mirror of
https://github.com/golang/go
synced 2024-11-19 06:34:42 -07:00
565b5dc076
* Code for assignment, conversions now mirrors spec. * Changed some snprint -> smprint. * Renamed runtime functions to separate interface conversions from type assertions: convT2I, assertI2T, etc. * Correct checking of \U sequences. Fixes #840. Fixes #830. Fixes #778. R=ken2 CC=golang-dev https://golang.org/cl/1303042
59 lines
744 B
Go
59 lines
744 B
Go
// errchk $G $D/$F.go
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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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// Error messages about missing implicit methods.
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package main
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type T int
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func (t T) V()
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func (t *T) P()
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type V interface {
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V()
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}
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type P interface {
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P()
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V()
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}
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type S struct {
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T
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}
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type SP struct {
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*T
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}
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func main() {
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var t T
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var v V
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var p P
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var s S
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var sp SP
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v = t
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p = t // ERROR "does not implement|requires a pointer"
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_, _ = v, p
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v = &t
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p = &t
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_, _ = v, p
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v = s
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p = s // ERROR "does not implement|requires a pointer"
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_, _ = v, p
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v = &s
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p = &s
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_, _ = v, p
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v = sp
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p = sp // no error!
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_, _ = v, p
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v = &sp
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p = &sp
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_, _ = v, p
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}
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