Example of ReferencerContributor added via LivePlugin (https://github.com/dkandalov/live-plugin/issues/146)

plugin.kts

import com.intellij.openapi.extensions.DefaultPluginDescriptor
import com.intellij.openapi.extensions.PluginId
import com.intellij.openapi.paths.WebReference
import com.intellij.openapi.util.TextRange
import com.intellij.patterns.PlatformPatterns
import com.intellij.psi.*
import com.intellij.psi.impl.source.resolve.reference.PsiReferenceContributorEP
import com.intellij.util.ProcessingContext
import org.jetbrains.kotlin.psi.KtStringTemplateExpression

// depends-on-plugin org.jetbrains.kotlin

val s = "github" // <- this string literal navigates to https://github.com

// Based on org.jetbrains.kotlin.idea.references.KotlinWebReferenceContributor
class ExampleContributor : PsiReferenceContributor() {
    override fun registerReferenceProviders(registrar: PsiReferenceRegistrar) {
        val pattern = PlatformPatterns.psiElement(KtStringTemplateExpression::class.java)
        val provider = object : PsiReferenceProvider() {
            override fun getReferencesByElement(element: PsiElement, context: ProcessingContext): Array<PsiReference> {
                val expression = element as? KtStringTemplateExpression
                return if (expression != null && expression.text.contains("github")) {
                    arrayOf(WebReference(expression, TextRange(0, expression.text.length), "https://github.com"))
                } else {
                    PsiReference.EMPTY_ARRAY
                }
            }
            override fun acceptsTarget(target: PsiElement) = false
        }
        registrar.registerReferenceProvider(pattern, provider)
    }
}

val contributorEP = PsiReferenceContributorEP().also {
    it.language = "kotlin"
    it.implementationClass = ExampleContributor::class.java.name
    it.pluginDescriptor = DefaultPluginDescriptor(PluginId.getId("LivePlugin"), ExampleContributor::class.java.classLoader)
}
PsiReferenceContributor.EP_NAME.point.registerExtension(contributorEP, pluginDisposable)

Hello,

This is giving me issues (in Rider):

error: type mismatch: inferred type is Class<KtStringTemplateExpression> but IElementType! was expected
        val pattern = PlatformPatterns.psiElement(KtStringTemplateExpression::class.java)

Sorry but I'm not involved in kotlin/java development, so this is all new to me...
Any help?