groovy

Expression underlying a spread map expression is evaluated twice

Details

  • Type: Bug Bug
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: 1.7-beta-1
  • Fix Version/s: 1.8.x, 2.x
  • Component/s: Compiler
  • Labels:
    None
  • Testcase included:
    yes
  • Number of attachments :
    0

Description

class SpreadMapBug extends GroovyTestCase {
    void test() {
        def x = 0
        assertEquals([a:1, b:1], [a:1, *:[b:++x]]) // fails; actual value: [a:1, b:2]
    }
}

Maybe this bug is related to the (strange) AST representation for a spread map expression (at least that's how I found the bug):
"*:[b:++x]" is a MapEntryExpression whose

  • key is a SpreadMapExpression whose expression is a MapExpression representing "[b:++x]"
  • value is a MapExpression representing "[b:++x]".

That makes two MapExpressionS...

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People

  • Assignee:
    Unassigned
    Reporter:
    Peter Niederwieser
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Dates

  • Created:
    Updated: