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// errorcheck // Copyright 2013 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. // Issue 4654. // Check error for conversion and 'not used' in defer/go. package p import "unsafe" func f() { defer int(0) // ERROR "defer requires function call, not conversion|is not used" go string([]byte("abc")) // ERROR "go requires function call, not conversion|is not used" var c complex128 var f float64 var t struct {X int} var x []int defer append(x, 1) // ERROR "defer discards result of append|is not used" defer cap(x) // ERROR "defer discards result of cap|is not used" defer complex(1, 2) // ERROR "defer discards result of complex|is not used" defer complex(f, 1) // ERROR "defer discards result of complex|is not used" defer imag(1i) // ERROR "defer discards result of imag|is not used" defer imag(c) // ERROR "defer discards result of imag|is not used" defer len(x) // ERROR "defer discards result of len|is not used" defer make([]int, 1) // ERROR "defer discards result of make|is not used" defer make(chan bool) // ERROR "defer discards result of make|is not used" defer make(map[string]int) // ERROR "defer discards result of make|is not used" defer new(int) // ERROR "defer discards result of new|is not used" defer real(1i) // ERROR "defer discards result of real|is not used" defer real(c) // ERROR "defer discards result of real|is not used" defer append(x, 1) // ERROR "defer discards result of append|is not used" defer append(x, 1) // ERROR "defer discards result of append|is not used" defer unsafe.Alignof(t.X) // ERROR "defer discards result of unsafe.Alignof|is not used" defer unsafe.Offsetof(t.X) // ERROR "defer discards result of unsafe.Offsetof|is not used" defer unsafe.Sizeof(t) // ERROR "defer discards result of unsafe.Sizeof|is not used" defer copy(x, x) // ok m := make(map[int]int) defer delete(m, 1) // ok defer panic(1) // ok defer print(1) // ok defer println(1) // ok defer recover() // ok int(0) // ERROR "int\(0\) evaluated but not used|is not used" string([]byte("abc")) // ERROR "string\(.*\) evaluated but not used|is not used" append(x, 1) // ERROR "not used" cap(x) // ERROR "not used" complex(1, 2) // ERROR "not used" complex(f, 1) // ERROR "not used" imag(1i) // ERROR "not used" imag(c) // ERROR "not used" len(x) // ERROR "not used" make([]int, 1) // ERROR "not used" make(chan bool) // ERROR "not used" make(map[string]int) // ERROR "not used" new(int) // ERROR "not used" real(1i) // ERROR "not used" real(c) // ERROR "not used" append(x, 1) // ERROR "not used" append(x, 1) // ERROR "not used" unsafe.Alignof(t.X) // ERROR "not used" unsafe.Offsetof(t.X) // ERROR "not used" unsafe.Sizeof(t) // ERROR "not used" }