Add *Range.isEmpty(), *Progression.isEmpty()

2014-06-16 18:50:16 +04:00
parent 07378a74d3
commit 751f062f23
8 changed files with 90 additions and 0 deletions
@@ -71,6 +71,8 @@ class GenerateProgressions(out: PrintWriter) : BuiltInsSourceGenerator(out) {

    override fun iterator(): ${t}Iterator = ${t}ProgressionIterator(start, end, increment)

+    public fun isEmpty(): Boolean = if (increment > 0) start > end else start < end
+
    override fun equals(other: Any?): Boolean =
        other is $progression && ${compare("start")} && ${compare("end")} && ${compare("increment")}

@@ -66,6 +66,8 @@ class GenerateRanges(out: PrintWriter) : BuiltInsSourceGenerator(out) {

    override fun iterator(): ${t}Iterator = ${t}ProgressionIterator(start, end, $increment)

+    override fun isEmpty(): Boolean = start > end
+
    override fun equals(other: Any?): Boolean =
        other is $range && ${compare("start")} && ${compare("end")}