Module jdk.scripting.nashorn

Package jdk.nashorn.api.tree

Interface Diagnostic

public interface Diagnostic

Interface for diagnostics from tools. A diagnostic usually reports a problem at a specific position in a source file. However, not all diagnostics are associated with a position or a file.

A position is a zero-based character offset from the beginning of a file. Negative values (except NOPOS) are not valid positions.

Line and column numbers begin at 1. Negative values (except NOPOS) and 0 are not valid line or column numbers.

Line terminator is as defined in ECMAScript specification which is one of { \u000A, \u000B, \u2028, \u2029 }.

Since:

9

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	Diagnostic.Kind	Kinds of diagnostics, for example, error or warning.

Field Summary

Fields

Modifier and Type	Field	Description
static long	NOPOS	Used to signal that no position is available.

Method Summary

Modifier and Type	Method	Description
String	getCode()	Gets a diagnostic code indicating the type of diagnostic.
long	getColumnNumber()	Gets the column number of the character offset returned by getPosition().
String	getFileName()	Gets the source file name.
Diagnostic.Kind	getKind()	Gets the kind of this diagnostic, for example, error or warning.
long	getLineNumber()	Gets the line number of the character offset returned by getPosition().
String	getMessage()	Gets a message for this diagnostic.
long	getPosition()	Gets a character offset from the beginning of the source object associated with this diagnostic that indicates the location of the problem.

Field Detail

NOPOS

static final long NOPOS

Used to signal that no position is available.

See Also:

Constant Field Values

Method Detail

getKind

Diagnostic.Kind getKind()

Gets the kind of this diagnostic, for example, error or warning.

Returns:

the kind of this diagnostic

getPosition

long getPosition()

Gets a character offset from the beginning of the source object associated with this diagnostic that indicates the location of the problem. In addition, the following must be true:

getStartPostion() <= getPosition()

getPosition() <= getEndPosition()

Returns:

character offset from beginning of source; NOPOS if no location is suitable

getFileName

String getFileName()

Gets the source file name.

Returns:

the file name or null if not available

getLineNumber

long getLineNumber()

Gets the line number of the character offset returned by getPosition().

Returns:

a line number or NOPOS if and only if getPosition() returns NOPOS

getColumnNumber

long getColumnNumber()

Gets the column number of the character offset returned by getPosition().

Returns:

a column number or NOPOS if and only if getPosition() returns NOPOS

getCode

String getCode()

Gets a diagnostic code indicating the type of diagnostic. The code is implementation-dependent and might be null.

Returns:

a diagnostic code

getMessage

String getMessage()

Gets a message for this diagnostic.

Returns:

a message