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-rw-r--r--test/fixedbugs/issue9370.go127
1 files changed, 127 insertions, 0 deletions
diff --git a/test/fixedbugs/issue9370.go b/test/fixedbugs/issue9370.go
new file mode 100644
index 0000000..1a45103
--- /dev/null
+++ b/test/fixedbugs/issue9370.go
@@ -0,0 +1,127 @@
+// errorcheck
+
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Verify that concrete/interface comparisons are
+// typechecked correctly by the compiler.
+
+package main
+
+type I interface {
+ Method()
+}
+
+type C int
+
+func (C) Method() {}
+
+type G func()
+
+func (G) Method() {}
+
+var (
+ e interface{}
+ i I
+ c C
+ n int
+ f func()
+ g G
+)
+
+var (
+ _ = e == c
+ _ = e != c
+ _ = e >= c // ERROR "invalid operation.*not defined|invalid comparison|cannot compare"
+ _ = c == e
+ _ = c != e
+ _ = c >= e // ERROR "invalid operation.*not defined|invalid comparison|cannot compare"
+
+ _ = i == c
+ _ = i != c
+ _ = i >= c // ERROR "invalid operation.*not defined|invalid comparison|cannot compare"
+ _ = c == i
+ _ = c != i
+ _ = c >= i // ERROR "invalid operation.*not defined|invalid comparison|cannot compare"
+
+ _ = e == n
+ _ = e != n
+ _ = e >= n // ERROR "invalid operation.*not defined|invalid comparison|cannot compare"
+ _ = n == e
+ _ = n != e
+ _ = n >= e // ERROR "invalid operation.*not defined|invalid comparison|cannot compare"
+
+ // i and n are not assignable to each other
+ _ = i == n // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = i != n // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = i >= n // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = n == i // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = n != i // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = n >= i // ERROR "invalid operation.*mismatched types|incompatible types"
+
+ _ = e == 1
+ _ = e != 1
+ _ = e >= 1 // ERROR "invalid operation.*not defined|invalid comparison"
+ _ = 1 == e
+ _ = 1 != e
+ _ = 1 >= e // ERROR "invalid operation.*not defined|invalid comparison"
+
+ _ = i == 1 // ERROR "invalid operation.*mismatched types|incompatible types|cannot convert"
+ _ = i != 1 // ERROR "invalid operation.*mismatched types|incompatible types|cannot convert"
+ _ = i >= 1 // ERROR "invalid operation.*mismatched types|incompatible types|cannot convert"
+ _ = 1 == i // ERROR "invalid operation.*mismatched types|incompatible types|cannot convert"
+ _ = 1 != i // ERROR "invalid operation.*mismatched types|incompatible types|cannot convert"
+ _ = 1 >= i // ERROR "invalid operation.*mismatched types|incompatible types|cannot convert"
+
+ _ = e == f // ERROR "invalid operation.*not defined|invalid operation"
+ _ = e != f // ERROR "invalid operation.*not defined|invalid operation"
+ _ = e >= f // ERROR "invalid operation.*not defined|invalid comparison"
+ _ = f == e // ERROR "invalid operation.*not defined|invalid operation"
+ _ = f != e // ERROR "invalid operation.*not defined|invalid operation"
+ _ = f >= e // ERROR "invalid operation.*not defined|invalid comparison"
+
+ _ = i == f // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = i != f // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = i >= f // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = f == i // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = f != i // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = f >= i // ERROR "invalid operation.*mismatched types|incompatible types"
+
+ _ = e == g // ERROR "invalid operation.*not defined|invalid operation"
+ _ = e != g // ERROR "invalid operation.*not defined|invalid operation"
+ _ = e >= g // ERROR "invalid operation.*not defined|invalid comparison"
+ _ = g == e // ERROR "invalid operation.*not defined|invalid operation"
+ _ = g != e // ERROR "invalid operation.*not defined|invalid operation"
+ _ = g >= e // ERROR "invalid operation.*not defined|invalid comparison"
+
+ _ = i == g // ERROR "invalid operation.*not defined|invalid operation"
+ _ = i != g // ERROR "invalid operation.*not defined|invalid operation"
+ _ = i >= g // ERROR "invalid operation.*not defined|invalid comparison"
+ _ = g == i // ERROR "invalid operation.*not defined|invalid operation"
+ _ = g != i // ERROR "invalid operation.*not defined|invalid operation"
+ _ = g >= i // ERROR "invalid operation.*not defined|invalid comparison"
+
+ _ = _ == e // ERROR "cannot use .*_.* as value"
+ _ = _ == i // ERROR "cannot use .*_.* as value"
+ _ = _ == c // ERROR "cannot use .*_.* as value"
+ _ = _ == n // ERROR "cannot use .*_.* as value"
+ _ = _ == f // ERROR "cannot use .*_.* as value"
+ _ = _ == g // ERROR "cannot use .*_.* as value"
+
+ _ = e == _ // ERROR "cannot use .*_.* as value"
+ _ = i == _ // ERROR "cannot use .*_.* as value"
+ _ = c == _ // ERROR "cannot use .*_.* as value"
+ _ = n == _ // ERROR "cannot use .*_.* as value"
+ _ = f == _ // ERROR "cannot use .*_.* as value"
+ _ = g == _ // ERROR "cannot use .*_.* as value"
+
+ _ = _ == _ // ERROR "cannot use .*_.* as value"
+
+ _ = e ^ c // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = c ^ e // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = 1 ^ e // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = e ^ 1 // ERROR "invalid operation.*mismatched types|incompatible types"
+ _ = 1 ^ c
+ _ = c ^ 1
+)