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37 lines
872 B
37 lines
872 B
// Copyright 2011 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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package errors |
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import ( |
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"errors" |
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"fmt" |
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) |
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// errorString is a trivial implementation of error. |
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type errorString struct { |
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s string |
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frame Frame |
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} |
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// New returns an error that formats as the given text. |
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// |
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// The returned error contains a Frame set to the caller's location and |
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// implements Formatter to show this information when printed with details. |
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func New(text string) error { |
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if !Trace() { |
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return errors.New(text) |
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} |
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return &errorString{text, Caller(1)} |
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} |
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func (e *errorString) Error() string { return e.s } |
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func (e *errorString) Format(s fmt.State, v rune) { FormatError(e, s, v) } |
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func (e *errorString) FormatError(p Printer) (next error) { |
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p.Print(e.s) |
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e.frame.Format(p) |
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return nil |
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}
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