[GROOVY-6781] Compound assignments to "mixed type" properties don't type-check

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.4.0
• Component/s: Static Type Checker
• Assignee: Cédric Champeau
• Reporter: Peter Niederwieser
• Created: 11/May/14 13:00
• Updated: 21/Mar/15 07:12
• Resolved: 13/Mar/15 14:35

Description

class Foo {
  // "mixed type" property
  String getBar() {}
  void setBar(Object bar) {}
}

// assume script is @TypeChecked

def foo = new Foo()

// type checks
foo.bar = foo.bar + "def"

// does not type check
// [Static type checking] - Cannot find matching method java.lang.Object#plus
foo.bar += "def"