org.logicalcobwebs.cglib.core
Class CodeEmitter

java.lang.Object
  org.logicalcobwebs.asm.CodeAdapter
      org.logicalcobwebs.cglib.core.RemappingCodeVisitor
          org.logicalcobwebs.cglib.core.CodeEmitter

All Implemented Interfaces:

CodeVisitor

public class CodeEmitter
extends RemappingCodeVisitor

Author:

Juozas Baliuka, Chris Nokleberg

Nested Class Summary

private static class

CodeEmitter.State

Field Summary

static int	ADD
static int	AND
private static Signature	BOOLEAN_VALUE
private ClassEmitter	ce
private static Signature	CHAR_VALUE
private static Signature	CSTRUCT_NULL
private static Signature	CSTRUCT_STRING
static int	DIV
private static Signature	DOUBLE_VALUE
static int	EQ
private static Signature	FLOAT_VALUE
static int	GE
static int	GT
private static Signature	INT_VALUE
static int	LE
private static Signature	LONG_VALUE
static int	LT
static int	MUL
static int	NE
static int	NEG
static int	OR
static int	REM
private CodeEmitter.State	state
static int	SUB
static int	USHR
static int	XOR

Fields inherited from class org.logicalcobwebs.asm.CodeAdapter

cv

Constructor Summary

CodeEmitter(ClassEmitter ce, CodeVisitor cv, int access, Signature sig, Type[] exceptionTypes)

CodeEmitter(CodeEmitter wrap)

Method Summary

void	aaload()
void	aaload(int index)
void	aastore()
void	aconst_null()
void	array_load(Type type)
void	array_store(Type type)
void	arraylength()
void	athrow()
Block	begin_block()
void	box(Type type) If the argument is a primitive class, replaces the primitive value on the top of the stack with the wrapped (Object) equivalent.
void	cast_numeric(Type from, Type to) Casts from one primitive numeric type to another
void	catch_exception(Block block, Type exception)
void	checkcast_this()
void	checkcast(Type type)
void	create_arg_array() Allocates and fills an Object[] array with the arguments to the current method.
void	define_attribute(Attribute attrs)
void	dup_x1()
void	dup_x2()
void	dup()
void	dup2_x1()
void	dup2_x2()
void	dup2()
(package private) void	emit_field(int opcode, Type ctype, java.lang.String name, Type ftype)
private void	emit_invoke(int opcode, Type type, Signature sig)
private void	emit_type(int opcode, Type type)
void	end_method()
ClassEmitter	getClassEmitter()
void	getfield(java.lang.String name)
void	getfield(Type owner, java.lang.String name, Type type)
Type	getReturnType()
Signature	getSignature()
void	getstatic(Type owner, java.lang.String name, Type type)
void	goTo(Label label)
void	if_cmp(Type type, int mode, Label label)
void	if_icmp(int mode, Label label)
void	if_jump(int mode, Label label)
void	ifnonnull(Label label)
void	ifnull(Label label)
void	iinc(Local local, int amount)
void	instance_of_this()
void	instance_of(Type type)
void	invoke_constructor_this()
void	invoke_constructor_this(Signature sig)
void	invoke_constructor(Type type)
void	invoke_constructor(Type type, Signature sig)
void	invoke_interface(Type owner, Signature sig)
void	invoke_static_this(Signature sig)
void	invoke_static(Type owner, Signature sig)
void	invoke_virtual_this(Signature sig)
void	invoke_virtual(Type owner, Signature sig)
void	invoke(java.lang.reflect.Method method)
private static boolean	isSorted(int[] keys)
boolean	isStaticHook()
void	load_arg(int index) Pushes the specified argument of the current method onto the stack.
void	load_args() Pushes all of the arguments of the current method onto the stack.
void	load_args(int fromArg, int count)
void	load_local(Local local)
private void	load_local(Type t, int pos)
void	load_this()
Label	make_label()
Local	make_local()
Local	make_local(Type type)
(package private) Label	mark()
void	mark(Label label)
void	math(int op, Type type)
void	monitorenter()
void	monitorexit()
void	new_instance_this()
void	new_instance(Type type)
void	newarray()
void	newarray(Type type)
void	not() Toggles the integer on the top of the stack from 1 to 0 or vice versa
void	pop()
void	pop2()
void	process_switch(int[] keys, ProcessSwitchCallback callback)
void	process_switch(int[] keys, ProcessSwitchCallback callback, boolean useTable)
void	push(boolean value)
void	push(double value)
void	push(float value)
void	push(int i)
void	push(long value)
void	push(java.lang.String value)
void	putfield(java.lang.String name)
void	putfield(Type owner, java.lang.String name, Type type)
void	putstatic(Type owner, java.lang.String name, Type type)
void	return_value()
private int	skipArgs(int numArgs)
void	store_local(Local local)
private void	store_local(Type t, int pos)
void	super_getfield(java.lang.String name, Type type)
void	super_getstatic(java.lang.String name, Type type)
void	super_invoke_constructor()
void	super_invoke_constructor(Signature sig)
void	super_invoke()
void	super_invoke(Signature sig)
void	super_putfield(java.lang.String name, Type type)
void	super_putstatic(java.lang.String name, Type type)
void	swap()
void	swap(Type prev, Type type)
void	throw_exception(Type type, java.lang.String msg)
void	unbox_or_zero(Type type) Unboxes the object on the top of the stack.
void	unbox(Type type) If the argument is a primitive class, replaces the object on the top of the stack with the unwrapped (primitive) equivalent.
void	visitMaxs(int maxStack, int maxLocals) Visits the maximum stack size and the maximum number of local variables of the method.
void	zero_or_null(Type type) Pushes a zero onto the stack if the argument is a primitive class, or a null otherwise.

