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comparison lldb/source/Utility/StreamString.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 5f17cb93ff66
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147:c2174574ed3a 150:1d019706d866
1 //===-- StreamString.cpp --------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "lldb/Utility/StreamString.h"
10
11 using namespace lldb;
12 using namespace lldb_private;
13
14 StreamString::StreamString() : Stream(0, 4, eByteOrderBig) {}
15
16 StreamString::StreamString(uint32_t flags, uint32_t addr_size,
17 ByteOrder byte_order)
18 : Stream(flags, addr_size, byte_order), m_packet() {}
19
20 StreamString::~StreamString() {}
21
22 void StreamString::Flush() {
23 // Nothing to do when flushing a buffer based stream...
24 }
25
26 size_t StreamString::WriteImpl(const void *s, size_t length) {
27 m_packet.append(static_cast<const char *>(s), length);
28 return length;
29 }
30
31 void StreamString::Clear() {
32 m_packet.clear();
33 m_bytes_written = 0;
34 }
35
36 bool StreamString::Empty() const { return GetSize() == 0; }
37
38 size_t StreamString::GetSize() const { return m_packet.size(); }
39
40 size_t StreamString::GetSizeOfLastLine() const {
41 const size_t length = m_packet.size();
42 size_t last_line_begin_pos = m_packet.find_last_of("\r\n");
43 if (last_line_begin_pos == std::string::npos) {
44 return length;
45 } else {
46 ++last_line_begin_pos;
47 return length - last_line_begin_pos;
48 }
49 }
50
51 llvm::StringRef StreamString::GetString() const { return m_packet; }
52
53 void StreamString::FillLastLineToColumn(uint32_t column, char fill_char) {
54 const size_t length = m_packet.size();
55 size_t last_line_begin_pos = m_packet.find_last_of("\r\n");
56 if (last_line_begin_pos == std::string::npos) {
57 last_line_begin_pos = 0;
58 } else {
59 ++last_line_begin_pos;
60 }
61
62 const size_t line_columns = length - last_line_begin_pos;
63 if (column > line_columns) {
64 m_packet.append(column - line_columns, fill_char);
65 }
66 }