Diagnostics and resolve utilities

buildSrc/src/main/kotlin/Versions.kt

@@ -9,7 +9,7 @@
 
 object Versions {
     const val core = "1.3.0"
-    const val console = "1.0-M4"
+    const val console = "1.0-RC-dev-1"
     const val consoleGraphical = "0.0.7"
     const val consoleTerminal = "0.1.0"
     const val consolePure = console

tools/compiler-common/src/main/kotlin/net/mamoe/mirai/console/compiler/common/resolve/MiraiConsoleTypes.kt

@@ -9,7 +9,10 @@
 
 package net.mamoe.mirai.console.compiler.common.resolve
 
+import net.mamoe.mirai.console.compiler.common.castOrNull
+import org.jetbrains.kotlin.descriptors.annotations.Annotated
 import org.jetbrains.kotlin.name.FqName
+import org.jetbrains.kotlin.resolve.constants.EnumValue
 
 ///////////////////////////////////////////////////////////////////////////
 // Command
@@ -25,3 +28,33 @@ val SIMPLE_COMMAND_HANDLER_COMMAND_FQ_NAME = FqName("net.mamoe.mirai.console.com
 val PLUGIN_FQ_NAME = FqName("net.mamoe.mirai.console.plugin.Plugin")
 val JVM_PLUGIN_DESCRIPTION_FQ_NAME = FqName("net.mamoe.mirai.console.plugin.jvm.JvmPluginDescription")
 val SIMPLE_JVM_PLUGIN_DESCRIPTION_FQ_NAME = FqName("net.mamoe.mirai.console.plugin.jvm.JvmPluginDescription")
+
+///////////////////////////////////////////////////////////////////////////
+// Resolve
+///////////////////////////////////////////////////////////////////////////
+
+val RESOLVE_CONTEXT_FQ_NAME = FqName("net.mamoe.mirai.console.compiler.common.ResolveContext")
+
+/**
+ * net.mamoe.mirai.console.compiler.common.ResolveContext.Kind
+ */
+enum class ResolveContextKind {
+    PLUGIN_ID,
+    PLUGIN_NAME,
+    PLUGIN_VERSION,
+
+    ;
+
+    companion object {
+        fun valueOfOrNull(string: String): ResolveContextKind? = ResolveContextKind.values().find { it.name == string }
+    }
+}
+
+fun Annotated.isResolveContext(kind: ResolveContextKind) = this.resolveContextKind == kind
+
+val Annotated.resolveContextKind: ResolveContextKind?
+    get() {
+        val ann = this.findAnnotation(RESOLVE_CONTEXT_FQ_NAME) ?: return null
+        val (_, enumEntryName) = ann.allValueArguments.castOrNull<EnumValue>()?.value ?: return null // undetermined kind
+        return ResolveContextKind.valueOf(enumEntryName.asString())
+    }

tools/compiler-common/src/main/kotlin/net/mamoe/mirai/console/compiler/common/resolve/resolveCommon.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.compiler.common.resolve
+
+import org.jetbrains.kotlin.descriptors.annotations.Annotated
+import org.jetbrains.kotlin.name.FqName
+
+fun Annotated.hasAnnotation(fqName: FqName) = this.annotations.hasAnnotation(fqName)
+fun Annotated.findAnnotation(fqName: FqName) = this.annotations.findAnnotation(fqName)

tools/compiler-common/src/main/kotlin/net/mamoe/mirai/console/compiler/common/utilCommon.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.compiler.common
+
+import kotlin.contracts.contract
+
+
+fun <K, V> Map<K, V>.firstValue(): V = this.entries.first().value
+fun <K, V> Map<K, V>.firstKey(): K = this.entries.first().key
+
+
+inline fun <reified T : Any> Any?.castOrNull(): T? {
+    contract {
+        returnsNotNull() implies (this@castOrNull is T)
+    }
+    return this as? T
+}
+
+inline fun <reified T : Any> Any?.cast(): T {
+    contract {
+        returns() implies (this@cast is T)
+    }
+    return this as T
+}

tools/intellij-plugin/run/projects/test-project/build.gradle.kts

@@ -21,8 +21,8 @@ kotlin.sourceSets.all {
 dependencies {
     compileOnly(kotlin("stdlib-jdk8"))
 