Methods inherited from class org.logicalcobwebs.cglib.core.RemappingCodeVisitor

nextLocal, visitIincInsn, visitLocalVariable, visitVarInsn

Methods inherited from class org.logicalcobwebs.asm.CodeAdapter

visitAttribute, visitFieldInsn, visitInsn, visitIntInsn, visitJumpInsn, visitLabel, visitLdcInsn, visitLineNumber, visitLookupSwitchInsn, visitMethodInsn, visitMultiANewArrayInsn, visitTableSwitchInsn, visitTryCatchBlock, visitTypeInsn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BOOLEAN_VALUE

private static final Signature BOOLEAN_VALUE

CHAR_VALUE

private static final Signature CHAR_VALUE

LONG_VALUE

private static final Signature LONG_VALUE

DOUBLE_VALUE

private static final Signature DOUBLE_VALUE

FLOAT_VALUE

private static final Signature FLOAT_VALUE

INT_VALUE

private static final Signature INT_VALUE

CSTRUCT_NULL

private static final Signature CSTRUCT_NULL

CSTRUCT_STRING

private static final Signature CSTRUCT_STRING

ADD

public static final int ADD

See Also:

Constant Field Values

MUL

public static final int MUL

See Also:

Constant Field Values

XOR

public static final int XOR

See Also:

Constant Field Values

USHR

public static final int USHR

See Also:

Constant Field Values

SUB

public static final int SUB

See Also:

Constant Field Values

DIV

public static final int DIV

See Also:

Constant Field Values

NEG

public static final int NEG

See Also:

Constant Field Values

REM

public static final int REM

See Also:

Constant Field Values

AND

public static final int AND

See Also:

Constant Field Values

OR

public static final int OR

See Also:

Constant Field Values

GT

public static final int GT

See Also:

Constant Field Values

LT

public static final int LT

See Also:

Constant Field Values

GE

public static final int GE

See Also:

Constant Field Values

LE

public static final int LE

See Also:

Constant Field Values

NE

public static final int NE

See Also:

Constant Field Values

EQ

public static final int EQ

See Also:

Constant Field Values

ce

private ClassEmitter ce

state

private CodeEmitter.State state

Constructor Detail

CodeEmitter

CodeEmitter(ClassEmitter ce,
            CodeVisitor cv,
            int access,
            Signature sig,
            Type[] exceptionTypes)

CodeEmitter

public CodeEmitter(CodeEmitter wrap)

Method Detail

isStaticHook

public boolean isStaticHook()

getSignature

public Signature getSignature()

getReturnType

public Type getReturnType()

getClassEmitter

public ClassEmitter getClassEmitter()

end_method

public void end_method()

begin_block

public Block begin_block()

catch_exception

public void catch_exception(Block block,
                            Type exception)

goTo

public void goTo(Label label)

ifnull

public void ifnull(Label label)

ifnonnull

public void ifnonnull(Label label)

if_jump

public void if_jump(int mode,
                    Label label)

if_icmp

public void if_icmp(int mode,
                    Label label)

if_cmp

public void if_cmp(Type type,
                   int mode,
                   Label label)

pop

public void pop()

pop2

public void pop2()

dup

public void dup()

dup2

public void dup2()

dup_x1

public void dup_x1()

dup_x2

public void dup_x2()

dup2_x1

public void dup2_x1()

dup2_x2

public void dup2_x2()

swap

public void swap()

aconst_null

public void aconst_null()

swap

public void swap(Type prev,
                 Type type)

monitorenter

public void monitorenter()

monitorexit

public void monitorexit()

math

public void math(int op,
                 Type type)

array_load

public void array_load(Type type)

array_store

public void array_store(Type type)

cast_numeric

public void cast_numeric(Type from,
                         Type to)

Casts from one primitive numeric type to another

push

public void push(int i)

push

public void push(long value)

push

public void push(float value)

push

public void push(double value)

push

public void push(java.lang.String value)

newarray

public void newarray()

newarray

public void newarray(Type type)

arraylength

public void arraylength()

load_this

public void load_this()

load_args

public void load_args()

Pushes all of the arguments of the current method onto the stack.

load_arg

public void load_arg(int index)

Pushes the specified argument of the current method onto the stack.

