@Test
    fun `can use closure with single argument call`() {
        val list = arrayListOf<Int>()
        closureOf<MutableList<Int>> { add(42) }.call(list)
        assertEquals(42, list.first())
    }

    @Test
    fun `can use closure with single nullable argument call`() {
        var passedIntoClosure: Any? = "Something non null"
        closureOf<Any?> { passedIntoClosure = this }.call(null)
        assertNull(passedIntoClosure)
    }

 * A problem is identified using a key object.
 * The implementation should be thread-safe and should support tracking problems in multiple threads, each with its own call stack.
 */
interface DynamicCallProblemReporting {
    /**
     * Begin tracking a new dynamic call on the call stack, with no problems reported in it initially.

    call(object : CallableBuildOperation<T> {
        override fun description(): BuildOperationDescriptor.Builder = BuildOperationDescriptor
            .displayName("Load configuration cache state")
            .progressDisplayName("Loading configuration cache state")
            .details(LoadDetails)

        override fun call(context: BuildOperationContext): T =

    /**
     * If value has to be created, the original value is returned without (de)serialization
     *
     * This is delicate API, because the original value is returned only for the first call of this function.
     * As such, the call should probably be guarded with additional synchronization and memoization.
     *
     * Prefer [loadOrCreateValue] unless there is a special reason.
     */

        val numClosureArgs = delegate.maximumNumberOfParameters
        val finalArgs: Array<out Any> = args.take(numClosureArgs).map { trackingProjectAccess(crossProjectModelAccess, referrerProject, it) }.toTypedArray()
        delegate.call(*finalArgs)
    }

    override fun setDelegate(delegateObject: Any) {
        delegate.delegate = trackingProjectAccess(crossProjectModelAccess, referrerProject, delegateObject)
    }

                            )
                        )
                    )
                ]
            )""".trimIndent()
        results.assert(expected)
    }

    @Test
    fun `parses call chain`() {
        val results = parse("f(1).g(2).h(3)")

        val expected = """
            FunctionCall [indexes: 10..14, line/column: 1/11..1/15, file: test] (
                name = h

 * - a `writeObject` method with no corresponding `readObject`; `writeObject` must eventually call [ObjectOutputStream.defaultWriteObject];
 * - a `readObject` method with no corresponding `writeObject`; `readObject` must eventually call [ObjectInputStream.defaultReadObject];
 * - a `writeReplace` method to allow the class to nominate a replacement to be written;

        }
    }

    private
    fun checkOutputContains(call: MethodCallExpression) {
        val receiver = call.receiver!!
        if (receiver is PropertyExpression) {
            if (receiver.propertyAsString == "output") {
                val objectExpr = receiver.objectExpression!!
                checkIndirectOutputContains(objectExpr, call)
            }
        }
    }

    private

    @Test
    fun `sets progress display name on store`() {
        // given:
        val buildOperationRunner = mock<BuildOperationRunner> {
            on { call<Unit>(any()) } doReturn Unit
        }
        val stateFile = testDirectoryProvider.file("stateFile")

        // when:
        buildOperationRunner.withStoreOperation("key") {
            StoreResult(stateFile, null)

        state.disableForCurrentThread() // <1>
        state.disableForCurrentThread() // <2>

        state.restoreForCurrentThread() // Revert call at <2>, restore to "disabled" state set by call at <1>
        assertFalse(state.isEnabledForCurrentThread())

        state.restoreForCurrentThread() // Revert call at <1>, restore to "enabled" state
        assertTrue(state.isEnabledForCurrentThread())
    }

    @Test