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librustc: De-@mut the monomorphizing field in CrateContext

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This commit is contained in:
Patrick Walton 2013-12-18 16:38:25 -08:00
parent b5218ba6ad
commit d3f58c59e4
2 changed files with 22 additions and 13 deletions
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4
src/librustc/middle/trans/context.rs
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@ -70,7 +70,7 @@ pub struct CrateContext {
non_inlineable_statics: HashSet<ast::NodeId>,
// Cache instances of monomorphized functions
monomorphized: RefCell<HashMap<mono_id, ValueRef>>,
monomorphizing: HashMap<ast::DefId, uint>,
monomorphizing: RefCell<HashMap<ast::DefId, uint>>,
// Cache generated vtables
vtables: HashMap<(ty::t, mono_id), ValueRef>,
// Cache of constant strings,
@ -201,7 +201,7 @@ impl CrateContext {
external_srcs: HashMap::new(),
non_inlineable_statics: HashSet::new(),
monomorphized: RefCell::new(HashMap::new()),
monomorphizing: HashMap::new(),
monomorphizing: RefCell::new(HashMap::new()),
vtables: HashMap::new(),
const_cstr_cache: HashMap::new(),
const_globals: HashMap::new(),

31
src/librustc/middle/trans/monomorphize.rs
View File

@ -184,17 +184,22 @@ pub fn monomorphic_fn(ccx: @mut CrateContext,
ccx.stats.n_monos += 1;
let depth = match ccx.monomorphizing.find(&fn_id) {
Some(&d) => d, None => 0
};
// Random cut-off -- code that needs to instantiate the same function
// recursively more than thirty times can probably safely be assumed to be
// causing an infinite expansion.
if depth > 30 {
ccx.sess.span_fatal(
span, "overly deep expansion of inlined function");
let depth;
{
let mut monomorphizing = ccx.monomorphizing.borrow_mut();
depth = match monomorphizing.get().find(&fn_id) {
Some(&d) => d, None => 0
};
// Random cut-off -- code that needs to instantiate the same function
// recursively more than thirty times can probably safely be assumed
// to be causing an infinite expansion.
if depth > 30 {
ccx.sess.span_fatal(
span, "overly deep expansion of inlined function");
}
monomorphizing.get().insert(fn_id, depth + 1);
}
ccx.monomorphizing.insert(fn_id, depth + 1);
let (_, elt) = gensym_name(ccx.sess.str_of(name));
let mut pt = (*pt).clone();
@ -292,7 +297,11 @@ pub fn monomorphic_fn(ccx: @mut CrateContext,
ccx.tcx.sess.bug(format!("Can't monomorphize a {:?}", map_node))
}
};
ccx.monomorphizing.insert(fn_id, depth);
{
let mut monomorphizing = ccx.monomorphizing.borrow_mut();
monomorphizing.get().insert(fn_id, depth);
}
debug!("leaving monomorphic fn {}", ty::item_path_str(ccx.tcx, fn_id));
(lldecl, must_cast)