-    val core = "1.2.3"
+    val core = "1.3.0"
-    val console = "1.0-M4"
+    val console = "1.0-RC-dev-1"
 
     compileOnly("net.mamoe:mirai-console:$console")
     compileOnly("net.mamoe:mirai-core:$core")

tools/intellij-plugin/run/projects/test-project/src/main/kotlin/org/example/myplugin/MyPluginMain.kt

@@ -1,163 +1,19 @@
-@file:Suppress("unused")
-
 package org.example.myplugin
 
-import com.google.auto.service.AutoService
-import kotlinx.serialization.Serializable
-import net.mamoe.mirai.Bot
-import net.mamoe.mirai.console.command.CommandManager.INSTANCE.register
-import net.mamoe.mirai.console.command.CommandManager.INSTANCE.unregister
-import net.mamoe.mirai.console.command.CommandSender
-import net.mamoe.mirai.console.command.CompositeCommand
-import net.mamoe.mirai.console.command.ConsoleCommandSender
-import net.mamoe.mirai.console.command.SimpleCommand
-import net.mamoe.mirai.console.data.AutoSavePluginConfig
-import net.mamoe.mirai.console.data.AutoSavePluginData
-import net.mamoe.mirai.console.data.PluginDataExtensions.mapKeys
-import net.mamoe.mirai.console.data.PluginDataExtensions.withEmptyDefault
-import net.mamoe.mirai.console.data.value
-import net.mamoe.mirai.console.permission.PermissionService
-import net.mamoe.mirai.console.permission.PermissionService.Companion.hasPermission
-import net.mamoe.mirai.console.plugin.jvm.JvmPlugin
 import net.mamoe.mirai.console.plugin.jvm.JvmPluginDescription
 import net.mamoe.mirai.console.plugin.jvm.KotlinPlugin
-import net.mamoe.mirai.console.util.scopeWith
-import net.mamoe.mirai.contact.Member
-import net.mamoe.mirai.message.data.Image
-import net.mamoe.mirai.utils.info
 
-@AutoService(JvmPlugin::class)
 object MyPluginMain : KotlinPlugin(
     JvmPluginDescription(
         "org.example.example-plugin",
         "0.1.0"
     )
 ) {
+    fun test() {
+
+    }
+}
+
+class PM : KotlinPlugin(
 
