AspectJ Weaver 1.9.20.1 · org.aspectj.apache.bcel.generic.Instruction

Modifier and Type	Field and Description
public short	opcode

Access	Constructor and Description
public	Instruction(short opcode)

Method Summary

Modifier and Type	Method and Description
public int	Returns: Number of words consumed from stack by this instruction, or Constants.UNPREDICTABLE, if this can not be computed statically consumeStack(ConstantPool cpg)
public final Instruction	Returns: (shallow) copy of an instruction copy() Use with caution, since 'BranchInstruction's have a 'target' reference which is not copied correctly (only basic types are).
pack-priv void	dispose() Some instructions may be reused, so don't do anything by default
public void	dump(DataOutputStream out)
public boolean	equals(Object the reference object with which to compare. other) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public int	getIndex()
public int	getLength()
public ObjectType	getLoadClassType(ConstantPool cpg)
public String	getName()
public short	getOpcode()
public Type	getType()
public Type	getType(ConstantPool cp)
public Number	getValue()
public Object	getValue(ConstantPool cpg)
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for the object.
public boolean	isALOAD()
public boolean	isArrayCreationInstruction()
public boolean	isASTORE()
public boolean	isConstantInstruction()
public boolean	isConstantPoolInstruction()
public boolean	isIndexedInstruction()
public boolean	isJsrInstruction()
public boolean	isLoadInstruction()
public boolean	isLocalVariableInstruction()
public boolean	isReturnInstruction()
public boolean	isStackConsumer()
public boolean	isStackProducer()
public boolean	isStoreInstruction()
public int	Returns: Number of words produced onto stack by this instruction, or Constants.UNPREDICTABLE, if this can not be computed statically produceStack(ConstantPool cpg)
public static final Instruction	Returns: instruction object being read readInstruction(ByteSequence file to read from bytes) Read an instruction bytecode from an input stream and return the appropriate object.
public void	setIndex(int i)
public String	toString(boolean verbose) Long output format: 'name of opcode' "[" 'opcode number' "]" "(" 'length of instruction' ")"
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from java.lang.Object:: clone finalize getClass notify notifyAll wait wait wait

opcode	back to summary
public short opcode

Instruction	back to summary
public Instruction(short opcode)

Method Detail

consumeStack	back to summary
public int consumeStack(ConstantPool cpg) Returns:int Number of words consumed from stack by this instruction, or Constants.UNPREDICTABLE, if this can not be computed statically

copy	back to summary
public final Instruction copy() Use with caution, since 'BranchInstruction's have a 'target' reference which is not copied correctly (only basic types are). This also applies for 'Select' instructions with their multiple branch targets. Returns:Instruction (shallow) copy of an instruction

copy

back to summary

public final Instruction copy()

Use with caution, since 'BranchInstruction's have a 'target' reference which is not copied correctly (only basic types are). This also applies for 'Select' instructions with their multiple branch targets.

Returns:Instruction: (shallow) copy of an instruction

dispose	back to summary
pack-priv void dispose() Some instructions may be reused, so don't do anything by default

dump	back to summary
public void dump(DataOutputStream out) throws IOException

equals back to summary

equals	back to summary
public boolean equals(Object other) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters other:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object other)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

other:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

getIndex	back to summary
public int getIndex()

getLength	back to summary
public int getLength()

getLoadClassType	back to summary
public ObjectType getLoadClassType(ConstantPool cpg)

getName	back to summary
public String getName()

getOpcode	back to summary
public short getOpcode()

getType	back to summary
public Type getType()

getType	back to summary
public Type getType(ConstantPool cp)

getValue	back to summary
public Number getValue()

getValue	back to summary
public Object getValue(ConstantPool cpg)

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object. Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object.

Annotations

@Override

isALOAD	back to summary
public boolean isALOAD()

isArrayCreationInstruction	back to summary
public boolean isArrayCreationInstruction()

isASTORE	back to summary
public boolean isASTORE()

isConstantInstruction	back to summary
public boolean isConstantInstruction()

isConstantPoolInstruction	back to summary
public boolean isConstantPoolInstruction()

isIndexedInstruction	back to summary
public boolean isIndexedInstruction()

isJsrInstruction	back to summary
public boolean isJsrInstruction()

isLoadInstruction	back to summary
public boolean isLoadInstruction()

isLocalVariableInstruction	back to summary
public boolean isLocalVariableInstruction()

isReturnInstruction	back to summary
public boolean isReturnInstruction()

isStackConsumer	back to summary
public boolean isStackConsumer()

isStackProducer	back to summary
public boolean isStackProducer()

isStoreInstruction	back to summary
public boolean isStoreInstruction()

produceStack	back to summary
public int produceStack(ConstantPool cpg) Returns:int Number of words produced onto stack by this instruction, or Constants.UNPREDICTABLE, if this can not be computed statically

readInstruction	back to summary
public static final Instruction readInstruction(ByteSequence bytes) throws IOException Read an instruction bytecode from an input stream and return the appropriate object. Parameters bytes:ByteSequence file to read from Returns:Instruction instruction object being read

readInstruction

back to summary

public static final Instruction readInstruction(ByteSequence bytes) throws IOException

Read an instruction bytecode from an input stream and return the appropriate object.

Parameters

bytes:ByteSequence: file to read from

Returns:Instruction

instruction object being read

setIndex	back to summary
public void setIndex(int i)

toString	back to summary
public String toString(boolean verbose) Long output format: 'name of opcode' "[" 'opcode number' "]" "(" 'length of instruction' ")"

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Returns:String a string representation of the object. Annotations @Override

toString

back to summary

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations

@Override

public Class Instruction

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Field Detail

Constructor Detail

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