Gleipnir/jet
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Simplify literal expressions.

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go-jet 2026-02-02 13:21:35 +01:00
parent 4995a90483
commit 0e495a279e
26 changed files with 233 additions and 616 deletions
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47
mysql/dialect.go
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@ -12,8 +12,6 @@ var Dialect = newDialect()
func newDialect() jet.Dialect {
operatorSerializeOverrides := map[string]jet.SerializeOverride{}
operatorSerializeOverrides[jet.StringRegexpLikeOperator] = mysqlREGEXPLIKEoperator
operatorSerializeOverrides[jet.StringNotRegexpLikeOperator] = mysqlNOTREGEXPLIKEoperator
operatorSerializeOverrides["IS DISTINCT FROM"] = mysqlISDISTINCTFROM
operatorSerializeOverrides["IS NOT DISTINCT FROM"] = mysqlISNOTDISTINCTFROM
operatorSerializeOverrides["/"] = mysqlDivision
@ -52,6 +50,7 @@ func newDialect() jet.Dialect {
}
return expr
},
RegexpLike: regexpLikeOperator,
}
return jet.NewDialect(mySQLDialectParams)
@ -144,20 +143,12 @@ func mysqlISDISTINCTFROM(expressions ...jet.Serializer) jet.SerializerFunc {
}
}
func mysqlREGEXPLIKEoperator(expressions ...jet.Serializer) jet.SerializerFunc {
func regexpLikeOperator(str StringExpression, not bool, pattern StringExpression, caseSensitive bool) jet.SerializerFunc {
return func(statement jet.StatementType, out *jet.SQLBuilder, options ...jet.SerializeOption) {
if len(expressions) < 2 {
panic("jet: invalid number of expressions for operator")
}
jet.Serialize(str, statement, out, options...)
jet.Serialize(expressions[0], statement, out, options...)
caseSensitive := false
if len(expressions) >= 3 {
if stringLiteral, ok := expressions[2].(jet.LiteralExpression); ok {
caseSensitive = stringLiteral.Value().(bool)
}
if not {
out.WriteString("NOT")
}
out.WriteString("REGEXP")
@ -166,33 +157,7 @@ func mysqlREGEXPLIKEoperator(expressions ...jet.Serializer) jet.SerializerFunc {
out.WriteString("BINARY")
}
jet.Serialize(expressions[1], statement, out, options...)
}
}
func mysqlNOTREGEXPLIKEoperator(expressions ...jet.Serializer) jet.SerializerFunc {
return func(statement jet.StatementType, out *jet.SQLBuilder, options ...jet.SerializeOption) {
if len(expressions) < 2 {
panic("jet: invalid number of expressions for operator")
}
jet.Serialize(expressions[0], statement, out, options...)
caseSensitive := false
if len(expressions) >= 3 {
if stringLiteral, ok := expressions[2].(jet.LiteralExpression); ok {
caseSensitive = stringLiteral.Value().(bool)
}
}
out.WriteString("NOT REGEXP")
if caseSensitive {
out.WriteString("BINARY")
}
jet.Serialize(expressions[1], statement, out, options...)
jet.Serialize(pattern, statement, out, options...)
}
}