-    val PERMISSION_EXECUTE_1 = PermissionService.INSTANCE.register(
-        permissionId("execute1"),
-        "注册权限的示例"
 )
-
-
-    override fun onEnable() {
-        MySetting.reload() // 从数据库自动读取配置实例
-        MyPluginData.reload()
-
-        logger.info { "Hi: ${MySetting.name}" } // 输出一条日志.
-        logger.info("Hi: ${MySetting.name}") // 输出一条日志. 与上面一条相同, 但更推荐上面一条.
-        logger.verbose("Hi: ${MySetting.name}") // 多种日志级别可选
-
-        // 请不要使用 println, System.out.println 等标准输出方式. 请总是使用 logger.
-
-
-        MySetting.count++ // 对 Setting 的改动会自动在合适的时间保存
-
-        MySimpleCommand.register() // 注册指令
-    }
-
-    override fun onDisable() {
-        MySimpleCommand.unregister() // 取消注册指令
-    }
-}
-
-// 定义插件数据
-// 插件
-object MyPluginData : AutoSavePluginData() {
-    var list: MutableList<String> by value(mutableListOf("a", "b")) // mutableListOf("a", "b") 是初始值, 可以省略
-    var long: Long by value(0L) // 允许 var
-    var int by value(0) // 可以使用类型推断, 但更推荐使用 `var long: Long by value(0)` 这种定义方式.
-
-
-    // 带默认值的非空 map.
-    // notnullMap[1] 的返回值总是非 null 的 MutableMap<Int, String>
-    var notnullMap
-            by value<MutableMap<Int, MutableMap<Int, String>>>().withEmptyDefault()
-
-    // 可将 MutableMap<Long, Long> 映射到 MutableMap<Bot, Long>.
-    val botToLongMap: MutableMap<Bot, Long> by value<MutableMap<Long, Long>>().mapKeys(Bot::getInstance, Bot::id)
-}
-
-// 定义一个配置. 所有属性都会被追踪修改, 并自动保存.
-// 配置是插件与用户交互的接口, 但不能用来保存插件的数据.
-object MySetting : AutoSavePluginConfig() {
-    val name by value("test")
-
-    var count by value(0)
-
-    val nested by value<MyNestedData>() // 嵌套类型是支持的
-}
-
-@Serializable
-data class MyNestedData(
-    val list: List<String> = listOf(),
-)
-
-// 简单指令
-object MySimpleCommand : SimpleCommand(
-    MyPluginMain, "foo",
-    description = "示例指令"
-) {
-    // 会自动创建一个 ID 为 "org.example.example-plugin:command.foo" 的权限.
-
-
-    // 通过 /foo 调用, 参数自动解析
-    @Handler
-    suspend fun CommandSender.handle(int: Int, str: String) { // 函数名随意, 但参数需要按顺序放置.
-
-        if (this.hasPermission(MyPluginMain.PERMISSION_EXECUTE_1)) {
-            sendMessage("你有 ${MyPluginMain.PERMISSION_EXECUTE_1.id} 权限.")
-        } else {
-            sendMessage(
-                """
-                你没有 ${MyPluginMain.PERMISSION_EXECUTE_1.id} 权限.
-                可以在控制台使用 /permission 管理权限.
-            """.trimIndent()
-            )
-        }
-
-        sendMessage("/foo 的第一个参数是 $int, 第二个是 $str")
-    }
-}
-
-// 复合指令
-object MyCompositeCommand : CompositeCommand(
-    MyPluginMain, "manage",
-    description = "示例指令",
-    // prefixOptional = true // 还有更多参数可填, 此处忽略
-) {
-    // 会自动创建一个 ID 为 "org.example.example-plugin:command.manage" 的权限.
-
-    //
-    // 在控制台执行 "/manage <群号>.<群员> <持续时间>",
-    // 或在聊天群内发送 "/manage <@一个群员> <持续时间>",
-    // 或在聊天群内发送 "/manage <目标群员的群名> <持续时间>",
-    // 或在聊天群内发送 "/manage <目标群员的账号> <持续时间>"
-    @SubCommand
-    suspend fun CommandSender.mute(target: Member, duration: Int) { // 通过 /manage mute <target> <duration> 调用
-        sendMessage("/manage mute 被调用了, 参数为: $target, $duration")
-
-        val result = kotlin.runCatching {
-            target.mute(duration).toString()
-        }.getOrElse {
-            it.stackTraceToString()
-        } // 失败时返回堆栈信息
-
-
-        // 表示对 this 和 ConsoleCommandSender 一起操作
-        this.scopeWith(ConsoleCommandSender) {
-            sendMessage("结果: $result") // 同时发送给 this@CommandSender 和 ConsoleCommandSender
-        }
-    }
-
-    @SubCommand
-    suspend fun CommandSender.list() { // 执行 "/manage list" 时调用这个函数
-        sendMessage("/manage list 被调用了")
-    }
-
-    // 支持 Image 类型, 需在聊天中执行此指令.
-    @SubCommand
-    suspend fun CommandSender.test(image: Image) { // 执行 "/manage test <一张图片>" 时调用这个函数
-        sendMessage("/manage image 被调用了, 图片是 ${image.imageId}")
-    }
-}

tools/intellij-plugin/src/main/kotlin/net/mamoe/mirai/console/intellij/diagnostics/PluginDescriptionChecker.kt

