1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.dx.gen; 18 19 import com.android.dx.rop.cst.CstBoolean; 20 import com.android.dx.rop.cst.CstByte; 21 import com.android.dx.rop.cst.CstChar; 22 import com.android.dx.rop.cst.CstDouble; 23 import com.android.dx.rop.cst.CstFloat; 24 import com.android.dx.rop.cst.CstInteger; 25 import com.android.dx.rop.cst.CstKnownNull; 26 import com.android.dx.rop.cst.CstLong; 27 import com.android.dx.rop.cst.CstShort; 28 import com.android.dx.rop.cst.CstString; 29 import com.android.dx.rop.cst.CstType; 30 import com.android.dx.rop.cst.TypedConstant; 31 32 /** 33 * Factory for rop constants. 34 */ 35 final class Constants { 36 private Constants() {} 37 38 /** 39 * Returns a rop constant for the specified value. 40 * 41 * @param value null, a boxed primitive, String, Class, or Type. 42 */ 43 static TypedConstant getConstant(Object value) { 44 if (value == null) { 45 return CstKnownNull.THE_ONE; 46 } else if (value instanceof Boolean) { 47 return CstBoolean.make((Boolean) value); 48 } else if (value instanceof Byte) { 49 return CstByte.make((Byte) value); 50 } else if (value instanceof Character) { 51 return CstChar.make((Character) value); 52 } else if (value instanceof Double) { 53 return CstDouble.make(Double.doubleToLongBits((Double) value)); 54 } else if (value instanceof Float) { 55 return CstFloat.make(Float.floatToIntBits((Float) value)); 56 } else if (value instanceof Integer) { 57 return CstInteger.make((Integer) value); 58 } else if (value instanceof Long) { 59 return CstLong.make((Long) value); 60 } else if (value instanceof Short) { 61 return CstShort.make((Short) value); 62 } else if (value instanceof String) { 63 return new CstString((String) value); 64 } else if (value instanceof Class) { 65 return new CstType(Type.get((Class<?>) value).ropType); 66 } else if (value instanceof Type) { 67 return new CstType(((Type) value).ropType); 68 } else { 69 throw new UnsupportedOperationException("Not a constant: " + value); 70 } 71 } 72 } 73
