[GROOVY-5703] CompileStatic - Calling vargarg parameter String is converted to array of strings

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.0.2
• Fix Version/s: 2.0.4
• Labels: CompileStatic compiler
• Environment: Windows 7 64bits, JDK 1.7.0_04
• Assignee: Cédric Champeau
• Reporter: Boaz Nahum
• Created: 12/Sep/12 00:46
• Updated: 21/Sep/12 16:58
• Resolved: 12/Sep/12 04:12

Description

Assume we have this method:

static void printMsgs(String ... msgs) {
    for(String s : msgs) { println s;}
}

Calling it from @CompileStatic:

@CompileStatic
  static void testCS() {
    //Print:
    // H
    // e
    // l
    // l
    // o
    printMsgs("Hello");
  }

The string 'hello' is converted to array of strings.

Calling it from non CompileStatic works fines.

The complete test case:

public class CompileStaticVarArg {

  static void main(String[] args) {


    test();

    println '-' * 20

    testCS()

  }


  static void test() {
    // Print 'hello'
    printMsgs("Hello");
  }

  @CompileStatic
  static void testCS() {
    //Print:
    // H
    // e
    // l
    // l
    // o
    printMsgs("Hello");
  }

  static void printMsgs(String ... msgs) {

    for(String s : msgs) {
      println s;
    }

  }

}