ExplicitCollectionElementAccessMethod crashes

[WonderCsabo]

Expected Behavior

ExplicitCollectionElementAccessMethod rule should run on Kotlin code which compiles

Observed Behavior

ExplicitCollectionElementAccessMethod is crashing on Kotlin code which compiles

Steps to Reproduce

Run ExplicitCollectionElementAccessMethod rule on the following code snippet

@file:Suppress("TooManyFunctions")
@file:JvmName("FieldUtil")

package <redacted>.common.util

import androidx.databinding.ObservableBoolean
import androidx.databinding.ObservableField
import androidx.databinding.ObservableInt
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.asLiveData
import <redacted>.common.binding.InputField
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.flow.onEach

fun <T> Flow<T>.asInputField(
    scope: CoroutineScope
): InputField<T> = InputField<T>().apply {
    this@asInputField.onEach {
        this@apply.set(it)
    }
    .launchIn(scope)
}

fun <T> Flow<T>.asMutableLiveData(): MutableLiveData<T> = asLiveData() as MutableLiveData<T>

fun <T> ObservableField<T>.require(): T = get()
    ?: throw IllegalArgumentException("Value is not set")

fun ObservableInt.require(): Int = get()

fun ObservableBoolean.require(): Boolean = get()

It will result in this crash:

Analyzing '<redacted>/common/util/FieldUtil.kt' led to an exception.
The original exception message was: dotExpression must not be null
Running detekt '1.5.0' on Java '1.8.0_221-b11' on OS 'Mac OS X'.
If the exception message does not help, please feel free to create an issue on our GitHub page.
io.gitlab.arturbosch.detekt.rules.style.ExplicitCollectionElementAccessMethod.isMapMethod(ExplicitCollectionElementAccessMethod.kt:65)
io.gitlab.arturbosch.detekt.rules.style.ExplicitCollectionElementAccessMethod.visitCallExpression(ExplicitCollectionElementAccessMethod.kt:53)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitCallExpression(KtVisitorVoid.java:797)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitCallExpression(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtCallExpression.accept(KtCallExpression.java:35)
org.jetbrains.kotlin.psi.KtElementImpl.accept(KtElementImpl.java:51)
org.jetbrains.kotlin.com.intellij.psi.impl.PsiElementBase.acceptChildren(PsiElementBase.java:69)
org.jetbrains.kotlin.psi.KtTreeVisitorVoid.visitElement(KtTreeVisitorVoid.java:25)
org.jetbrains.kotlin.psi.KtVisitor.visitKtElement(KtVisitor.java:24)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtElement(KtVisitorVoid.java:25)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtElement(KtVisitorVoid.java:447)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtElement(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtVisitor.visitExpression(KtVisitor.java:182)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitExpression(KtVisitorVoid.java:169)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitExpression(KtVisitorVoid.java:659)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitExpression(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtVisitor.visitBinaryExpression(KtVisitor.java:218)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitBinaryExpression(KtVisitorVoid.java:205)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitBinaryExpression(KtVisitorVoid.java:713)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitBinaryExpression(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtBinaryExpression.accept(KtBinaryExpression.java:35)
org.jetbrains.kotlin.psi.KtElementImpl.accept(KtElementImpl.java:51)
org.jetbrains.kotlin.com.intellij.psi.impl.PsiElementBase.acceptChildren(PsiElementBase.java:69)
org.jetbrains.kotlin.psi.KtTreeVisitorVoid.visitElement(KtTreeVisitorVoid.java:25)
org.jetbrains.kotlin.psi.KtVisitor.visitKtElement(KtVisitor.java:24)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtElement(KtVisitorVoid.java:25)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtElement(KtVisitorVoid.java:447)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtElement(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtVisitor.visitExpression(KtVisitor.java:182)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitExpression(KtVisitorVoid.java:169)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitExpression(KtVisitorVoid.java:659)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitExpression(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtVisitor.visitDeclaration(KtVisitor.java:29)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitDeclaration(KtVisitorVoid.java:29)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitDeclaration(KtVisitorVoid.java:453)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitDeclaration(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtVisitor.visitNamedDeclaration(KtVisitor.java:398)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitNamedDeclaration(KtVisitorVoid.java:381)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitNamedDeclaration(KtVisitorVoid.java:959)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitNamedDeclaration(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtVisitor.visitNamedFunction(KtVisitor.java:53)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitNamedFunction(KtVisitorVoid.java:49)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitNamedFunction(KtVisitorVoid.java:483)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitNamedFunction(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtNamedFunction.accept(KtNamedFunction.java:50)
org.jetbrains.kotlin.psi.KtElementImplStub.accept(KtElementImplStub.java:59)
org.jetbrains.kotlin.com.intellij.psi.impl.source.tree.SharedImplUtil.acceptChildren(SharedImplUtil.java:200)
org.jetbrains.kotlin.com.intellij.psi.impl.source.PsiFileImpl.acceptChildren(PsiFileImpl.java:733)
org.jetbrains.kotlin.psi.KtTreeVisitorVoid.visitElement(KtTreeVisitorVoid.java:25)
org.jetbrains.kotlin.com.intellij.psi.PsiElementVisitor.visitFile(PsiElementVisitor.java:34)
org.jetbrains.kotlin.psi.KtVisitor.visitKtFile(KtVisitor.java:73)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtFile(KtVisitorVoid.java:69)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtFile(KtVisitorVoid.java:513)
org.jetbrains.kotlin.psi.KtVisitorVoid.visitKtFile(KtVisitorVoid.java:21)
org.jetbrains.kotlin.psi.KtFile.accept(KtFile.kt:242)
org.jetbrains.kotlin.psi.KtFile.accept(KtFile.kt:229)
io.gitlab.arturbosch.detekt.api.BaseRule.visit(BaseRule.kt:53)
io.gitlab.arturbosch.detekt.api.BaseRule.visitFile(BaseRule.kt:43)
io.gitlab.arturbosch.detekt.api.RuleSet.accept(RuleSet.kt:35)
io.gitlab.arturbosch.detekt.core.Detektor.analyze(Detektor.kt:76)
io.gitlab.arturbosch.detekt.core.Detektor.runSync(Detektor.kt:44)
io.gitlab.arturbosch.detekt.core.Detektor.run(Detektor.kt:28)
io.gitlab.arturbosch.detekt.core.DetektFacade.run(DetektFacade.kt:41)
io.gitlab.arturbosch.detekt.cli.runners.Runner.execute(Runner.kt:39)
io.gitlab.arturbosch.detekt.cli.Main.main(Main.kt:16)

Your Environment

• Version of detekt used: 1.5.0
• Version of Gradle used (if applicable): 6.1
• Operating System and version: 10.14.6

[schalkms]

Thanks for reporting this problem.