chore: Review comments, share code between equals and compare

Author: Christopher-Chianelli

jpyinterpreter/src/main/java/ai/timefold/jpyinterpreter/types/numeric/PythonDecimal.java

@@ -117,12 +117,8 @@ public String toString() {
     }
 
     public boolean equals(Object o) {
-        if (o instanceof PythonInteger other) {
-            return value.compareTo(new BigDecimal(other.value)) == 0;
-        } else if (o instanceof PythonFloat other) {
-            return value.doubleValue() == other.value;
-        } else if (o instanceof PythonDecimal other) {
-            return value.compareTo(other.value) == 0;
+        if (o instanceof PythonNumber number) {
+            return compareTo(number) == 0;
         } else {
             return false;
         }

jpyinterpreter/src/main/java/ai/timefold/jpyinterpreter/types/numeric/PythonFloat.java

@@ -65,7 +65,6 @@ private static PythonLikeType registerMethods() throws NoSuchMethodException {
                             case "-inf", "-infinity" -> "-Infinity";
                             default -> str.value;
                         };
-                        Double.valueOf("2");
                         return new PythonFloat(Double.parseDouble(literal));
                     } catch (NumberFormatException e) {
                         throw new ValueError("invalid literal for float(): %s".formatted(value));
@@ -232,14 +231,10 @@ public String toString() {
 
     @Override
     public boolean equals(Object o) {
-        if (o instanceof Number) {
-            return ((Number) o).doubleValue() == value;
-        } else if (o instanceof PythonFloat) {
-            return ((PythonFloat) o).value == value;
-        } else if (o instanceof PythonInteger) {
-            return ((PythonInteger) o).getValue().doubleValue() == value;
-        } else if (o instanceof PythonDecimal other) {
-            return new BigDecimal(value).equals(other.value);
+        if (o instanceof Number number) {
+            return number.doubleValue() == value;
+        } else if (o instanceof PythonNumber number) {
+            return compareTo(number) == 0;
         } else {
             return false;
         }

jpyinterpreter/src/main/java/ai/timefold/jpyinterpreter/types/numeric/PythonInteger.java

@@ -276,14 +276,10 @@ public byte asByte() {
 
     @Override
     public boolean equals(Object o) {
-        if (o instanceof Number) {
-            return value.equals(BigInteger.valueOf(((Number) o).longValue()));
-        } else if (o instanceof PythonInteger other) {
-            return other.value.equals(value);
-        } else if (o instanceof PythonFloat other) {
-            return value.doubleValue() == other.value;
-        } else if (o instanceof PythonDecimal other) {
-            return new BigDecimal(value).equals(other.value);
+        if (o instanceof Number number) {
+            return value.equals(BigInteger.valueOf(number.longValue()));
+        } else if (o instanceof PythonNumber number) {
+            return compareTo(number) == 0;
         } else {
             return false;
         }

jpyinterpreter/src/main/java/ai/timefold/jpyinterpreter/types/numeric/PythonNumber.java

@@ -24,17 +24,18 @@ default int compareTo(PythonNumber pythonNumber) {
         if (value instanceof BigInteger self) {
             if (otherValue instanceof BigInteger other) {
                 return self.compareTo(other);
-            } else {
-                return Double.compare(value.longValue(), otherValue.doubleValue());
+            } else if (otherValue instanceof BigDecimal other) {
+                return new BigDecimal(self).compareTo(other);
             }
         }
         if (value instanceof BigDecimal self) {
             if (otherValue instanceof BigDecimal other) {
                 return self.compareTo(other);
-            } else {
-                return Double.compare(value.doubleValue(), otherValue.doubleValue());
+            } else if (otherValue instanceof BigInteger other) {
+                return self.compareTo(new BigDecimal(other));
             }
         }
+        // If comparing against a float, convert both arguments to float
         return Double.compare(value.doubleValue(), otherValue.doubleValue());
     }