Package org.apache.bcel.classfile
Class LineNumberTable
java.lang.Object
org.apache.bcel.classfile.Attribute
org.apache.bcel.classfile.LineNumberTable
- All Implemented Interfaces:
Cloneable,Iterable<LineNumber>,Node
This class represents a table of line numbers for debugging purposes. This attribute is used by the Code
attribute. It contains pairs of PCs and line numbers.
- See Also:
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Field Summary
Fields inherited from class org.apache.bcel.classfile.Attribute
constant_pool, EMPTY_ARRAY, length, name_index, tag -
Constructor Summary
ConstructorsConstructorDescriptionLineNumberTable(int nameIndex, int length, LineNumber[] lineNumberTable, ConstantPool constantPool) Constructs a new instance.Constructs a new instance from another. -
Method Summary
Modifier and TypeMethodDescriptionvoidCalled by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.copy(ConstantPool constantPool) voiddump(DataOutputStream file) Dump line number table attribute to file stream in binary format.intgetSourceLine(int pos) Map byte code positions to source code lines.intiterator()voidsetLineNumberTable(LineNumber[] lineNumberTable) toString()Methods inherited from class org.apache.bcel.classfile.Attribute
addAttributeReader, addAttributeReader, clone, getConstantPool, getLength, getName, getNameIndex, getTag, println, readAttribute, readAttribute, removeAttributeReader, setConstantPool, setLength, setNameIndexMethods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface java.lang.Iterable
forEach, spliterator
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Constructor Details
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LineNumberTable
public LineNumberTable(int nameIndex, int length, LineNumber[] lineNumberTable, ConstantPool constantPool) Constructs a new instance.- Parameters:
nameIndex- Index of namelength- Content length in byteslineNumberTable- Table of line/numbers pairsconstantPool- Array of constants
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LineNumberTable
Constructs a new instance from another.Note that both objects use the same references (shallow copy). Use copy() for a physical copy.
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Method Details
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accept
Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects. -
copy
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dump
Dump line number table attribute to file stream in binary format.- Overrides:
dumpin classAttribute- Parameters:
file- Output file stream- Throws:
IOException- if an I/O Exception occurs in writeShort
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getLineNumberTable
- Returns:
- Array of (pc offset, line number) pairs.
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getSourceLine
Map byte code positions to source code lines.- Parameters:
pos- byte code offset- Returns:
- corresponding line in source code
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getTableLength
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iterator
- Specified by:
iteratorin interfaceIterable<LineNumber>
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setLineNumberTable
- Parameters:
lineNumberTable- the line number entries for this table
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toString
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