Package com.tonic.analysis.source.ast

Class SourceLocation

java.lang.Object

com.tonic.analysis.source.ast.SourceLocation

public final class SourceLocation
extends Object

Position of an AST node as a bytecode offset and source line number, either of which may be absent (-1).

Field Summary

Fields

Modifier and Type	Field	Description
static SourceLocation	UNKNOWN

Constructor Summary

Constructors

Constructor	Description
SourceLocation(int bytecodeOffset, int lineNumber)	Creates a location; pass -1 for a missing component.

Method Summary

Modifier and Type	Method	Description
int	bytecodeOffset()
boolean	equals(Object o)
static SourceLocation	fromLine(int line)	Creates a location with only a line number.
static SourceLocation	fromOffset(int offset)	Creates a location with only a bytecode offset.
int	hashCode()
boolean	hasLineNumber()
boolean	hasOffset()
int	lineNumber()
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

UNKNOWN

public static final SourceLocation UNKNOWN

Constructor Detail

SourceLocation

public SourceLocation(int bytecodeOffset,
                      int lineNumber)

Creates a location; pass -1 for a missing component.

Parameters:

bytecodeOffset - the bytecode offset, or -1 if unknown

lineNumber - the source line number, or -1 if unknown

Method Detail

fromOffset

public static SourceLocation fromOffset(int offset)

Creates a location with only a bytecode offset.

Parameters:

offset - the bytecode offset

Returns:

the location

fromLine

public static SourceLocation fromLine(int line)

Creates a location with only a line number.

Parameters:

line - the source line number

Returns:

the location

hasOffset

public boolean hasOffset()

Returns:

true if the bytecode offset is known

hasLineNumber

public boolean hasLineNumber()

Returns:

true if the line number is known

bytecodeOffset

public int bytecodeOffset()

Returns:

the bytecode offset, or -1 if unknown

lineNumber

public int lineNumber()

Returns:

the line number, or -1 if unknown

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object