From 6461cf30de748fbe310640cd9c195965fc3da229 Mon Sep 17 00:00:00 2001
From: Brian Anderson <andersrb@gmail.com>
Date: Sun, 30 Jan 2011 17:38:46 -0500
Subject: [PATCH] Add compile-fail tests for tail calls

---
 src/Makefile                           |  3 +++
 src/test/compile-fail/tail-non-call.rs | 10 ++++++++++
 src/test/compile-fail/tail-typeck.rs   | 13 +++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 src/test/compile-fail/tail-non-call.rs
 create mode 100644 src/test/compile-fail/tail-typeck.rs

diff --git a/src/Makefile b/src/Makefile
index 5c3f297f788..7a31c24a041 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -434,6 +434,7 @@ TEST_XFAILS_BOOT :=  $(TASK_XFAILS) \
                     test/compile-fail/bad-recv.rs \
                     test/compile-fail/bad-send.rs \
                     test/compile-fail/infinite-vec-type-recursion.rs \
+                    test/compile-fail/tail-non-call.rs \
                     test/compile-fail/writing-through-read-alias.rs
 
 # Same strategy here for the time being: just list the ones that
@@ -555,6 +556,8 @@ TEST_XFAILS_RUSTC := $(filter-out \
                         multiline-comment-line-tracking.rs \
                         output-type-mismatch.rs \
                         rec-missing-fields.rs \
+                        tail-non-call.rs \
+                        tail-typeck.rs \
                         type-shadow.rs \
                         while-type-error.rs \
                         wrong-ret-type.rs \
diff --git a/src/test/compile-fail/tail-non-call.rs b/src/test/compile-fail/tail-non-call.rs
new file mode 100644
index 00000000000..2742d1fe89d
--- /dev/null
+++ b/src/test/compile-fail/tail-non-call.rs
@@ -0,0 +1,10 @@
+// error-pattern: Non-call expression in tail call
+
+fn f() -> int {
+  auto x = 1;
+  be x;
+}
+
+fn main() {
+  auto y = f();
+}
\ No newline at end of file
diff --git a/src/test/compile-fail/tail-typeck.rs b/src/test/compile-fail/tail-typeck.rs
new file mode 100644
index 00000000000..10b95546f22
--- /dev/null
+++ b/src/test/compile-fail/tail-typeck.rs
@@ -0,0 +1,13 @@
+// error-pattern: mismatched types
+
+fn f() -> int {
+  be g();
+}
+
+fn g() -> uint {
+  ret 0u;
+}
+
+fn main() {
+  auto y = f();
+}
\ No newline at end of file