288eb 100644 --- a/src/librustc/metadata/creader.rs +++ b/src/librustc/metadata/creader.rs @@ -18,6 +18,7 @@ use driver::{driver, session}; use driver::session::Session; use metadata::csearch; use metadata::cstore; +use metadata::cstore::CStore; use metadata::decoder; use metadata::loader; use metadata::loader::Os; @@ -38,6 +39,13 @@ use syntax::parse::token; use syntax::crateid::CrateId; use syntax::visit; +struct Env<'a> { + sess: &'a Session, + os: loader::Os, + next_crate_num: ast::CrateNum, + intr: Rc<IdentInterner> +} + // Traverses an AST, reading all the information about use'd crates and extern // libraries necessary for later resolving, typechecking, linking, etc. pub fn read_crates(sess: &Session, @@ -47,16 +55,13 @@ pub fn read_crates(sess: &Session, let mut e = Env { sess: sess, os: os, - crate_cache: @RefCell::new(Vec::new()), - next_crate_num: 1, + next_crate_num: sess.cstore.next_crate_num(), intr: intr }; visit_crate(&e, krate); visit::walk_crate(&mut e, krate, ()); - dump_crates(e.crate_cache.borrow().as_slice()); - warn_if_multiple_versions(&mut e, - sess.diagnostic(), - e.crate_cache.borrow().as_slice()); + dump_crates(&sess.cstore); + warn_if_multiple_versions(sess.diagnostic(), &sess.cstore) } impl<'a> visit::Visitor<()> for Env<'a> { @@ -70,55 +75,36 @@ impl<'a> visit::Visitor<()> for Env<'a> { } } -#[deriving(Clone)] -struct cache_entry { - cnum: ast::CrateNum, - span: Span, - hash: Svh, - crate_id: CrateId, -} - -fn dump_crates(crate_cache: &[cache_entry]) { +fn dump_crates(cstore: &CStore) { debug!("resolved crates:"); - for entry in crate_cache.iter() { - debug!("cnum: {:?}", entry.cnum); - debug!("span: {:?}", entry.span); - debug!("hash: {:?}", entry.hash); - } + cstore.iter_crate_data(|_, data| { + debug!("crate_id: {}", data.crate_id()); + debug!(" cnum: {}", data.cnum); + debug!(" hash: {}", data.hash()); + }) } -fn warn_if_multiple_versions(e: &mut Env, - diag: &SpanHandler, - crate_cache: &[cache_entry]) { - if crate_cache.len() != 0u { - let name = crate_cache[crate_cache.len() - 1].crate_id.name.clone(); - - let (matches, non_matches) = crate_cache.partitioned(|entry| - name == entry.crate_id.name); +fn warn_if_multiple_versions(diag: &SpanHandler, cstore: &CStore) { + let mut map = HashMap::new(); - assert!(!matches.is_empty()); + cstore.iter_crate_data(|cnum, data| { + let crateid = data.crate_id(); + let key = (crateid.name.clone(), crateid.path.clone()); + map.find_or_insert_with(key, |_| Vec::new()).push(cnum); + }); - if matches.len() != 1u { - diag.handler().warn( - format!("using multiple versions of crate `{}`", name)); - for match_ in matches.iter() { - diag.span_note(match_.span, "used here"); - loader::note_crateid_attr(diag, &match_.crate_id); - } + for ((name, _), dupes) in map.move_iter() { + if dupes.len() == 1 { continue } + diag.handler().warn( + format!("using multiple versions of crate `{}`", name)); + for dupe in dupes.move_iter() { + let data = cstore.get_crate_data(dupe); + diag.span_note(data.span, "used here"); + loader::note_crateid_attr(diag, &data.crate_id()); } - - warn_if_multiple_versions(e, diag, non_matches); } } -struct Env<'a> { - sess: &'a Session, - os: loader::Os, - crate_cache: @RefCell<Vec<cache_entry>>, - next_crate_num: ast::CrateNum, - intr: Rc<IdentInterner> -} - fn visit_crate(e: &Env, c: &ast::Crate) { for a in c.attrs.iter().filter(|m| m.name().equiv(&("link_args"))) { match a.value_str() { @@ -269,14 +255,18 @@ fn visit_item(e: &Env, i: &ast::Item) { fn existing_match(e: &Env, crate_id: &CrateId, hash: Option<&Svh>) -> Option<ast::CrateNum> { - for c in e.crate_cache.borrow().iter() { - if !crate_id.matches(&c.crate_id) { continue } - match hash { - Some(hash) if *hash != c.hash => {} - Some(..) | None => return Some(c.cnum) + let mut ret = None; + e.sess.cstore.iter_crate_data(|cnum, data| { + let other_id = data.crate_id(); + if crate_id.matches(&other_id) { + let other_hash = data.hash(); + match hash { + Some(hash) if *hash != other_hash => {} + Some(..) | None => { ret = Some(cnum); } + } } - } - None + }); + return ret; } fn resolve_crate<'a>(e: &mut Env, @@ -304,17 +294,8 @@ fn resolve_crate<'a>(e: &mut Env, dylib, rlib, metadata } = load_ctxt.load_library_crate(root); - let crate_id = decoder::get_crate_id(metadata.as_slice()); - let hash = decoder::get_crate_hash(metadata.as_slice()); - // Claim this crate number and cache it let cnum = e.next_crate_num; - e.crate_cache.borrow_mut().push(cache_entry { - cnum: cnum, - span: span, - hash: hash, - crate_id: crate_id, - }); e.next_crate_num += 1; // Stash paths for top-most crate locally if necessary. @@ -331,16 +312,15 @@ fn resolve_crate<'a>(e: &mut Env, let root = if root.is_some() { root } else { &crate_paths }; // Now resolve the crates referenced by this crate - let cnum_map = resolve_crate_deps(e, - root, - metadata.as_slice(), - span); + let cnum_map = resolve_crate_deps(e, root, metadata.as_slice(), + span); let cmeta = @cstore::crate_metadata { name: load_ctxt.crate_id.name.to_owned(), data: metadata, cnum_map: cnum_map, - cnum: cnum + cnum: cnum, + span: span, }; e.sess.cstore.set_crate_data(cnum, cmeta); @@ -390,8 +370,7 @@ impl<'a> Loader<'a> { env: Env { sess: sess, os: os, - crate_cache: @RefCell::new(Vec::new()), - next_crate_num: 1, + next_crate_num: sess.cstore.next_crate_num(), intr: token::get_ident_interner(), } } @@ -406,7 +385,7 @@ impl<'a> CrateLoader for Loader<'a> { let library = self.env.sess.cstore.get_used_crate_source(cnum).unwrap(); MacroCrate { lib: library.dylib, - cnum: cnum + cnum: cnum, } } diff --git a/src/librustc/metadata/cstore.rs b/src/librustc/metadata/cstore.rs index e3a3239bdb5..2d46f92e88f 100644 --- a/src/librustc/metadata/cstore.rs +++ b/src/librustc/metadata/cstore.rs @@ -22,6 +22,8 @@ use std::c_vec::CVec; use std::rc::Rc; use collections::HashMap; use syntax::ast; +use syntax::crateid::CrateId; +use syntax::codemap::Span; use syntax::parse::token::IdentInterner; // A map from external crate numbers (as decoded from some crate file) to @@ -40,6 +42,7 @@ pub struct crate_metadata { pub data: MetadataBlob, pub cnum_map: cnum_map, pub cnum: ast::CrateNum, + pub span: Span, } #[deriving(Eq)] @@ -88,6 +91,10 @@ impl CStore { } } + pub fn next_crate_num(&self) -> ast::CrateNum { + self.metas.borrow().len() as ast::CrateNum + 1 + } + pub fn get_crate_data(&self, cnum: ast::CrateNum) -> @crate_metadata { *self.metas.borrow().get(&cnum) } @@ -121,6 +128,9 @@ impl CStore { .map(|source| source.clone()) } + pub fn dump_phase_syntax_crates(&self) { + } + pub fn reset(&self) { self.metas.borrow_mut().clear(); self.extern_mod_crate_map.borrow_mut().clear(); @@ -202,6 +212,8 @@ impl CStore { impl crate_metadata { pub fn data<'a>(&'a self) -> &'a [u8] { self.data.as_slice() } + pub fn crate_id(&self) -> CrateId { decoder::get_crate_id(self.data()) } + pub fn hash(&self) -> Svh { decoder::get_crate_hash(self.data()) } } impl MetadataBlob { |