@@ -9,10 +9,21 @@
 
 package net.mamoe.mirai.console.intellij.diagnostics
 
+import com.intellij.psi.PsiElement
+import net.mamoe.mirai.console.compiler.common.resolve.ResolveContextKind
+import net.mamoe.mirai.console.compiler.common.resolve.resolveContextKind
+import net.mamoe.mirai.console.intellij.resolve.findChildren
+import net.mamoe.mirai.console.intellij.resolve.resolveStringConstantValue
+import net.mamoe.mirai.console.intellij.resolve.valueParameters
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
-import org.jetbrains.kotlin.psi.KtDeclaration
+import org.jetbrains.kotlin.diagnostics.Diagnostic
+import org.jetbrains.kotlin.idea.caches.resolve.resolveToCall
+import org.jetbrains.kotlin.idea.search.usagesSearch.descriptor
+import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.resolve.checkers.DeclarationChecker
 import org.jetbrains.kotlin.resolve.checkers.DeclarationCheckerContext
+import java.util.*
+import kotlin.contracts.contract
 
 /**
  * Checks:
@@ -20,11 +31,95 @@ import org.jetbrains.kotlin.resolve.checkers.DeclarationCheckerContext
  * - plugin name
  */
 class PluginDescriptionChecker : DeclarationChecker {
+    companion object {
+        fun checkPluginName(declaration: KtDeclaration, value: String): Diagnostic? {
+            return null // TODO: 2020/9/18  checkPluginName
+        }
+
+        fun checkPluginId(declaration: KtDeclaration, value: String): Diagnostic? {
+            return null // TODO: 2020/9/18  checkPluginId
+        }
+
+        fun checkPluginVersion(declaration: KtDeclaration, value: String): Diagnostic? {
+            return null // TODO: 2020/9/18  checkPluginVersion
+        }
+    }
+
+    fun PsiElement.shouldPerformCheck(): Boolean {
+        contract {
+            returns(true) implies (this@shouldPerformCheck is KtCallExpression)
+        }
+        return when (this) {
+            is KtCallExpression,
+            -> true
+            else -> true
+        }
+    }
+
+    private val checkersMap: EnumMap<ResolveContextKind, (declaration: KtDeclaration, value: String) -> Diagnostic?> =
+        EnumMap<ResolveContextKind, (declaration: KtDeclaration, value: String) -> Diagnostic?>(ResolveContextKind::class.java).apply {
+            put(ResolveContextKind.PLUGIN_NAME, ::checkPluginName)
+            put(ResolveContextKind.PLUGIN_ID, ::checkPluginId)
+            put(ResolveContextKind.PLUGIN_VERSION, ::checkPluginVersion)
+        }
+
+    fun check(
+        declaration: KtDeclaration,
+        expression: KtCallExpression,
+        context: DeclarationCheckerContext,
+    ) {
+        val call = expression.calleeExpression.getResolvedCallOrResolveToCall(context) ?: return // unresolved
+        call.valueArgumentsByIndex?.forEach { resolvedValueArgument ->
+            for ((parameter, argument) in call.valueParameters.zip(resolvedValueArgument.arguments)) {
+                val parameterContextKind = parameter.resolveContextKind
+                if (checkersMap.containsKey(parameterContextKind)) {
+                    val value = argument.getArgumentExpression()
+                        ?.resolveStringConstantValue(context.bindingContext) ?: continue
+                    for ((kind, fn) in checkersMap) {
+                        if (parameterContextKind == kind) fn(declaration, value)?.let { context.report(it) }
+                    }
+                }
+            }
+        }
+    }
+
     override fun check(
         declaration: KtDeclaration,
         descriptor: DeclarationDescriptor,
         context: DeclarationCheckerContext,
     ) {
+        println("${declaration::class.qualifiedName}   $declaration")
+        when (declaration) {
+            is KtObjectDeclaration -> {
+                // check super type constructor
+                val superTypeCallEntry = declaration.findChildren<KtSuperTypeList>()?.findChildren<KtSuperTypeCallEntry>() ?: return
+                val constructorCall = superTypeCallEntry.findChildren<KtConstructorCalleeExpression>()?.resolveToCall() ?: return
+                val valueArgumentList = superTypeCallEntry.findChildren<KtValueArgumentList>() ?: return
+                valueArgumentList.arguments.asSequence().mapNotNull(KtValueArgument::getArgumentExpression).forEach {
+                    if (it.shouldPerformCheck()) {
+                        check(declaration, it as KtCallExpression, context)
+                    }
+                }
 
