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package org.jetbrains.dokka.Samples
import com.google.inject.Inject
import com.intellij.psi.PsiElement
import org.jetbrains.dokka.DocumentationOptions
import org.jetbrains.dokka.DokkaLogger
import org.jetbrains.dokka.DokkaResolutionFacade
import org.jetbrains.kotlin.psi.*
open class KotlinWebsiteSampleProcessingService
@Inject constructor(options: DocumentationOptions,
logger: DokkaLogger,
resolutionFacade: DokkaResolutionFacade)
: DefaultSampleProcessingService(options, logger, resolutionFacade) {
private class SampleBuilder() : KtVisitorVoid() {
val builder = StringBuilder()
val text: String
get() = builder.toString()
fun convertAssertPrints(expression: KtCallExpression) {
val (argument, commentArgument) = expression.valueArguments
val comment = commentArgument.getArgumentExpression() as KtStringTemplateExpression
val commentText = comment.entries.joinToString("") { it.text }
builder.apply {
append("println(")
append(argument.text)
append(") // ")
append(commentText)
}
}
fun convertAssertTrue(expression: KtCallExpression) {
val (argument) = expression.valueArguments
builder.apply {
append("println(\"")
append(argument.text)
append(" is \${")
append(argument.text)
append("}\") // true")
}
}
override fun visitCallExpression(expression: KtCallExpression) {
when (expression.calleeExpression?.text) {
"assertPrints" -> convertAssertPrints(expression)
"assertTrue" -> convertAssertTrue(expression)
else -> super.visitCallExpression(expression)
}
}
override fun visitElement(element: PsiElement?) {
if (element != null) {
if (element.children.isEmpty())
builder.append(element.text)
else
element.acceptChildren(this)
}
}
}
private fun PsiElement.buildSampleText(): String {
val sampleBuilder = SampleBuilder()
this.accept(sampleBuilder)
return sampleBuilder.text
}
override fun processSampleBody(psiElement: PsiElement) = when (psiElement) {
is KtDeclarationWithBody -> {
val bodyExpression = psiElement.bodyExpression
val bodyExpressionText = bodyExpression!!.buildSampleText()
when (bodyExpression) {
is KtBlockExpression -> bodyExpressionText.removeSurrounding("{", "}")
else -> bodyExpressionText
}
}
else -> psiElement.buildSampleText()
}
}
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