Package org.aspectj.apache.bcel.generic
Class InstructionFactory
java.lang.Object
org.aspectj.apache.bcel.generic.InstructionFactory
- All Implemented Interfaces:
InstructionConstants
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.
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Nested Class Summary
Nested classes/interfaces inherited from interface org.aspectj.apache.bcel.generic.InstructionConstants
InstructionConstants.Clinit -
Field Summary
FieldsFields inherited from interface org.aspectj.apache.bcel.generic.InstructionConstants
AALOAD, AASTORE, ACONST_NULL, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ARETURN, ARRAYLENGTH, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, BALOAD, BASTORE, bla, CALOAD, CASTORE, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD_0, DLOAD_1, DLOAD_2, DLOAD_3, DMUL, DNEG, DREM, DRETURN, DSTORE_0, DSTORE_1, DSTORE_2, DSTORE_3, 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, FLOAD_0, FLOAD_1, FLOAD_2, FLOAD_3, FMUL, FNEG, FREM, FRETURN, FSTORE_0, FSTORE_1, FSTORE_2, FSTORE_3, 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, ILOAD_3, IMPDEP1, IMPDEP2, IMUL, INEG, INSTRUCTIONS, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE_0, ISTORE_1, ISTORE_2, ISTORE_3, ISUB, IUSHR, IXOR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDIV, LLOAD_0, LLOAD_1, LLOAD_2, LLOAD_3, LMUL, LNEG, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE_0, LSTORE_1, LSTORE_2, LSTORE_3, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, NOP, POP, POP2, RETURN, SALOAD, SASTORE, SWAP, THIS -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic InstructioncreateALOAD(int n) static InstructioncreateArrayLoad(Type type) static InstructioncreateArrayStore(Type type) static InstructioncreateASTORE(int n) static InstructionBranchcreateBranchInstruction(short opcode, InstructionHandle target) Create branch instruction by given opcode, except LOOKUPSWITCH and TABLESWITCH.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.createConstant(Object value) Uses PUSH to push a constant value onto the stack.static InstructioncreateDup(int size) static InstructioncreateDup_1(int size) static InstructioncreateDup_2(int size) createFieldAccess(String class_name, String name, Type type, short kind) Create a field instruction.createGetField(String class_name, String name, Type t) createGetStatic(String class_name, String name, Type t) createInvoke(String class_name, String name, String signature, short kind) createInvoke(String class_name, String name, Type ret_type, Type[] arg_types, short kind) createInvoke(String class_name, String name, Type ret_type, Type[] arg_types, short kind, boolean isInterface) Create an invoke instruction.static InstructionLVcreateLoad(Type type, int index) createNewArray(Type t, short dim) Create new array of given size and type.static InstructioncreateNull(Type type) Create "null" value for reference types, 0 for basic types like intstatic InstructioncreatePop(int size) createPutField(String class_name, String name, Type t) createPutStatic(String class_name, String name, Type t) static InstructioncreateReturn(Type type) Create typed returnstatic InstructionLVcreateStore(Type type, int index) static InstructionCreate reference to `this'static InstructionPUSH(ConstantPool cp, boolean value) static InstructionPUSH(ConstantPool cp, double value) static InstructionPUSH(ConstantPool cp, float value) static InstructionPUSH(ConstantPool cp, int value) Returns the right instruction for putting whatever you want onto the stackstatic InstructionPUSH(ConstantPool cp, long value) static InstructionPUSH(ConstantPool cp, Boolean value) static InstructionPUSH(ConstantPool cp, Character value) static InstructionPUSH(ConstantPool cp, Number value) static InstructionPUSH(ConstantPool cp, String value) static InstructionPUSH(ConstantPool cp, ObjectType t) PUSHCLASS(ConstantPool cp, String className) Return a list that will load the Class object - on 1.5 or later use the class variant of ldc, whilst on earlier JVMs use the regular Class.forName.voidvoid
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Field Details
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cg
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cp
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Constructor Details
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InstructionFactory
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InstructionFactory
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InstructionFactory
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Method Details
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createInvoke
public InvokeInstruction createInvoke(String class_name, String name, Type ret_type, Type[] arg_types, short kind) -
createInvoke
public InvokeInstruction createInvoke(String class_name, String name, Type ret_type, Type[] arg_types, short kind, boolean isInterface) Create an invoke instruction.- Parameters:
class_name- name of the called classname- name of the called methodret_type- return type of methodarg_types- argument types of methodkind- how to invoke, i.e., INVOKEINTERFACE, INVOKESTATIC, INVOKEVIRTUAL, or INVOKESPECIALisInterface- for an invokestatic on an interface allows us to tell this method the target is an interface- See Also:
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createInvoke
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createALOAD
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createASTORE
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createConstant
Uses PUSH to push a constant value onto the stack.- Parameters:
value- must be of type Number, Boolean, Character or String
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createFieldAccess
Create a field instruction.- Parameters:
class_name- name of the accessed classname- name of the referenced fieldtype- type of fieldkind- how to access, i.e., GETFIELD, PUTFIELD, GETSTATIC, PUTSTATIC- See Also:
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createThis
Create reference to `this' -
createReturn
Create typed return -
createPop
- Parameters:
size- size of operand, either 1 (int, e.g.) or 2 (double)
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createDup
- Parameters:
size- size of operand, either 1 (int, e.g.) or 2 (double)
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createDup_2
- Parameters:
size- size of operand, either 1 (int, e.g.) or 2 (double)
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createDup_1
- Parameters:
size- size of operand, either 1 (int, e.g.) or 2 (double)
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createStore
- Parameters:
index- index of local variable
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createLoad
- Parameters:
index- index of local variable
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createArrayLoad
- Parameters:
type- type of elements of array, i.e., array.getElementType()
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createArrayStore
- Parameters:
type- type of elements of array, i.e., array.getElementType()
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createCast
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
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createGetStatic
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createPutField
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createPutStatic
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createCheckCast
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createInstanceOf
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createNew
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createNew
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createNewArray
Create new array of given size and type.- Returns:
- an instruction that creates the corresponding array at runtime, i.e. is an AllocationInstruction
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createNull
Create "null" value for reference types, 0 for basic types like int -
createBranchInstruction
Create branch instruction by given opcode, except LOOKUPSWITCH and TABLESWITCH. For those you should use the SWITCH compound instruction. -
setClassGen
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getClassGen
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setConstantPool
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getConstantPool
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PUSH
Returns the right instruction for putting whatever you want onto the stack -
PUSH
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PUSH
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PUSH
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PUSH
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PUSH
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PUSH
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PUSH
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PUSH
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PUSH
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PUSHCLASS
Return a list that will load the Class object - on 1.5 or later use the class variant of ldc, whilst on earlier JVMs use the regular Class.forName.
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