101 рядки
3.7 KiB
C
101 рядки
3.7 KiB
C
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#pragma once
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#include <string>
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#include <stdexcept>
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#include <sqlite3.h>
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namespace sqlite
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{
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class sqlite_exception : public std::runtime_error
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{
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public:
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sqlite_exception(const char *msg, std::string sql, int code = -1) : runtime_error(msg), code(code), sql(sql)
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{
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}
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sqlite_exception(int code, std::string sql) : runtime_error(sqlite3_errstr(code)), code(code), sql(sql)
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{
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}
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int get_code() const
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{
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return code & 0xFF;
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}
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int get_extended_code() const
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{
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return code;
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}
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std::string get_sql() const
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{
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return sql;
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}
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private:
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int code;
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std::string sql;
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};
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namespace errors
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{
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// One more or less trivial derived error class for each SQLITE error.
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// Note the following are not errors so have no classes:
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// SQLITE_OK, SQLITE_NOTICE, SQLITE_WARNING, SQLITE_ROW, SQLITE_DONE
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//
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// Note these names are exact matches to the names of the SQLITE error codes.
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#define SQLITE_MODERN_CPP_ERROR_CODE(NAME, name, derived) \
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class name : public sqlite_exception \
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{ \
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using sqlite_exception::sqlite_exception; \
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}; \
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derived
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#define SQLITE_MODERN_CPP_ERROR_CODE_EXTENDED(BASE, SUB, base, sub) \
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class base##_##sub : public base \
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{ \
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using base::base; \
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};
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#include "lists/error_codes.h"
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#undef SQLITE_MODERN_CPP_ERROR_CODE_EXTENDED
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#undef SQLITE_MODERN_CPP_ERROR_CODE
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// Some additional errors are here for the C++ interface
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class more_rows : public sqlite_exception
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{
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using sqlite_exception::sqlite_exception;
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};
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class no_rows : public sqlite_exception
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{
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using sqlite_exception::sqlite_exception;
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};
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class more_statements : public sqlite_exception
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{
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using sqlite_exception::sqlite_exception;
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}; // Prepared statements can only contain one statement
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class invalid_utf16 : public sqlite_exception
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{
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using sqlite_exception::sqlite_exception;
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};
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static void throw_sqlite_error(const int &error_code, const std::string &sql = "")
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{
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switch(error_code & 0xFF)
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{
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#define SQLITE_MODERN_CPP_ERROR_CODE(NAME, name, derived) \
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case SQLITE_##NAME: \
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switch(error_code) \
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{ \
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derived default : throw name(error_code, sql); \
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}
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#define SQLITE_MODERN_CPP_ERROR_CODE_EXTENDED(BASE, SUB, base, sub) \
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case SQLITE_##BASE##_##SUB: \
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throw base##_##sub(error_code, sql);
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#include "lists/error_codes.h"
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#undef SQLITE_MODERN_CPP_ERROR_CODE_EXTENDED
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#undef SQLITE_MODERN_CPP_ERROR_CODE
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default:
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throw sqlite_exception(error_code, sql);
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}
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}
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} // namespace errors
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namespace exceptions = errors;
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} // namespace sqlite
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