61 regels
2.4 KiB
C++
61 regels
2.4 KiB
C++
#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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class sqlite_exception: public std::runtime_error {
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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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sqlite_exception(int code, std::string sql): runtime_error(sqlite3_errstr(code)), code(code), sql(sql) {}
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int get_code() const {return code & 0xFF;}
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int get_extended_code() const {return code;}
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std::string get_sql() const {return sql;}
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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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//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 { using sqlite_exception::sqlite_exception; };\
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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 { using base::base; };
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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 { using sqlite_exception::sqlite_exception; };
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class no_rows: public sqlite_exception { using sqlite_exception::sqlite_exception; };
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class more_statements: public sqlite_exception { using sqlite_exception::sqlite_exception; }; // Prepared statements can only contain one statement
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class invalid_utf16: public sqlite_exception { using sqlite_exception::sqlite_exception; };
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static void throw_sqlite_error(const int& error_code, const std::string &sql = "") {
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switch(error_code & 0xFF) {
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#define SQLITE_MODERN_CPP_ERROR_CODE(NAME,name,derived) \
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case SQLITE_ ## NAME: switch(error_code) { \
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derived \
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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: 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: throw sqlite_exception(error_code, sql);
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}
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}
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}
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namespace exceptions = errors;
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}
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