mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
mv src/lib to src/pkg
tests: all.bash passes, gobuild still works, godoc still works. R=rsc OCL=30096 CL=30102
This commit is contained in:
Rob Pike
parent
bf5c0c957c
commit
d90e7cbac6
391 changed files with 14 additions and 48 deletions
613
src/pkg/reflect/all_test.go
Normal file
613
src/pkg/reflect/all_test.go
Normal file
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@ -0,0 +1,613 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package reflect
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import (
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"io";
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"os";
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"reflect";
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"testing";
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"unsafe";
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)
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var doprint bool = false
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func is_digit(c uint8) bool {
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return '0' <= c && c <= '9'
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}
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// streq, but '@' in t matches a string of digits
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func match(s, t string) bool {
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for i, j := 0, 0; i < len(s) && j < len(t); i, j = i+1, j+1 {
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if s[i] == t[j] {
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continue
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}
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if is_digit(s[i]) && t[j] == '@' {
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for is_digit(s[i+1]) {
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i++
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}
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} else {
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return false
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}
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}
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return true;
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}
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func assert(s, t string) {
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if doprint {
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println(t)
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}
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if !match(s, t) {
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panicln(s, t)
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}
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}
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func typedump(s, t string) {
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typ := ParseTypeString("", s);
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assert(typeToString(typ, true), t);
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}
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func valuedump(s, t string) {
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typ := ParseTypeString("", s);
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v := NewZeroValue(typ);
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if v == nil {
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panicln("valuedump", s);
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}
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switch v.Kind() {
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case IntKind:
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v.(IntValue).Set(132);
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case Int8Kind:
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v.(Int8Value).Set(8);
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case Int16Kind:
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v.(Int16Value).Set(16);
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case Int32Kind:
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v.(Int32Value).Set(32);
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case Int64Kind:
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v.(Int64Value).Set(64);
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case UintKind:
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v.(UintValue).Set(132);
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case Uint8Kind:
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v.(Uint8Value).Set(8);
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case Uint16Kind:
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v.(Uint16Value).Set(16);
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case Uint32Kind:
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v.(Uint32Value).Set(32);
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case Uint64Kind:
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v.(Uint64Value).Set(64);
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case FloatKind:
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v.(FloatValue).Set(3200.0);
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case Float32Kind:
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v.(Float32Value).Set(32.1);
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case Float64Kind:
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v.(Float64Value).Set(64.2);
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case StringKind:
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v.(StringValue).Set("stringy cheese");
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case BoolKind:
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v.(BoolValue).Set(true);
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}
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assert(valueToString(v), t);
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}
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type T struct { a int; b float64; c string; d *int }
