Package org.objectweb.asm
Class Label
- java.lang.Object
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- org.objectweb.asm.Label
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public class Label extends Object
A label represents a position in the bytecode of a method. Labels are used for jump, goto, and switch instructions, and for try catch blocks. A label designates the instruction that is just after. Note however that there can be other elements between a label and the instruction it designates (such as other labels, stack map frames, line numbers, etc.).- Author:
- Eric Bruneton
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Constructor Summary
Constructors Constructor Description Label()
Constructs a new label.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getOffset()
Returns the offset corresponding to this label.String
toString()
Returns a string representation of this label.
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Field Detail
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info
public Object info
Field used to associate user information to a label. Warning: this field is used by the ASM tree package. In order to use it with the ASM tree package you must override theMethodNode.getLabelNode(org.objectweb.asm.Label)
method.
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Method Detail
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getOffset
public int getOffset()
Returns the offset corresponding to this label. This offset is computed from the start of the method's bytecode. This method is intended forAttribute
sub classes, and is normally not needed by class generators or adapters.- Returns:
- the offset corresponding to this label.
- Throws:
IllegalStateException
- if this label is not resolved yet.
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