// Clang sets this parameter to the opening brace of the function's block, so let's do this too.
let scope_line = span_start(cx, top_level_block.span).line;
+
+ // The is_local_to_unit flag indicates whether a function is local to the current compilation
+ // unit (i.e. if it is *static* in the C-sense). The *reachable* set should provide a good
+ // approximation of this, as it contains everything that might leak out of the current crate
+ // (by being externally visible or by being inlined into something externally visible). It might
+ // better to use the `exported_items` set from `driver::CrateAnalysis` in the future, but (atm)
+ // this set is not available in the translation pass.
let is_local_to_unit = !cx.reachable.contains(&fn_ast_id);
let fn_metadata = function_name.with_c_str(|function_name| {