Package org.apache.bcel.classfile
Class LineNumber
java.lang.Object
org.apache.bcel.classfile.LineNumber
This class represents a (PC offset, line number) pair, i.e., a line number in the source that corresponds to a
relative address in the byte code. This is used for debugging purposes.
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescription(package private) static final LineNumber[]
private int
Number in source fileprivate int
Program Counter (PC) corresponds to line -
Constructor Summary
ConstructorsConstructorDescriptionLineNumber
(int startPc, int lineNumber) LineNumber
(DataInput file) Constructs object from file stream.Initialize from another object. -
Method Summary
Modifier and TypeMethodDescriptionvoid
Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class.copy()
void
dump
(DataOutputStream file) Dump line number/pc pair to file stream in binary format.int
int
void
setLineNumber
(int lineNumber) void
setStartPC
(int startPc) toString()
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Field Details
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EMPTY_ARRAY
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startPc
private int startPcProgram Counter (PC) corresponds to line -
lineNumber
private int lineNumberNumber in source file
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Constructor Details
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LineNumber
LineNumber(DataInput file) throws IOException Constructs object from file stream.- Parameters:
file
- Input stream- Throws:
IOException
- if an I/O Exception occurs in readUnsignedShort
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LineNumber
public LineNumber(int startPc, int lineNumber) - Parameters:
startPc
- Program Counter (PC) corresponds tolineNumber
- line number in source file
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LineNumber
Initialize from another object.- Parameters:
c
- the object to 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
- Returns:
- deep copy of this object
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dump
Dump line number/pc pair to file stream in binary format.- Parameters:
file
- Output file stream- Throws:
IOException
- if an I/O Exception occurs in writeShort
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getLineNumber
public int getLineNumber()- Returns:
- Corresponding source line
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getStartPC
public int getStartPC()- Returns:
- PC in code
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setLineNumber
public void setLineNumber(int lineNumber) - Parameters:
lineNumber
- the source line number
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setStartPC
public void setStartPC(int startPc) - Parameters:
startPc
- the pc for this line number
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toString
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