xref: /aosp_15_r20/external/pdfium/core/fxcrt/cfx_read_only_string_stream.cpp (revision 3ac0a46f773bac49fa9476ec2b1cf3f8da5ec3a4) 
1 // Copyright 2022 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "core/fxcrt/cfx_read_only_string_stream.h"
6 
7 #include <utility>
8 
9 #include "core/fxcrt/cfx_read_only_span_stream.h"
10 #include "third_party/base/containers/span.h"
11 
CFX_ReadOnlyStringStream(ByteString data)12 CFX_ReadOnlyStringStream::CFX_ReadOnlyStringStream(ByteString data)
13     : data_(std::move(data)),
14       stream_(pdfium::MakeRetain<CFX_ReadOnlySpanStream>(data_.raw_span())) {}
15 
16 CFX_ReadOnlyStringStream::~CFX_ReadOnlyStringStream() = default;
17 
GetSize()18 FX_FILESIZE CFX_ReadOnlyStringStream::GetSize() {
19   return stream_->GetSize();
20 }
21 
ReadBlockAtOffset(pdfium::span<uint8_t> buffer,FX_FILESIZE offset)22 bool CFX_ReadOnlyStringStream::ReadBlockAtOffset(pdfium::span<uint8_t> buffer,
23                                                  FX_FILESIZE offset) {
24   return stream_->ReadBlockAtOffset(buffer, offset);
25 }
26