java.lang.Object
org.apache.bcel.generic.InstructionFactory
- All Implemented Interfaces:
- InstructionConstants, java.io.Serializable
- public class InstructionFactory
- extends java.lang.Object
- implements InstructionConstants, java.io.Serializable
Instances of this class may be used, e.g., to generate typed
versions of instructions. Its main purpose is to be used as the
byte code generating backend of a compiler. You can subclass it to
add your own create methods.
- Version:
- $Id: InstructionFactory.java 386056 2006-03-15 11:31:56Z tcurdt $
| Fields inherited from interface org.apache.bcel.generic.InstructionConstants |
AALOAD, AASTORE, ACONST_NULL, ALOAD_0, ALOAD_1, ALOAD_2, ARETURN, ARRAYLENGTH, ASTORE_0, ASTORE_1, ASTORE_2, ATHROW, BALOAD, BASTORE, bla, CALOAD, CASTORE, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DMUL, DNEG, DREM, DRETURN, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FMUL, FNEG, FREM, FRETURN, FSUB, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, ILOAD_0, ILOAD_1, ILOAD_2, IMUL, INEG, INSTRUCTIONS, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE_0, ISTORE_1, ISTORE_2, ISUB, IUSHR, IXOR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDIV, LMUL, LNEG, LOR, LREM, LRETURN, LSHL, LSHR, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, NOP, POP, POP2, RETURN, SALOAD, SASTORE, SWAP, THIS |
|
Method Summary |
Instruction |
createAppend(Type type)
|
static ArrayInstruction |
createArrayLoad(Type type)
|
static ArrayInstruction |
createArrayStore(Type type)
|
private static ArithmeticInstruction |
createBinaryDoubleOp(char op)
|
private static ArithmeticInstruction |
createBinaryFloatOp(char op)
|
private static ArithmeticInstruction |
createBinaryIntOp(char first,
java.lang.String op)
|
private static ArithmeticInstruction |
createBinaryLongOp(char first,
java.lang.String op)
|
static ArithmeticInstruction |
createBinaryOperation(java.lang.String op,
Type type)
Create binary operation for simple basic types, such as int and float. |
static BranchInstruction |
createBranchInstruction(short opcode,
InstructionHandle target)
Create branch instruction by given opcode, except LOOKUPSWITCH and TABLESWITCH. |
Instruction |
createCast(Type src_type,
Type dest_type)
Create conversion operation for two stack operands, this may be an I2C, instruction, e.g.,
if the operands are basic types and CHECKCAST if they are reference types. |
CHECKCAST |
createCheckCast(ReferenceType t)
|
Instruction |
createConstant(java.lang.Object value)
Uses PUSH to push a constant value onto the stack. |
static StackInstruction |
createDup_1(int size)
|
static StackInstruction |
createDup_2(int size)
|
static StackInstruction |
createDup(int size)
|
FieldInstruction |
createFieldAccess(java.lang.String class_name,
java.lang.String name,
Type type,
short kind)
Create a field instruction. |
GETFIELD |
createGetField(java.lang.String class_name,
java.lang.String name,
Type t)
|
GETSTATIC |
createGetStatic(java.lang.String class_name,
java.lang.String name,
Type t)
|
INSTANCEOF |
createInstanceOf(ReferenceType t)
|
private InvokeInstruction |
createInvoke(InstructionFactory.MethodObject m,
short kind)
|
InvokeInstruction |
createInvoke(java.lang.String class_name,
java.lang.String name,
Type ret_type,
Type[] arg_types,
short kind)
Create an invoke instruction. |
static LocalVariableInstruction |
createLoad(Type type,
int index)
|
NEW |
createNew(ObjectType t)
|
NEW |
createNew(java.lang.String s)
|
Instruction |
createNewArray(Type t,
short dim)
Create new array of given size and type. |
static Instruction |
createNull(Type type)
Create "null" value for reference types, 0 for basic types like int |
static StackInstruction |
createPop(int size)
|
InstructionList |
createPrintln(java.lang.String s)
Create a call to the most popular System.out.println() method. |
PUTFIELD |
createPutField(java.lang.String class_name,
java.lang.String name,
Type t)
|
PUTSTATIC |
createPutStatic(java.lang.String class_name,
java.lang.String name,
Type t)
|
static ReturnInstruction |
createReturn(Type type)
Create typed return |
static LocalVariableInstruction |
createStore(Type type,
int index)
|
static Instruction |
createThis()
Create reference to `this' |
ClassGen |
getClassGen()
|
ConstantPoolGen |
getConstantPool()
|
private static boolean |
isString(Type type)
|
void |
setClassGen(ClassGen c)
|
void |
setConstantPool(ConstantPoolGen c)
|
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
cg
protected ClassGen cg
cp
protected ConstantPoolGen cp
append_mos
private static InstructionFactory.MethodObject[] append_mos
InstructionFactory
public InstructionFactory(ClassGen cg,
ConstantPoolGen cp)
InstructionFactory
public InstructionFactory(ClassGen cg)
- Initialize with ClassGen object
InstructionFactory
public InstructionFactory(ConstantPoolGen cp)
- Initialize just with ConstantPoolGen object
createInvoke
public InvokeInstruction createInvoke(java.lang.String class_name,
java.lang.String name,
Type ret_type,
Type[] arg_types,
short kind)
- Create an invoke instruction.
