main.io.github.tabilzad.ktor.KtorMetaPluginRegistrar.kt Maven / Gradle / Ivy

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Open API (Swagger) specification Generator for Ktor

There is a newer version: 0.6.5-alpha

@file:OptIn(ExperimentalCompilerApi::class)

package io.github.tabilzad.ktor

import io.github.tabilzad.ktor.k1.DeclarationExtension
import io.github.tabilzad.ktor.k2.SwaggerDeclarationChecker
import org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar
import org.jetbrains.kotlin.compiler.plugin.ExperimentalCompilerApi
import org.jetbrains.kotlin.config.CompilerConfiguration
import org.jetbrains.kotlin.config.JVMConfigurationKeys
import org.jetbrains.kotlin.extensions.StorageComponentContainerContributor
import org.jetbrains.kotlin.fir.FirSession
import org.jetbrains.kotlin.fir.analysis.checkers.declaration.DeclarationCheckers
import org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirSimpleFunctionChecker
import org.jetbrains.kotlin.fir.analysis.extensions.FirAdditionalCheckersExtension
import org.jetbrains.kotlin.fir.analysis.extensions.FirAdditionalCheckersExtension.Factory
import org.jetbrains.kotlin.fir.extensions.FirExtensionRegistrar
import org.jetbrains.kotlin.fir.extensions.FirExtensionRegistrarAdapter


open class KtorMetaPluginRegistrar : CompilerPluginRegistrar() {
    override val supportsK2: Boolean
        get() = true

    @OptIn(ExperimentalCompilerApi::class)
    override fun ExtensionStorage.registerExtensions(configuration: CompilerConfiguration) {
        configuration.put(JVMConfigurationKeys.IR, true)
        val config = configuration.buildPluginConfiguration()
        // K1
        StorageComponentContainerContributor.registerExtension(DeclarationExtension(config))
        // K2
        FirExtensionRegistrarAdapter.registerExtension(SwaggerCheckers(configuration))
    }
}


class FirCheckers(session: FirSession, configuration: CompilerConfiguration) : FirAdditionalCheckersExtension(session) {
    override val declarationCheckers: DeclarationCheckers = object : DeclarationCheckers() {
        // these could probably be ExpressionCheckers instead of Declaration
        override val simpleFunctionCheckers: Set =
            setOf(SwaggerDeclarationChecker(session, configuration))
    }

    companion object {
        fun getFactory(configuration: CompilerConfiguration): Factory {
            return Factory { session -> FirCheckers(session, configuration) }
        }
    }
}

class SwaggerCheckers(private val configuration: CompilerConfiguration) : FirExtensionRegistrar() {
    override fun ExtensionRegistrarContext.configurePlugin() {
        +FirCheckers.getFactory(configuration)
    }
}