bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <string>
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#include <vector>
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#include <cm3p/kwiml/int.h>
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class cmExprParserHelper
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{
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public:
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struct ParserType
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{
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KWIML_INT_int64_t Number;
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};
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cmExprParserHelper();
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~cmExprParserHelper();
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int ParseString(const char* str, int verb);
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int LexInput(char* buf, int maxlen);
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void Error(const char* str);
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void SetResult(KWIML_INT_int64_t value);
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KWIML_INT_int64_t GetResult() { return this->Result; }
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const char* GetError() { return this->ErrorString.c_str(); }
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void UnexpectedChar(char c);
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std::string const& GetWarning() const { return this->WarningString; }
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private:
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std::string::size_type InputBufferPos;
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std::string InputBuffer;
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std::vector<char> OutputBuffer;
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int CurrentLine;
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int Verbose;
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void Print(const char* place, const char* str);
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void SetError(std::string errorString);
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KWIML_INT_int64_t Result;
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const char* FileName;
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long FileLine;
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std::string ErrorString;
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std::string WarningString;
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};
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#define YYSTYPE cmExprParserHelper::ParserType
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#define YYSTYPE_IS_DECLARED
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#define YY_EXTRA_TYPE cmExprParserHelper*
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#define YY_DECL int cmExpr_yylex(YYSTYPE* yylvalp, yyscan_t yyscanner)
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