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func TestAll(tt *testing.T) { // TODO(r): wrap up better
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var s string;
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var t Type;
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// Types
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typedump("missing", "$missing$");
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typedump("int", "int");
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typedump("int8", "int8");
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typedump("int16", "int16");
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typedump("int32", "int32");
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typedump("int64", "int64");
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typedump("uint", "uint");
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typedump("uint8", "uint8");
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typedump("uint16", "uint16");
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typedump("uint32", "uint32");
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typedump("uint64", "uint64");
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typedump("float", "float");
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typedump("float32", "float32");
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typedump("float64", "float64");
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typedump("int8", "int8");
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typedump("whoknows.whatsthis", "$missing$");
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typedump("**int8", "**int8");
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typedump("**P.integer", "**P.integer");
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typedump("[32]int32", "[32]int32");
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typedump("[]int8", "[]int8");
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typedump("map[string]int32", "map[string]int32");
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typedump("chan<-string", "chan<-string");
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typedump("struct {c chan *int32; d float32}", "struct{c chan*int32; d float32}");
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typedump("func(a int8, b int32)", "func(a int8, b int32)");
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typedump("struct {c func(? chan *P.integer, ? *int8)}", "struct{c func(chan*P.integer, *int8)}");
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typedump("struct {a int8; b int32}", "struct{a int8; b int32}");
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typedump("struct {a int8; b int8; b int32}", "struct{a int8; b int8; b int32}");
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typedump("struct {a int8; b int8; c int8; b int32}", "struct{a int8; b int8; c int8; b int32}");
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typedump("struct {a int8; b int8; c int8; d int8; b int32}", "struct{a int8; b int8; c int8; d int8; b int32}");
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typedump("struct {a int8; b int8; c int8; d int8; e int8; b int32}", "struct{a int8; b int8; c int8; d int8; e int8; b int32}");
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typedump("struct {a int8 \"hi there\"; }", "struct{a int8 \"hi there\"}");
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typedump("struct {a int8 \"hi \\x00there\\t\\n\\\"\\\\\"; }", "struct{a int8 \"hi \\x00there\\t\\n\\\"\\\\\"}");
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typedump("struct {f func(args ...)}", "struct{f func(args ...)}");
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typedump("interface { a(? func(? func(? int) int) func(? func(? int)) int); b() }", "interface{a (func(func(int)(int))(func(func(int))(int))); b ()}");
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// Values
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valuedump("int8", "8");
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valuedump("int16", "16");
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valuedump("int32", "32");
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valuedump("int64", "64");
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valuedump("uint8", "8");
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valuedump("uint16", "16");
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valuedump("uint32", "32");
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valuedump("uint64", "64");
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valuedump("float32", "32.1");
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valuedump("float64", "64.2");
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valuedump("string", "stringy cheese");
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valuedump("bool", "true");
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valuedump("*int8", "*int8(0)");
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valuedump("**int8", "**int8(0)");
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valuedump("[5]int32", "[5]int32{0, 0, 0, 0, 0}");
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valuedump("**P.integer", "**P.integer(0)");
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valuedump("map[string]int32", "map[string]int32{<can't iterate on maps>}");
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valuedump("chan<-string", "chan<-string");
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valuedump("struct {c chan *int32; d float32}", "struct{c chan*int32; d float32}{chan*int32, 0}");
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valuedump("func(a int8, b int32)", "func(a int8, b int32)(0)");
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valuedump("struct {c func(? chan *P.integer, ? *int8)}", "struct{c func(chan*P.integer, *int8)}{func(chan*P.integer, *int8)(0)}");
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valuedump("struct {a int8; b int32}", "struct{a int8; b int32}{0, 0}");
