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Parser simplification (incomplete)

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This commit is contained in:
Alexey Milovidov 2022-01-05 05:30:01 +03:00
parent 1f82ab2382
commit 6f40d3a342
2 changed files with 587 additions and 586 deletions
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1114
src/Parsers/ExpressionElementParsers.cpp
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59
src/Parsers/ExpressionElementParsers.h
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@ -228,63 +228,6 @@ protected:
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override; bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
}; };
ASTPtr createFunctionCast(const ASTPtr & expr_ast, const ASTPtr & type_ast);
class ParserCastAsExpression : public IParserBase
{
protected:
const char * getName() const override { return "CAST AS expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserSubstringExpression : public IParserBase
{
protected:
const char * getName() const override { return "SUBSTRING expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserTrimExpression : public IParserBase
{
protected:
const char * getName() const override { return "TRIM expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserLeftExpression : public IParserBase
{
protected:
const char * getName() const override { return "LEFT expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserRightExpression : public IParserBase
{
protected:
const char * getName() const override { return "RIGHT expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserExtractExpression : public IParserBase
{
protected:
const char * getName() const override { return "EXTRACT expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserDateAddExpression : public IParserBase
{
protected:
const char * getName() const override { return "DATE_ADD expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
class ParserDateDiffExpression : public IParserBase
{
protected:
const char * getName() const override { return "DATE_DIFF expression"; }
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
};
/** NULL literal. /** NULL literal.
*/ */
class ParserNull : public IParserBase class ParserNull : public IParserBase
@ -535,4 +478,6 @@ protected:
bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override; bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
}; };
ASTPtr createFunctionCast(const ASTPtr & expr_ast, const ASTPtr & type_ast);
} }