[GROOVY-5815] The range interface should return the generic type T from getTo() and getFrom()

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.5
• Fix Version/s: 2.1.0-beta-1
• Component/s: groovy-jdk
• Assignee: Cédric Champeau
• Reporter: Andrew Taylor
• Created: 21/Nov/12 12:22
• Updated: 22/Dec/12 01:10
• Resolved: 26/Nov/12 02:41

Description

The groovy.lang.Range type returns Comparable from getTo() and getFrom(). However, Range is a generic interface and the generic type T could be used instead. This is useful when using @TypeChecked or @CompileStatic as it allows groovy to infer the correct type.

Here's a simple test case:

@groovy.transform.CompileStatic
def test(Range<Date> r) {
    println r.to.time
}

def now = new Date()
test(now..now)