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// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package org.jetbrains.uast.kotlin.psi
import com.intellij.openapi.components.ServiceManager
import com.intellij.psi.*
import com.intellij.psi.impl.light.*
import org.jetbrains.annotations.ApiStatus
import org.jetbrains.kotlin.asJava.elements.KotlinLightTypeParameterBuilder
import org.jetbrains.kotlin.asJava.elements.KotlinLightTypeParameterListBuilder
import org.jetbrains.kotlin.asJava.elements.KtLightAnnotationForSourceEntry
import org.jetbrains.kotlin.lexer.KtTokens
import org.jetbrains.kotlin.name.StandardClassIds
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.utils.addToStdlib.safeAs
import org.jetbrains.uast.UastErrorType
import org.jetbrains.uast.kotlin.BaseKotlinUastResolveProviderService
import org.jetbrains.uast.kotlin.lz
@ApiStatus.Internal
class UastFakeLightMethod(
original: KtFunction,
containingClass: PsiClass,
) : UastFakeLightMethodBase<KtFunction>(original, containingClass) {
private val _typeParameterList by lz {
KotlinLightTypeParameterListBuilder(this).also { paramList ->
for ((i, p) in original.typeParameters.withIndex()) {
paramList.addParameter(
object : KotlinLightTypeParameterBuilder(
p.name ?: "__no_name__",
this,
i,
p
) {
private val myExtendsList by lz {
super.getExtendsList().apply {
p.extendsBound?.let { extendsBound ->
baseResolveProviderService.resolveToType(extendsBound, this@UastFakeLightMethod)
?.safeAs<PsiClassType>()
?.let { addReference(it) }
}
}
}
override fun getExtendsList(): LightReferenceListBuilder = myExtendsList
}
)
}
}
}
override fun getTypeParameterList(): PsiTypeParameterList = _typeParameterList
private val _parameterList: PsiParameterList by lz {
object : LightParameterListBuilder(original.manager, original.language) {
override fun getParent(): PsiElement = this@UastFakeLightMethod
override fun getContainingFile(): PsiFile = parent.containingFile
init {
val parameterList = this
original.receiverTypeReference?.let { receiver ->
this.addParameter(
UastKotlinPsiParameterBase(
"\$this\$${original.name}",
baseResolveProviderService.resolveToType(receiver, this@UastFakeLightMethod)
?: UastErrorType,
parameterList,
receiver
)
)
}
for ((i, p) in original.valueParameters.withIndex()) {
this.addParameter(
UastKotlinPsiParameter(
p.name ?: "p$i",
p.typeReference?.let { typeReference ->
baseResolveProviderService.resolveToType(typeReference, this@UastFakeLightMethod)
} ?: UastErrorType,
parameterList,
original.language,
p.isVarArg,
p.defaultValue,
p
)
)
}
}
}
}
override fun getParameterList(): PsiParameterList = _parameterList
}
@ApiStatus.Internal
class UastFakeLightPrimaryConstructor(
original: KtClassOrObject,
lightClass: PsiClass,
) : UastFakeLightMethodBase<KtClassOrObject>(original, lightClass) {
override fun isConstructor(): Boolean = true
}
@ApiStatus.Internal
abstract class UastFakeLightMethodBase<T: KtDeclaration>(
val original: T,
containingClass: PsiClass,
) : LightMethodBuilder(
original.manager,
original.language,
original.name ?: "<no name provided>",
LightParameterListBuilder(original.manager, original.language),
LightModifierList(original.manager)
) {
init {
this.containingClass = containingClass
if (original.safeAs<KtNamedFunction>()?.isTopLevel == true) {
addModifier(PsiModifier.STATIC)
}
}
override fun hasModifierProperty(name: String): Boolean {
if (name == PsiModifier.PUBLIC || name == PsiModifier.PROTECTED || name == PsiModifier.PRIVATE) {
if (original.hasModifier(KtTokens.PRIVATE_KEYWORD)) {
return name == PsiModifier.PRIVATE
}
if (original.hasModifier(KtTokens.PROTECTED_KEYWORD)) {
return name == PsiModifier.PROTECTED
}
// TODO: inherited via override
return name == PsiModifier.PUBLIC
}
// TODO: modality, special keywords, such as strictfp, synchronized, external, etc.
return super.hasModifierProperty(name)
}
protected val baseResolveProviderService: BaseKotlinUastResolveProviderService by lz {
ServiceManager.getService(BaseKotlinUastResolveProviderService::class.java)
?: error("${BaseKotlinUastResolveProviderService::class.java.name} is not available for ${this::class.simpleName}")
}
private val _annotations: Array<PsiAnnotation> by lz {
original.annotationEntries.map { entry ->
KtLightAnnotationForSourceEntry(
name = entry.shortName?.identifier,
lazyQualifiedName = { baseResolveProviderService.qualifiedAnnotationName(entry) },
kotlinOrigin = entry,
parent = original,
lazyClsDelegate = null
)
}.toTypedArray()
}
override fun getAnnotations(): Array<PsiAnnotation> {
return _annotations
}
override fun hasAnnotation(fqn: String): Boolean {
return _annotations.find { it.hasQualifiedName(fqn) } != null
}
override fun isDeprecated(): Boolean {
return hasAnnotation(StandardClassIds.Annotations.Deprecated.asFqNameString()) ||
hasAnnotation(CommonClassNames.JAVA_LANG_DEPRECATED) ||
super.isDeprecated()
}
override fun isConstructor(): Boolean {
return original is KtConstructor<*>
}
override fun getReturnType(): PsiType? {
return baseResolveProviderService.getType(original, this)
}
override fun getParent(): PsiElement? = containingClass
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false
other as UastFakeLightMethodBase<*>
if (original != other.original) return false
return true
}
override fun hashCode(): Int = original.hashCode()
}
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