assertinline.go

     1  // errorcheck -0 -d=typeassert
     2  
     3  // Copyright 2015 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package p
     8  
     9  func assertptr(x interface{}) *int {
    10  	return x.(*int) // ERROR "type assertion inlined"
    11  }
    12  
    13  func assertptr2(x interface{}) (*int, bool) {
    14  	z, ok := x.(*int) // ERROR "type assertion inlined"
    15  	return z, ok
    16  }
    17  
    18  func assertfunc(x interface{}) func() {
    19  	return x.(func()) // ERROR "type assertion inlined"
    20  }
    21  
    22  func assertfunc2(x interface{}) (func(), bool) {
    23  	z, ok := x.(func()) // ERROR "type assertion inlined"
    24  	return z, ok
    25  }
    26  
    27  func assertstruct(x interface{}) struct{ *int } {
    28  	return x.(struct{ *int }) // ERROR "type assertion inlined"
    29  }
    30  
    31  func assertstruct2(x interface{}) (struct{ *int }, bool) {
    32  	z, ok := x.(struct{ *int }) // ERROR "type assertion inlined"
    33  	return z, ok
    34  }
    35  
    36  func assertbig(x interface{}) complex128 {
    37  	return x.(complex128) // ERROR "type assertion inlined"
    38  }
    39  
    40  func assertbig2(x interface{}) (complex128, bool) {
    41  	z, ok := x.(complex128) // ERROR "type assertion inlined"
    42  	return z, ok
    43  }
    44  
    45  func assertbig2ok(x interface{}) (complex128, bool) {
    46  	_, ok := x.(complex128) // ERROR "type assertion inlined"
    47  	return 0, ok
    48  }
    49  
    50  func assertslice(x interface{}) []int {
    51  	return x.([]int) // ERROR "type assertion inlined"
    52  }
    53  
    54  func assertslice2(x interface{}) ([]int, bool) {
    55  	z, ok := x.([]int) // ERROR "type assertion inlined"
    56  	return z, ok
    57  }
    58  
    59  func assertslice2ok(x interface{}) ([]int, bool) {
    60  	_, ok := x.([]int) // ERROR "type assertion inlined"
    61  	return nil, ok
    62  }
    63  
    64  type I interface {
    65  	foo()
    66  }
    67  
    68  func assertInter(x interface{}) I {
    69  	return x.(I) // ERROR "type assertion not inlined"
    70  }
    71  func assertInter2(x interface{}) (I, bool) {
    72  	z, ok := x.(I) // ERROR "type assertion not inlined"
    73  	return z, ok
    74  }
    75
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