main.go

Documentation: cmd/cgo/internal/testgodefs/testdata

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"os"
    10  	"reflect"
    11  )
    12  
    13  // Test that the struct field in anonunion.go was promoted.
    14  var v1 T
    15  var v2 = v1.L
    16  
    17  // Test that P, Q, and R all point to byte.
    18  var v3 = Issue8478{P: (*byte)(nil), Q: (**byte)(nil), R: (***byte)(nil)}
    19  
    20  // Test that N, A and B are fully defined
    21  var v4 = N{}
    22  var v5 = A{}
    23  var v6 = B{}
    24  
    25  // Test that S is fully defined
    26  var v7 = S{}
    27  
    28  // Test that #define'd type is fully defined
    29  var _ = issue38649{X: 0}
    30  
    31  // Test that prefixes do not cause duplicate field names.
    32  var _ = Issue48396{Fd: 1, Bpf_fd: 2}
    33  
    34  func main() {
    35  	pass := true
    36  
    37  	// The Go translation of bitfields should not have any of the
    38  	// bitfield types. The order in which bitfields are laid out
    39  	// in memory is implementation defined, so we can't easily
    40  	// know how a bitfield should correspond to a Go type, even if
    41  	// it appears to be aligned correctly.
    42  	bitfieldType := reflect.TypeOf(bitfields{})
    43  	check := func(name string) {
    44  		_, ok := bitfieldType.FieldByName(name)
    45  		if ok {
    46  			fmt.Fprintf(os.Stderr, "found unexpected bitfields field %s\n", name)
    47  			pass = false
    48  		}
    49  	}
    50  	check("Short1")
    51  	check("Short2")
    52  	check("Short3")
    53  
    54  	if !pass {
    55  		os.Exit(1)
    56  	}
    57  }
    58
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