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valuedump("struct {a int8; b int8; b int32}", "struct{a int8; b int8; b int32}{0, 0, 0}");
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{ var tmp = 123;
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value := NewValue(tmp);
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assert(valueToString(value), "123");
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}
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{ var tmp = 123.4;
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value := NewValue(tmp);
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assert(valueToString(value), "123.4");
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}
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{
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var tmp = byte(123);
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value := NewValue(tmp);
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assert(valueToString(value), "123");
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assert(typeToString(value.Type(), false), "uint8");
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}
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{ var tmp = "abc";
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value := NewValue(tmp);
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assert(valueToString(value), "abc");
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}
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{
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var i int = 7;
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var tmp = &T{123, 456.75, "hello", &i};
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value := NewValue(tmp);
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assert(valueToString(value.(PtrValue).Sub()), "reflect.T{123, 456.75, hello, *int(@)}");
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}
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{
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type C chan *T; // TODO: should not be necessary
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var tmp = new(C);
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value := NewValue(tmp);
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assert(valueToString(value), "*reflect.C·all_test(@)");
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}
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// {
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// type A [10]int;
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// var tmp A = A{1,2,3,4,5,6,7,8,9,10};
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// value := NewValue(&tmp);
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// assert(valueToString(value.(PtrValue).Sub()), "reflect.A·all_test{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}");
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// value.(PtrValue).Sub().(ArrayValue).Elem(4).(IntValue).Set(123);
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// assert(valueToString(value.(PtrValue).Sub()), "reflect.A·all_test{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}");
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// }
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{
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type AA []int;
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var tmp = AA{1,2,3,4,5,6,7,8,9,10};
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value := NewValue(&tmp); // TODO: NewValue(tmp) too
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assert(valueToString(value.(PtrValue).Sub()), "reflect.AA·all_test{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}");
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value.(PtrValue).Sub().(ArrayValue).Elem(4).(IntValue).Set(123);
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assert(valueToString(value.(PtrValue).Sub()), "reflect.AA·all_test{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}");
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}
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{
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var ip *int32;
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var i int32 = 1234;
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vip := NewValue(&ip);
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vi := NewValue(i);
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vip.(PtrValue).Sub().(PtrValue).SetSub(vi);
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if *ip != 1234 {
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panicln("SetSub failure", *ip);
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}
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}
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var pt PtrType;
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var st StructType;
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var mt MapType;
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var at ArrayType;
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var ct ChanType;
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var name string;
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var typ Type;
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var tag string;
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var offset int;
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// Type strings
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t = ParseTypeString("", "int8");
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assert(t.String(), "int8");
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t = ParseTypeString("", "*int8");
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assert(t.String(), "*int8");
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pt = t.(PtrType);
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assert(pt.Sub().String(), "int8");
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t = ParseTypeString("", "*struct {c chan *int32; d float32}");
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assert(t.String(), "*struct {c chan *int32; d float32}");
