com.google.javascript.jscomp

Class WhitelistWarningsGuard

java.lang.Object

com.google.javascript.jscomp.WarningsGuard

com.google.javascript.jscomp.WhitelistWarningsGuard

All Implemented Interfaces:

java.io.Serializable

@GwtIncompatible(value="java.io, java.util.regex")
public class WhitelistWarningsGuard
extends WarningsGuard

An extension of WarningsGuard that provides functionality to maintain a list of warnings (white-list). It is subclasses' responsibility to decide what to do with the white-list by implementing the level function. Warnings are defined by the name of the JS file and the first line of warnings description.

Author:

[email protected] (Anatol Pomazau), [email protected] (Bashir Sadjad)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	WhitelistWarningsGuard.WhitelistBuilder Whitelist builder

Nested classes/interfaces inherited from class com.google.javascript.jscomp.WarningsGuard

WarningsGuard.Priority

Constructor Summary

Constructors

Constructor and Description
WhitelistWarningsGuard()
WhitelistWarningsGuard(java.util.Set<java.lang.String> whitelist) This class depends on an input set that contains the white-list.

Method Summary

Modifier and Type	Method and Description
protected boolean	containWarning(java.lang.String formattedWarning) Determines whether a given warning is included in the white-list.
protected java.lang.String	formatWarning(JSError error) If subclasses want to modify the formatting, they should override #formatWarning(JSError, boolean), not this method.
protected java.lang.String	formatWarning(JSError error, boolean withMetaData)
static WhitelistWarningsGuard	fromFile(java.io.File file) Creates a warnings guard from a file.
static java.lang.String	getFirstLine(java.lang.String warning)
int	getPriority() The priority in which warnings guards are applied.
CheckLevel	level(JSError error) Returns a new check level for a given error.
protected static java.util.Set<java.lang.String>	loadWhitelistedJsWarnings(com.google.common.io.CharSource supplier) Loads legacy warnings list from the file.
static java.util.Set<java.lang.String>	loadWhitelistedJsWarnings(java.io.File file) Loads legacy warnings list from the file.
protected java.util.Set<java.lang.String>	normalizeWhitelist(java.util.Set<java.lang.String> whitelist) Loads legacy warnings list from the set of strings.

Methods inherited from class com.google.javascript.jscomp.WarningsGuard

disables, enables, makeNonStrict

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WhitelistWarningsGuard

public WhitelistWarningsGuard()

WhitelistWarningsGuard

public WhitelistWarningsGuard(java.util.Set<java.lang.String> whitelist)

This class depends on an input set that contains the white-list. The format of each white-list string is: <file-name>:<line-number>? <warning-description> # <optional-comment>

Parameters:

whitelist - The set of JS-warnings that are white-listed. This is expected to have similar format as formatWarning(JSError).

Method Detail

normalizeWhitelist

protected java.util.Set<java.lang.String> normalizeWhitelist(java.util.Set<java.lang.String> whitelist)

Loads legacy warnings list from the set of strings. During development line numbers are changed very often - we just cut them and compare without ones.

Returns:

known legacy warnings without line numbers.

level

public CheckLevel level(JSError error)

Description copied from class: WarningsGuard

Returns a new check level for a given error. OFF - suppress it, ERROR - report as error. null means that this guard does not know what to do with the error. Null is extremely helpful when you have a chain of guards. If current guard returns null, then the next in the chain should process it.

Specified by:

level in class WarningsGuard

Parameters:

error - a reported error.

Returns:

what level given error should have.

containWarning

protected boolean containWarning(java.lang.String formattedWarning)

Determines whether a given warning is included in the white-list.

Parameters:

formattedWarning - the warning formatted by formatWarning

Returns:

whether the given warning is white-listed or not.

getPriority

public int getPriority()

Description copied from class: WarningsGuard

The priority in which warnings guards are applied. Lower means the guard will be applied sooner. Expressed on a scale of 1 to 100.

Overrides:

getPriority in class WarningsGuard

fromFile

public static WhitelistWarningsGuard fromFile(java.io.File file)

Creates a warnings guard from a file.

loadWhitelistedJsWarnings

public static java.util.Set<java.lang.String> loadWhitelistedJsWarnings(java.io.File file)

Loads legacy warnings list from the file.

Returns:

The lines of the file.

loadWhitelistedJsWarnings

protected static java.util.Set<java.lang.String> loadWhitelistedJsWarnings(com.google.common.io.CharSource supplier)

Loads legacy warnings list from the file.

Returns:

The lines of the file.

formatWarning

protected java.lang.String formatWarning(JSError error)

If subclasses want to modify the formatting, they should override #formatWarning(JSError, boolean), not this method.

formatWarning

protected java.lang.String formatWarning(JSError error,
                                         boolean withMetaData)

Parameters:

withMetaData - If true, include metadata that's useful to humans This metadata won't be used for matching the warning.

getFirstLine

public static java.lang.String getFirstLine(java.lang.String warning)