[GROOVY-3401] Ternary operator ?: does not handle newline before ":" gracefully

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.8.1, 1.9-beta-1, 1.7.11
• Assignee: Guillaume Sauthier
• Reporter: Jon Cox
• Created: 09/Mar/09 16:05
• Updated: 28/Mar/14 02:03
• Resolved: 15/Jun/11 04:31

Description

It seems like Groovy should be able to handle "Case 5" below,
but instead it reports a compile-time error.

//-----------------------
//      Case 1:  OK
//-----------------------
bar =  0 ?  "moo" : "cow"


//-----------------------
//      Case 2:  OK
//-----------------------
bar =  0 ?
       "moo" : "cow"

//-----------------------
//      Case 3:  OK
//-----------------------
bar =  0 ?  "moo" :
       "cow"

//-----------------------
//      Case 4:  OK
//-----------------------
bar =  0 ?
       "moo" :
       "cow"

//---------------------------------------------------
//      Case 5:  ERROR.
//
//      Compiler says:
//              expecting ':', found '<newline>'
//---------------------------------------------------
bar =  0 ? "moo"
         : "cow"


//-----------------------------------------------------
//      Case 6:  OK
//
//          Groovy cannot figure out that this is a
//          valid ternary without the help of the '\'
//          line continuation escape.  How come?
//
//-----------------------------------------------------
bar =  0 ? "moo"        \
         : "cow"

Issue Links

• is duplicated by: GROOVY-4464 Loosen white space restrictions