diff --git a/src/librustc/middle/borrowck/gather_loans/mod.rs b/src/librustc/middle/borrowck/gather_loans/mod.rs index 6c927794dc811..b5523c2ca5d16 100644 --- a/src/librustc/middle/borrowck/gather_loans/mod.rs +++ b/src/librustc/middle/borrowck/gather_loans/mod.rs @@ -230,12 +230,15 @@ fn gather_loans_in_expr(this: &mut GatherLoanCtxt, // make sure that the thing we are pointing out stays valid // for the lifetime `scope_r` of the resulting ptr: - let scope_r = ty_region(tcx, ex.span, ty::expr_ty(tcx, ex)); - this.guarantee_valid(ex.id, - ex.span, - base_cmt, - LoanMutability::from_ast_mutability(mutbl), - scope_r); + let expr_ty = ty::expr_ty(tcx, ex); + if !ty::type_is_bot(expr_ty) { + let scope_r = ty_region(tcx, ex.span, expr_ty); + this.guarantee_valid(ex.id, + ex.span, + base_cmt, + LoanMutability::from_ast_mutability(mutbl), + scope_r); + } visit::walk_expr(this, ex, ()); } diff --git a/src/test/run-fail/addr-of-bot.rs b/src/test/run-fail/addr-of-bot.rs new file mode 100644 index 0000000000000..45dbe11c76e82 --- /dev/null +++ b/src/test/run-fail/addr-of-bot.rs @@ -0,0 +1,15 @@ +// Copyright 2013 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// error-pattern:explicit failure + +fn main() { + &fail!() +}