44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package deploy
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import (
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"github.com/pulumi/pulumi-fabric/pkg/tokens"
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)
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// NullSource is a singleton source that never returns any resources. This may be used in scenarios where the "new"
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// version of the world is meant to be empty, either for testing purposes, or removal of an existing environment.
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var NullSource Source = &nullSource{}
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// A nullSource never returns any resources.
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type nullSource struct {
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}
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func (src *nullSource) Close() error {
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return nil // nothing to do.
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}
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func (src *nullSource) Pkg() tokens.PackageName {
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return ""
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}
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func (src *nullSource) Info() interface{} {
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return nil
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}
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func (src *nullSource) Iterate() (SourceIterator, error) {
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return &nullSourceIterator{}, nil
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}
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// nullSourceIterator always returns nil, nil in response to Next, indicating that it is done.
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type nullSourceIterator struct {
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}
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func (iter *nullSourceIterator) Close() error {
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return nil // nothing to do.
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}
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func (iter *nullSourceIterator) Next() (SourceGoal, error) {
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return nil, nil // means "done"
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}
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