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Annotation Processor for Kotlin
/*
* Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.analysis.api.components
import org.jetbrains.kotlin.analysis.api.KtAnalysisSession
import org.jetbrains.kotlin.analysis.api.lifetime.KtLifetimeOwner
import org.jetbrains.kotlin.analysis.api.lifetime.KtLifetimeToken
import org.jetbrains.kotlin.analysis.api.lifetime.withValidityAssertion
import org.jetbrains.kotlin.analysis.api.symbols.KtCallableSymbol
import org.jetbrains.kotlin.analysis.api.types.KtSubstitutor
import org.jetbrains.kotlin.psi.KtExpression
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.psi.KtSimpleNameExpression
public abstract class KtCompletionCandidateChecker : KtAnalysisSessionComponent() {
public abstract fun createExtensionCandidateChecker(
originalFile: KtFile,
nameExpression: KtSimpleNameExpression,
explicitReceiver: KtExpression?
): KtCompletionExtensionCandidateChecker
@Deprecated("Use createExtensionCandidateChecker() instead.")
public abstract fun checkExtensionFitsCandidate(
firSymbolForCandidate: KtCallableSymbol,
originalFile: KtFile,
nameExpression: KtSimpleNameExpression,
possibleExplicitReceiver: KtExpression?,
): KtExtensionApplicabilityResult
}
public interface KtCompletionExtensionCandidateChecker {
context(KtAnalysisSession)
public fun computeApplicability(candidate: KtCallableSymbol): KtExtensionApplicabilityResult
}
public sealed class KtExtensionApplicabilityResult : KtLifetimeOwner {
public sealed class Applicable : KtExtensionApplicabilityResult() {
public abstract val receiverCastRequired: Boolean
public abstract val substitutor: KtSubstitutor
}
public class ApplicableAsExtensionCallable(
private val _substitutor: KtSubstitutor,
private val _receiverCastRequired: Boolean,
override val token: KtLifetimeToken
) : Applicable() {
override val substitutor: KtSubstitutor = withValidityAssertion { _substitutor }
override val receiverCastRequired: Boolean get() = withValidityAssertion { _receiverCastRequired }
}
public class ApplicableAsFunctionalVariableCall(
private val _substitutor: KtSubstitutor,
private val _receiverCastRequired: Boolean,
override val token: KtLifetimeToken
) : Applicable() {
override val substitutor: KtSubstitutor get() = withValidityAssertion { _substitutor }
override val receiverCastRequired: Boolean get() = withValidityAssertion { _receiverCastRequired }
}
public class NonApplicable(
override val token: KtLifetimeToken
) : KtExtensionApplicabilityResult()
}
public interface KtCompletionCandidateCheckerMixIn : KtAnalysisSessionMixIn {
/**
* Returns an extension applicability checker for the given context [nameExpression].
* The function is meant to only be used for providing auto-completion for Kotlin in IntelliJ IDEA.
*
* The returned checker does not cache the results for individual callable candidates.
*
* @param originalFile The file being edited.
* @param nameExpression The expression under the caret in an in-memory copy of [originalFile]
* with a dummy identifier inserted. Also see `CompletionUtilCore.DUMMY_IDENTIFIER` in IntelliJ IDEA.
* @param explicitReceiver A receiver expression, if available (also from the in-memory copy of [originalFile]).
*/
public fun createExtensionCandidateChecker(
originalFile: KtFile,
nameExpression: KtSimpleNameExpression,
explicitReceiver: KtExpression?
): KtCompletionExtensionCandidateChecker {
return analysisSession.completionCandidateChecker.createExtensionCandidateChecker(
originalFile,
nameExpression,
explicitReceiver
)
}
@Deprecated("Use createExtensionCandidateChecker() instead.")
public fun KtCallableSymbol.checkExtensionIsSuitable(
originalPsiFile: KtFile,
psiFakeCompletionExpression: KtSimpleNameExpression,
psiReceiverExpression: KtExpression?,
): KtExtensionApplicabilityResult = withValidityAssertion {
@Suppress("DEPRECATION")
analysisSession.completionCandidateChecker.checkExtensionFitsCandidate(
this,
originalPsiFile,
psiFakeCompletionExpression,
psiReceiverExpression
)
}
}