#69
  • Created on
    2011-12-02 17:26
  • Reported by
    maxime.levesque
  • Status
    New
  • Priority
    Normal (3)
  • Assigned to
    -
  • Milestone
    0.9.6
  • Plan Level
    -
  • Due Date
    -

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Add new subtask or bug

Inconsistency of Option[A] === A between NumericalTypeExpression and NonNumericalTypeExpression

The following compiles :

    Option(1) === 1
    1 === Option(1)

but not
    Option("") === ""
    "" === Option("")


The cause is here :

https://github.com/max-l/Squeryl/blob/master/src/main/scala/org/squeryl/dsl/TypeArithmetic.scala#L444

  implicit def emulateSqlTyping1[A](e: NonNumericalExpression[Option[A]]): NonNumericalExpression[A] = new NonNumericalInputOnlyTypeConversion(e)
  implicit def emulateSqlTyping2[A](e: NumericalExpression[Option[A]]): NumericalExpression[A] = new NumericalInputOnlyTypeConversion(e)


emulateSqlTyping1 does not work (it doesn't get applied) while emulateSqlTyping2 does
User picture
  on 2011-12-02 19:50 *
By maxime.levesque
Description changed from h2. Arguments for : # SQ... to The following compiles :
Summary changed from Investigate the possibility of === (equality expression) to allow A === Option[A] or Option[A] === A to In consistency of A === Option[A] or Option[A] === A between NumericalTypeExpression and NonNumericalTypeExpression
User picture
  on 2011-12-02 19:50 *
By maxime.levesque
Summary changed from In consistency of A === Option[A] or Option[A] === A between NumericalTypeExpression and NonNumericalTypeExpression to Inconsistency of Option[A] === A between NumericalTypeExpression and NonNumericalTypeExpression
User picture
  on 2011-12-21 17:26 *
By maxime.levesque
Milestone set to 0.9.6