Source/core/dom/ExceptionCodePlaceholder.h

/*
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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#ifndef ExceptionCodePlaceholder_h
#define ExceptionCodePlaceholder_h

#include "wtf/Assertions.h"
#include "wtf/Noncopyable.h"

namespace WebCore {

typedef int ExceptionCode;

class ExceptionCodePlaceholder {
    WTF_MAKE_NONCOPYABLE(ExceptionCodePlaceholder);
public:
    ExceptionCodePlaceholder();
    explicit ExceptionCodePlaceholder(ExceptionCode);

    operator ExceptionCode& () const { return m_code; }

protected:
    mutable ExceptionCode m_code;
};

inline ExceptionCodePlaceholder::ExceptionCodePlaceholder()
    : m_code(0)
{
}

inline ExceptionCodePlaceholder::ExceptionCodePlaceholder(ExceptionCode code)
    : m_code(code)
{
}

class IgnorableExceptionCode : public ExceptionCodePlaceholder {
};

#define IGNORE_EXCEPTION ::WebCore::IgnorableExceptionCode()

#if ASSERT_DISABLED

#define ASSERT_NO_EXCEPTION ::WebCore::IgnorableExceptionCode()

#else

class NoExceptionAssertionChecker : public ExceptionCodePlaceholder {
public:
    NoExceptionAssertionChecker(const char* file, int line);
    ~NoExceptionAssertionChecker();

private:
    static const ExceptionCode defaultExceptionCode = 0xaaaaaaaa;
    const char* m_file;
    int m_line;
};

#define ASSERT_NO_EXCEPTION ::WebCore::NoExceptionAssertionChecker(__FILE__, __LINE__)

#endif

}

#endif