github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/exp/shiny/driver/internal/errscreen/errscreen.go (about)

     1  // Copyright 2015 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 errscreen provides a stub Screen implementation.
     6  package errscreen
     7  
     8  import (
     9  	"image"
    10  
    11  	"golang.org/x/exp/shiny/screen"
    12  )
    13  
    14  // Stub returns a Screen whose methods all return the given error.
    15  func Stub(err error) screen.Screen {
    16  	return stub{err}
    17  }
    18  
    19  type stub struct {
    20  	err error
    21  }
    22  
    23  func (s stub) NewBuffer(size image.Point) (screen.Buffer, error)              { return nil, s.err }
    24  func (s stub) NewTexture(size image.Point) (screen.Texture, error)            { return nil, s.err }
    25  func (s stub) NewWindow(opts *screen.NewWindowOptions) (screen.Window, error) { return nil, s.err }