mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-09-19 23:19:52 +00:00
5a66991bb3
updating the kubernetes release to the latest in main go.mod Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
// Copyright (c) 2012-2022 The ANTLR Project. All rights reserved.
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// Use of this file is governed by the BSD 3-clause license that
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// can be found in the LICENSE.txt file in the project root.
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package antlr
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import (
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"bufio"
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"os"
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)
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// This is an InputStream that is loaded from a file all at once
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// when you construct the object.
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type FileStream struct {
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InputStream
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filename string
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}
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//goland:noinspection GoUnusedExportedFunction
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func NewFileStream(fileName string) (*FileStream, error) {
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f, err := os.Open(fileName)
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if err != nil {
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return nil, err
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}
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defer func(f *os.File) {
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errF := f.Close()
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if errF != nil {
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}
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}(f)
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reader := bufio.NewReader(f)
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fInfo, err := f.Stat()
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if err != nil {
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return nil, err
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}
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fs := &FileStream{
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InputStream: InputStream{
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index: 0,
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name: fileName,
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},
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filename: fileName,
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}
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// Pre-build the buffer and read runes efficiently
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//
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fs.data = make([]rune, 0, fInfo.Size())
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for {
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r, _, err := reader.ReadRune()
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if err != nil {
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break
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}
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fs.data = append(fs.data, r)
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}
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fs.size = len(fs.data) // Size in runes
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// All done.
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//
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return fs, nil
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}
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func (f *FileStream) GetSourceName() string {
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return f.filename
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}
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