Java Code Examples for proguard.evaluation.value.Value#equals()
The following examples show how to use
proguard.evaluation.value.Value#equals() .
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Example 1
| Source File: Stack.java From java-n-IDE-for-Android with Apache License 2.0 | 5 votes |
|
/**
* Generalizes the values of this Stack with the values of the given Stack.
* The stacks must have the same current sizes.
* @return whether the generalization has made any difference.
*/
public boolean generalize(Stack other)
{
if (this.currentSize != other.currentSize)
{
throw new IllegalArgumentException("Stacks have different current sizes ["+this.currentSize+"] and ["+other.currentSize+"]");
}
boolean changed = false;
// Generalize the stack values.
for (int index = 0; index < currentSize; index++)
{
Value thisValue = this.values[index];
if (thisValue != null)
{
Value newValue = null;
Value otherValue = other.values[index];
if (otherValue != null)
{
newValue = thisValue.generalize(otherValue);
}
changed = changed || !thisValue.equals(newValue);
values[index] = newValue;
}
}
// Check if the other stack extends beyond this one.
if (this.actualMaxSize < other.actualMaxSize)
{
this.actualMaxSize = other.actualMaxSize;
}
return changed;
}
Example 2
| Source File: Stack.java From java-n-IDE-for-Android with Apache License 2.0 | 5 votes |
|
public boolean equals(Object object)
{
if (object == null ||
this.getClass() != object.getClass())
{
return false;
}
Stack other = (Stack)object;
if (this.currentSize != other.currentSize)
{
return false;
}
for (int index = 0; index < currentSize; index++)
{
Value thisValue = this.values[index];
Value otherValue = other.values[index];
if (thisValue == null ? otherValue != null :
!thisValue.equals(otherValue))
{
return false;
}
}
return true;
}
Example 3
| Source File: Variables.java From java-n-IDE-for-Android with Apache License 2.0 | 5 votes |
|
public boolean equals(Object object)
{
if (object == null ||
this.getClass() != object.getClass())
{
return false;
}
Variables other = (Variables)object;
if (this.size != other.size)
{
return false;
}
for (int index = 0; index < size; index++)
{
Value thisValue = this.values[index];
Value otherValue = other.values[index];
// Occasionally, two values of different types might be
// present in the same variable in a variable frame
// (corresponding to two local variables that share the
// same index), at some point outside of their scopes.
// We'll ignore these.
if (thisValue != null &&
otherValue != null &&
thisValue.computationalType() == otherValue.computationalType() &&
!thisValue.equals(otherValue))
{
return false;
}
}
return true;
}
Example 4
| Source File: Variables.java From java-n-IDE-for-Android with Apache License 2.0 | 4 votes |
|
/**
* Generalizes the values of this Variables object with the values of the
* given Variables object.
* @param clearConflictingOtherVariables specifies whether the other
* variables should be cleared too,
* in case of conflicts.
* @return whether the generalization has made any difference.
*/
public boolean generalize(Variables other,
boolean clearConflictingOtherVariables)
{
if (this.size != other.size)
{
throw new IllegalArgumentException("Variable frames have different sizes ["+this.size+"] and ["+other.size+"]");
}
boolean changed = false;
for (int index = 0; index < size; index++)
{
Value thisValue = this.values[index];
Value otherValue = other.values[index];
// Occasionally, two values of different types might be present
// in the same variable in a variable frame (corresponding to
// two local variables that share the same index), at some point
// outside of their scopes. Don't generalize the variable then,
// but let it clear instead.
if (thisValue != null &&
otherValue != null &&
thisValue.computationalType() == otherValue.computationalType())
{
Value newValue = thisValue.generalize(otherValue);
changed = changed || !thisValue.equals(newValue);
this.values[index] = newValue;
}
else
{
changed = changed || thisValue != null;
this.values[index] = null;
if (clearConflictingOtherVariables)
{
other.values[index] = null;
}
}
}
return changed;
}
Example 5
| Source File: EvaluationSimplifier.java From java-n-IDE-for-Android with Apache License 2.0 | 4 votes |
|
/**
* Replaces the integer pushing instruction at the given offset by a simpler
* push instruction, if possible.
*/
private void replaceIntegerPushInstruction(Clazz clazz,
int offset,
Instruction instruction,
int maxVariableIndex)
{
Value pushedValue = partialEvaluator.getStackAfter(offset).getTop(0);
if (pushedValue.isParticular())
{
int value = pushedValue.integerValue().value();
if (value << 16 >> 16 == value)
{
replaceConstantPushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_SIPUSH,
value);
}
else
{
ConstantPoolEditor constantPoolEditor =
new ConstantPoolEditor((ProgramClass)clazz);
Instruction replacementInstruction =
new ConstantInstruction(InstructionConstants.OP_LDC,
constantPoolEditor.addIntegerConstant(value)).shrink();
replaceInstruction(clazz, offset, instruction, replacementInstruction);
}
}
else if (pushedValue.isSpecific())
{
TracedVariables variables = partialEvaluator.getVariablesBefore(offset);
for (int variableIndex = 0; variableIndex < maxVariableIndex; variableIndex++)
{
if (pushedValue.equals(variables.load(variableIndex)))
{
replaceVariablePushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_ILOAD,
variableIndex);
}
}
}
}
Example 6
| Source File: EvaluationSimplifier.java From java-n-IDE-for-Android with Apache License 2.0 | 4 votes |
|
/**
* Replaces the long pushing instruction at the given offset by a simpler
* push instruction, if possible.
