本文整理汇总了Java中proguard.optimize.evaluation.PartialEvaluator类的典型用法代码示例。如果您正苦于以下问题：Java PartialEvaluator类的具体用法？Java PartialEvaluator怎么用？Java PartialEvaluator使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
PartialEvaluator类属于proguard.optimize.evaluation包，在下文中一共展示了PartialEvaluator类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: visitVariableInstruction
import proguard.optimize.evaluation.PartialEvaluator; //导入依赖的package包/类
public void visitVariableInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VariableInstruction variableInstruction)
{
if (partialEvaluator.isTraced(offset) &&
variableInstruction.isLoad())
{
int parameterIndex = variableInstruction.variableIndex;
if (parameterIndex < codeAttribute.u2maxLocals)
{
Value producer =
partialEvaluator.getVariablesBefore(offset).getProducerValue(parameterIndex);
if (producer != null &&
producer.instructionOffsetValue().contains(PartialEvaluator.AT_METHOD_ENTRY))
{
// Mark the variable.
markParameterUsed(method, parameterIndex);
// Account for Category 2 instructions, which take up two entries.
if (variableInstruction.isCategory2())
{
markParameterUsed(method, parameterIndex + 1);
}
}
}
}
}
示例2: correspondingVerificationType
import proguard.optimize.evaluation.PartialEvaluator; //导入依赖的package包/类
/**
* Creates and returns the verification type corresponding to the given
* value. If necessary, a class constant is added to the constant pool of
* the given class.
*/
private VerificationType correspondingVerificationType(ProgramClass programClass,
ProgramMethod programMethod,
CodeAttribute codeAttribute,
int offset,
boolean isVariable0,
Value value,
Value producerValue)
{
if (value == null)
{
return VerificationTypeFactory.createTopType();
}
int type = value.computationalType();
switch (type)
{
case Value.TYPE_INSTRUCTION_OFFSET:
case Value.TYPE_INTEGER: return VerificationTypeFactory.createIntegerType();
case Value.TYPE_LONG: return VerificationTypeFactory.createLongType();
case Value.TYPE_FLOAT: return VerificationTypeFactory.createFloatType();
case Value.TYPE_DOUBLE: return VerificationTypeFactory.createDoubleType();
case Value.TYPE_TOP: return VerificationTypeFactory.createTopType();
case Value.TYPE_REFERENCE:
// Is it a Null type?
ReferenceValue referenceValue = value.referenceValue();
if (referenceValue.isNull() == Value.ALWAYS)
{
return VerificationTypeFactory.createNullType();
}
// Does the reference type have a single producer?
if (offset != PartialEvaluator.AT_METHOD_ENTRY)
{
InstructionOffsetValue producers = producerValue.instructionOffsetValue();
if (producers.instructionOffsetCount() == 1)
{
int producerOffset = producers.instructionOffset(0);
// Follow any dup or swap instructions.
while (producerOffset != PartialEvaluator.AT_METHOD_ENTRY &&
isDupOrSwap(codeAttribute.code[producerOffset]))
{
producers = partialEvaluator.getStackBefore(producerOffset).getTopProducerValue(0).instructionOffsetValue();
producerOffset = producers.instructionOffset(0);
}
// Are we in an instance initialization method,
// before the super initialization, loading "this"?
if (partialEvaluator.isInitializer() &&
offset <= partialEvaluator.superInitializationOffset() &&
(isVariable0 ||
producerOffset > PartialEvaluator.AT_METHOD_ENTRY &&
codeAttribute.code[producerOffset] == InstructionConstants.OP_ALOAD_0))
{
// It's an UninitializedThis type.
return VerificationTypeFactory.createUninitializedThisType();
}
// Is the reference type newly created and still
// uninitialized?
if (producerOffset > PartialEvaluator.AT_METHOD_ENTRY &&
offset <= partialEvaluator.initializationOffset(producerOffset))
{
// It's an Uninitialized type.
return VerificationTypeFactory.createUninitializedType(producerOffset);
}
}
}
// It's an ordinary Object type.
return VerificationTypeFactory.createObjectType(createClassConstant(programClass, referenceValue));
}
throw new IllegalArgumentException("Unknown computational type ["+type+"]");
}