diff options
| -rw-r--r-- | core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp index 85cf034c1f..bb29595721 100644 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp @@ -31,6 +31,16 @@ FX_BOOL _PDF_HasInvalidOpChar(FX_LPCSTR op) } return FALSE; } +class CPDF_StreamParserAutoClearer { + public: + CPDF_StreamParserAutoClearer(CPDF_StreamParser** scoped_variable, CPDF_StreamParser* new_parser) + : scoped_variable_(scoped_variable) { + *scoped_variable_ = new_parser; + } + ~CPDF_StreamParserAutoClearer() { *scoped_variable_ = NULL; } + private: + CPDF_StreamParser** scoped_variable_; +}; FX_DWORD CPDF_StreamContentParser::Parse(FX_LPCBYTE pData, FX_DWORD dwSize, FX_DWORD max_cost) { if (m_Level > _FPDF_MAX_FORM_LEVEL_) { @@ -38,7 +48,7 @@ FX_DWORD CPDF_StreamContentParser::Parse(FX_LPCBYTE pData, FX_DWORD dwSize, FX_D } FX_DWORD InitObjCount = m_pObjectList->CountObjects(); CPDF_StreamParser syntax(pData, dwSize); - m_pSyntax = &syntax; + CPDF_StreamParserAutoClearer auto_clearer(&m_pSyntax, &syntax); m_CompatCount = 0; while (1) { FX_DWORD cost = m_pObjectList->CountObjects() - InitObjCount; |