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70d1adfe4b
* save format string for NetException * format exceptions * format exceptions 2 * format exceptions 3 * format exceptions 4 * format exceptions 5 * format exceptions 6 * fix * format exceptions 7 * format exceptions 8 * Update MergeTreeIndexGin.cpp * Update AggregateFunctionMap.cpp * Update AggregateFunctionMap.cpp * fix
92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
#pragma once
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#include <Parsers/IAST.h>
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#include <Parsers/IParserBase.h>
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#include <Parsers/CommonParsers.h>
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#include <unordered_map>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int NOT_IMPLEMENTED;
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}
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namespace MySQLParser
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{
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struct OptionDescribe
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{
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const char * usage_name;
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String option_name;
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std::shared_ptr<IParser> value_parser;
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OptionDescribe(const char * usage_name_, const String & option_name_, const std::shared_ptr<IParser> & value_parser_)
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:usage_name(usage_name_), option_name(option_name_), value_parser(value_parser_)
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{
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}
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};
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class ASTDeclareOptions : public IAST
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{
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public:
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std::unordered_map<String, ASTPtr> changes;
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ASTPtr clone() const override;
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String getID(char /*delimiter*/) const override { return "options declaration"; }
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protected:
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void formatImpl(const FormatSettings & /*settings*/, FormatState & /*state*/, FormatStateStacked /*frame*/) const override
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{
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throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method formatImpl is not supported by MySQLParser::ASTDeclareOptions.");
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}
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};
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class ParserAlwaysTrue : public IParserBase
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{
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public:
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const char * getName() const override { return "always true"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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class ParserAlwaysFalse : public IParserBase
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{
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public:
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const char * getName() const override { return "always false"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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/// identifier, string literal, binary keyword
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struct ParserCharsetOrCollateName : public IParserBase
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{
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protected:
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const char * getName() const override { return "charset or collate name"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected &) override;
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};
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template <bool recursive>
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class ParserDeclareOptionImpl : public IParserBase
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{
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protected:
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std::vector<OptionDescribe> options_collection;
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const char * getName() const override { return "option declaration"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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public:
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ParserDeclareOptionImpl(const std::vector<OptionDescribe> & options_collection_) : options_collection(options_collection_) {}
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};
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using ParserDeclareOption = ParserDeclareOptionImpl<false>;
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using ParserDeclareOptions = ParserDeclareOptionImpl<true>;
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}
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}
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