Jack Conradson
commit
8871fddba7
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@ -36,27 +36,27 @@ import java.util.stream.Stream;
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/**
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* Support for dynamic type (def).
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* <p>
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* Dynamic types can invoke methods, load/store fields, and be passed as parameters to operators without
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* compile-time type information.
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* Dynamic types can invoke methods, load/store fields, and be passed as parameters to operators without
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* compile-time type information.
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* <p>
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* Dynamic methods, loads, stores, and array/list/map load/stores involve locating the appropriate field
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* or method depending on the receiver's class. For these, we emit an {@code invokedynamic} instruction that,
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* for each new type encountered will query a corresponding {@code lookupXXX} method to retrieve the appropriate
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* method. In most cases, the {@code lookupXXX} methods here will only be called once for a given call site, because
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* caching ({@link DynamicCallSite}) generally works: usually all objects at any call site will be consistently
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* the same type (or just a few types). In extreme cases, if there is type explosion, they may be called every
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* method. In most cases, the {@code lookupXXX} methods here will only be called once for a given call site, because
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* caching ({@link DynamicCallSite}) generally works: usually all objects at any call site will be consistently
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* the same type (or just a few types). In extreme cases, if there is type explosion, they may be called every
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* single time, but simplicity is still more valuable than performance in this code.
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*/
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public class Def {
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/**
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/**
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* Looks up handle for a dynamic method call.
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* <p>
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* A dynamic method call for variable {@code x} of type {@code def} looks like:
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* {@code x.method(args...)}
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* <p>
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* This method traverses {@code recieverClass}'s class hierarchy (including interfaces)
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* until it finds a matching whitelisted method. If one is not found, it throws an exception.
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* This method traverses {@code recieverClass}'s class hierarchy (including interfaces)
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* until it finds a matching whitelisted method. If one is not found, it throws an exception.
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* Otherwise it returns a handle to the matching method.
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* <p>
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* @param receiverClass Class of the object to invoke the method on.
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@ -117,7 +117,7 @@ public class Def {
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throw new AssertionError(e);
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}
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}
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// TODO: Once Java has a factory for those in java.lang.invoke.MethodHandles, use it:
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/** Helper class for isolating MethodHandles and methods to get the length of arrays
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@ -126,7 +126,7 @@ public class Def {
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*/
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private static final class ArrayLengthHelper {
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private ArrayLengthHelper() {}
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private static final Lookup PRIV_LOOKUP = MethodHandles.lookup();
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private static final Map<Class<?>,MethodHandle> ARRAY_TYPE_MH_MAPPING = Collections.unmodifiableMap(
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Stream.of(boolean[].class, byte[].class, short[].class, int[].class, long[].class,
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@ -140,7 +140,7 @@ public class Def {
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}))
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);
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private static final MethodHandle OBJECT_ARRAY_MH = ARRAY_TYPE_MH_MAPPING.get(Object[].class);
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static int getArrayLength(boolean[] array) { return array.length; }
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static int getArrayLength(byte[] array) { return array.length; }
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static int getArrayLength(short[] array) { return array.length; }
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@ -150,7 +150,7 @@ public class Def {
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static int getArrayLength(float[] array) { return array.length; }
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static int getArrayLength(double[] array) { return array.length; }
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static int getArrayLength(Object[] array) { return array.length; }
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public static MethodHandle arrayLengthGetter(Class<?> arrayType) {
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if (!arrayType.isArray()) {
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throw new IllegalArgumentException("type must be an array");
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@ -160,13 +160,13 @@ public class Def {
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OBJECT_ARRAY_MH.asType(OBJECT_ARRAY_MH.type().changeParameterType(0, arrayType));
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}
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}
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/** Returns an array length getter MethodHandle for the given array type */
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public static MethodHandle arrayLengthGetter(Class<?> arrayType) {
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return ArrayLengthHelper.arrayLengthGetter(arrayType);
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}
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/**
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/**
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* Looks up handle for a dynamic field getter (field load)
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* <p>
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* A dynamic field load for variable {@code x} of type {@code def} looks like:
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@ -182,8 +182,8 @@ public class Def {
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* <li>The value in a list at element {@code field} (integer) when the receiver is a List.
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* </ul>
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* <p>
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* This method traverses {@code recieverClass}'s class hierarchy (including interfaces)
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* until it finds a matching whitelisted getter. If one is not found, it throws an exception.
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* This method traverses {@code recieverClass}'s class hierarchy (including interfaces)
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* until it finds a matching whitelisted getter. If one is not found, it throws an exception.
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* Otherwise it returns a handle to the matching getter.
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* <p>
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* @param receiverClass Class of the object to retrieve the field from.
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@ -229,17 +229,17 @@ public class Def {
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// parsing the same integer millions of times!
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try {
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int index = Integer.parseInt(name);
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return MethodHandles.insertArguments(LIST_GET, 1, index);
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return MethodHandles.insertArguments(LIST_GET, 1, index);
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} catch (NumberFormatException exception) {
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throw new IllegalArgumentException( "Illegal list shortcut value [" + name + "].");
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}
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}
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throw new IllegalArgumentException("Unable to find dynamic field [" + name + "] " +
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"for class [" + receiverClass.getCanonicalName() + "].");
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}
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/**
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/**
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* Looks up handle for a dynamic field setter (field store)
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* <p>
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* A dynamic field store for variable {@code x} of type {@code def} looks like:
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@ -253,8 +253,8 @@ public class Def {
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* <li>The value in a list at element {@code field} (integer) when the receiver is a List.
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* </ul>
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* <p>
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* This method traverses {@code recieverClass}'s class hierarchy (including interfaces)
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* until it finds a matching whitelisted setter. If one is not found, it throws an exception.
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* This method traverses {@code recieverClass}'s class hierarchy (including interfaces)
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* until it finds a matching whitelisted setter. If one is not found, it throws an exception.
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* Otherwise it returns a handle to the matching setter.
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* <p>
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* @param receiverClass Class of the object to retrieve the field from.
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@ -297,12 +297,12 @@ public class Def {
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// parsing the same integer millions of times!
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try {
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int index = Integer.parseInt(name);
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return MethodHandles.insertArguments(LIST_SET, 1, index);
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return MethodHandles.insertArguments(LIST_SET, 1, index);
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} catch (NumberFormatException exception) {
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throw new IllegalArgumentException( "Illegal list shortcut value [" + name + "].");
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}
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}
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throw new IllegalArgumentException("Unable to find dynamic field [" + name + "] " +
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"for class [" + receiverClass.getCanonicalName() + "].");
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}
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@ -325,7 +325,7 @@ public class Def {
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throw new IllegalArgumentException("Attempting to address a non-array type " +
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"[" + receiverClass.getCanonicalName() + "] as an array.");
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}
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/**
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* Returns a method handle to do an array load.
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* @param receiverClass Class of the array to load the value from
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@ -392,10 +392,10 @@ public class Def {
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} else if (right instanceof Character) {
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if (left instanceof Double) {
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return ((Number)left).doubleValue() * (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() * (char)right;
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} else if (left instanceof Long) {
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return ((Number)left).longValue() * (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() * (char)right;
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} else {
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return ((Number)left).intValue() * (char)right;
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}
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@ -404,10 +404,10 @@ public class Def {
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if (right instanceof Number) {
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if (right instanceof Double) {
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return (char)left * ((Number)right).doubleValue();
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} else if (right instanceof Float) {
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return (char)left * ((Number)right).floatValue();
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} else if (right instanceof Long) {
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return (char)left * ((Number)right).longValue();
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} else if (right instanceof Float) {
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return (char)left * ((Number)right).floatValue();
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} else {
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return (char)left * ((Number)right).intValue();
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}
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@ -435,10 +435,10 @@ public class Def {
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} else if (right instanceof Character) {
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if (left instanceof Double) {
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return ((Number)left).doubleValue() / (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() / (char)right;
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} else if (left instanceof Long) {
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return ((Number)left).longValue() / (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() / (char)right;
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} else {
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return ((Number)left).intValue() / (char)right;
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}
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@ -447,10 +447,10 @@ public class Def {
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if (right instanceof Number) {
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if (right instanceof Double) {
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return (char)left / ((Number)right).doubleValue();
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} else if (right instanceof Float) {
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return (char)left / ((Number)right).floatValue();
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} else if (right instanceof Long) {
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return (char)left / ((Number)right).longValue();
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} else if (right instanceof Float) {
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return (char)left / ((Number)right).floatValue();
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} else {
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return (char)left / ((Number)right).intValue();
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}
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@ -478,10 +478,10 @@ public class Def {
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} else if (right instanceof Character) {
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if (left instanceof Double) {
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return ((Number)left).doubleValue() % (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() % (char)right;
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} else if (left instanceof Long) {
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return ((Number)left).longValue() % (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() % (char)right;
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} else {
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return ((Number)left).intValue() % (char)right;
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}
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@ -490,10 +490,10 @@ public class Def {
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if (right instanceof Number) {
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if (right instanceof Double) {
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return (char)left % ((Number)right).doubleValue();
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} else if (right instanceof Float) {
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return (char)left % ((Number)right).floatValue();
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} else if (right instanceof Long) {
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return (char)left % ((Number)right).longValue();
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} else if (right instanceof Float) {
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return (char)left % ((Number)right).floatValue();
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} else {
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return (char)left % ((Number)right).intValue();
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}
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@ -523,10 +523,10 @@ public class Def {
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} else if (right instanceof Character) {
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if (left instanceof Double) {
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return ((Number)left).doubleValue() + (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() + (char)right;
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} else if (left instanceof Long) {
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return ((Number)left).longValue() + (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() + (char)right;
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} else {
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return ((Number)left).intValue() + (char)right;
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}
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@ -535,10 +535,10 @@ public class Def {
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if (right instanceof Number) {
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if (right instanceof Double) {
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return (char)left + ((Number)right).doubleValue();
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} else if (right instanceof Float) {
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return (char)left + ((Number)right).floatValue();
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} else if (right instanceof Long) {
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return (char)left + ((Number)right).longValue();
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} else if (right instanceof Float) {
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return (char)left + ((Number)right).floatValue();
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} else {
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return (char)left + ((Number)right).intValue();
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}
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@ -566,10 +566,10 @@ public class Def {
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} else if (right instanceof Character) {
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if (left instanceof Double) {
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return ((Number)left).doubleValue() - (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() - (char)right;
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} else if (left instanceof Long) {
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return ((Number)left).longValue() - (char)right;
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} else if (left instanceof Float) {
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return ((Number)left).floatValue() - (char)right;
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} else {
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return ((Number)left).intValue() - (char)right;
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}
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@ -578,10 +578,10 @@ public class Def {
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if (right instanceof Number) {
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if (right instanceof Double) {
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return (char)left - ((Number)right).doubleValue();
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} else if (right instanceof Float) {
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return (char)left - ((Number)right).floatValue();
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} else if (right instanceof Long) {
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return (char)left - ((Number)right).longValue();
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} else if (right instanceof Float) {
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return (char)left - ((Number)right).floatValue();
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} else {
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return (char)left - ((Number)right).intValue();
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}
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@ -598,14 +598,14 @@ public class Def {
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if (left instanceof Number) {
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if (right instanceof Number) {
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if (left instanceof Double || right instanceof Double ||
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left instanceof Float || right instanceof Float ||
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left instanceof Long || right instanceof Long) {
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left instanceof Long || right instanceof Long ||
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left instanceof Float || right instanceof Float) {
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return ((Number)left).longValue() << ((Number)right).longValue();
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} else {
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return ((Number)left).intValue() << ((Number)right).intValue();
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}
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} else if (right instanceof Character) {
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if (left instanceof Double || left instanceof Float || left instanceof Long) {
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if (left instanceof Double || left instanceof Long || left instanceof Float) {
