OpenJDK 27 · com.sun.tools.javac.util.DiagnosticSource

A simple abstraction of a source file, as needed for use in a diagnostic message. Provides access to the line and position in a line for any given character offset.

This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

Field Summary

Modifier and Type	Field and Description
protected char[]	buf A temporary hard reference to the content of the file object.
protected int	bufLen The length of the content.
protected JavaFileObject	fileObject The underlying file object.
protected int	line The line number of a line found by findLine.
protected int	lineStart The start of a line found by findLine.
protected AbstractLog	log A log for reporting errors, such as errors accessing the content.
public static final DiagnosticSource	NO_SOURCE
protected SoftReference<char[]>	refBuf A soft reference to the content of the file object.

Constructor Summary

Access	Constructor and Description
public	DiagnosticSource(JavaFileObject fo, AbstractLog log)
private	DiagnosticSource()

Method Summary

Modifier and Type	Method and Description
protected boolean	findLine(int Character offset into the buffer pos) Find the line in the buffer that contains the current position
public int	getColumnNumber(int pos, boolean expandTabs) Return the one-based column number associated with a given pos for the current source file.
public JavaFileObject	getFile() Return the underlying file object handled by this DiagnosticSource object.
public String	getLine(int pos) Return the content of the line containing a given pos.
public int	getLineNumber(int pos) Return the one-based line number associated with a given pos for the current source file.
protected char[]	initBuf(JavaFileObject fileObject)

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

Field Detail

buf	back to summary
protected char[] buf A temporary hard reference to the content of the file object.

bufLen	back to summary
protected int bufLen The length of the content.

fileObject	back to summary
protected JavaFileObject fileObject The underlying file object.

line	back to summary
protected int line The line number of a line found by findLine.

lineStart	back to summary
protected int lineStart The start of a line found by findLine.

log	back to summary
protected AbstractLog log A log for reporting errors, such as errors accessing the content.

NO_SOURCE	back to summary
public static final DiagnosticSource NO_SOURCE

refBuf	back to summary
protected SoftReference<char[]> refBuf A soft reference to the content of the file object.

Constructor Detail

DiagnosticSource	back to summary
public DiagnosticSource(JavaFileObject fo, AbstractLog log)

DiagnosticSource	back to summary
private DiagnosticSource()

Method Detail

findLine	back to summary
protected boolean findLine(int pos) Find the line in the buffer that contains the current position Parameters pos:int Character offset into the buffer

findLine

back to summary

protected boolean findLine(int pos)

Find the line in the buffer that contains the current position

Parameters

pos:int: Character offset into the buffer

getColumnNumber	back to summary
public int getColumnNumber(int pos, boolean expandTabs) Return the one-based column number associated with a given pos for the current source file. Zero is returned if no column exists for the given position.

getFile	back to summary
public JavaFileObject getFile() Return the underlying file object handled by this DiagnosticSource object.

getLine	back to summary
public String getLine(int pos) Return the content of the line containing a given pos.

getLineNumber	back to summary
public int getLineNumber(int pos) Return the one-based line number associated with a given pos for the current source file. Zero is returned if no line exists for the given position.