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pt = t.(PtrType);
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assert(pt.Sub().String(), "struct {c chan *int32; d float32}");
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st = pt.Sub().(StructType);
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name, typ, tag, offset = st.Field(0);
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assert(typ.String(), "chan *int32");
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name, typ, tag, offset = st.Field(1);
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assert(typ.String(), "float32");
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t = ParseTypeString("", "interface {a() *int}");
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assert(t.String(), "interface {a() *int}");
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t = ParseTypeString("", "func(a int8, b int32)");
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assert(t.String(), "func(a int8, b int32)");
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t = ParseTypeString("", "func(a int8, b int32) float");
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assert(t.String(), "func(a int8, b int32) float");
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t = ParseTypeString("", "func(a int8, b int32) (a float, b float)");
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assert(t.String(), "func(a int8, b int32) (a float, b float)");
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t = ParseTypeString("", "[32]int32");
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assert(t.String(), "[32]int32");
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at = t.(ArrayType);
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assert(at.Elem().String(), "int32");
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t = ParseTypeString("", "map[string]*int32");
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assert(t.String(), "map[string]*int32");
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mt = t.(MapType);
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assert(mt.Key().String(), "string");
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assert(mt.Elem().String(), "*int32");
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|
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t = ParseTypeString("", "chan<-string");
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assert(t.String(), "chan<-string");
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ct = t.(ChanType);
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assert(ct.Elem().String(), "string");
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// make sure tag strings are not part of element type
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t = ParseTypeString("", "struct{d []uint32 \"TAG\"}");
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st = t.(StructType);
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name, typ, tag, offset = st.Field(0);
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assert(typ.String(), "[]uint32");
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t = ParseTypeString("", "[]int32");
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v := NewSliceValue(t.(ArrayType), 5, 10);
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t1 := ParseTypeString("", "*[]int32");
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v1 := NewZeroValue(t1);
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if v1 == nil { panic("V1 is nil"); }
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v1.(PtrValue).SetSub(v);
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a := v1.Interface().(*[]int32);
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println(&a, len(a), cap(a));
|
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for i := 0; i < len(a); i++ {
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v.Elem(i).(Int32Value).Set(int32(i));
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||||
}
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for i := 0; i < len(a); i++ {
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println(a[i]);
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}
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}
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|
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func TestInterfaceGet(t *testing.T) {
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var inter struct { e interface{ } };
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inter.e = 123.456;
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v1 := NewValue(&inter);
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v2 := v1.(PtrValue).Sub().(StructValue).Field(0);
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assert(v2.Type().String(), "interface { }");
|
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i2 := v2.(InterfaceValue).Get();
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v3 := NewValue(i2);
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assert(v3.Type().String(), "float");
|
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}
|
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|
||||
func TestInterfaceValue(t *testing.T) {
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var inter struct { e interface{ } };
|
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inter.e = 123.456;
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v1 := NewValue(&inter);
|
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v2 := v1.(PtrValue).Sub().(StructValue).Field(0);
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assert(v2.Type().String(), "interface { }");
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v3 := v2.(InterfaceValue).Value();
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assert(v3.Type().String(), "float");
|
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|
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i3 := v2.Interface();
|
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if f, ok := i3.(float); !ok {
|
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a, typ, c := unsafe.Reflect(i3);
