[GROOVY-2795] recursion does not work with clousures

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Won't Fix
• Affects Version/s: 1.5.6
• Fix Version/s: 1.5.7
• Assignee: Jochen Theodorou
• Reporter: Daniel Sun
• Created: 30/Apr/08 12:26
• Updated: 30/Apr/08 19:52
• Resolved: 30/Apr/08 12:35

Description

The following code can not be executed and a exeception was throwed when I tried to execute it:
groovy.lang.MissingMethodException: No signature of method: Script3.listPaths() is applicable for argument types: (java.io.File) values:

{d:\temp\dos2unix.bat.txt}

def listPaths = { File location ->
    def result = []

    result << location.canonicalPath

    if (location.isDirectory()) {
        File[] files = location.listFiles()
        
        for (f in files) {
            result.addAll(listPaths(f))
        }
    }

    return result
}

listPaths(new File('d:/temp'))

Luckily, we can use the following method which is same with the above closure in terms of function.

Could you tell me why the implementation with closure failed? Thanks!

def listPaths(File location) {
    def result = []

    result << location.canonicalPath

    if (location.isDirectory()) {
        File[] files = location.listFiles()
        
        for (f in files) {
            result.addAll(listPaths(f))
        }
    }

    return result
}

listPaths(new File('d:/temp'))