# Interface: com.pnfsoftware.jeb.core.units.code.android.ir.IDOperation `dexdec` IR operation expression. Operations include: arithmetic and bitwise operations, logical expressions, the ternary \(conditional\) expression, cast operations, etc. An operation is made of one [operator](IJavaOperator) and 1, 2, or 3 operands: \- 1 operand for unary expressions, e.g a cast \- 2 operands for duary expressions, e.g. an addition \- 3 operands for ternary expressions, e.g. a conditional Examples: ``` c = a + 1; ^^^^^ e = x ? c: d; ^^^^^^^^ s = (short)x; ^^^^^^^^ list = (List)obj; ^^^^^^^^^ ``` ## Method: canReverse - return type: `boolean` Description: Determine whether this operation, if it is a logical operation, can be reversed in\-place \(no new IR element would created\). return: true if this operation can be reversed in\-place ## Method: duplicate - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDOperation` ## Method: getCondFalseExpression - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: If this IR is a conditional operation, retrieve the conditional's true expression. The same as [#getRight()](#getRight()). return: the expression evaluated when the predicate is false ## Method: getCondPredicate - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: If this IR is a conditional operation, retrieve the conditional's predicate. return: null for non conditional expressions ## Method: getCondTrueExpression - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: If this IR is a conditional operation, retrieve the conditional's true expression. The same as [#getLeft()](#getLeft()). return: the expression evaluated when the predicate is true ## Method: getLeft - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Retrieve the left operand. return: null for unary expressions ## Method: getOperand1 - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Retrieve the first operand. Same as [#getLeft()](#getLeft()). return: null for unary expressions ## Method: getOperand2 - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Retrieve the second operand. Same as [#getRight()](#getRight()). return: never null ## Method: getOperator - return type: `com.pnfsoftware.jeb.core.units.code.java.IJavaOperator` Description: Get the expression's operator. return: the operator object ## Method: getOperatorType - return type: `com.pnfsoftware.jeb.core.units.code.java.JavaOperatorType` Description: This convenience method can be used to retrieve the operator type. It is the same as `getOperator().getOperatorType()`. return: an operator type enumerated constant ## Method: getRight - return type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Retrieve the right operand. return: never null ## Method: isCast - return type: `boolean` Description: Convenience operation to determine whether this is operation is a cast. return: true if this operation is a cast operation ## Method: isCast - parameter: `wantedType`, type: `com.pnfsoftware.jeb.core.units.code.java.IJavaType` - return type: `boolean` Description: Convenience operation to determine whether this is operation is a cast to the provided type. parameter: wantedType: checked cast type return: true if this operation is a cast to `wantedType` ## Method: isConditional - return type: `boolean` Description: Convenience operation to determine whether this is the tertiary conditional expression. return: true for conditional operations ## Method: isUnary - return type: `boolean` Description: Convenience operation to determine whether this is a unary expression. return: true for unary operations ## Method: reverse Description: Perform in\-place reversal of this logical operation, assuming [#canReverse()](#canReverse()) returned `true`. This method throws on failure. ## Method: setCondPredicate - parameter: `pred`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Set the predicate of a conditional operation. parameter: pred: predicate expression ## Method: setLeft - parameter: `exp`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Set the left operand. parameter: exp: left operand ## Method: setOperand1 - parameter: `exp`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Set the first operand. Same as [#setLeft(IDExpression)](#setLeft(IDExpression)). parameter: exp: first operand ## Method: setOperand2 - parameter: `exp`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Set the second operand. Same as [#setRight(IDExpression)](#setRight(IDExpression)). parameter: exp: second operand ## Method: setOperator - parameter: `operator`, type: `com.pnfsoftware.jeb.core.units.code.java.IJavaOperator` Description: Set the expression operator. parameter: operator: new operator ## Method: setOperator - parameter: `operatorType`, type: `com.pnfsoftware.jeb.core.units.code.java.JavaOperatorType` - parameter: `of`, type: `com.pnfsoftware.jeb.core.units.code.java.IJavaOperatorFactory` Description: Set the expression operator. Alternate method. parameter: operatorType: operator type parameter: of: operator factory ## Method: setRight - parameter: `exp`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDExpression` Description: Set the right operand. parameter: exp: right operand ## Method: updateConversionOperators - parameter: `ti`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.DTypeInfo` - parameter: `gctx`, type: `com.pnfsoftware.jeb.core.units.code.android.ir.IDGlobalContext` Description: Upgrade temporary [conversion](JavaOperatorType#CAST_CONVERSION) operators to legal `cast` operators. Ths method should be called once only, on a low\-level IR. It is reserved for internal use. parameter: ti: optional type information object, used to record type updates and conflicts parameter: gctx: global IR context \(mandatory\)