Function getResolvedSignature

test/fixtures/snapshot/typescript.js:76931–76952

* Resolve a signature of a given call-like expression. * @param node a call-like expression to try resolve a signature for * @param candidatesOutArray an array of signature to be filled in by the function. It is passed by signature help in the language service; *

(node, candidatesOutArray, checkMode)

         * @return a signature of the call-like expression or undefined if one can't be found
         */
        function getResolvedSignature(node, candidatesOutArray, checkMode) {
            var links = getNodeLinks(node);
            // If getResolvedSignature has already been called, we will have cached the resolvedSignature.
            // However, it is possible that either candidatesOutArray was not passed in the first time,
            // or that a different candidatesOutArray was passed in. Therefore, we need to redo the work
            // to correctly fill the candidatesOutArray.
            var cached = links.resolvedSignature;
            if (cached && cached !== resolvingSignature && !candidatesOutArray) {
                return cached;
            }
            links.resolvedSignature = resolvingSignature;
            var result = resolveSignature(node, candidatesOutArray, checkMode || 0 /* CheckMode.Normal */);
            // When CheckMode.SkipGenericFunctions is set we use resolvingSignature to indicate that call
            // resolution should be deferred.
            if (result !== resolvingSignature) {
                // If signature resolution originated in control flow type analysis (for example to compute the
                // assigned type in a flow assignment) we don't cache the result as it may be based on temporary
                // types from the control flow analysis.
                links.resolvedSignature = flowLoopStart === flowLoopCount ? result : cached;
            }
            return result;
        }
        /**
         * Indicates whether a declaration can be treated as a constructor in a JavaScript
         * file.