|
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t.Error("v2.Interface() did not return float, got ", typ);
|
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}
|
||||
}
|
||||
|
||||
func TestFunctionValue(t *testing.T) {
|
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v := NewValue(func() {});
|
||||
if v.Interface() != v.Interface() {
|
||||
t.Fatalf("TestFunction != itself");
|
||||
}
|
||||
assert(v.Type().String(), "func()");
|
||||
}
|
||||
|
||||
func TestCopyArray(t *testing.T) {
|
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a := []int{ 1, 2, 3, 4, 10, 9, 8, 7 };
|
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b := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
|
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c := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
|
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va := NewValue(&a);
|
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vb := NewValue(&b);
|
||||
for i := 0; i < len(b); i++ {
|
||||
if b[i] != c[i] {
|
||||
t.Fatalf("b != c before test");
|
||||
}
|
||||
}
|
||||
for tocopy := 1; tocopy <= 7; tocopy++ {
|
||||
vb.(PtrValue).Sub().(ArrayValue).CopyFrom(va.(PtrValue).Sub().(ArrayValue), tocopy);
|
||||
for i := 0; i < tocopy; i++ {
|
||||
if a[i] != b[i] {
|
||||
t.Errorf("1 tocopy=%d a[%d]=%d, b[%d]=%d",
|
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tocopy, i, a[i], i, b[i]);
|
||||
}
|
||||
}
|
||||
for i := tocopy; i < len(b); i++ {
|
||||
if b[i] != c[i] {
|
||||
if i < len(a) {
|
||||
t.Errorf("2 tocopy=%d a[%d]=%d, b[%d]=%d, c[%d]=%d",
|
||||
tocopy, i, a[i], i, b[i], i, c[i]);
|
||||
} else {
|
||||
t.Errorf("3 tocopy=%d b[%d]=%d, c[%d]=%d",
|
||||
tocopy, i, b[i], i, c[i]);
|
||||
}
|
||||
} else {
|
||||
t.Logf("tocopy=%d elem %d is okay\n", tocopy, i);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestBigUnnamedStruct(t *testing.T) {
|
||||
b := struct{a,b,c,d int64}{1, 2, 3, 4};
|
||||
v := NewValue(b);
|
||||
b1 := v.Interface().(struct{a,b,c,d int64});
|
||||
if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d {
|
||||
t.Errorf("NewValue(%v).Interface().(Big) = %v", b, b1);
|
||||
}
|
||||
}
|
||||
|
||||
type big struct {
|
||||
a, b, c, d, e int64
|
||||
}
|
||||
func TestBigStruct(t *testing.T) {
|
||||
b := big{1, 2, 3, 4, 5};
|
||||
v := NewValue(b);
|
||||
b1 := v.Interface().(big);
|
||||
if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d || b1.e != b.e {
|
||||
t.Errorf("NewValue(%v).Interface().(big) = %v", b, b1);
|
||||
}
|
||||
}
|
||||
|
||||
type Basic struct {
|
||||
x int;
|
||||
y float32
|
||||
}
|
||||
|
||||
type NotBasic Basic
|
||||
|
||||
type Recursive struct {
|
||||
x int;
|
||||
r *Recursive
|
||||
}
|
||||
|
||||
type Complex struct {
|
||||
a int;
|
||||
b [3]*Complex;
|
||||
c *string;
|
||||
d map[float]float
|
||||
}
|
||||
|
||||
type DeepEqualTest struct {
|
||||
a, b interface{};
|
||||
eq bool;
|
||||
}
|
||||
|
||||
var deepEqualTests = []DeepEqualTest {
|
||||
// Equalities
|
||||
DeepEqualTest{ 1, 1, true },
|
||||
DeepEqualTest{ int32(1), int32(1), true },
|
||||
DeepEqualTest{ 0.5, 0.5, true },
|
||||
DeepEqualTest{ float32(0.5), float32(0.5), true },
|
||||
DeepEqualTest{ "hello", "hello", true },
|
||||
DeepEqualTest{ make([]int, 10), make([]int, 10), true },
|
||||
DeepEqualTest{ &[3]int{ 1, 2, 3 }, &[3]int{ 1, 2, 3 }, true },
|
||||
DeepEqualTest{ Basic{ 1, 0.5 }, Basic{ 1, 0.5 }, true },
|
||||
// Inequalities
|
||||
DeepEqualTest{ 1, 2, false },
|
||||
DeepEqualTest{ int32(1), int32(2), false },
|
||||
DeepEqualTest{ 0.5, 0.6, false },
|
||||
DeepEqualTest{ float32(0.5), float32(0.6), false },
|
||||
DeepEqualTest{ "hello", "hey", false },
|
||||
DeepEqualTest{ make([]int, 10), make([]int, 11), false },
|
||||
DeepEqualTest{ &[3]int{ 1, 2, 3 }, &[3]int{ 1, 2, 4 }, false },
|
||||
DeepEqualTest{ Basic{ 1, 0.5 }, Basic{ 1, 0.6 }, false },
|
||||
// Mismatched types
|
||||
DeepEqualTest{ 1, 1.0, false },
|
||||
DeepEqualTest{ int32(1), int64(1), false },
|
||||
DeepEqualTest{ 0.5, "hello", false },
|
||||
DeepEqualTest{ []int{ 1, 2, 3 }, [3]int{ 1, 2, 3 }, false },
|
||||
DeepEqualTest{ &[3]interface{} { 1, 2, 4 }, &[3]interface{} { 1, 2, "s" }, false },
|
||||
DeepEqualTest{ Basic{ 1, 0.5 }, NotBasic{ 1, 0.5 }, false },
|
||||
}
|
||||
|
||||
func TestDeepEqual(t *testing.T) {
|
||||
for i, test := range deepEqualTests {
|
||||
if r := DeepEqual(test.a, test.b); r != test.eq {
|
||||
t.Errorf("DeepEqual(%v, %v) = %v, want %v", test.a, test.b, r, test.eq);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestDeepEqualRecursiveStruct(t *testing.T) {
|
||||
a, b := new(Recursive), new(Recursive);
|
||||
*a = Recursive{ 12, a };
|
||||
*b = Recursive{ 12, b };
|
||||
if !DeepEqual(a, b) {
|
||||
t.Error("DeepEqual(recursive same) = false, want true");
|
||||
}
|
||||
}
|
||||
|
||||
func TestDeepEqualComplexStruct(t *testing.T) {
|
||||
m := make(map[float]float);
|
||||
stra, strb := "hello", "hello";
|
||||
a, b := new(Complex), new(Complex);
|
||||
*a = Complex{5, [3]*Complex{a, b, a}, &stra, m};
|
||||
*b = Complex{5, [3]*Complex{b, a, a}, &strb, m};
|
||||
if !DeepEqual(a, b) {
|
||||
t.Error("DeepEqual(complex same) = false, want true");
|
||||
}
|
||||
}
|
||||
|
||||
func TestDeepEqualComplexStructInequality(t *testing.T) {
|
||||
m := make(map[float]float);
|
||||
stra, strb := "hello", "helloo"; // Difference is here
|
||||
a, b := new(Complex), new(Complex);
|
||||
*a = Complex{5, [3]*Complex{a, b, a}, &stra, m};
|
||||
*b = Complex{5, [3]*Complex{b, a, a}, &strb, m};
|
||||
if DeepEqual(a, b) {
|
||||
t.Error("DeepEqual(complex different) = true, want false");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
func check2ndField(x interface{}, offs uintptr, t *testing.T) {
|
||||
s := NewValue(x).(StructValue);
|
||||
name, ftype, tag, reflect_offset := s.Type().(StructType).Field(1);
|
||||
if uintptr(reflect_offset) != offs {
|
||||
t.Error("mismatched offsets in structure alignment:", reflect_offset, offs);
|
||||
}
|
||||
}
|
||||
|
||||
// Check that structure alignment & offsets viewed through reflect agree with those
|
||||
// from the compiler itself.
