@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    PsiJavaElementPattern.Capture<PsiLiteralExpression> pattern = PsiJavaPatterns
            .literalExpression()
            .insideAnnotationParam(CamelIdeaUtils.BEAN_INJECT_ANNOTATION);

    registrar.registerReferenceProvider(pattern, new CamelPsiReferenceProvider() {
        @Override
        protected PsiReference[] getCamelReferencesByElement(PsiElement element, ProcessingContext context) {
            PsiNameValuePair param = PsiTreeUtil.getParentOfType(element, PsiNameValuePair.class);
            if (param != null && param.getAttributeName().equals("value")) {
                String value = param.getLiteralValue();
                if (value != null) {
                    return new PsiReference[] {new BeanReference(element, value)};
                }
            }
            return new PsiReference[0];
        }
    });
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {

  registrar.registerReferenceProvider(
      PlatformPatterns.psiElement(BuckIdentifier.class),
      new PsiReferenceProvider() {
        @NotNull
        @Override
        public PsiReference[] getReferencesByElement(
            @NotNull PsiElement element, @NotNull ProcessingContext context) {
          if (element instanceof BuckIdentifier) {
            BuckIdentifier identifier = (BuckIdentifier) element;
            return new PsiReference[] {new BuckIdentifierReference(identifier)};
          } else {
            return new PsiReference[0];
          }
        }
      });
}
 

@Override
public void registerReferenceProviders(PsiReferenceRegistrar registrar) {
    registrar.registerReferenceProvider(StandardPatterns.instanceOf(PhpPsiElement.class), new YiiPsiReferenceProvider());
    registrar.registerReferenceProvider(
            PlatformPatterns.psiElement(PsiElement.class).withParent(isParamListInMethodWithName(".+?widget\\(.+"))
            , new WidgetCallReferenceProvider());
    //View-to-view
    registrar.registerReferenceProvider(
            PlatformPatterns.psiElement(PhpPsiElement.class)
                    .withParent(isParamListInMethodWithName(".+?render(Partial)*\\(.+"))
                    .andNot(inFile(PlatformPatterns.string().endsWith("Controller.php")))
            , new ViewRenderViewReferenceProvider());
    //Controller-to-view
    registrar.registerReferenceProvider(
            PlatformPatterns.psiElement(PhpPsiElement.class)
                    .withParent(isParamListInMethodWithName("(?sim).+?render(Partial)*\\(.+"))
                    .and(inFile(PlatformPatterns.string().endsWith("Controller.php")))
            , new ControllerRenderViewReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
  registrar.registerReferenceProvider(
      PlatformPatterns.or(
          instanceOf(IdentifierMixin.class),
          instanceOf(ParamIdentifierMixin.class)),
      PSI_REFERENCE_PROVIDER);
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    registrar.registerReferenceProvider(
            PlatformPatterns.psiElement(YAMLKeyValue.class),
            new NodeTypeReferenceProvider()
    );
}
 

@Override
public void registerReferenceProviders(@NotNull final PsiReferenceRegistrar registrar) {
  registrar.registerReferenceProvider(localDefinitionsPattern(), createLocalReferenceProvider());
  registrar.registerReferenceProvider(
      mappingSchemaNamePattern(), createSchemaNameReferenceProvider());

  registrar.registerReferenceProvider(filePattern(), createFileReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull final PsiReferenceRegistrar registrar) {
  registrar.registerReferenceProvider(localDefinitionsPattern(), createLocalReferenceProvider());
  registrar.registerReferenceProvider(
      mappingSchemaNamePattern(), createSchemaNameReferenceProvider());

  registrar.registerReferenceProvider(filePattern(), createFileReferenceProvider());
}
 

@Override
public void registerReferenceProviders(PsiReferenceRegistrar registrar) {
  JavaClassReferenceProvider provider = new JavaClassReferenceProvider();
  provider.setOption(JavaClassReferenceProvider.CLASS_KIND, ClassKind.CLASS);
  registrar.registerReferenceProvider(
      JavaClassQualifiedNameReference.PATTERN, new JavaClassReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
  registrar.registerReferenceProvider(
    psiElement(PyStringLiteralExpression.class),
    new PantsTargetPathReferenceProvider()
  );
}
 

@Override
public void registerReferenceProviders(PsiReferenceRegistrar registrar) {
    PsiElementPattern.Capture<PsiNamedElement> variableCapture =
            PlatformPatterns.psiElement(PsiNamedElement.class).withParent(HaskellVars.class).withParent(HaskellGendecl.class).withLanguage(HaskellLanguage.INSTANCE);
    registrar.registerReferenceProvider(variableCapture,
            new HaskellReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    registrar.registerReferenceProvider(PlatformPatterns.psiElement(NASMNamedElement.class),
                                        new NASMReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    registrar.registerReferenceProvider(psiElement()
                    .withText(string().startsWith(INCLUDE_TAG))
            , new IncludeFilePathReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    registrar.registerReferenceProvider(PlatformPatterns.psiElement(XmlAttributeValue.class), new BlueprintJavaClassReferenceProvider());
    registrar.registerReferenceProvider(PlatformPatterns.psiElement(XmlAttributeValue.class), new BeanReferenceProvider());
    registrar.registerReferenceProvider(PlatformPatterns.psiElement(XmlAttributeValue.class), new BlueprintPropertyNameReferenceProvider());
}
 

@Override
public void registerReferenceProviders(@NotNull PsiReferenceRegistrar registrar) {
    CamelEndpointPsiReferenceProvider provider = createProvider();
    registrar.registerReferenceProvider(PsiJavaPatterns.literalExpression(), provider);
    registrar.registerReferenceProvider(XmlPatterns.xmlAttributeValue("uri"), provider);
}
 

@Override
public void registerReferenceProviders(@Nonnull final PsiReferenceRegistrar registrar) {
  registrar.registerReferenceProvider(PlatformPatterns.psiElement(PsiExtraFile.class), new PsiExtraFileReferenceProvider());
}
 

@Override
public void registerReferenceProviders(PsiReferenceRegistrar psiReferenceRegistrar) {
    RequirejsPsiReferenceProvider provider = new RequirejsPsiReferenceProvider();

    psiReferenceRegistrar.registerReferenceProvider(StandardPatterns.instanceOf(JSLiteralExpression.class), provider);
}
 

@Override
public void registerReferenceProviders(PsiReferenceRegistrar registrar) {
    registrar.registerReferenceProvider(categoryPattern(), new I18nReferenceProvider());

}
 

@Override
public PsiReferenceRegistrar getRegistrar(Language language) {
  return null;
}
 

@Override
public void registerReferenceProviders(@Nonnull PsiReferenceRegistrar registrar) {
  registrar.registerReferenceProvider(PlatformPatterns.psiElement(PsiComment.class), COMMENTS_REFERENCE_PROVIDER_TYPE.getProvider());
}
 

@Override
public void registerReferenceProviders(PsiReferenceRegistrar psiReferenceRegistrar) {

    psiReferenceRegistrar.registerReferenceProvider(PhpPatterns.psiElement(PhpElementTypes.PARAMETER),
            new PhpStringLiteralExpressionReference(ParameterReference.class)
                    .addCall("Yii", "getParameter")
    );


}