             }
+            is KtClassOrObject -> {
+                // check constructor
+
+                val superTypeCallEntry = declaration.findChildren<KtSuperTypeList>()?.findChildren<KtSuperTypeCallEntry>() ?: return
+
+                val constructorCall = superTypeCallEntry.findChildren<KtConstructorCalleeExpression>()?.resolveToCall() ?: return
+                val valueArgumentList = superTypeCallEntry.findChildren<KtValueArgumentList>() ?: return
+
+
+            }
+            else -> {
+                declaration.children.filter { it.shouldPerformCheck() }.forEach { element ->
+                    if (element is KtDeclaration) {
+                        val desc = element.descriptor ?: return@forEach
+                        check(element, desc, context)
+                    }
+                }
+            }
+        }
+    }
 }

tools/intellij-plugin/src/main/kotlin/net/mamoe/mirai/console/intellij/diagnostics/diagnosticsUtil.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Mamoe Technologies and contributors.
+ *
+ * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ * https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.console.intellij.diagnostics
+
+import net.mamoe.mirai.console.intellij.resolve.getResolvedCallOrResolveToCall
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
+import org.jetbrains.kotlin.diagnostics.Diagnostic
+import org.jetbrains.kotlin.psi.KtElement
+import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
+import org.jetbrains.kotlin.resolve.checkers.DeclarationCheckerContext
+import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
+
+fun DeclarationCheckerContext.report(diagnostic: Diagnostic) {
+    return this.trace.report(diagnostic)
+}
+
+val DeclarationCheckerContext.bindingContext get() = this.trace.bindingContext
+
+fun KtElement?.getResolvedCallOrResolveToCall(
+    context: DeclarationCheckerContext,
+    bodyResolveMode: BodyResolveMode = BodyResolveMode.PARTIAL,
+): ResolvedCall<out CallableDescriptor>? {
+    return this.getResolvedCallOrResolveToCall(context.bindingContext, bodyResolveMode)
+}

tools/intellij-plugin/src/main/kotlin/net/mamoe/mirai/console/intellij/line/marker/CommandDeclarationLineMarkerProvider.kt

@@ -16,6 +16,7 @@ import com.intellij.openapi.actionSystem.AnAction
 import com.intellij.openapi.editor.markup.GutterIconRenderer
 import com.intellij.psi.PsiElement
 import net.mamoe.mirai.console.intellij.Icons
+import net.mamoe.mirai.console.intellij.resolve.getElementForLineMark
 import net.mamoe.mirai.console.intellij.resolve.isSimpleCommandHandlerOrCompositeCommandSubCommand
 import org.jetbrains.kotlin.psi.KtNamedFunction
 

tools/intellij-plugin/src/main/kotlin/net/mamoe/mirai/console/intellij/line/marker/PluginMainLineMarkerProvider.kt

@@ -18,6 +18,9 @@ import com.intellij.psi.PsiElement
 import com.intellij.util.castSafelyTo
 import net.mamoe.mirai.console.compiler.common.resolve.PLUGIN_FQ_NAME
 import net.mamoe.mirai.console.intellij.Icons
+import net.mamoe.mirai.console.intellij.resolve.allSuperNames
+import net.mamoe.mirai.console.intellij.resolve.getElementForLineMark
+import net.mamoe.mirai.console.intellij.resolve.parents
 import org.jetbrains.kotlin.nj2k.postProcessing.resolve
 import org.jetbrains.kotlin.psi.KtClass
 import org.jetbrains.kotlin.psi.KtConstructor

tools/intellij-plugin/src/main/kotlin/net/mamoe/mirai/console/intellij/line/marker/util.kt

