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  1. Groovy
  2. GROOVY-7189

inconsistent stack height error combining @CompileStatic and chained spread-based invocations

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.3.4
    • 2.3.7
    • None
    • None

    Description

      Combining a chain of spread-based calls in a method marked as CompileStatic seems to generate that won't pass verification.

      package bug

import groovy.transform.CompileStatic

class Main2 {
    @CompileStatic
    static void main(String[] args) {
        def List<File> files = []
        def urls = files*.toURI()*.toURL()
        println "OK!"
    }
}

Main2.main()

      The code above fails with:

      Caught: java.lang.VerifyError: (class: bug/Main2, method: main signature: ([Ljava/lang/String;)V) Inconsistent stack hei
ght 3 != 2
java.lang.VerifyError: (class: bug/Main2, method: main signature: ([Ljava/lang/String;)V) Inconsistent stack height 3 !=
 2
	at bug.test2.run(test2.groovy:14)

      Removing the second use of the spread operator, or replacing any of the occurrences with a use of collect works around the issue.

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            melix Cédric Champeau
            chaves Rafael Chaves
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            Dates

              Created:
              Updated:
              Resolved: