1 package org.simantics.scl.compiler.elaboration.java;
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3 import org.cojen.classfile.TypeDesc;
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4 import org.simantics.scl.compiler.constants.FunctionValue;
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5 import org.simantics.scl.compiler.internal.codegen.references.Val;
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6 import org.simantics.scl.compiler.internal.codegen.utils.Constants;
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7 import org.simantics.scl.compiler.internal.codegen.utils.MethodBuilder;
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8 import org.simantics.scl.compiler.types.TVar;
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9 import org.simantics.scl.compiler.types.Type;
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10 import org.simantics.scl.compiler.types.Types;
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11 import org.simantics.scl.compiler.types.kinds.Kinds;
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13 public class HashCodeFunction extends FunctionValue {
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14 private static final TVar A = Types.var(Kinds.STAR);
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15 public static final HashCodeFunction INSTANCE = new HashCodeFunction();
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17 private HashCodeFunction() {
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18 super(new TVar[] {A}, Types.NO_EFFECTS, Types.INTEGER, A);
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22 public Type applyExact(MethodBuilder mb, Val[] parameters) {
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23 TypeDesc parameterType = mb.getJavaTypeTranslator().getTypeDesc(parameters[0]);
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24 parameters[0].push(mb);
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25 switch(parameterType.getTypeCode()) {
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26 case TypeDesc.VOID_CODE:
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27 mb.loadStaticField(Constants.TUPLE0, "INSTANCE", Constants.TUPLE0);
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28 mb.invokeVirtual("java/lang/Object", "hashCode", TypeDesc.INT, Constants.OBJECTS[1]);
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30 case TypeDesc.OBJECT_CODE:
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31 mb.invokeStatic("java/util/Objects", "hashCode", TypeDesc.INT, Constants.OBJECTS[1]);
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33 case TypeDesc.INT_CODE:
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34 mb.invokeStatic("java/lang/Integer", "hashCode", TypeDesc.INT, new TypeDesc[] {TypeDesc.INT});
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36 case TypeDesc.LONG_CODE:
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37 mb.invokeStatic("java/lang/Long", "hashCode", TypeDesc.LONG, new TypeDesc[] {TypeDesc.LONG});
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39 case TypeDesc.DOUBLE_CODE:
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40 mb.invokeStatic("java/lang/Double", "hashCode", TypeDesc.DOUBLE, new TypeDesc[] {TypeDesc.DOUBLE});
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42 case TypeDesc.FLOAT_CODE:
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43 mb.invokeStatic("java/lang/Float", "hashCode", TypeDesc.FLOAT, new TypeDesc[] {TypeDesc.FLOAT});
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45 case TypeDesc.SHORT_CODE:
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46 mb.invokeStatic("java/lang/Short", "hashCode", TypeDesc.SHORT, new TypeDesc[] {TypeDesc.SHORT});
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49 return Types.INTEGER;
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