|
||||
func TestAlignment(t *testing.T) {
|
||||
type T1inner struct {
|
||||
a int
|
||||
}
|
||||
type T1 struct {
|
||||
T1inner;
|
||||
f int;
|
||||
}
|
||||
type T2inner struct {
|
||||
a, b int
|
||||
}
|
||||
type T2 struct {
|
||||
T2inner;
|
||||
f int;
|
||||
}
|
||||
|
||||
x := T1{T1inner{2}, 17};
|
||||
check2ndField(x, uintptr(unsafe.Pointer(&x.f)) - uintptr(unsafe.Pointer(&x)), t);
|
||||
|
||||
x1 := T2{T2inner{2, 3}, 17};
|
||||
check2ndField(x1, uintptr(unsafe.Pointer(&x1.f)) - uintptr(unsafe.Pointer(&x1)), t);
|
||||
}
|
||||
|
||||
type Nillable interface {
|
||||
IsNil() bool
|
||||
}
|
||||
|
||||
func Nil(a interface{}, t *testing.T) {
|
||||
n := NewValue(a).(Nillable);
|
||||
if !n.IsNil() {
|
||||
t.Errorf("%v should be nil", a)
|
||||
}
|
||||
}
|
||||
|
||||
func NotNil(a interface{}, t *testing.T) {
|
||||
n := NewValue(a).(Nillable);
|
||||
if n.IsNil() {
|
||||
t.Errorf("value of type %v should not be nil", NewValue(a).Type().String())
|
||||
}
|
||||
}
|
||||
|
||||
func TestIsNil(t *testing.T) {
|
||||
// These do not implement IsNil
|
||||
doNotNil := []string{"int", "float32", "struct { a int }"};
|
||||
// These do implement IsNil
|
||||
doNil := []string{"*int", "interface{}", "map[string]int", "func() bool", "chan int", "[]string"};
|
||||
for i, ts := range doNotNil {
|
||||
ty := ParseTypeString("", ts);
|
||||
v := NewZeroValue(ty);
|
||||
if nilable, ok := v.(Nillable); ok {
|
||||
t.Errorf("%s is nilable; should not be", ts)
|
||||
}
|
||||
}
|
||||
|
||||
for i, ts := range doNil {
|
||||
ty := ParseTypeString("", ts);
|
||||
v := NewZeroValue(ty);
|
||||
if nilable, ok := v.(Nillable); !ok {
|
||||
t.Errorf("%s %T is not nilable; should be", ts, v)
|
||||
}
|
||||
}
|
||||
// Check the implementations
|
||||
var pi *int;
|
||||
Nil(pi, t);
|
||||
pi = new(int);
|
||||
NotNil(pi, t);
|
||||
|
||||
var si []int;
|
||||
Nil(si, t);
|
||||
si = make([]int, 10);
|
||||
NotNil(si, t);
|
||||
|
||||
// TODO: map and chan don't work yet
|
||||
|
||||
var ii interface {};
|
||||
Nil(ii, t);
|
||||
ii = pi;
|
||||
NotNil(ii, t);
|
||||
|
||||
var fi func(t *testing.T);
|
||||
Nil(fi, t);
|
||||
fi = TestIsNil;
|
||||
NotNil(fi, t);
|
||||
}
|
||||
|
||||
func TestInterfaceExtraction(t *testing.T) {
|
||||
var s struct {
|
||||
w io.Writer;
|
||||
}
|
||||
|
||||
s.w = os.Stdout;
|
||||
v := Indirect(NewValue(&s)).(StructValue).Field(0).Interface();
|
||||
if v != s.w.(interface{}) {
|
||||
t.Errorf("Interface() on interface: ", v, s.w);
|
||||
}
|
||||
}
|
||||
|
||||
func TestInterfaceEditing(t *testing.T) {
|
||||
// strings are bigger than one word,
|
||||
// so the interface conversion allocates
|
||||
// memory to hold a string and puts that
|
||||
// pointer in the interface.
|
||||
var i interface{} = "hello";
|
||||
|
||||
// if i pass the interface value by value
|
||||
// to NewValue, i should get a fresh copy
|
||||
// of the value.
|
||||
v := NewValue(i);
|
||||
|
||||
// and setting that copy to "bye" should
|
||||
// not change the value stored in i.
|
||||
v.(StringValue).Set("bye");
|
||||
if i.(string) != "hello" {
|
||||
t.Errorf(`Set("bye") changed i to %s`, i.(string));
|
||||
}
|
||||
|
||||
// the same should be true of smaller items.
|
||||
i = 123;
|
||||
v = NewValue(i);
|
||||
v.(IntValue).Set(234);
|
||||
if i.(int) != 123 {
|
||||
t.Errorf("Set(234) changed i to %d", i.(int));
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue