diff --git a/src/librustc/middle/expr_use_visitor.rs b/src/librustc/middle/expr_use_visitor.rs index 9018b9fe590b2..3bcde93fde502 100644 --- a/src/librustc/middle/expr_use_visitor.rs +++ b/src/librustc/middle/expr_use_visitor.rs @@ -558,24 +558,29 @@ impl<'a, 'gcx, 'tcx> ExprUseVisitor<'a, 'gcx, 'tcx> { } ty::TyError => { } _ => { - let def_id = self.mc.tables.type_dependent_defs()[call.hir_id].def_id(); - let call_scope = region::Scope::Node(call.hir_id.local_id); - match OverloadedCallType::from_method_id(self.tcx(), def_id) { - FnMutOverloadedCall => { - let call_scope_r = self.tcx().mk_region(ty::ReScope(call_scope)); - self.borrow_expr(callee, - call_scope_r, - ty::MutBorrow, - ClosureInvocation); - } - FnOverloadedCall => { - let call_scope_r = self.tcx().mk_region(ty::ReScope(call_scope)); - self.borrow_expr(callee, - call_scope_r, - ty::ImmBorrow, - ClosureInvocation); + if let Some(def) = self.mc.tables.type_dependent_defs().get(call.hir_id) { + let def_id = def.def_id(); + let call_scope = region::Scope::Node(call.hir_id.local_id); + match OverloadedCallType::from_method_id(self.tcx(), def_id) { + FnMutOverloadedCall => { + let call_scope_r = self.tcx().mk_region(ty::ReScope(call_scope)); + self.borrow_expr(callee, + call_scope_r, + ty::MutBorrow, + ClosureInvocation); + } + FnOverloadedCall => { + let call_scope_r = self.tcx().mk_region(ty::ReScope(call_scope)); + self.borrow_expr(callee, + call_scope_r, + ty::ImmBorrow, + ClosureInvocation); + } + FnOnceOverloadedCall => self.consume_expr(callee), } - FnOnceOverloadedCall => self.consume_expr(callee), + } else { + self.tcx().sess.delay_span_bug(call.span, + "no type-dependent def for overloaded call"); } } } diff --git a/src/test/compile-fail/issue-46771.rs b/src/test/compile-fail/issue-46771.rs new file mode 100644 index 0000000000000..f8bcd8861f3a6 --- /dev/null +++ b/src/test/compile-fail/issue-46771.rs @@ -0,0 +1,14 @@ +// Copyright 2017 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. + +fn main() { + struct Foo; + (1 .. 2).find(|_| Foo(0) == 0); //~ ERROR expected function, found `main::Foo` +}