Auto merge of #27338 - alexcrichton:remove-morestack, r=brson

[rust.git] / src / librustc_typeck / astconv.rs

diff --git a/src/librustc_typeck/astconv.rs b/src/librustc_typeck/astconv.rs
index 3f936e40d4cab1e7f88dd7b9bfe2e189aeb01dba..99f375c32868e295398c9b453ebc7b507ae569fe 100644 (file)
--- a/src/librustc_typeck/astconv.rs
+++ b/src/librustc_typeck/astconv.rs
@@ -69,6 +69,7 @@
 use std::slice;
 use syntax::{abi, ast, ast_util};
 use syntax::codemap::{Span, Pos};
+use syntax::feature_gate::emit_feature_err;
 use syntax::parse::token;
 use syntax::print::pprust;
 
@@ -791,12 +792,11 @@ fn create_substs_for_ast_trait_ref<'a,'tcx>(this: &AstConv<'tcx>,
             // For now, require that parenthetical notation be used
             // only with `Fn()` etc.
             if !this.tcx().sess.features.borrow().unboxed_closures && trait_def.paren_sugar {
-                span_err!(this.tcx().sess, span, E0215,
-                                         "angle-bracket notation is not stable when \
-                                         used with the `Fn` family of traits, use parentheses");
-                fileline_help!(this.tcx().sess, span,
-                           "add `#![feature(unboxed_closures)]` to \
-                            the crate attributes to enable");
+                emit_feature_err(&this.tcx().sess.parse_sess.span_diagnostic,
+                                 "unboxed_closures", span,
+                                 "\
+                    the precise format of `Fn`-family traits' type parameters is \
+                    subject to change. Use parenthetical notation (Fn(Foo, Bar) -> Baz) instead");
             }
 
             convert_angle_bracketed_parameters(this, rscope, span, &trait_def.generics, data)
@@ -805,12 +805,10 @@ fn create_substs_for_ast_trait_ref<'a,'tcx>(this: &AstConv<'tcx>,
             // For now, require that parenthetical notation be used
             // only with `Fn()` etc.
             if !this.tcx().sess.features.borrow().unboxed_closures && !trait_def.paren_sugar {
-                span_err!(this.tcx().sess, span, E0216,
-                                         "parenthetical notation is only stable when \
-                                         used with the `Fn` family of traits");
-                fileline_help!(this.tcx().sess, span,
-                           "add `#![feature(unboxed_closures)]` to \
-                            the crate attributes to enable");
+                emit_feature_err(&this.tcx().sess.parse_sess.span_diagnostic,
+                                 "unboxed_closures", span,
+                                 "\
+                    parenthetical notation is only stable when used with `Fn`-family traits");
             }
 
             convert_parenthesized_parameters(this, rscope, span, &trait_def.generics, data)
@@ -1664,6 +1662,9 @@ pub fn ast_ty_to_ty<'tcx>(this: &AstConv<'tcx>,
             // handled specially and will not descend into this routine.
             this.ty_infer(None, None, None, ast_ty.span)
         }
+        ast::TyMac(_) => {
+            tcx.sess.span_bug(ast_ty.span, "unexpanded type macro found conversion")
+        }
     };
 
     tcx.ast_ty_to_ty_cache.borrow_mut().insert(ast_ty.id, typ);