[GROOVY-7442] spread-dot operator within assert isn't expected with @CompileStatic

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.3
• Fix Version/s: 2.4.6
• Component/s: Static compilation
• Assignee: Shil Sinha
• Reporter: Paul King
• Created: 31/May/15 10:55
• Updated: 22/Feb/16 20:48
• Resolved: 17/Nov/15 05:04

Description

This source:

@groovy.transform.CompileStatic
def myMethod(String a, String b) {
  assert [a, b]*.size() == [5, 5]
}

myMethod('hello', 'world')

Results in this compile error:

BUG! exception in phase 'class generation' in source unit 'ConsoleScript1' In method public java.lang.Object MyMethod(java.lang.String a, java.lang.String b)  { ... }, CompileStack#removeVar: tried to remove a temporary variable with index 3 in wrong order. Current temporary variables=[iterator(index=6,type=java.util.Iterator <E extends java.lang.Object -> java.lang.Object>,holder=false), recorder(index=3,type=java.lang.Object,holder=false)]
    at org.codehaus.groovy.classgen.asm.CompileStack.removeVar(CompileStack.java:226)
    at org.codehaus.groovy.classgen.asm.AssertionWriter.writeAssertStatement(AssertionWriter.java:136)
    at org.codehaus.groovy.classgen.asm.StatementWriter.writeAssert(StatementWriter.java:550)
    at org.codehaus.groovy.classgen.AsmClassGenerator.visitAssertStatement(AsmClassGenerator.java:587)
*/

but this compiles and runs fine:

@groovy.transform.CompileStatic
def myMethod(String a, String b) {
  def result = [a, b]*.size()
  assert result == [5, 5]
}

myMethod('hello', 'world')