From ee62ba2df7297147cccda472f229a8c82bfc22bc Mon Sep 17 00:00:00 2001 From: Dan Sinclair Date: Tue, 4 Apr 2017 15:07:31 -0400 Subject: Cleanup CFX_BlockBuffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This CL cleans up default parameters, return values and bits of code formatting in the CFX_BlockBuffer code. Change-Id: Ie7fd7d86046f716d0786213735ad464eefc58dbb Reviewed-on: https://pdfium-review.googlesource.com/3670 Commit-Queue: dsinclair Reviewed-by: Nicolás Peña Reviewed-by: Tom Sepez --- xfa/fde/xml/cfde_xmlsyntaxparser.cpp | 124 ++++++++++++++++++----------------- xfa/fde/xml/cfde_xmlsyntaxparser.h | 17 +++-- 2 files changed, 75 insertions(+), 66 deletions(-) (limited to 'xfa/fde/xml') diff --git a/xfa/fde/xml/cfde_xmlsyntaxparser.cpp b/xfa/fde/xml/cfde_xmlsyntaxparser.cpp index 45a1eddb83..b4f9a211a7 100644 --- a/xfa/fde/xml/cfde_xmlsyntaxparser.cpp +++ b/xfa/fde/xml/cfde_xmlsyntaxparser.cpp @@ -126,9 +126,11 @@ void CFDE_XMLSyntaxParser::Init(const CFX_RetainPtr& pStream, m_pBuffer = FX_Alloc( wchar_t, pdfium::base::ValueOrDieForType(alloc_size_safe)); m_pStart = m_pEnd = m_pBuffer; + ASSERT(!m_BlockBuffer.IsInitialized()); m_BlockBuffer.InitBuffer(); - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_iParsedBytes = m_iParsedChars = 0; m_iBufferChars = 0; } @@ -174,9 +176,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { if (ch == L'<') { if (m_iDataLength > 0) { m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_iEntityStart = -1; syntaxParserResult = FDE_XmlSyntaxResult::Text; } else { @@ -221,9 +223,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { return m_syntaxParserResult; } else { m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (m_syntaxParserState != FDE_XmlSyntaxState::Target) { syntaxParserResult = FDE_XmlSyntaxResult::TagName; } else { @@ -233,8 +235,8 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } } else { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) { return FDE_XmlSyntaxResult::Error; } @@ -275,16 +277,16 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } } m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_syntaxParserState = FDE_XmlSyntaxState::AttriEqualSign; syntaxParserResult = FDE_XmlSyntaxResult::AttriName; } } else { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) { return FDE_XmlSyntaxResult::Error; } @@ -333,8 +335,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } m_iTextDataLength = m_iDataLength; m_wQuotationMark = 0; - m_BlockBuffer.Reset(); - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_pStart++; m_syntaxParserState = FDE_XmlSyntaxState::AttriName; syntaxParserResult = FDE_XmlSyntaxResult::AttriValue; @@ -345,8 +348,8 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { case FDE_XmlSyntaxState::CloseInstruction: if (ch != L'>') { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) { return FDE_XmlSyntaxResult::Error; } @@ -356,8 +359,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { m_syntaxParserState = FDE_XmlSyntaxState::TargetData; } else if (m_iDataLength > 0) { m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); syntaxParserResult = FDE_XmlSyntaxResult::TargetData; } else { m_pStart++; @@ -373,8 +377,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { m_CurNode.eNodeType = FDE_XMLNODE_Unknown; } m_iCurrentNodeNum = m_CurNode.iNodeNum; - m_BlockBuffer.Reset(); - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_syntaxParserState = FDE_XmlSyntaxState::Text; syntaxParserResult = FDE_XmlSyntaxResult::InstructionClose; } @@ -407,9 +412,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } m_iCurrentNodeNum = m_CurNode.iNodeNum; m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_syntaxParserState = FDE_XmlSyntaxState::Text; syntaxParserResult = FDE_XmlSyntaxResult::ElementClose; } else if (!IsXMLWhiteSpace(ch)) { @@ -418,8 +423,8 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } } else { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) { return FDE_XmlSyntaxResult::Error; } @@ -447,13 +452,14 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { m_pStart += 3; syntaxParserResult = FDE_XmlSyntaxResult::CData; m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_syntaxParserState = FDE_XmlSyntaxState::Text; } else { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) return FDE_XmlSyntaxResult::Error; } @@ -500,14 +506,13 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { if (ch == m_SkipChar) { m_SkipStack.pop(); if (m_SkipStack.empty()) { - if (m_iDataLength >= 9) { - CFX_WideString wsHeader; - m_BlockBuffer.GetTextData(wsHeader, 0, 7); - } + if (m_iDataLength >= 9) + (void)m_BlockBuffer.GetTextData(0, 7); + m_iTextDataLength = m_iDataLength; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_syntaxParserState = FDE_XmlSyntaxState::Text; } else { m_SkipChar = m_SkipStack.top(); @@ -517,8 +522,8 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } if (!m_SkipStack.empty()) { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) { return FDE_XmlSyntaxResult::Error; } @@ -545,9 +550,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } else if (m_wQuotationMark == 0) { m_iTextDataLength = m_iDataLength; m_wQuotationMark = 0; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_pStart++; syntaxParserResult = FDE_XmlSyntaxResult::TargetData; break; @@ -563,9 +568,9 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } else if (ch == m_wQuotationMark) { m_iTextDataLength = m_iDataLength; m_wQuotationMark = 0; - m_BlockBuffer.Reset(); - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.Reset(true); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_pStart++; syntaxParserResult = FDE_XmlSyntaxResult::TargetData; } else { @@ -574,8 +579,8 @@ FDE_XmlSyntaxResult CFDE_XMLSyntaxParser::DoSyntaxParse() { } } else { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = - m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); if (!m_pCurrentBlock) { return FDE_XmlSyntaxResult::Error; } @@ -627,17 +632,17 @@ FX_FILESIZE CFDE_XMLSyntaxParser::GetCurrentBinaryPos() const { void CFDE_XMLSyntaxParser::ParseTextChar(wchar_t character) { if (m_iIndexInBlock == m_iAllocStep) { - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); - if (!m_pCurrentBlock) { + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); + if (!m_pCurrentBlock) return; - } } + m_pCurrentBlock[m_iIndexInBlock++] = character; m_iDataLength++; if (m_iEntityStart > -1 && character == L';') { - CFX_WideString csEntity; - m_BlockBuffer.GetTextData(csEntity, m_iEntityStart + 1, - (m_iDataLength - 1) - m_iEntityStart - 1); + CFX_WideString csEntity = m_BlockBuffer.GetTextData( + m_iEntityStart + 1, (m_iDataLength - 1) - m_iEntityStart - 1); int32_t iLen = csEntity.GetLength(); if (iLen > 0) { if (csEntity[0] == L'#') { @@ -691,13 +696,12 @@ void CFDE_XMLSyntaxParser::ParseTextChar(wchar_t character) { } } } - m_BlockBuffer.DeleteTextChars(m_iDataLength - m_iEntityStart, false); - m_pCurrentBlock = m_BlockBuffer.GetAvailableBlock(m_iIndexInBlock); + m_BlockBuffer.DeleteTextChars(m_iDataLength - m_iEntityStart); + std::tie(m_pCurrentBlock, m_iIndexInBlock) = + m_BlockBuffer.GetAvailableBlock(); m_iEntityStart = -1; - } else { - if (m_iEntityStart < 0 && character == L'&') { - m_iEntityStart = m_iDataLength - 1; - } + } else if (m_iEntityStart < 0 && character == L'&') { + m_iEntityStart = m_iDataLength - 1; } m_pStart++; } diff --git a/xfa/fde/xml/cfde_xmlsyntaxparser.h b/xfa/fde/xml/cfde_xmlsyntaxparser.h index 9e768d01aa..4f707dc5de 100644 --- a/xfa/fde/xml/cfde_xmlsyntaxparser.h +++ b/xfa/fde/xml/cfde_xmlsyntaxparser.h @@ -53,22 +53,27 @@ class CFDE_XMLSyntaxParser { int32_t GetLastNodeNumber() const { return m_iLastNodeNum; } void GetTargetName(CFX_WideString& wsTarget) const { - m_BlockBuffer.GetTextData(wsTarget, 0, m_iTextDataLength); + wsTarget = m_BlockBuffer.GetTextData(0, m_iTextDataLength); } + void GetTagName(CFX_WideString& wsTag) const { - m_BlockBuffer.GetTextData(wsTag, 0, m_iTextDataLength); + wsTag = m_BlockBuffer.GetTextData(0, m_iTextDataLength); } + void GetAttributeName(CFX_WideString& wsAttriName) const { - m_BlockBuffer.GetTextData(wsAttriName, 0, m_iTextDataLength); + wsAttriName = m_BlockBuffer.GetTextData(0, m_iTextDataLength); } + void GetAttributeValue(CFX_WideString& wsAttriValue) const { - m_BlockBuffer.GetTextData(wsAttriValue, 0, m_iTextDataLength); + wsAttriValue = m_BlockBuffer.GetTextData(0, m_iTextDataLength); } + void GetTextData(CFX_WideString& wsText) const { - m_BlockBuffer.GetTextData(wsText, 0, m_iTextDataLength); + wsText = m_BlockBuffer.GetTextData(0, m_iTextDataLength); } + void GetTargetData(CFX_WideString& wsData) const { - m_BlockBuffer.GetTextData(wsData, 0, m_iTextDataLength); + wsData = m_BlockBuffer.GetTextData(0, m_iTextDataLength); } protected: -- cgit v1.2.3