protected final void register(boolean isRewrite, LiRhsPart... children) {
for (LiRhsPart part : children) {
if (part == null) continue;
part.setParent(this, isRewrite);
}
}
public static int structuralHashCode(LiRhsPart a[]) {
if (a == null) {
return 0;
}
int result = 1;
for (LiRhsPart element : a) {
result = 31 * result + (element == null ? 0 : element.structuralHashCode());
}
return result;
}
protected final void toString(StringBuilder sb, LiRhsPart[] parts, String separator) {
boolean first = true;
for (LiRhsPart p : parts) {
if (first) {
first = false;
} else {
sb.append(separator);
}
p.toString(sb);
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
StructuralObject that = (StructuralObject) o;
return part.structurallyEquals(that.part);
}
protected static boolean structurallyEquals(LiRhsPart[] left, LiRhsPart[] right) {
if (left == right) {
return true;
}
if (left == null || right == null) {
return false;
}
int length = left.length;
if (right.length != length) {
return false;
}
for (int i = 0; i < length; i++) {
LiRhsPart l = left[i];
LiRhsPart r = right[i];
if (l == null ? r != null : !l.structurallyEquals(r)) return false;
}
return true;
}
@Override
public int hashCode() {
return part.structuralHashCode();
}