var lookupPropertyType = function()

in JSLib/src/odata-atom.js [548:593]
27 lines of code
9 McCabe index (conditional complexity)

    var lookupPropertyType = function (metadata, owningType, path) {
        /// <summary>Looks up the type of a property given its path in an entity type.</summary>
        /// <param name="metadata">Metadata in which to search for base and complex types.</param>
        /// <param name="owningType">Type to which property belongs.</param>
        /// <param name="path" type="String" mayBeNull="false">Property path to look at.</param>
        /// <returns type="String">The name of the property type; possibly null.</returns>

        var parts = path.split("/");
        var i, len;
        while (owningType) {
            // Keep track of the type being traversed, necessary for complex types.
            var traversedType = owningType;

            for (i = 0, len = parts.length; i < len; i++) {
                // Traverse down the structure as necessary.
                var properties = traversedType.property;
                if (!properties) {
                    break;
                }

                // Find the property by scanning the property list (might be worth pre-processing).
                var propertyFound = lookupProperty(properties, parts[i]);
                if (!propertyFound) {
                    break;
                }

                var propertyType = propertyFound.type;

                // We could in theory still be missing types, but that would
                // be caused by a malformed path.
                if (!propertyType || isPrimitiveEdmType(propertyType)) {
                    return propertyType || null;
                }

                traversedType = lookupComplexType(propertyType, metadata);
                if (!traversedType) {
                    return null;
                }
            }

            // Traverse up the inheritance chain.
            owningType = lookupEntityType(owningType.baseType, metadata);
        }

        return null;
    };