createPrintln
public InstructionList createPrintln(java.lang.String s)
- Create a call to the most popular System.out.println() method.
createConstant
public Instruction createConstant(java.lang.Object value)
- Uses PUSH to push a constant value onto the stack.
createInvoke
private InvokeInstruction createInvoke(InstructionFactory.MethodObject m,
short kind)
isString
private static final boolean isString(Type type)
createAppend
public Instruction createAppend(Type type)
createFieldAccess
public FieldInstruction createFieldAccess(java.lang.String class_name,
java.lang.String name,
Type type,
short kind)
- Create a field instruction.
createThis
public static Instruction createThis()
- Create reference to `this'
createReturn
public static ReturnInstruction createReturn(Type type)
- Create typed return
createBinaryIntOp
private static final ArithmeticInstruction createBinaryIntOp(char first,
java.lang.String op)
createBinaryLongOp
private static final ArithmeticInstruction createBinaryLongOp(char first,
java.lang.String op)
createBinaryFloatOp
private static final ArithmeticInstruction createBinaryFloatOp(char op)
createBinaryDoubleOp
private static final ArithmeticInstruction createBinaryDoubleOp(char op)
createBinaryOperation
public static ArithmeticInstruction createBinaryOperation(java.lang.String op,
Type type)
- Create binary operation for simple basic types, such as int and float.
createPop
public static StackInstruction createPop(int size)
createDup
public static StackInstruction createDup(int size)
createDup_2
public static StackInstruction createDup_2(int size)
createDup_1
public static StackInstruction createDup_1(int size)
createStore
public static LocalVariableInstruction createStore(Type type,
int index)
createLoad
public static LocalVariableInstruction createLoad(Type type,
int index)
createArrayLoad
public static ArrayInstruction createArrayLoad(Type type)
createArrayStore
public static ArrayInstruction createArrayStore(Type type)
createCast
public Instruction createCast(Type src_type,
Type dest_type)
- Create conversion operation for two stack operands, this may be an I2C, instruction, e.g.,
if the operands are basic types and CHECKCAST if they are reference types.
createGetField
public GETFIELD createGetField(java.lang.String class_name,
java.lang.String name,
Type t)
createGetStatic
public GETSTATIC createGetStatic(java.lang.String class_name,
java.lang.String name,
Type t)
createPutField
public PUTFIELD createPutField(java.lang.String class_name,
java.lang.String name,
Type t)
createPutStatic
public PUTSTATIC createPutStatic(java.lang.String class_name,
java.lang.String name,
Type t)
createCheckCast
public CHECKCAST createCheckCast(ReferenceType t)
createInstanceOf
public INSTANCEOF createInstanceOf(ReferenceType t)
createNew
public NEW createNew(ObjectType t)
createNew
public NEW createNew(java.lang.String s)
createNewArray
public Instruction createNewArray(Type t,
short dim)
- Create new array of given size and type.
createNull
public static Instruction createNull(Type type)
- Create "null" value for reference types, 0 for basic types like int
createBranchInstruction
public static BranchInstruction createBranchInstruction(short opcode,
InstructionHandle target)
- Create branch instruction by given opcode, except LOOKUPSWITCH and TABLESWITCH.
For those you should use the SWITCH compound instruction.
setClassGen
public void setClassGen(ClassGen c)
getClassGen
public ClassGen getClassGen()
setConstantPool
public void setConstantPool(ConstantPoolGen c)
getConstantPool
public ConstantPoolGen getConstantPool()
JAVADOC | 
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