diff options
Diffstat (limited to 'dx/src/com/android/dx/rop/cst/CstDouble.java')
-rw-r--r-- | dx/src/com/android/dx/rop/cst/CstDouble.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/dx/src/com/android/dx/rop/cst/CstDouble.java b/dx/src/com/android/dx/rop/cst/CstDouble.java new file mode 100644 index 0000000..8f1766f --- /dev/null +++ b/dx/src/com/android/dx/rop/cst/CstDouble.java @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.dx.rop.cst; + +import com.android.dx.rop.type.Type; +import com.android.dx.util.Hex; + +/** + * Constants of type {@code CONSTANT_Double_info}. + */ +public final class CstDouble + extends CstLiteral64 { + /** {@code non-null;} instance representing {@code 0} */ + public static final CstDouble VALUE_0 = + new CstDouble(Double.doubleToLongBits(0.0)); + + /** {@code non-null;} instance representing {@code 1} */ + public static final CstDouble VALUE_1 = + new CstDouble(Double.doubleToLongBits(1.0)); + + /** + * Makes an instance for the given value. This may (but does not + * necessarily) return an already-allocated instance. + * + * @param bits the {@code double} value as {@code long} bits + */ + public static CstDouble make(long bits) { + /* + * Note: Javadoc notwithstanding, this implementation always + * allocates. + */ + return new CstDouble(bits); + } + + /** + * Constructs an instance. This constructor is private; use {@link #make}. + * + * @param bits the {@code double} value as {@code long} bits + */ + private CstDouble(long bits) { + super(bits); + } + + /** {@inheritDoc} */ + @Override + public String toString() { + long bits = getLongBits(); + return "double{0x" + Hex.u8(bits) + " / " + + Double.longBitsToDouble(bits) + '}'; + } + + /** {@inheritDoc} */ + public Type getType() { + return Type.DOUBLE; + } + + /** {@inheritDoc} */ + @Override + public String typeName() { + return "double"; + } + + /** {@inheritDoc} */ + public String toHuman() { + return Double.toString(Double.longBitsToDouble(getLongBits())); + } + + /** + * Gets the {@code double} value. + * + * @return the value + */ + public double getValue() { + return Double.longBitsToDouble(getLongBits()); + } +} |