@@ -1,51 +0,0 @@
-/*
- * Copyright 2020 Mamoe Technologies and contributors.
- *
- * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
- * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
- *
- * https://github.com/mamoe/mirai/blob/master/LICENSE
- */
-
-package net.mamoe.mirai.console.intellij.line.marker
-
-import com.intellij.psi.PsiElement
-import com.intellij.psi.PsiFile
-import org.jetbrains.kotlin.idea.refactoring.fqName.getKotlinFqName
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.nj2k.postProcessing.resolve
-import org.jetbrains.kotlin.psi.*
-
-
-internal val KtPureClassOrObject.allSuperTypes: Sequence<KtSuperTypeListEntry>
-    get() = sequence {
-        yieldAll(superTypeListEntries)
-        for (list in superTypeListEntries.asSequence()) {
-            yieldAll((list.typeAsUserType?.referenceExpression?.resolve() as? KtClass)?.allSuperTypes.orEmpty())
-        }
-    }
-
-internal inline fun <reified E> PsiElement.findParent(): E? = this.parents.filterIsInstance<E>().firstOrNull()
-
-internal val KtClassOrObject.allSuperNames: Sequence<FqName> get() = allSuperTypes.mapNotNull { it.getKotlinFqName() }
-
-val PsiElement.parents: Sequence<PsiElement>
-    get() {
-        val seed = if (this is PsiFile) null else parent
-        return generateSequence(seed) { if (it is PsiFile) null else it.parent }
-    }
-
-internal fun getElementForLineMark(callElement: PsiElement): PsiElement =
-    when (callElement) {
-        is KtSimpleNameExpression -> callElement.getReferencedNameElement()
-        else ->
-            // a fallback,
-            //but who knows what to reference in KtArrayAccessExpression ?
-            generateSequence(callElement, { it.firstChild }).last()
-    }
-
-internal val KtAnnotationEntry.annotationClass: KtClass?
-    get() = calleeExpression?.constructorReferenceExpression?.resolve()?.findParent<KtClass>()
-
-internal fun KtAnnotated.hasAnnotation(fqName: FqName): Boolean =
-    this.annotationEntries.any { it.annotationClass?.getKotlinFqName() == fqName }

tools/intellij-plugin/src/main/kotlin/net/mamoe/mirai/console/intellij/resolve/resolveIdea.kt

@@ -9,10 +9,25 @@
 
 package net.mamoe.mirai.console.intellij.resolve
 
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiFile
+import net.mamoe.mirai.console.compiler.common.castOrNull
 import net.mamoe.mirai.console.compiler.common.resolve.COMPOSITE_COMMAND_SUB_COMMAND_FQ_NAME
 import net.mamoe.mirai.console.compiler.common.resolve.SIMPLE_COMMAND_HANDLER_COMMAND_FQ_NAME
-import net.mamoe.mirai.console.intellij.line.marker.hasAnnotation
+import org.jetbrains.kotlin.descriptors.CallableDescriptor
-import org.jetbrains.kotlin.psi.KtNamedFunction
+import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor
+import org.jetbrains.kotlin.descriptors.VariableDescriptor
+import org.jetbrains.kotlin.idea.caches.resolve.resolveToCall
+import org.jetbrains.kotlin.idea.refactoring.fqName.getKotlinFqName
+import org.jetbrains.kotlin.name.FqName
+import org.jetbrains.kotlin.nj2k.postProcessing.resolve
+import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.resolve.BindingContext
+import org.jetbrains.kotlin.resolve.calls.callUtil.getCall
+import org.jetbrains.kotlin.resolve.calls.callUtil.getResolvedCall
+import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
+import org.jetbrains.kotlin.resolve.constants.StringValue
+import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 
 
