[GROOVY-3297] VerifyError on when a syntax error would be more appropriate

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.7
• Fix Version/s: 1.5.8
• Environment: Groovy Version: 1.5.7 JVM: 1.6.0_11; win xp sp 2
• Assignee: Unassigned
• Reporter: Antti Karanta
• Created: 19/Jan/09 05:10
• Updated: 19/Jan/09 08:10
• Resolved: 19/Jan/09 08:10

Description

C:\>groovy -e "(i++)++"
Caught: java.lang.VerifyError: (class: script_from_command_line, method: run signature: ()Ljava/lang/Object;) 
Unable to pop operand off an empty stack

In Java this is not a valid expression, but w/ overloadable operators in Groovy I guess it should be? In any case, VerifyError is not the appropriate thing to do - if this expression is not valid, some sort of syntax error might be better and more informative?