Github user paplorinc commented on a diff in the pull request:
https://github.com/apache/groovy/pull/360#discussion_r69197616
--- Diff: src/main/groovy/lang/IntRange.java ---
@@ -377,40 +382,52 @@ public boolean containsAll(Collection other) {
@Override
public void step(int step, Closure closure) {
- if (step == 0) {
- if (!getFrom().equals(getTo())) {
+ step((Number) step, closure);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void step(Number step, Closure closure) {
+ final Long from = getFrom().longValue();
+ final Long to = getTo().longValue();
+
+ if (compareEqual(step, 0)) {
+ if (compareNotEqual(from, to)) {
throw new GroovyRuntimeException("Infinite loop detected
due to step size of 0");
} else {
return; // from == to and step == 0, nothing to do, so
return
}
}
- if (isReverse()) {
- step = -step;
+ boolean isAscending = !isReverse();
+ if (compareLessThan(step, 0)) {
+ step = multiply(step, -1);
+ isAscending = !isAscending;
--- End diff --
if the step is negative, we're going backwards, i.e. it's not ascending
anymore
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