*/
private void replaceLongPushInstruction(Clazz clazz,
int offset,
Instruction instruction,
int maxVariableIndex)
{
Value pushedValue = partialEvaluator.getStackAfter(offset).getTop(0);
if (pushedValue.isParticular())
{
long value = pushedValue.longValue().value();
if (value == 0L ||
value == 1L)
{
replaceConstantPushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_LCONST_0,
(int)value);
}
else
{
ConstantPoolEditor constantPoolEditor =
new ConstantPoolEditor((ProgramClass)clazz);
Instruction replacementInstruction =
new ConstantInstruction(InstructionConstants.OP_LDC2_W,
constantPoolEditor.addLongConstant(value)).shrink();
replaceInstruction(clazz, offset, instruction, replacementInstruction);
}
}
else if (pushedValue.isSpecific())
{
TracedVariables variables = partialEvaluator.getVariablesBefore(offset);
for (int variableIndex = 0; variableIndex < maxVariableIndex; variableIndex++)
{
if (pushedValue.equals(variables.load(variableIndex)))
{
replaceVariablePushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_LLOAD,
variableIndex);
}
}
}
}
Example 7
| Source File: EvaluationSimplifier.java From java-n-IDE-for-Android with Apache License 2.0 | 4 votes |
|
/**
* Replaces the float pushing instruction at the given offset by a simpler
* push instruction, if possible.
*/
private void replaceFloatPushInstruction(Clazz clazz,
int offset,
Instruction instruction,
int maxVariableIndex)
{
Value pushedValue = partialEvaluator.getStackAfter(offset).getTop(0);
if (pushedValue.isParticular())
{
// Make sure to distinguish between +0.0 and -0.0.
float value = pushedValue.floatValue().value();
if (value == 0.0f && Float.floatToIntBits(value) == POS_ZERO_FLOAT_BITS ||
value == 1.0f ||
value == 2.0f)
{
replaceConstantPushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_FCONST_0,
(int)value);
}
else
{
ConstantPoolEditor constantPoolEditor =
new ConstantPoolEditor((ProgramClass)clazz);
Instruction replacementInstruction =
new ConstantInstruction(InstructionConstants.OP_LDC,
constantPoolEditor.addFloatConstant(value)).shrink();
replaceInstruction(clazz, offset, instruction, replacementInstruction);
}
}
else if (pushedValue.isSpecific())
{
TracedVariables variables = partialEvaluator.getVariablesBefore(offset);
for (int variableIndex = 0; variableIndex < maxVariableIndex; variableIndex++)
{
if (pushedValue.equals(variables.load(variableIndex)))
{
replaceVariablePushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_FLOAD,
variableIndex);
}
}
}
}
Example 8
| Source File: EvaluationSimplifier.java From java-n-IDE-for-Android with Apache License 2.0 | 4 votes |
|
/**
* Replaces the double pushing instruction at the given offset by a simpler
* push instruction, if possible.
*/
private void replaceDoublePushInstruction(Clazz clazz,
int offset,
Instruction instruction,
int maxVariableIndex)
{
Value pushedValue = partialEvaluator.getStackAfter(offset).getTop(0);
if (pushedValue.isParticular())
{
// Make sure to distinguish between +0.0 and -0.0.
double value = pushedValue.doubleValue().value();
if (value == 0.0 && Double.doubleToLongBits(value) == POS_ZERO_DOUBLE_BITS ||
value == 1.0)
{
replaceConstantPushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_DCONST_0,
(int)value);
}
else
{
ConstantPoolEditor constantPoolEditor =
new ConstantPoolEditor((ProgramClass)clazz);
Instruction replacementInstruction =
new ConstantInstruction(InstructionConstants.OP_LDC2_W,
constantPoolEditor.addDoubleConstant(value)).shrink();
replaceInstruction(clazz, offset, instruction, replacementInstruction);
}
}
else if (pushedValue.isSpecific())
{
TracedVariables variables = partialEvaluator.getVariablesBefore(offset);
for (int variableIndex = 0; variableIndex < maxVariableIndex; variableIndex++)
{
if (pushedValue.equals(variables.load(variableIndex)))
{
replaceVariablePushInstruction(clazz,
offset,
instruction,
InstructionConstants.OP_DLOAD,
variableIndex);
}
}
}
}
