Package dev.amp.validator.visitor

Class Amp4AdsVisitor

java.lang.Object

dev.amp.validator.visitor.Amp4AdsVisitor

All Implemented Interfaces:

RuleVisitor

public class Amp4AdsVisitor
extends Object
implements RuleVisitor

A visitor class extension to handle amp4ads validation of css tokens.

Author:

nhant01, GeorgeLuo

Constructor Summary

Constructors

Constructor	Description
Amp4AdsVisitor(List<ErrorToken> errors)	Constructor.

Method Summary

Modifier and Type	Method	Description
static ErrorToken	createParseErrorTokenAt(com.steadystate.css.parser.Token positionToken, dev.amp.validator.ValidatorProtos.ValidationError.Code code, List<String> params)	Fills an ErrorToken with the provided position, code, and params.
void	leaveAtRule(AtRule atRule)	Leave an atRule.
void	visitAtRule(AtRule atRule)	Visit a rule.
void	visitDeclaration(Declaration declaration)	Visit a declaration.
void	visitQualifiedRule(QualifiedRule qualifiedRule)	Visit a qualified rule.

Methods inherited from class java.lang.Object

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

Methods inherited from interface dev.amp.validator.visitor.RuleVisitor

leaveDeclaration, leaveQualifiedRule, leaveStylesheet, visitStylesheet

Constructor Detail

Amp4AdsVisitor

public Amp4AdsVisitor(@Nonnull
                      List<ErrorToken> errors)

Constructor.

Parameters:

errors - to populate upon error encountered

Method Detail

visitDeclaration

public void visitDeclaration(@Nonnull
                             Declaration declaration)
                      throws CssValidationException

Visit a declaration.

Specified by:

visitDeclaration in interface RuleVisitor

Parameters:

declaration - to populate upon error encountered

Throws:

CssValidationException - Css Validation Exception

visitQualifiedRule

public void visitQualifiedRule(@Nonnull
                               QualifiedRule qualifiedRule)
                        throws CssValidationException

Visit a qualified rule.

Specified by:

visitQualifiedRule in interface RuleVisitor

Parameters:

qualifiedRule - to validate

Throws:

CssValidationException - Css Validation Exception

visitAtRule

public void visitAtRule(@Nonnull
                        AtRule atRule)

Visit a rule.

Specified by:

visitAtRule in interface RuleVisitor

Parameters:

atRule - to process

leaveAtRule

public void leaveAtRule(@Nonnull
                        AtRule atRule)

Leave an atRule.

Specified by:

leaveAtRule in interface RuleVisitor

Parameters:

atRule - unnecessary, must exist in method pattern

createParseErrorTokenAt

public static ErrorToken createParseErrorTokenAt(@Nonnull
                                                 com.steadystate.css.parser.Token positionToken,
                                                 @Nonnull
                                                 dev.amp.validator.ValidatorProtos.ValidationError.Code code,
                                                 @Nonnull
                                                 List<String> params)
                                          throws CssValidationException

Fills an ErrorToken with the provided position, code, and params.

Parameters:

positionToken - token generating an error

code - the code to populate error with

params - the error params to report

Returns:

the error list

Throws:

CssValidationException - Css Validation Exception