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86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
#include <DB/Functions/FunctionFactory.h>
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namespace DB
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{
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/** Эти функции определены в отдельных translation unit-ах.
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* Это сделано для того, чтобы уменьшить потребление оперативки при сборке, и ускорить параллельную сборку.
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*/
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void registerFunctionsArithmetic(FunctionFactory &);
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void registerFunctionsArray(FunctionFactory &);
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void registerFunctionsCoding(FunctionFactory &);
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void registerFunctionsComparison(FunctionFactory &);
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void registerFunctionsConditional(FunctionFactory &);
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void registerFunctionsConversion(FunctionFactory &);
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void registerFunctionsDateTime(FunctionFactory &);
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void registerFunctionsDictionaries(FunctionFactory &);
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void registerFunctionsFormatting(FunctionFactory &);
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void registerFunctionsHashing(FunctionFactory &);
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void registerFunctionsHigherOrder(FunctionFactory &);
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void registerFunctionsLogical(FunctionFactory &);
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void registerFunctionsMiscellaneous(FunctionFactory &);
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void registerFunctionsRandom(FunctionFactory &);
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void registerFunctionsReinterpret(FunctionFactory &);
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void registerFunctionsRound(FunctionFactory &);
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void registerFunctionsString(FunctionFactory &);
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void registerFunctionsStringArray(FunctionFactory &);
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void registerFunctionsStringSearch(FunctionFactory &);
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void registerFunctionsURL(FunctionFactory &);
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void registerFunctionsVisitParam(FunctionFactory &);
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void registerFunctionsMath(FunctionFactory &);
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void registerFunctionsTransform(FunctionFactory &);
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FunctionFactory::FunctionFactory()
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{
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registerFunctionsArithmetic(*this);
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registerFunctionsArray(*this);
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registerFunctionsCoding(*this);
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registerFunctionsComparison(*this);
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registerFunctionsConditional(*this);
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registerFunctionsConversion(*this);
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registerFunctionsDateTime(*this);
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registerFunctionsDictionaries(*this);
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registerFunctionsFormatting(*this);
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registerFunctionsHashing(*this);
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registerFunctionsHigherOrder(*this);
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registerFunctionsLogical(*this);
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registerFunctionsMiscellaneous(*this);
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registerFunctionsRandom(*this);
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registerFunctionsReinterpret(*this);
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registerFunctionsRound(*this);
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registerFunctionsString(*this);
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registerFunctionsStringArray(*this);
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registerFunctionsStringSearch(*this);
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registerFunctionsURL(*this);
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registerFunctionsVisitParam(*this);
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registerFunctionsMath(*this);
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registerFunctionsTransform(*this);
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}
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FunctionPtr FunctionFactory::get(
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const String & name,
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const Context & context) const
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{
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auto res = tryGet(name, context);
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if (!res)
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throw Exception("Unknown function " + name, ErrorCodes::UNKNOWN_FUNCTION);
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return res;
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}
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FunctionPtr FunctionFactory::tryGet(
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const String & name,
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const Context & context) const
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{
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auto it = functions.find(name);
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if (functions.end() != it)
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return it->second(context);
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else
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return {};
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}
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}
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