Checks reordered for better performance

2011-09-06 11:56:20 +04:00
parent 93a422ae0a
commit f5928be33e
2 changed files with 8 additions and 9 deletions
@@ -81,20 +81,20 @@ public abstract class TypeInfo<T> implements JetObject {
    }

    public final boolean isInstance(Object obj) {
+        if (obj == null) return nullable;
+
        if (obj instanceof JetObject) {
            return ((JetObject) obj).getTypeInfo().isSubtypeOf(this);
        }
-        if (obj == null)
-            return nullable;

        return theClass.isAssignableFrom(obj.getClass());  // TODO
    }

    public final boolean isSubtypeOf(TypeInfo<?> superType) {
-        if (!superType.theClass.isAssignableFrom(theClass)) {
+        if (nullable && !superType.nullable) {
            return false;
        }
-        if (nullable && !superType.nullable) {
+        if (!superType.theClass.isAssignableFrom(theClass)) {
            return false;
        }
        if (projections != null) {