explicitReceiver: KtExpression?
    ): KtCompletionExtensionCandidateChecker = analysisSession.withValidityAssertion {
        return LazyKtCompletionExtensionCandidateChecker {
            // Double validity check is needed, as the checker may be requested some time later
            analysisSession.withValidityAssertion {

                    // Implicit lambda parameter doesn't have a source PSI.
                    descriptor.source.getPsi() == null &&
                    // But, that could be the case for a declaration from Library. Double-check the slice in the binding context
                    (descriptor.containingDeclaration.source.getPsi() as? KtFunctionLiteral)?.let { parentLambda ->

            ConstantValueKind.UnsignedShort -> KtConstantValue.KtUnsignedShortConstantValue(value as UShort, psi)

            ConstantValueKind.Double -> KtConstantValue.KtDoubleConstantValue(value as Double, psi)
            ConstantValueKind.Float -> KtConstantValue.KtFloatConstantValue(value as Float, psi)

            type.isFloat -> KtConstantValue.KtFloatConstantValue((value as Number).toFloat(), expression)
            type.isDouble -> KtConstantValue.KtDoubleConstantValue((value as Number).toDouble(), expression)
            else -> null
        }

        return constantValue?.let { KtConstantAnnotationValue(it, analysisSession.token) }
    }