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go/test/ken/intervar.go
Ken Thompson 0194aaf918 T{} syntax for constructors
T(expression) for conversion
FUNC keyword no longer a type

R=r
OCL=14887
CL=14887
2008-09-05 19:50:34 -07:00

76 lines
832 B
Go

// $G $D/$F.go && $L $F.$A && ./$A.out
// Copyright 2009 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.
package main
type Iputs interface
{
puts (s string);
}
// ---------
type Print struct
{
whoami int;
put Iputs;
}
func (p *Print)
dop()
{
print(" print ", p.whoami);
p.put.puts("abc");
}
// ---------
type Bio struct
{
whoami int;
put Iputs;
}
func (b *Bio)
puts(s string)
{
print(" bio ", b.whoami);
b.put.puts(s);
}
// ---------
type File struct
{
whoami int;
put Iputs;
}
func (f *File)
puts(s string)
{
print(" file ", f.whoami, " -- ", s);
}
func
main()
{
p := new(Print);
b := new(Bio);
f := new(File);
p.whoami = 1;
p.put = b;
b.whoami = 2;
b.put = f;
f.whoami = 3;
p.dop();
print("\n");
}