Parameters:

index - the zero-based index into the argument list

load_args

public void load_args(int fromArg,
                      int count)

skipArgs

private int skipArgs(int numArgs)

load_local

private void load_local(Type t,
                        int pos)

store_local

private void store_local(Type t,
                         int pos)

iinc

public void iinc(Local local,
                 int amount)

store_local

public void store_local(Local local)

load_local

public void load_local(Local local)

return_value

public void return_value()

getfield

public void getfield(java.lang.String name)

putfield

public void putfield(java.lang.String name)

super_getfield

public void super_getfield(java.lang.String name,
                           Type type)

super_putfield

public void super_putfield(java.lang.String name,
                           Type type)

super_getstatic

public void super_getstatic(java.lang.String name,
                            Type type)

super_putstatic

public void super_putstatic(java.lang.String name,
                            Type type)

getfield

public void getfield(Type owner,
                     java.lang.String name,
                     Type type)

putfield

public void putfield(Type owner,
                     java.lang.String name,
                     Type type)

getstatic

public void getstatic(Type owner,
                      java.lang.String name,
                      Type type)

putstatic

public void putstatic(Type owner,
                      java.lang.String name,
                      Type type)

emit_field

void emit_field(int opcode,
                Type ctype,
                java.lang.String name,
                Type ftype)

super_invoke

public void super_invoke()

super_invoke

public void super_invoke(Signature sig)

invoke_constructor

public void invoke_constructor(Type type)

super_invoke_constructor

public void super_invoke_constructor()

invoke_constructor_this

public void invoke_constructor_this()

emit_invoke

private void emit_invoke(int opcode,
                         Type type,
                         Signature sig)

invoke_interface

public void invoke_interface(Type owner,
                             Signature sig)

invoke_virtual

public void invoke_virtual(Type owner,
                           Signature sig)

invoke_static

public void invoke_static(Type owner,
                          Signature sig)

invoke_virtual_this

public void invoke_virtual_this(Signature sig)

invoke_static_this

public void invoke_static_this(Signature sig)

invoke_constructor

public void invoke_constructor(Type type,
                               Signature sig)

invoke_constructor_this

public void invoke_constructor_this(Signature sig)

super_invoke_constructor

public void super_invoke_constructor(Signature sig)

new_instance_this

public void new_instance_this()

new_instance

public void new_instance(Type type)

emit_type

private void emit_type(int opcode,
                       Type type)

aaload

public void aaload(int index)

aaload

public void aaload()

aastore

public void aastore()

athrow

public void athrow()

make_label

public Label make_label()

make_local

public Local make_local()

make_local

public Local make_local(Type type)

checkcast_this

public void checkcast_this()

checkcast

public void checkcast(Type type)

instance_of

public void instance_of(Type type)

instance_of_this

public void instance_of_this()

process_switch

public void process_switch(int[] keys,
                           ProcessSwitchCallback callback)

process_switch

public void process_switch(int[] keys,
                           ProcessSwitchCallback callback,
                           boolean useTable)

isSorted

private static boolean isSorted(int[] keys)

mark

public void mark(Label label)

mark

Label mark()

push

public void push(boolean value)

not

public void not()

Toggles the integer on the top of the stack from 1 to 0 or vice versa

throw_exception

public void throw_exception(Type type,
                            java.lang.String msg)

box

public void box(Type type)

If the argument is a primitive class, replaces the primitive value on the top of the stack with the wrapped (Object) equivalent. For example, char -> Character. If the class is Void, a null is pushed onto the stack instead.

Parameters:

type - the class indicating the current type of the top stack value

unbox

public void unbox(Type type)

If the argument is a primitive class, replaces the object on the top of the stack with the unwrapped (primitive) equivalent. For example, Character -> char.

Parameters:

type - the class indicating the desired type of the top stack value

create_arg_array

public void create_arg_array()

Allocates and fills an Object[] array with the arguments to the current method. Primitive values are inserted as their boxed (Object) equivalents.

zero_or_null

public void zero_or_null(Type type)

Pushes a zero onto the stack if the argument is a primitive class, or a null otherwise.

unbox_or_zero

public void unbox_or_zero(Type type)

Unboxes the object on the top of the stack. If the object is null, the unboxed primitive value becomes zero.

visitMaxs

public void visitMaxs(int maxStack,
                      int maxLocals)

Description copied from interface: CodeVisitor

Visits the maximum stack size and the maximum number of local variables of the method.

Specified by:

visitMaxs in interface CodeVisitor

Overrides:

visitMaxs in class RemappingCodeVisitor

Parameters:

maxStack - maximum stack size of the method.

maxLocals - maximum number of local variables for the method.

invoke

public void invoke(java.lang.reflect.Method method)

define_attribute

public void define_attribute(Attribute attrs)