 /**
@@ -27,3 +42,91 @@ fun KtNamedFunction.isSimpleCommandHandler(): Boolean = this.hasAnnotation(SIMPL
 
 fun KtNamedFunction.isSimpleCommandHandlerOrCompositeCommandSubCommand(): Boolean =
     this.isSimpleCommandHandler() || this.isCompositeCommandSubCommand()
+
+
+val KtPureClassOrObject.allSuperTypes: Sequence<KtSuperTypeListEntry>
+    get() = sequence {
+        yieldAll(superTypeListEntries)
+        for (list in superTypeListEntries.asSequence()) {
+            yieldAll((list.typeAsUserType?.referenceExpression?.resolve() as? KtClass)?.allSuperTypes.orEmpty())
+        }
+    }
+
+fun KtConstructorCalleeExpression.getTypeAsUserType(): KtUserType? {
+    val reference = typeReference
+    if (reference != null) {
+        val element = reference.typeElement
+        if (element is KtUserType) {
+            return element
+        }
+    }
+    return null
+}
+
+inline fun <reified E> PsiElement.findParent(): E? = this.parents.filterIsInstance<E>().firstOrNull()
+
+val KtClassOrObject.allSuperNames: Sequence<FqName> get() = allSuperTypes.mapNotNull { it.getKotlinFqName() }
+
+val PsiElement.parents: Sequence<PsiElement>
+    get() {
+        val seed = if (this is PsiFile) null else parent
+        return generateSequence(seed) { if (it is PsiFile) null else it.parent }
+    }
+
+fun getElementForLineMark(callElement: PsiElement): PsiElement =
+    when (callElement) {
+        is KtSimpleNameExpression -> callElement.getReferencedNameElement()
+        else ->
+            // a fallback,
+            //but who knows what to reference in KtArrayAccessExpression ?
+            generateSequence(callElement, { it.firstChild }).last()
+    }
+
+val KtAnnotationEntry.annotationClass: KtClass?
+    get() = calleeExpression?.constructorReferenceExpression?.resolve()?.findParent<KtClass>()
+
+fun KtAnnotated.hasAnnotation(fqName: FqName): Boolean =
+    this.annotationEntries.any { it.annotationClass?.getKotlinFqName() == fqName }
+
+val PsiElement.allChildrenFlat: Sequence<PsiElement>
+    get() {
+        return sequence {
+            for (child in children) {
+                yield(child)
+                yieldAll(child.allChildrenFlat)
+            }
+        }
+    }
+
+inline fun <reified E : PsiElement> PsiElement.findChildren(): E? = this.children.find { it is E } as E?
+
+fun KtElement?.getResolvedCallOrResolveToCall(
+    context: BindingContext,
+    bodyResolveMode: BodyResolveMode = BodyResolveMode.PARTIAL,
+): ResolvedCall<out CallableDescriptor>? {
+    return this?.getCall(context)?.getResolvedCall(context) ?: this?.resolveToCall(bodyResolveMode)
+}
+
+val ResolvedCall<out CallableDescriptor>.valueParameters: List<ValueParameterDescriptor> get() = this.resultingDescriptor.valueParameters
+
+fun KtExpression.resolveStringConstantValue(bindingContext: BindingContext): String? {
+    when (this) {
+        is KtStringTemplateExpression -> {
+            if (hasInterpolation()) return null
+            return entries.joinToString("") { it.text }
+        }
+        is KtCallExpression -> {
+            val callee = this.calleeExpression?.getResolvedCallOrResolveToCall(bindingContext)?.resultingDescriptor
+            if (callee is VariableDescriptor) {
+                val compileTimeConstant = callee.compileTimeInitializer ?: return null
+                return compileTimeConstant.castOrNull<StringValue>()?.value
+            }
+            return null
+        }
+        is KtConstantExpression -> {
+            // TODO: 2020/9/18  KtExpression.resolveStringConstantValue: KtConstantExpression
+        }
+        else -> return null
+    }
+    return null
+}