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return ((Number)left).longValue() << (char)right;
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} else {
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return ((Number)left).intValue() << (char)right;
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@ -613,7 +613,7 @@ public class Def {
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}
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} else if (left instanceof Character) {
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if (right instanceof Number) {
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if (right instanceof Double || right instanceof Float || right instanceof Long) {
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if (right instanceof Double || right instanceof Long || right instanceof Float) {
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return (long)(char)left << ((Number)right).longValue();
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} else {
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return (char)left << ((Number)right).intValue();
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@ -631,14 +631,14 @@ public class Def {
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if (left instanceof Number) {
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if (right instanceof Number) {
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if (left instanceof Double || right instanceof Double ||
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left instanceof Float || right instanceof Float ||
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left instanceof Long || right instanceof Long) {
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left instanceof Long || right instanceof Long ||
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left instanceof Float || right instanceof Float) {
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return ((Number)left).longValue() >> ((Number)right).longValue();
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} else {
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return ((Number)left).intValue() >> ((Number)right).intValue();
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}
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} else if (right instanceof Character) {
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if (left instanceof Double || left instanceof Float || left instanceof Long) {
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if (left instanceof Double || left instanceof Long || left instanceof Float) {
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return ((Number)left).longValue() >> (char)right;
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} else {
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return ((Number)left).intValue() >> (char)right;
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@ -646,7 +646,7 @@ public class Def {
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}
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} else if (left instanceof Character) {
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if (right instanceof Number) {
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if (right instanceof Double || right instanceof Float || right instanceof Long) {
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if (right instanceof Double || right instanceof Long || right instanceof Float) {
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return (long)(char)left >> ((Number)right).longValue();
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} else {
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return (char)left >> ((Number)right).intValue();
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@ -664,14 +664,14 @@ public class Def {
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if (left instanceof Number) {
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if (right instanceof Number) {
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if (left instanceof Double || right instanceof Double ||
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left instanceof Float || right instanceof Float ||
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left instanceof Long || right instanceof Long) {
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left instanceof Long || right instanceof Long ||
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left instanceof Float || right instanceof Float) {
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return ((Number)left).longValue() >>> ((Number)right).longValue();
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} else {
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return ((Number)left).intValue() >>> ((Number)right).intValue();
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}
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} else if (right instanceof Character) {
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if (left instanceof Double || left instanceof Float || left instanceof Long) {
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if (left instanceof Double || left instanceof Long || left instanceof Float) {
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return ((Number)left).longValue() >>> (char)right;
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} else {
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return ((Number)left).intValue() >>> (char)right;
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@ -679,7 +679,7 @@ public class Def {
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}
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} else if (left instanceof Character) {
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if (right instanceof Number) {
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if (right instanceof Double || right instanceof Float || right instanceof Long) {
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if (right instanceof Double || right instanceof Long || right instanceof Float) {
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return (long)(char)left >>> ((Number)right).longValue();
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} else {
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return (char)left >>> ((Number)right).intValue();
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@ -699,14 +699,14 @@ public class Def {
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} else if (left instanceof Number) {
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if (right instanceof Number) {
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if (left instanceof Double || right instanceof Double ||
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left instanceof Float || right instanceof Float ||
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left instanceof Long || right instanceof Long) {
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left instanceof Long || right instanceof Long ||
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left instanceof Float || right instanceof Float) {
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return ((Number)left).longValue() & ((Number)right).longValue();
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} else {
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return ((Number)left).intValue() & ((Number)right).intValue();
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}
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} else if (right instanceof Character) {
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if (left instanceof Double || left instanceof Float || left instanceof Long) {
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if (left instanceof Double || left instanceof Long || left instanceof Float) {
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return ((Number)left).longValue() & (char)right;
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} else {
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return ((Number)left).intValue() & (char)right;
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@ -714,7 +714,7 @@ public class Def {
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}
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} else if (left instanceof Character) {
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if (right instanceof Number) {
