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Diffstat (limited to 'src/proguard/evaluation/value/ValueFactory.java')
| -rw-r--r-- | src/proguard/evaluation/value/ValueFactory.java | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/src/proguard/evaluation/value/ValueFactory.java b/src/proguard/evaluation/value/ValueFactory.java deleted file mode 100644 index cb9e657..0000000 --- a/src/proguard/evaluation/value/ValueFactory.java +++ /dev/null @@ -1,176 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -package proguard.evaluation.value; - -import proguard.classfile.*; -import proguard.classfile.util.ClassUtil; - -/** - * This class provides methods to create and reuse Value objects. - * - * @author Eric Lafortune - */ -public class ValueFactory -{ - // Shared copies of Value objects, to avoid creating a lot of objects. - static final IntegerValue INTEGER_VALUE = new UnknownIntegerValue(); - static final LongValue LONG_VALUE = new UnknownLongValue(); - static final FloatValue FLOAT_VALUE = new UnknownFloatValue(); - static final DoubleValue DOUBLE_VALUE = new UnknownDoubleValue(); - - static final ReferenceValue REFERENCE_VALUE_NULL = new TypedReferenceValue(null, null, true); - static final ReferenceValue REFERENCE_VALUE_JAVA_LANG_OBJECT_MAYBE_NULL = new TypedReferenceValue(ClassConstants.NAME_JAVA_LANG_OBJECT, null, true); - static final ReferenceValue REFERENCE_VALUE_JAVA_LANG_OBJECT_NOT_NULL = new TypedReferenceValue(ClassConstants.NAME_JAVA_LANG_OBJECT, null, false); - - - /** - * Creates a new Value of the given type. - * The type must be a fully specified internal type for primitives, classes, - * or arrays. - */ - public Value createValue(String type, Clazz referencedClass, boolean mayBeNull) - { - switch (type.charAt(0)) - { - case ClassConstants.TYPE_VOID: return null; - case ClassConstants.TYPE_BOOLEAN: - case ClassConstants.TYPE_BYTE: - case ClassConstants.TYPE_CHAR: - case ClassConstants.TYPE_SHORT: - case ClassConstants.TYPE_INT: return createIntegerValue(); - case ClassConstants.TYPE_LONG: return createLongValue(); - case ClassConstants.TYPE_FLOAT: return createFloatValue(); - case ClassConstants.TYPE_DOUBLE: return createDoubleValue(); - default: return createReferenceValue(ClassUtil.isInternalArrayType(type) ? - type : - ClassUtil.internalClassNameFromClassType(type), - referencedClass, - mayBeNull); - } - } - - /** - * Creates a new IntegerValue with an undefined value. - */ - public IntegerValue createIntegerValue() - { - return INTEGER_VALUE; - } - - /** - * Creates a new IntegerValue with a given particular value. - */ - public IntegerValue createIntegerValue(int value) - { - return createIntegerValue(); - } - - - /** - * Creates a new LongValue with an undefined value. - */ - public LongValue createLongValue() - { - return LONG_VALUE; - } - - /** - * Creates a new LongValue with a given particular value. - */ - public LongValue createLongValue(long value) - { - return createLongValue(); - } - - - /** - * Creates a new FloatValue with an undefined value. - */ - public FloatValue createFloatValue() - { - return FLOAT_VALUE; - } - - /** - * Creates a new FloatValue with a given particular value. - */ - public FloatValue createFloatValue(float value) - { - return createFloatValue(); - } - - - /** - * Creates a new DoubleValue with an undefined value. - */ - public DoubleValue createDoubleValue() - { - return DOUBLE_VALUE; - } - - /** - * Creates a new DoubleValue with a given particular value. - */ - public DoubleValue createDoubleValue(double value) - { - return createDoubleValue(); - } - - - /** - * Creates a new ReferenceValue that represents <code>null</code>. - */ - public ReferenceValue createReferenceValueNull() - { - return REFERENCE_VALUE_NULL; - } - - - /** - * Creates a new ReferenceValue of the given type. The type must be an - * internal class name or an array type. If the type is <code>null</code>, - * the ReferenceValue represents <code>null</code>. - */ - public ReferenceValue createReferenceValue(String type, - Clazz referencedClass, - boolean mayBeNull) - { - return type == null ? REFERENCE_VALUE_NULL : - !type.equals(ClassConstants.NAME_JAVA_LANG_OBJECT) ? new TypedReferenceValue(type, referencedClass, mayBeNull) : - mayBeNull ? REFERENCE_VALUE_JAVA_LANG_OBJECT_MAYBE_NULL : - REFERENCE_VALUE_JAVA_LANG_OBJECT_NOT_NULL; - } - - - /** - * Creates a new ReferenceValue for arrays of the given type and length. - * The type must be a fully specified internal type for primitives, classes, - * or arrays. - */ - public ReferenceValue createArrayReferenceValue(String type, - Clazz referencedClass, - IntegerValue arrayLength) - { - return createReferenceValue(ClassConstants.TYPE_ARRAY + type, - referencedClass, - false); - } -} |