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fix issues

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This commit is contained in:
Yadunand Prem 2022-09-29 17:28:44 +08:00
parent bd2d0766ae
commit d8e797ae3a
3 changed files with 11 additions and 13 deletions
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3
Lab4/Applicable.java
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@ -5,9 +5,10 @@
* Contains a single abstract method apply.
* CS2030S Lab 4
* AY22/23 Semester 1
*
* @author Yadunand Prem (10B)
*/
interface Applicable<T> {
<R> Applicable<R> apply(Probably<Immutator<R, T>> probablyImmutator);
<R> Applicable<R> apply(Probably<? extends Immutator<? extends R, ? super T>> probablyImmutator);
}

2
Lab4/Immutatorable.java
View File

@ -9,5 +9,5 @@
*/
interface Immutatorable<T> {
public <R> Immutatorable<R> transform(Immutator<R, T> immutator);
public <R> Immutatorable<R> transform(Immutator<? extends R, ? super T> immutator);
}

19
Lab4/Probably.java
View File

@ -41,7 +41,7 @@ class Probably<T> implements Actionable<T>, Immutatorable<T>, Applicable<T> {
* Unless the value is null, then nothing is
* given again.
*
* @param <T> type T
* @param <T> type T
*
* @param value Probably this is the value
* unless it is null then we say
@ -105,21 +105,18 @@ class Probably<T> implements Actionable<T>, Immutatorable<T>, Applicable<T> {
action.call(this.value);
}
public Probably<T> check(IsModEq eq) {
public Probably<T> check(Immutator<Boolean, ? super T> eq) {
if (this.value == null) {
return none();
}
if (this.value instanceof Integer) {
Integer val = (Integer) this.value;
if (eq.invoke(val)) {
return this;
}
if (eq.invoke(this.value)) {
return this;
}
return none();
}
@Override
public <R> Probably<R> transform(Immutator<R, T> immutator) {
public <R> Probably<R> transform(Immutator<? extends R, ? super T> immutator) {
if (this.value == null) {
return none();
}
@ -127,9 +124,9 @@ class Probably<T> implements Actionable<T>, Immutatorable<T>, Applicable<T> {
}
@Override
public <R> Probably<R> apply(Probably<Immutator<R, T>> probablyImmutator) {
if (this.value != null && probablyImmutator.value != null) {
return just(probablyImmutator.value.invoke(this.value));
public <R> Probably<R> apply(Probably<? extends Immutator<? extends R, ? super T>> probablyImmutator) {
if (probablyImmutator.value != null) {
return this.transform(probablyImmutator.value);
}
return none();
}