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if (right instanceof Double || right instanceof Float || right instanceof Long) {
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if (right instanceof Double || right instanceof Long || right instanceof Float) {
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return (char)left & ((Number)right).longValue();
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} else {
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return (char)left & ((Number)right).intValue();
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@ -734,14 +734,14 @@ public class Def {
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} else if (left instanceof Number) {
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if (right instanceof Number) {
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if (left instanceof Double || right instanceof Double ||
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left instanceof Float || right instanceof Float ||
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left instanceof Long || right instanceof Long) {
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left instanceof Long || right instanceof Long ||
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left instanceof Float || right instanceof Float) {
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return ((Number)left).longValue() ^ ((Number)right).longValue();
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} else {
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return ((Number)left).intValue() ^ ((Number)right).intValue();
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}
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} else if (right instanceof Character) {
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if (left instanceof Double || left instanceof Float || left instanceof Long) {
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if (left instanceof Double || left instanceof Long || left instanceof Float) {
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return ((Number)left).longValue() ^ (char)right;
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} else {
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return ((Number)left).intValue() ^ (char)right;
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||||
|
|
@ -749,7 +749,7 @@ public class Def {
|
|||
}
|
||||
} else if (left instanceof Character) {
|
||||
if (right instanceof Number) {
|
||||
if (right instanceof Double || right instanceof Float || right instanceof Long) {
|
||||
if (right instanceof Double || right instanceof Long || right instanceof Float) {
|
||||
return (char)left ^ ((Number)right).longValue();
|
||||
} else {
|
||||
return (char)left ^ ((Number)right).intValue();
|
||||
|
|
@ -769,14 +769,14 @@ public class Def {
|
|||
} else if (left instanceof Number) {
|
||||
if (right instanceof Number) {
|
||||
if (left instanceof Double || right instanceof Double ||
|
||||
left instanceof Float || right instanceof Float ||
|
||||
left instanceof Long || right instanceof Long) {
|
||||
left instanceof Long || right instanceof Long ||
|
||||
left instanceof Float || right instanceof Float) {
|
||||
return ((Number)left).longValue() | ((Number)right).longValue();
|
||||
} else {
|
||||
return ((Number)left).intValue() | ((Number)right).intValue();
|
||||
}
|
||||
} else if (right instanceof Character) {
|
||||
if (left instanceof Double || left instanceof Float || left instanceof Long) {
|
||||
if (left instanceof Double || left instanceof Long || left instanceof Float) {
|
||||
return ((Number)left).longValue() | (char)right;
|
||||
} else {
|
||||
return ((Number)left).intValue() | (char)right;
|
||||
|
|
@ -784,7 +784,7 @@ public class Def {
|
|||
}
|
||||
} else if (left instanceof Character) {
|
||||
if (right instanceof Number) {
|
||||
if (right instanceof Double || right instanceof Float || right instanceof Long) {
|
||||
if (right instanceof Double || right instanceof Long || right instanceof Float) {
|
||||
return (char)left | ((Number)right).longValue();
|
||||
} else {
|
||||
return (char)left | ((Number)right).intValue();
|
||||
|
|
@ -869,10 +869,10 @@ public class Def {
|
|||
} else if (right instanceof Character) {
|
||||
if (left instanceof Double) {
|
||||
return ((Number)left).doubleValue() < (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() < (char)right;
|
||||
} else if (left instanceof Long) {
|
||||
return ((Number)left).longValue() < (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() < (char)right;
|
||||
} else {
|
||||
return ((Number)left).intValue() < (char)right;
|
||||
}
|
||||
|
|
@ -881,10 +881,10 @@ public class Def {
|
|||
if (right instanceof Number) {
|
||||
if (right instanceof Double) {
|
||||
return (char)left < ((Number)right).doubleValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left < ((Number)right).floatValue();
|
||||
} else if (right instanceof Long) {
|
||||
return (char)left < ((Number)right).longValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left < ((Number)right).floatValue();
|
||||
} else {
|
||||
return (char)left < ((Number)right).intValue();
|
||||
}
|
||||
|
|
@ -912,10 +912,10 @@ public class Def {
|
|||
} else if (right instanceof Character) {
|
||||
if (left instanceof Double) {
|
||||
return ((Number)left).doubleValue() <= (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() <= (char)right;
|
||||
} else if (left instanceof Long) {
|
||||
return ((Number)left).longValue() <= (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() <= (char)right;
|
||||
} else {
|
||||
return ((Number)left).intValue() <= (char)right;
|
||||
}
|
||||
|
|
@ -924,10 +924,10 @@ public class Def {
|
|||
if (right instanceof Number) {
|
||||
if (right instanceof Double) {
|
||||
return (char)left <= ((Number)right).doubleValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left <= ((Number)right).floatValue();
|
||||
} else if (right instanceof Long) {
|
||||
return (char)left <= ((Number)right).longValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left <= ((Number)right).floatValue();
|
||||
} else {
|
||||
return (char)left <= ((Number)right).intValue();
|
||||
}
|
||||
|
|
@ -955,10 +955,10 @@ public class Def {
|
|||
} else if (right instanceof Character) {
|
||||
if (left instanceof Double) {
|
||||
return ((Number)left).doubleValue() > (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() > (char)right;
|
||||
} else if (left instanceof Long) {
|
||||
return ((Number)left).longValue() > (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() > (char)right;
|
||||
} else {
|
||||
return ((Number)left).intValue() > (char)right;
|
||||
}
|
||||
|
|
@ -967,10 +967,10 @@ public class Def {
|
|||
if (right instanceof Number) {
|
||||
if (right instanceof Double) {
|
||||
return (char)left > ((Number)right).doubleValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left > ((Number)right).floatValue();
|
||||
} else if (right instanceof Long) {
|
||||
return (char)left > ((Number)right).longValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left > ((Number)right).floatValue();
|
||||
} else {
|
||||
return (char)left > ((Number)right).intValue();
|
||||
}
|
||||
|
|
@ -998,10 +998,10 @@ public class Def {
|
|||
} else if (right instanceof Character) {
|
||||
if (left instanceof Double) {
|
||||
return ((Number)left).doubleValue() >= (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() >= (char)right;
|
||||
} else if (left instanceof Long) {
|
||||
return ((Number)left).longValue() >= (char)right;
|
||||
} else if (left instanceof Float) {
|
||||
return ((Number)left).floatValue() >= (char)right;
|
||||
} else {
|
||||
return ((Number)left).intValue() >= (char)right;
|
||||
}
|
||||
|
|
@ -1010,10 +1010,10 @@ public class Def {
|
|||
if (right instanceof Number) {
|
||||
if (right instanceof Double) {
|
||||
return (char)left >= ((Number)right).doubleValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left >= ((Number)right).floatValue();
|
||||
} else if (right instanceof Long) {
|
||||
return (char)left >= ((Number)right).longValue();
|
||||
} else if (right instanceof Float) {
|
||||
return (char)left >= ((Number)right).floatValue();
|
||||
} else {
|
||||
return (char)left >= ((Number)right).intValue();
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue