Function getContextualCallSignature

test/fixtures/snapshot/typescript.js:73264–73268

(type, node)

        // If the given type is an object or union type with a single signature, and if that signature has at
        // least as many parameters as the given function, return the signature. Otherwise return undefined.
        function getContextualCallSignature(type, node) {
            var signatures = getSignaturesOfType(type, 0 /* SignatureKind.Call */);
            var applicableByArity = ts.filter(signatures, function (s) { return !isAritySmaller(s, node); });
            return applicableByArity.length === 1 ? applicableByArity[0] : getIntersectedSignatures(applicableByArity);
        }
        /** If the contextual signature has fewer parameters than the function expression, do not use it */
        function isAritySmaller(signature, target) {
            var targetParameterCount = 0;